docs: update changelog for release

docs: fix branch name in chglog configuration
Fix the main branch name in the template CHANGELOG file for the git chglog tool.
2021-03-28 17:14:48 +01:00 · 2021-03-28 17:09:53 +01:00 · 2021-03-27 17:34:41 +00:00 · 2021-03-27 17:31:41 +00:00 · 2021-03-27 17:29:28 +00:00 · 2021-03-27 17:27:47 +00:00
58 changed files with 979 additions and 2949 deletions
@@ -1 +0,0 @@
-prometheus-fail2ban-exporter
@@ -1,13 +0,0 @@
-# Editor configuration, see http://editorconfig.org
-root = true
-
-[*]
-charset = utf-8
-end_of_line = lf
-indent_size = 2
-indent_style = space
-insert_final_newline = false
-trim_trailing_whitespace = true
-
-[{Makefile,*.go}]
-indent_style = tab
@@ -1,29 +0,0 @@
-name: "Lint Golang files"
-
-on:
-  pull_request:
-    types: [ "opened", "reopened", "synchronize" ]
-  push:
-    branches: [ '**' ]
-    tags-ignore: [ '**' ]
-  workflow_dispatch: {}
-
-permissions:
-  contents: read
-
-jobs:
-  golangci:
-    name: "Run golang CI linter"
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        go: [ stable ]
-        os: [ ubuntu-latest-amd64, ubuntu-latest-arm64 ]
-    steps:
-    - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
-    - uses: actions/setup-go@924ae3a1cded613372ab5595356fb5720e22ba16 # v6.5.0
-      with:
-        go-version: ${{ matrix.go }}
-    - uses: golangci/golangci-lint-action@ba0d7d2ec06a0ea1cb5fa41b2e4a3ab91d21278a # v9.3.0
-      with:
-        version: v2.12.2 # renovate: datasource=github-releases depName=golangci/golangci-lint
@@ -1,57 +0,0 @@
-name: "Run Golang tests"
-
-on:
-  pull_request:
-    types: [ "opened", "reopened", "synchronize" ]
-  push:
-    branches: [ '**' ]
-    tags-ignore: [ '**' ]
-  workflow_dispatch: {}
-
-jobs:
-  # integration-test:
-  #   name: "Run integration tests"
-  #   runs-on: ${{ matrix.os }}
-  #   strategy:
-  #     matrix:
-  #       go: [ stable ]
-  #       os: [ ubuntu-latest-amd64, ubuntu-latest-arm64 ]
-  #   steps:
-  #   - uses: actions/checkout@v4.3.0
-  #   - uses: actions/setup-go@v5.5.0
-  #     with:
-  #       go-version: ${{ matrix.go }}
-  #   - env:
-  #       GOPROXY: ${{ vars.GOPROXY }}
-  #     run: make test/integration
-
-  unit-test:
-    name: "Run unit tests"
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        go: [ stable ]
-        os: [ ubuntu-latest-amd64, ubuntu-latest-arm64 ]
-    steps:
-    - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
-    - uses: actions/setup-go@924ae3a1cded613372ab5595356fb5720e22ba16 # v6.5.0
-      with:
-        go-version: ${{ matrix.go }}
-    - env:
-        GOPROXY: ${{ vars.GOPROXY }}
-      run: make test/unit
-    - id: coverage
-      name: Check coverage
-      run: |
-        coverage="$(make test/coverage | grep total | awk '{ print substr($3, 1, length($3)-1); }')"
-        echo "total_coverage=$coverage" >> $GITHUB_OUTPUT
-        echo "Total coverage: ${coverage}%"
-    - name: Fail if coverage is to low
-      run: |
-        threshold=5
-        total_coverage=${{ steps.coverage.outputs.total_coverage }}
-
-        if (( ${total_coverage%.*} < ${threshold} )); then
-          echo "ERROR: Coverage (${total_coverage}%) is below the threshold (${threshold}%)." 1>&2
-          exit 1
-        fi
@@ -1,19 +0,0 @@
-name: "Lint Markdown files"
-
-on:
-  pull_request:
-    types: [ "opened", "reopened", "synchronize" ]
-  push:
-    branches: [ '*' ]
-    tags-ignore: [ '*' ]
-  workflow_dispatch: {}
-
-jobs:
-  markdown-lint:
-    name: "Run markdown linter"
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
-    - uses: DavidAnson/markdownlint-cli2-action@ded1f9488f68a970bc66ea5619e13e9b52e601cd # v23.2.0
-      with:
-        globs: '**/*.md'
@@ -1,53 +0,0 @@
-name: "Release"
-
-on:
-  push:
-    tags: [ '**' ]
-
-permissions:
-  contents: write
-
-jobs:
-  release:
-    name: "Release application"
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
-    - uses: docker/setup-qemu-action@96fe6ef7f33517b61c61be40b68a1882f3264fb8 # v4.2.0
-    - uses: actions/setup-go@924ae3a1cded613372ab5595356fb5720e22ba16 # v6.5.0
-      with:
-        go-version: stable
-    - uses: docker/login-action@af1e73f918a031802d376d3c8bbc3fe56130a9b0 # v4.4.0
-      with:
-        registry: git.cryptic.systems
-        username: ${{ github.repository_owner }}
-        password: ${{ secrets.GIT_CRYPTIC_SYSTEMS_PACKAGE_REGISTRY_TOKEN }}
-    - env:
-        GITEA_TOKEN: ${{ secrets.GIT_CRYPTIC_SYSTEMS_PACKAGE_REGISTRY_TOKEN }}
-        GONOSUMDB: ${{ vars.GONOSUMDB }}
-        GOPROXY: ${{ vars.GOPROXY }}
-      uses: goreleaser/goreleaser-action@f06c13b6b1a9625abc9e6e439d9c05a8f2190e94 # v7.2.3
-      with:
-        version: v2.17.0 # renovate: datasource=github-releases depName=goreleaser/goreleaser
-        args: release --clean
-
-  sync-to-hub-docker-io:
-    name: "Upload Images to docker.io"
-    needs:
-    - release
-    runs-on: ubuntu-latest
-    steps:
-    - name: Copy images to docker.io
-      run: |
-        TAG=$(echo ${{ github.ref_name }} | sed 's/v//gm')
-
-        apt-get update --yes
-        apt-get install --yes skopeo
-        skopeo copy \
-          --all \
-          --dest-password ${{ secrets.DOCKER_IO_PASSWORD }} \
-          --dest-username ${{ secrets.DOCKER_IO_USERNAME }} \
-          --src-password ${{ secrets.GIT_CRYPTIC_SYSTEMS_PACKAGE_REGISTRY_TOKEN }} \
-          --src-username volker.raschek \
-            docker://git.cryptic.systems/volker.raschek/prometheus-fail2ban-exporter:${TAG} \
-            docker://docker.io/volkerraschek/prometheus-fail2ban-exporter:${TAG}
@@ -1,20 +0,0 @@
-name: Update Docker Hub Description
-
-on:
-  push:
-    branches: [ 'master' ]
-    paths: [ 'README.md' ]
-  workflow_dispatch: {}
-
-jobs:
-  update-description-on-hub-docker-io:
-    runs-on:
-    - ubuntu-latest
-    steps:
-    - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
-    - uses: peter-evans/dockerhub-description@1b9a80c056b620d92cedb9d9b5a223409c68ddfa # v5.0.0
-      with:
-        username: ${{ secrets.DOCKER_IO_USERNAME }}
-        password: ${{ secrets.DOCKER_IO_PASSWORD }}
-        repository: volkerraschek/prometheus-fail2ban-exporter
-        readme-filepath: README.md
@@ -1,3 +1,6 @@
-prometheus-fail2ban-exporter
-coverage.*
-dist
+.idea/
+vendor/
+*.iml
+
+build/
+dist/
@@ -0,0 +1,49 @@
+image: golang:latest
+
+before_script:
+  - make install-deps
+
+stages:
+  - test
+  - build
+
+format:
+  stage: test
+  script:
+    - make format
+
+test:
+  stage: test
+  script:
+    - make test
+
+build:
+  stage: build
+  only:
+    - main
+    - tags
+  script:
+    - git fetch --tags
+    - make build/snapshot
+  artifacts:
+    paths:
+      - dist/*.tar.gz
+      - dist/checksums.txt
+    expire_in: 1 day
+
+docker-gitlab:
+  stage: build
+  only:
+    - main
+    - tags
+  image: docker:stable
+  services:
+    - docker:dind
+  before_script:
+    - apk add git
+    - apk add make
+    - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
+  script:
+    - make docker/build-latest
+    - make docker/build-tag
+    - docker push registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter
@@ -1,13 +0,0 @@
-version: "2"
-linters:
-  default: standard
-  enable:
-  - errname
-  - gosec
-
-  exclusions:
-    rules: []
-    warn-unused: true
-
-run:
-  tests: true
@@ -1,175 +0,0 @@
-project_name: prometheus-fail2ban-exporter
-
-archives:
- formats: [ "tar.xz" ]
-  files:
-  - README.md
-  - LICENSE
-
-before:
-  hooks:
-  - go mod tidy
-
-builds:
- main: main.go
-  binary: >-
-    {{ .ProjectName }}-
-    {{- .Version }}-
-    {{- .Os }}-
-    {{- if eq .Arch "amd64" }}amd64
-    {{- else if eq .Arch "amd64_v1" }}amd64
-    {{- else }}{{ .Arch }}{{ end }}
-    {{- if .Arm }}-{{ .Arm }}{{ end }}
-  env:
-  - CGO_ENABLED=0
-  - GONOSUMDB={{ .Env.GONOSUMDB }}
-  - GOPROXY={{ .Env.GOPROXY }}
-  goos:
-  - linux
-  goarch:
-  - amd64
-  - arm
-  - arm64
-  - riscv64
-  goarm:
-  - "6"
-  - "7"
-  flags:
-  - -trimpath
-  ldflags:
-  - -s -w -X 'main.version={{ trimprefix .Tag "v" }}' -X 'main.date={{ time "2006-01-02T15:04:05Z07:00" }}'
-
-changelog:
-  filters:
-    exclude:
-    - '^chore'
-    - '^docs'
-    - '^test'
-    - Merge pull request
-    - Merge branch
-    - go mod tidy
-  format: "{{.SHA}}: {{.Message}} (@{{.AuthorUsername}})"
-  groups:
-  - title: Features
-    regexp: '^.*?feat(\([[:word:]]+\))??!?:.+$'
-    order: 0
-  - title: "Bug fixes"
-    regexp: '^.*?fix(\([[:word:]]+\))??!?:.+$'
-    order: 1
-  - title: Others
-    order: 999
-  sort: asc
-  use: git
-
-dockers:
- build_flag_templates:
-  - --label=org.opencontainers.image.created={{ time "2006-01-02T15:04:05Z07:00" }}
-  - --label=org.opencontainers.image.description={{ .ProjectName }}
-  - --label=org.opencontainers.image.documentation={{ .ProjectName }}
-  - --label=org.opencontainers.image.revision={{ .FullCommit }}
-  - --label=org.opencontainers.image.source={{ .GitURL }}
-  - --label=org.opencontainers.image.title={{ .ProjectName }}
-  - --label=org.opencontainers.image.url=https://git.cryptic.systems/volker.raschek/{{ .ProjectName }}
-  - --label=org.opencontainers.image.version={{ trimprefix .Tag "v" }}
-  - --platform=linux/amd64
-  - --pull
-  dockerfile: Dockerfile
-  goarch: amd64
-  goos: linux
-  image_templates:
-  - 'git.cryptic.systems/volker.raschek/{{ .ProjectName }}:{{ trimprefix .Tag "v" }}-amd64'
-  skip_push: false
-  use: buildx
-
- build_flag_templates:
-  - --label=org.opencontainers.image.created={{ time "2006-01-02T15:04:05Z07:00" }}
-  - --label=org.opencontainers.image.description={{ .ProjectName }}
-  - --label=org.opencontainers.image.documentation={{ .ProjectName }}
-  - --label=org.opencontainers.image.revision={{ .FullCommit }}
-  - --label=org.opencontainers.image.source={{ .GitURL }}
-  - --label=org.opencontainers.image.title={{ .ProjectName }}
-  - --label=org.opencontainers.image.url=https://git.cryptic.systems/volker.raschek/{{ .ProjectName }}
-  - --label=org.opencontainers.image.version={{ trimprefix .Tag "v" }}
-  - --platform=linux/arm/v6
-  - --pull
-  dockerfile: Dockerfile
-  goarch: arm
-  goarm: "6"
-  goos: linux
-  image_templates:
-  - 'git.cryptic.systems/volker.raschek/{{ .ProjectName }}:{{ trimprefix .Tag "v" }}-arm-v6'
-  skip_push: false
-  use: buildx
-
- build_flag_templates:
-  - --label=org.opencontainers.image.created={{ time "2006-01-02T15:04:05Z07:00" }}
-  - --label=org.opencontainers.image.description={{ .ProjectName }}
-  - --label=org.opencontainers.image.documentation={{ .ProjectName }}
-  - --label=org.opencontainers.image.revision={{ .FullCommit }}
-  - --label=org.opencontainers.image.source={{ .GitURL }}
-  - --label=org.opencontainers.image.title={{ .ProjectName }}
-  - --label=org.opencontainers.image.url=https://git.cryptic.systems/volker.raschek/{{ .ProjectName }}
-  - --label=org.opencontainers.image.version={{ trimprefix .Tag "v" }}
-  - --platform=linux/arm/v7
-  - --pull
-  dockerfile: Dockerfile
-  goarch: arm
-  goarm: "7"
-  goos: linux
-  image_templates:
-  - 'git.cryptic.systems/volker.raschek/{{ .ProjectName }}:{{ trimprefix .Tag "v" }}-arm-v7'
-  skip_push: false
-  use: buildx
-
- build_flag_templates:
-  - --label=org.opencontainers.image.created={{ time "2006-01-02T15:04:05Z07:00" }}
-  - --label=org.opencontainers.image.description={{ .ProjectName }}
-  - --label=org.opencontainers.image.documentation={{ .ProjectName }}
-  - --label=org.opencontainers.image.revision={{ .FullCommit }}
-  - --label=org.opencontainers.image.source={{ .GitURL }}
-  - --label=org.opencontainers.image.title={{ .ProjectName }}
-  - --label=org.opencontainers.image.url=https://git.cryptic.systems/volker.raschek/{{ .ProjectName }}
-  - --label=org.opencontainers.image.version={{ trimprefix .Tag "v" }}
-  - --platform=linux/arm64
-  - --pull
-  dockerfile: Dockerfile
-  goarch: arm64
-  goos: linux
-  image_templates:
-  - 'git.cryptic.systems/volker.raschek/{{ .ProjectName }}:{{ trimprefix .Tag "v" }}-arm64'
-  skip_push: false
-  use: buildx
-
- build_flag_templates:
-  - --label=org.opencontainers.image.created={{ time "2006-01-02T15:04:05Z07:00" }}
-  - --label=org.opencontainers.image.description={{ .ProjectName }}
-  - --label=org.opencontainers.image.documentation={{ .ProjectName }}
-  - --label=org.opencontainers.image.revision={{ .FullCommit }}
-  - --label=org.opencontainers.image.source={{ .GitURL }}
-  - --label=org.opencontainers.image.title={{ .ProjectName }}
-  - --label=org.opencontainers.image.url=https://git.cryptic.systems/volker.raschek/{{ .ProjectName }}
-  - --label=org.opencontainers.image.version={{ trimprefix .Tag "v" }}
-  - --platform=linux/riscv64
-  - --pull
-  dockerfile: Dockerfile
-  goarch: riscv64
-  goos: linux
-  image_templates:
-  - 'git.cryptic.systems/volker.raschek/{{ .ProjectName }}:{{ trimprefix .Tag "v" }}-riscv64'
-  skip_push: false
-  use: buildx
-
-docker_manifests:
- name_template: 'git.cryptic.systems/volker.raschek/{{ .ProjectName }}:{{ trimprefix .Tag "v" }}'
-  image_templates:
-  - 'git.cryptic.systems/volker.raschek/{{ .ProjectName }}:{{ trimprefix .Tag "v" }}-amd64'
-  - 'git.cryptic.systems/volker.raschek/{{ .ProjectName }}:{{ trimprefix .Tag "v" }}-arm-v6'
-  - 'git.cryptic.systems/volker.raschek/{{ .ProjectName }}:{{ trimprefix .Tag "v" }}-arm-v7'
-  - 'git.cryptic.systems/volker.raschek/{{ .ProjectName }}:{{ trimprefix .Tag "v" }}-arm64'
-  - 'git.cryptic.systems/volker.raschek/{{ .ProjectName }}:{{ trimprefix .Tag "v" }}-riscv64'
-
-gitea_urls:
-  api: https://git.cryptic.systems/api/v1
-  download: https://git.cryptic.systems
-
-version: 2
@@ -0,0 +1,31 @@
+# This is an example goreleaser.yaml file with some sane defaults.
+# Make sure to check the documentation at http://goreleaser.com
+before:
+  hooks:
+    - make install-deps
+builds:
+  -
+    dir: src
+    goos:
+      - linux
+      - windows
+      - darwin
+    goarch:
+      - amd64
+      - "386"
+      - arm
+      - arm64
+    goarm:
+      - "6"
+      - "7"
+
+archives:
+  -
+    files:
+    - LICENSE
+    - README.md
+    - CHANGELOG.md
+checksum:
+  name_template: 'checksums.txt'
+changelog:
+  skip: true
@@ -1,136 +0,0 @@
-# markdownlint YAML configuration
-# https://github.com/DavidAnson/markdownlint/blob/main/schema/.markdownlint.yaml
-
-# Default state for all rules
-default: true
-
-# Path to configuration file to extend
-extends: null
-
-# MD003/heading-style/header-style - Heading style
-MD003:
-  # Heading style
-  style: "atx"
-
-# MD004/ul-style - Unordered list style
-MD004:
-  style: "dash"
-
-# MD007/ul-indent - Unordered list indentation
-MD007:
-  # Spaces for indent
-  indent: 2
-  # Whether to indent the first level of the list
-  start_indented: false
-
-# MD009/no-trailing-spaces - Trailing spaces
-MD009:
-  # Spaces for line break
-  br_spaces: 2
-  # Allow spaces for empty lines in list items
-  list_item_empty_lines: false
-  # Include unnecessary breaks
-  strict: false
-
-# MD010/no-hard-tabs - Hard tabs
-MD010:
-  # Include code blocks
-  code_blocks: true
-
-# MD012/no-multiple-blanks - Multiple consecutive blank lines
-MD012:
-  # Consecutive blank lines
-  maximum: 1
-
-# MD013/line-length - Line length
-MD013:
-  # Number of characters
-  line_length: 120
-  # Number of characters for headings
-  heading_line_length: 120
-  # Number of characters for code blocks
-  code_block_line_length: 120
-  # Include code blocks
-  code_blocks: false
-  # Include tables
-  tables: false
-  # Include headings
-  headings: true
-  # Strict length checking
-  strict: false
-  # Stern length checking
-  stern: false
-
-# MD022/blanks-around-headings/blanks-around-headers - Headings should be surrounded by blank lines
-MD022:
-  # Blank lines above heading
-  lines_above: 1
-  # Blank lines below heading
-  lines_below: 1
-
-# MD025/single-title/single-h1 - Multiple top-level headings in the same document
-MD025:
-  # Heading level
-  level: 1
-  # RegExp for matching title in front matter
-  front_matter_title: "^\\s*title\\s*[:=]"
-
-# MD026/no-trailing-punctuation - Trailing punctuation in heading
-MD026:
-  # Punctuation characters
-  punctuation: ".,;:!。，；：！"
-
-# MD029/ol-prefix - Ordered list item prefix
-MD029:
-  # List style
-  style: "one_or_ordered"
-
-# MD030/list-marker-space - Spaces after list markers
-MD030:
-  # Spaces for single-line unordered list items
-  ul_single: 1
-  # Spaces for single-line ordered list items
-  ol_single: 1
-  # Spaces for multi-line unordered list items
-  ul_multi: 1
-  # Spaces for multi-line ordered list items
-  ol_multi: 1
-
-# MD033/no-inline-html - Inline HTML
-MD033:
-  # Allowed elements
-  allowed_elements: []
-
-# MD035/hr-style - Horizontal rule style
-MD035:
-  # Horizontal rule style
-  style: "---"
-
-# MD036/no-emphasis-as-heading/no-emphasis-as-header - Emphasis used instead of a heading
-MD036:
-  # Punctuation characters
-  punctuation: ".,;:!?。，；：！？"
-
-# MD041/first-line-heading/first-line-h1 - First line in a file should be a top-level heading
-MD041:
-  # Heading level
-  level: 1
-  # RegExp for matching title in front matter
-  front_matter_title: "^\\s*title\\s*[:=]"
-
-# MD044/proper-names - Proper names should have the correct capitalization
-MD044:
-  # List of proper names
-  names: []
-  # Include code blocks
-  code_blocks: false
-
-# MD046/code-block-style - Code block style
-MD046:
-  # Block style
-  style: "fenced"
-
-# MD048/code-fence-style - Code fence style
-MD048:
-  # Code fence syle
-  style: "backtick"
@@ -0,0 +1,30 @@
+# CHANGELOG
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog], and this project adheres to [Semantic Versioning].
+
+## [Unreleased]## [0.1.0] - 2021-03-28
+
+### Added
+- (6355c9e) feat: fail on startup if database file does not exist ([#8](https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/issues/8))
+- (4f18bf3) feat: add cli parameters for db path and metrics port ([#4](https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/issues/4))
+- (91cba80) feat: export number of banned ips
+- (4b96501) feat: export bad ip count per jail
+- (0b40e5d) feat: connect to fail2ban db and extract total bad ips
+- (7ced846) feat: initial setup of metric exporter
+
+
+### Fixed
+- (0842419) fix: compile tool without cgo_enabled flag
+
+
+---
+
+*This changelog is automatically generated by [git-chglog]*
+
+[Keep a Changelog]: https://keepachangelog.com/en/1.0.0/
+[Semantic Versioning]: https://semver.org/spec/v2.0.0.html
+[git-chglog]: https://github.com/git-chglog/git-chglog
+[Unreleased]: https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/compare/0.1.0...main
+[0.1.0]: https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/compare/0.0.0...0.1.0
@@ -1,5 +1,26 @@
-FROM scratch AS build
+# Using golang:latest instead of alpine because of issues with sqlite3
+FROM golang:latest AS build

-COPY prometheus-fail2ban-exporter-* /usr/bin/prometheus-fail2ban-exporter
+# Create build folder to compile tool
+WORKDIR /build

-ENTRYPOINT [ "/usr/bin/prometheus-fail2ban-exporter" ]
+# Copy source files to build folder and link to the /go folder
+COPY . /build
+RUN ln -s /go/src/ /build/src
+
+# Compile the tool using a Make command
+RUN make build/docker
+
+
+FROM debian:buster-slim
+
+# Create main app folder to run from
+WORKDIR /app
+
+# Copy compiled binary to release image
+COPY --from=build /build/src/exporter /app/fail2ban-prometheus-exporter
+
+# Copy init script into main app folder and set as entry point
+COPY docker/run.sh /app/
+RUN chmod +x /app/*
+ENTRYPOINT /app/run.sh
@@ -1,7 +1,6 @@
 MIT License

 Copyright (c) 2021 Hector
-Copyright (c) 2023 Markus Pesch

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -1,118 +1,34 @@
-EXECUTABLE=prometheus-fail2ban-exporter
-VERSION?=$(shell git describe --abbrev=0)+hash.$(shell git rev-parse --short HEAD)
+install-deps:
+	cd src/ && go mod download

-# Destination directory and prefix to place the compiled binaries, documentaions
-# and other files.
-DESTDIR?=
-PREFIX?=/usr/local
+# Standard go test
+test:
+	cd src/ && go test ./... -v -race

-# CONTAINER_RUNTIME
-# The CONTAINER_RUNTIME variable will be used to specified the path to a
-# container runtime. This is needed to start and run a container image.
-CONTAINER_RUNTIME?=$(shell which podman)
+# Make sure no unnecessary dependencies are present
+go-mod-tidy:
+	cd src/ && go mod tidy -v
+	git diff-index --quiet HEAD

-# PROM_FAIL2BAN_EXP_IMAGE_REGISTRY_NAME
-# Defines the name of the new container to be built using several variables.
-PROM_FAIL2BAN_EXP_IMAGE_REGISTRY_NAME:=git.cryptic.systems
-PROM_FAIL2BAN_EXP_IMAGE_REGISTRY_USER:=volker.raschek
+format:
+	cd src/ && go fmt $(go list ./... | grep -v /vendor/)
+	cd src/ && go vet $(go list ./... | grep -v /vendor/)

-PROM_FAIL2BAN_EXP_IMAGE_NAMESPACE?=${PROM_FAIL2BAN_EXP_IMAGE_REGISTRY_USER}
-PROM_FAIL2BAN_EXP_IMAGE_NAME:=${EXECUTABLE}
-PROM_FAIL2BAN_EXP_IMAGE_VERSION?=latest
-PROM_FAIL2BAN_EXP_IMAGE_FULLY_QUALIFIED=${PROM_FAIL2BAN_EXP_IMAGE_REGISTRY_NAME}/${PROM_FAIL2BAN_EXP_IMAGE_NAMESPACE}/${PROM_FAIL2BAN_EXP_IMAGE_NAME}:${PROM_FAIL2BAN_EXP_IMAGE_VERSION}
+generateChangelog:
+	./tools/git-chglog_linux_amd64 --config tools/chglog/config.yml 0.0.0.. > CHANGELOG.md

-# BIN
-# ==============================================================================
-prometheus-fail2ban-exporter:
-	CGO_ENABLED=0 \
-	GOPROXY=$(shell go env GOPROXY) \
-		go build -ldflags "-X 'main.version=${VERSION}' -X 'main.date=$(shell date --rfc-3339=seconds )'" -o ${@} main.go
+build/snapshot:
+	./tools/goreleaser_linux_amd64 --snapshot --rm-dist --skip-publish

-# CLEAN
-# ==============================================================================
-PHONY+=clean
-clean:
-	rm --force --recursive prometheus-fail2ban-exporter
+build/release:
+	./tools/goreleaser_linux_amd64 --rm-dist --skip-publish

-# TESTS
-# ==============================================================================
-PHONY+=test/unit
-test/unit:
-	CGO_ENABLED=0 \
-	GOPROXY=$(shell go env GOPROXY) \
-		go test -v -p 1 -coverprofile=coverage.out -covermode=count -timeout 1200s ./...
+build/docker:
+	cd src/ && go build -o exporter \
+     -ldflags '-X main.version=$(shell git describe --tags) -X main.commit=${shell git rev-parse HEAD} -X "main.date=${shell date --rfc-3339=seconds}" -X main.builtBy=docker' exporter.go

-PHONY+=test/integration
-test/integration:
-	CGO_ENABLED=0 \
-	GOPROXY=$(shell go env GOPROXY) \
-		go test -v -p 1 -count=1 -timeout 1200s ./it/...
+docker/build-latest:
+	docker build -t registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:latest .

-PHONY+=test/coverage
-test/coverage:
-	CGO_ENABLED=0 \
-	GOPROXY=$(shell go env GOPROXY) \
-		go tool cover -func=coverage.out
-
-# GOLANGCI-LINT
-# ==============================================================================
-PHONY+=golangci-lint
-golangci-lint:
-	golangci-lint run --concurrency=$(shell nproc)
-
-# INSTALL
-# ==============================================================================
-PHONY+=uninstall
-install: prometheus-fail2ban-exporter
-	install --directory ${DESTDIR}/etc/bash_completion.d
-	./prometheus-fail2ban-exporter completion bash > ${DESTDIR}/etc/bash_completion.d/${EXECUTABLE}
-
-	install --directory ${DESTDIR}${PREFIX}/bin
-	install --mode 0755 ${EXECUTABLE} ${DESTDIR}${PREFIX}/bin/${EXECUTABLE}
-
-	install --directory ${DESTDIR}${PREFIX}/share/licenses/${EXECUTABLE}
-	install --mode 0644 LICENSE ${DESTDIR}${PREFIX}/share/licenses/${EXECUTABLE}/LICENSE
-
-	install --directory ${DESTDIR}${PREFIX}/systemd/system
-	install --mode 0644 systemd/systemd.service ${DESTDIR}${PREFIX}/systemd/system/${EXECUTABLE}.service
-	sed --in-place --regexp-extended 's/EXECUTABLE/${EXECUTABLE}/gm' ${DESTDIR}${PREFIX}/systemd/system/${EXECUTABLE}.service
-
-# UNINSTALL
-# ==============================================================================
-PHONY+=uninstall
-uninstall:
-	-rm --force --recursive \
-		${DESTDIR}/etc/bash_completion.d/${EXECUTABLE} \
-		${DESTDIR}${PREFIX}/bin/${EXECUTABLE} \
-		${DESTDIR}${PREFIX}/share/licenses/${EXECUTABLE}
-
-# BUILD CONTAINER IMAGE
-# ==============================================================================
-PHONY+=container-image/build
-container-image/build:
-	${CONTAINER_RUNTIME} build \
-		--build-arg VERSION=${VERSION} \
-		--file Dockerfile \
-		--no-cache \
-		--pull \
-		--tag ${PROM_FAIL2BAN_EXP_IMAGE_FULLY_QUALIFIED} \
-		.
-
-# DELETE CONTAINER IMAGE
-# ==============================================================================
-PHONY:=container-image/delete
-container-image/delete:
-	- ${CONTAINER_RUNTIME} image rm ${PROM_FAIL2BAN_EXP_IMAGE_FULLY_QUALIFIED}
-
-# PUSH CONTAINER IMAGE
-# ==============================================================================
-PHONY+=container-image/push
-container-image/push:
-	echo ${PROM_FAIL2BAN_EXP_IMAGE_REGISTRY_PASSWORD} | ${CONTAINER_RUNTIME} login ${PROM_FAIL2BAN_EXP_IMAGE_REGISTRY_NAME} --username ${PROM_FAIL2BAN_EXP_IMAGE_REGISTRY_USER} --password-stdin
-	${CONTAINER_RUNTIME} push ${PROM_FAIL2BAN_EXP_IMAGE_FULLY_QUALIFIED}
-
-# PHONY
-# ==============================================================================
-# Declare the contents of the PHONY variable as phony.  We keep that information
-# in a variable so we can use it in if_changed.
-.PHONY: ${PHONY}
+docker/build-tag:
+	docker build -t registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:$(shell git describe --tags) .
@@ -1,214 +1,123 @@
-# prometheus-fail2ban-exporter
+# Fail2Ban Prometheus Exporter

-This is a fork of Hector's fail2ban [exporter](https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter). This fork
-contains some changes to get the application running in a kubernetes cluster.
+Go tool to collect and export metrics on Fail2Ban

 ## Table of Contents
+1. How to use
+2. Docker
+    1. Volumes
+    2. Docker run
+    3. Docker compose
+3. CLI usage
+4. Metrics

-1. Quick Start
-2. Metrics
-3. Configuration
-4. Building from source
-5. Textfile metrics
+## 1. How to use

-## 1. Quick Start
+Run the exporter by providing it with a fail2ban database to read data from.
+Read access to the database is required.
+Once the exporter is running, metrics are available at `localhost:9191/metrics`.

-The exporter can be run as a standalone binary or a docker container.
+The default port is `9191`, but this can be modified with the `-port` flag.

-### 1.1. Standalone
+**Note:** By default fail2ban stores the database file at: `/var/lib/fail2ban/fail2ban.sqlite3`

-The following command will start collecting metrics from the `/var/run/fail2ban/fail2ban.sock` file and expose them on
-port `9191`.
+**Fail2Ban Jails**

-```bash
-$ fail2ban_exporter --collector.f2b.socket=/var/run/fail2ban/fail2ban.sock --web.listen-address=":9191"
+fail2ban can be configured to process different log files and use different rules for each one.
+These separate configurations are referred to as *jails*.
+
+For example, fail2ban can be configured to watch the system logs for failed SSH connections and Nextcloud logs for failed logins.
+In this configuration, there will be two jails - one for IPs banned from the SSH logs, and one for IPs banned from the Nextcloud logs.
+
+This tool exports several metrics *per jail*, meaning that it is possible to track how many IPs are being banned in each jail as well as the overall total.
+This can be useful to track what services are seeing more failed logins.
+
+## 2. Docker
+
+An official docker image is available on the Gitlab container registry.
+Use it by pulling the following image:

-2022/02/20 09:54:06 fail2ban exporter version 0.8.1
-2022/02/20 09:54:06 starting server at :9191
-2022/02/20 09:54:06 reading metrics from fail2ban socket: /var/run/fail2ban/fail2ban.sock
-2022/02/20 09:54:06 metrics available at '/metrics'
-2022/02/20 09:54:06 ready
 ```
-
-Binary files for each release can be found on the
-[releases](https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/-/releases) page.
-
-There is also an [example systemd service file](/_examples/systemd/fail2ban_exporter.service) included in the
-repository. This is a starting point to run the exporter as a service.
-
-### 1.2. Docker
-
-#### Docker run
-
-```bash
-$ docker run -d \
-    --name "fail2ban-exporter" \
-    -v /var/run/fail2ban:/var/run/fail2ban:ro \
-    -p "9191:9191" \
 registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:latest
 ```

-#### Docker compose
+Use the `:latest` tag to get the most up to date code (less stable) or use one of the version tagged images to use a specific release.
+See the [registry page](https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/container_registry) for all available tags.

-```yaml
+### 2.1. Volumes
+
+The docker image is designed to run by mounting the fail2ban sqlite3 database.
+The database should be mounted at: `/app/fail2ban.sqlite3`
+
+The database can be mounted with read-only permissions.
+
+### 2.2. Docker run
+
+Use the following command to run the forwarder as a docker container.
+
+```
+docker run -d \
+    --name "fail2ban-exporter" \
+    -v /var/lib/fail2ban/fail2ban.sqlite3:/app/fail2ban.sqlite3:ro \
+    -p "9191:9191"
+    registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:latest
+```
+
+### 2.3. Docker compose
+
+The following is a simple docker-compose file to run the exporter.
+
+```
 version: "2"
 services:
  exporter:
    image: registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:latest
    volumes:
-    - /var/run/fail2ban/:/var/run/fail2ban:ro
+    - /var/lib/fail2ban/fail2ban.sqlite3:/app/fail2ban.sqlite3:ro
    ports:
    - "9191:9191"
 ```

-Use the `:latest` tag to get the latest stable release. See the [registry
-page](https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/container_registry) for all available tags.
+## 3. CLI usage

-**NOTE:** While it is possible to mount the `fail2ban.sock` file directly, it is recommended to mount the parent folder
-instead. The `.sock` file is deleted by fail2ban on shutdown and re-created on startup and this causes problems for the
-docker mount. See [this reply](https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/-/issues/11#note_665003499)
-for more details.
+```
+$ fail2ban-prometheus-exporter -h

-## 2. Metrics
-
-The exporter exposes the following metrics:
-
-*All metric names are prefixed with `f2b_`*
-
-| Metric                       | Description                                                                        | Example                                             |
-|------------------------------|------------------------------------------------------------------------------------|-----------------------------------------------------|
-| `up`                         | Returns 1 if the exporter is up and running                                        | `f2b_up 1`                                          |
-| `errors`                     | Count the number of errors since startup by type                                   |                                                     |
-| `errors{type="socket_conn"}` | Errors connecting to the fail2ban socket (e.g. connection refused)                 | `f2b_errors{type="socket_conn"} 0`                  |
-| `errors{type="socket_req"}`  | Errors sending requests to the fail2ban server (e.g. invalid responses)            | `f2b_errors{type="socket_req"} 0`                   |
-| `jail_count`                 | Number of jails configured in fail2ban                                             | `f2b_jail_count 2`                                  |
-| `jail_banned_current`        | Number of IPs currently banned per jail                                            | `f2b_jail_banned_current{jail="sshd"} 15`           |
-| `jail_banned_total`          | Total number of banned IPs since fail2ban startup per jail (includes expired bans) | `f2b_jail_banned_total{jail="sshd"} 31`             |
-| `jail_failed_current`        | Number of current failures per jail                                                | `f2b_jail_failed_current{jail="sshd"} 6`            |
-| `jail_failed_total`          | Total number of failures since fail2ban startup per jail                           | `f2b_jail_failed_total{jail="sshd"} 125`            |
-| `jail_config_ban_time`       | How long an IP is banned for in this jail (in seconds)                             | `f2b_config_jail_ban_time{jail="sshd"} 600`         |
-| `jail_config_find_time`      | How far back the filter will look for failures in this jail (in seconds)           | `f2b_config_jail_find_time{jail="sshd"} 600`        |
-| `jail_config_max_retry`      | The max number of failures allowed before banning an IP in this jail               | `f2b_config_jail_max_retries{jail="sshd"} 5`        |
-| `version`                    | Version string of the exporter and fail2ban                                        | `f2b_version{exporter="0.5.0",fail2ban="0.11.1"} 1` |
-
-The metrics above correspond to the matching fields in the `fail2ban-client
-status <jail>` command:
-
-```text
-Status for the jail: sshd
-|- Filter
-|  |- Currently failed: 6
-|  |- Total failed:     125
-|  `- File list:        /var/log/auth.log
-`- Actions
-   |- Currently banned: 15
-   |- Total banned:     31
-   `- Banned IP list:   ...
+  -db string
+        path to the fail2ban sqlite database
+  -port int
+        port to use for the metrics server (default 9191)
+  -version
+        show version info and exit
 ```

-### 2.1. Grafana
+## 4. Metrics

-The metrics exported by this tool are compatible with Prometheus and Grafana. A sample grafana dashboard can be found in
-the [grafana.json](/_examples/grafana/dashboard.json) file. Just import the contents of this file into a new Grafana
-dashboard to get started.
+Access exported metrics at `/metrics` (on the provided port).

-The dashboard supports displaying data from multiple exporters. Use the `instance` dashboard variable to select which
-ones to display.
+**Note:** All metric names include the `fail2ban_` prefix to make sure they are unique and easier to find.

-*(Sample dashboard is compatible with Grafana `9.1.8` and above)*
+Exposed metrics:
+* `up` - Returns 1 if the service is up
+* `bad_ips` (per jail)
+    * A *bad IP* is defined as an IP that has been banned at least once in the past
+    * Bad IPs are counted per jail
+* `banned_ips` (per jail)
+    * A *banned IP* is defined as an IP that is currently banned on the firewall
+    * Banned IPs are counted per jail

-## 3. Configuration
+**Sample**

-The exporter is configured with CLI flags and environment variables. There are no configuration files.
-
-### CLI flags
-
-```text
-🚀 Collect prometheus metrics from a running Fail2Ban instance
-
-Flags:
-  -h, --help                          Show context-sensitive help.
-  -v, --version                       Show version info and exit
-      --dry-run                       Attempt to connect to the fail2ban socket then exit
-                                      before starting the server
-      --web.listen-address=":9191"    Address to use for the metrics server
-                                      ($F2B_WEB_LISTEN_ADDRESS)
-      --collector.f2b.socket="/var/run/fail2ban/fail2ban.sock"
-                                      Path to the fail2ban server socket
-                                      ($F2B_COLLECTOR_SOCKET)
-      --collector.f2b.exit-on-socket-connection-error
-                                      When set to true the exporter will immediately
-                                      exit on a fail2ban socket connection error
-                                      ($F2B_EXIT_ON_SOCKET_CONN_ERROR)
-      --collector.textfile.directory=STRING
-                                      Directory to read text files with metrics from
-                                      ($F2B_COLLECTOR_TEXT_PATH)
-      --web.basic-auth.username=STRING
-                                      Username to use to protect endpoints with basic auth
-                                      ($F2B_WEB_BASICAUTH_USER)
-      --web.basic-auth.password=STRING
-                                      Password to use to protect endpoints with basic auth
-                                      ($F2B_WEB_BASICAUTH_PASS)
 ```
-
-### Environment variables
-
-Each environment variable corresponds to a CLI flag. If both are specified, the CLI flag takes precedence.
-
-| Environment variable            | Corresponding CLI flag                            |
-|---------------------------------|---------------------------------------------------|
-| `F2B_COLLECTOR_SOCKET`          | `--collector.f2b.socket`                          |
-| `F2B_COLLECTOR_TEXT_PATH`       | `--collector.textfile.directory`                  |
-| `F2B_WEB_LISTEN_ADDRESS`        | `--web.listen-address`                            |
-| `F2B_WEB_BASICAUTH_USER`        | `--web.basic-auth.username`                       |
-| `F2B_WEB_BASICAUTH_PASS`        | `--web.basic-auth.password`                       |
-| `F2B_EXIT_ON_SOCKET_CONN_ERROR` | `--collector.f2b.exit-on-socket-connection-error` |
-
-## 4. Building from source
-
-Building from source has the following dependencies:
-
- Go v1.20
- Make
-
-From there, simply run `make build`
-
-This will download the necessary dependencies and build a `fail2ban_exporter` binary in the root of the project.
-
-## 5. Textfile metrics
-
-For more flexibility the exporter also allows exporting metrics collected from a text file.
-
-To enable textfile metrics provide the directory to read files from with the `--collector.textfile.directory` flag.
-
-Metrics collected from these files will be exposed directly alongside the other metrics without any additional
-processing. This means that it is the responsibility of the file creator to ensure the format is correct.
-
-By exporting textfile metrics an extra metric is also exported with an error count for each file:
-
-```text
-# HELP textfile_error Checks for errors while reading text files
-# TYPE textfile_error gauge
-textfile_error{path="file.prom"} 0
-```
-
-**NOTE:** Any file not ending with `.prom` will be ignored.
-
-### Running in Docker
-
-To collect textfile metrics inside a docker container, a couple of things need to be done:
-
-1. Mount the folder with the metrics files
-2. Set the `F2B_COLLECTOR_TEXT_PATH` environment variable
-
-*For example:*
-
-```bash
-$ docker run -d \
-    --name "fail2ban-exporter" \
-    -v /var/run/fail2ban:/var/run/fail2ban:ro \
-    -v /path/to/metrics:/app/metrics/:ro \
-    -e F2B_COLLECTOR_TEXT_PATH=/app/metrics \
-    -p "9191:9191" \
-    registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:latest
+# HELP fail2ban_bad_ips Number of bad IPs stored in the database (per jail).
+# TYPE fail2ban_bad_ips gauge
+fail2ban_bad_ips{jail="jail1"} 6
+fail2ban_bad_ips{jail="jail2"} 8
+# HELP fail2ban_banned_ips Number of banned IPs stored in the database (per jail).
+# TYPE fail2ban_banned_ips gauge
+fail2ban_banned_ips{jail="jail1"} 3
+fail2ban_banned_ips{jail="jail2"} 2
+# HELP fail2ban_up Was the last fail2ban query successful.
+# TYPE fail2ban_up gauge
+fail2ban_up 1
 ```
@@ -1,877 +0,0 @@
-{
-  "__inputs": [
-    {
-      "name": "DS_PROMETHEUS",
-      "label": "Prometheus",
-      "description": "",
-      "type": "datasource",
-      "pluginId": "prometheus",
-      "pluginName": "Prometheus"
-    }
-  ],
-  "__elements": {},
-  "__requires": [
-    {
-      "type": "grafana",
-      "id": "grafana",
-      "name": "Grafana",
-      "version": "9.1.8"
-    },
-    {
-      "type": "datasource",
-      "id": "prometheus",
-      "name": "Prometheus",
-      "version": "1.0.0"
-    },
-    {
-      "type": "panel",
-      "id": "table",
-      "name": "Table",
-      "version": ""
-    },
-    {
-      "type": "panel",
-      "id": "timeseries",
-      "name": "Time series",
-      "version": ""
-    }
-  ],
-  "annotations": {
-    "list": [
-      {
-        "builtIn": 1,
-        "datasource": {
-          "type": "datasource",
-          "uid": "grafana"
-        },
-        "enable": true,
-        "hide": true,
-        "iconColor": "rgba(0, 211, 255, 1)",
-        "name": "Annotations & Alerts",
-        "target": {
-          "limit": 100,
-          "matchAny": false,
-          "tags": [],
-          "type": "dashboard"
-        },
-        "type": "dashboard"
-      }
-    ]
-  },
-  "editable": true,
-  "fiscalYearStartMonth": 0,
-  "graphTooltip": 2,
-  "id": null,
-  "links": [],
-  "liveNow": false,
-  "panels": [
-    {
-      "datasource": {
-        "type": "prometheus",
-        "uid": "prometheus"
-      },
-      "description": "",
-      "fieldConfig": {
-        "defaults": {
-          "color": {
-            "mode": "thresholds"
-          },
-          "custom": {
-            "align": "auto",
-            "displayMode": "auto",
-            "inspect": false
-          },
-          "mappings": [],
-          "thresholds": {
-            "mode": "absolute",
-            "steps": [
-              {
-                "color": "green",
-                "value": null
-              }
-            ]
-          }
-        },
-        "overrides": [
-          {
-            "matcher": {
-              "id": "byRegexp",
-              "options": ".*Time"
-            },
-            "properties": [
-              {
-                "id": "unit",
-                "value": "s"
-              }
-            ]
-          }
-        ]
-      },
-      "gridPos": {
-        "h": 6,
-        "w": 24,
-        "x": 0,
-        "y": 0
-      },
-      "id": 206,
-      "options": {
-        "footer": {
-          "fields": "",
-          "reducer": [
-            "sum"
-          ],
-          "show": false
-        },
-        "showHeader": true
-      },
-      "pluginVersion": "9.1.8",
-      "targets": [
-        {
-          "datasource": {
-            "type": "prometheus",
-            "uid": "prometheus"
-          },
-          "editorMode": "code",
-          "exemplar": false,
-          "expr": "f2b_config_jail_max_retries{instance=~\"$instance\"}",
-          "format": "table",
-          "instant": true,
-          "interval": "",
-          "legendFormat": "{{jail}}",
-          "refId": "A"
-        },
-        {
-          "datasource": {
-            "type": "prometheus",
-            "uid": "prometheus"
-          },
-          "editorMode": "code",
-          "exemplar": false,
-          "expr": "f2b_config_jail_ban_time{instance=~\"$instance\"}",
-          "format": "table",
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-          "id": "organize",
-          "options": {
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-            "indexByName": {},
-            "renameByName": {
-              "Value #A (lastNotNull)": "Max Retries",
-              "Value #B (lastNotNull)": "Ban Time",
-              "Value #C (lastNotNull)": "Find Time",
-              "jail": "Jail"
-            }
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-          },
-          "unit": "short"
-        },
-        "overrides": []
-      },
-      "gridPos": {
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-        "w": 12,
-        "x": 0,
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-            "lastNotNull"
-          ],
-          "displayMode": "table",
-          "placement": "right",
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-          "hide": false,
-          "interval": "",
-          "legendFormat": "{{jail}} ({{instance}})",
-          "range": true,
-          "refId": "A"
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-      ],
-      "title": "Fail2Ban Failures (Total)",
-      "transparent": true,
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-        "x": 12,
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-      "options": {
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-          "exemplar": true,
-          "expr": "f2b_jail_banned_total{instance=~\"$instance\"}",
-          "interval": "",
-          "legendFormat": "{{jail}} ({{instance}})",
-          "range": true,
-          "refId": "A"
-        }
-      ],
-      "title": "Fail2Ban Bans (Total)",
-      "transparent": true,
-      "type": "timeseries"
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-            "thresholdsStyle": {
-              "mode": "off"
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-          "mappings": [],
-          "min": 0,
-          "thresholds": {
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-                "value": null
-              }
-            ]
-          },
-          "unit": "short"
-        },
-        "overrides": []
-      },
-      "gridPos": {
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-        "w": 12,
-        "x": 0,
-        "y": 14
-      },
-      "id": 208,
-      "options": {
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-          "calcs": [
-            "lastNotNull"
-          ],
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-          "interval": "",
-          "legendFormat": "{{jail}} ({{instance}})",
-          "range": true,
-          "refId": "A"
-        }
-      ],
-      "title": "Fail2Ban Failures (Current)",
-      "transparent": true,
-      "type": "timeseries"
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-        "uid": "prometheus"
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-        },
-        "overrides": []
-      },
-      "gridPos": {
-        "h": 8,
-        "w": 12,
-        "x": 12,
-        "y": 14
-      },
-      "id": 209,
-      "options": {
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-          "calcs": [
-            "lastNotNull"
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-          "exemplar": true,
-          "expr": "f2b_jail_banned_current{instance=~\"$instance\"}",
-          "interval": "",
-          "legendFormat": "{{jail}} ({{instance}})",
-          "range": true,
-          "refId": "A"
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-              "type": "linear"
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-              "mode": "none"
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-            "thresholdsStyle": {
-              "mode": "off"
-            }
-          },
-          "mappings": [],
-          "max": 1,
-          "min": 0,
-          "thresholds": {
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-                "color": "green",
-                "value": null
-              }
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-          "unit": "short"
-        },
-        "overrides": []
-      },
-      "gridPos": {
-        "h": 5,
-        "w": 12,
-        "x": 0,
-        "y": 22
-      },
-      "id": 203,
-      "options": {
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-          "calcs": [
-            "lastNotNull"
-          ],
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-          "placement": "right",
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-      "targets": [
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-            "uid": "prometheus"
-          },
-          "editorMode": "code",
-          "exemplar": true,
-          "expr": "f2b_up{instance=~\"$instance\"}",
-          "interval": "",
-          "legendFormat": "Up ({{instance}})",
-          "range": true,
-          "refId": "A"
-        }
-      ],
-      "title": "Fail2Ban Up",
-      "transparent": true,
-      "type": "timeseries"
-    },
-    {
-      "datasource": {
-        "type": "prometheus",
-        "uid": "prometheus"
-      },
-      "description": "",
-      "fieldConfig": {
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-          },
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-            "axisColorMode": "text",
-            "axisLabel": "",
-            "axisPlacement": "auto",
-            "barAlignment": 0,
-            "drawStyle": "line",
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-            "gradientMode": "none",
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-              "tooltip": false,
-              "viz": false
-            },
-            "lineInterpolation": "linear",
-            "lineWidth": 1,
-            "pointSize": 5,
-            "scaleDistribution": {
-              "type": "linear"
-            },
-            "showPoints": "never",
-            "spanNulls": true,
-            "stacking": {
-              "group": "A",
-              "mode": "none"
-            },
-            "thresholdsStyle": {
-              "mode": "off"
-            }
-          },
-          "mappings": [],
-          "max": 1,
-          "min": 0,
-          "thresholds": {
-            "mode": "absolute",
-            "steps": [
-              {
-                "color": "green",
-                "value": null
-              }
-            ]
-          },
-          "unit": "short"
-        },
-        "overrides": []
-      },
-      "gridPos": {
-        "h": 5,
-        "w": 12,
-        "x": 12,
-        "y": 22
-      },
-      "id": 204,
-      "options": {
-        "legend": {
-          "calcs": [
-            "lastNotNull"
-          ],
-          "displayMode": "table",
-          "placement": "right",
-          "showLegend": true
-        },
-        "tooltip": {
-          "mode": "single",
-          "sort": "none"
-        }
-      },
-      "pluginVersion": "8.2.1",
-      "targets": [
-        {
-          "datasource": {
-            "type": "prometheus",
-            "uid": "prometheus"
-          },
-          "editorMode": "code",
-          "exemplar": true,
-          "expr": "f2b_errors{instance=~\"$instance\"}",
-          "interval": "",
-          "legendFormat": "{{type}} ({{instance}})",
-          "range": true,
-          "refId": "A"
-        }
-      ],
-      "title": "Fail2Ban Exporter Errors",
-      "transparent": true,
-      "type": "timeseries"
-    }
-  ],
-  "refresh": "30s",
-  "schemaVersion": 37,
-  "style": "dark",
-  "tags": [],
-  "templating": {
-    "list": [
-      {
-        "current": {
-          "selected": false,
-          "text": "Prometheus",
-          "value": "Prometheus"
-        },
-        "hide": 0,
-        "includeAll": false,
-        "label": "Data Source",
-        "multi": false,
-        "name": "DataSource",
-        "options": [],
-        "query": "prometheus",
-        "queryValue": "",
-        "refresh": 1,
-        "regex": "",
-        "skipUrlSync": false,
-        "type": "datasource"
-      },
-      {
-        "current": {},
-        "datasource": {
-          "type": "prometheus",
-          "uid": "prometheus"
-        },
-        "definition": "f2b_up",
-        "description": "Select which instance(s) to show",
-        "hide": 0,
-        "includeAll": false,
-        "label": "Instance",
-        "multi": true,
-        "name": "instance",
-        "options": [],
-        "query": {
-          "query": "f2b_up",
-          "refId": "StandardVariableQuery"
-        },
-        "refresh": 1,
-        "regex": "/.*instance=\"([^\"]+)\"/",
-        "skipUrlSync": false,
-        "sort": 0,
-        "type": "query"
-      }
-    ]
-  },
-  "time": {
-    "from": "now-6h",
-    "to": "now"
-  },
-  "timepicker": {},
-  "timezone": "",
-  "title": "F2B",
-  "uid": "cTkH9AT7z",
-  "version": 3,
-  "weekStart": ""
-}
@@ -1,9 +0,0 @@
-# Systemd
-
-The `.service` file in this directory should be copied to the `/etc/systemd/system/` folder.
-
- It expects the binary file to be installed at `/usr/sbin/fail2ban_exporter`.
- It expects a user named `fail2ban_exporter` to exist. This user should not have a shell or any special privileges
-  aside from read-access to the fail2ban socket file.
-
-The `ExecStart` line can be modified to add any custom CLI flags.
@@ -1,9 +0,0 @@
-[Unit]
-Description=Fail2Ban Exporter
-
-[Service]
-User=fail2ban_exporter
-ExecStart=/usr/sbin/fail2ban_exporter
-
-[Install]
-WantedBy=multi-user.target
@@ -1,29 +0,0 @@
-package auth
-
-import (
-	"fmt"
-	"net/http"
-)
-
-func NewBasicAuthProvider(username, password string) AuthProvider {
-	return &basicAuthProvider{
-		hashedAuth: encodeBasicAuth(username, password),
-	}
-}
-
-type basicAuthProvider struct {
-	hashedAuth string
-}
-
-func (p *basicAuthProvider) IsAllowed(request *http.Request) bool {
-	username, password, ok := request.BasicAuth()
-	if !ok {
-		return false
-	}
-	requestAuth := encodeBasicAuth(username, password)
-	return p.hashedAuth == requestAuth
-}
-
-func encodeBasicAuth(username, password string) string {
-	return HashString(fmt.Sprintf("%s:%s", username, password))
-}
@@ -1,53 +0,0 @@
-package auth
-
-import (
-	"net/http"
-	"net/http/httptest"
-	"testing"
-)
-
-func Test_GIVEN_BasicAuthSet_WHEN_CallingIsAllowedWithCorrectCreds_THEN_TrueReturned(t *testing.T) {
-	// assemble
-	username := "u1"
-	password := HashString("abc")
-	request := httptest.NewRequest(http.MethodGet, "http://example.com", nil)
-	request.SetBasicAuth(username, password)
-	provider := NewBasicAuthProvider(username, password)
-
-	// act
-	result := provider.IsAllowed(request)
-
-	// assert
-	if !result {
-		t.Errorf("expected request to be allowed, but failed")
-	}
-}
-
-func Test_GIVEN_BasicAuthSet_WHEN_CallingIsAllowedWithoutCreds_THEN_FalseReturned(t *testing.T) {
-	// assemble
-	request := httptest.NewRequest(http.MethodGet, "http://example.com", nil)
-	provider := NewBasicAuthProvider("u1", "p1")
-
-	// act
-	result := provider.IsAllowed(request)
-
-	// assert
-	if result {
-		t.Errorf("expected request to be denied, but was allowed")
-	}
-}
-
-func Test_GIVEN_BasicAuthSet_WHEN_CallingIsAllowedWithWrongCreds_THEN_FalseReturned(t *testing.T) {
-	// assemble
-	request := httptest.NewRequest(http.MethodGet, "http://example.com", nil)
-	request.SetBasicAuth("wrong", "pw")
-	provider := NewBasicAuthProvider("u1", "p1")
-
-	// act
-	result := provider.IsAllowed(request)
-
-	// assert
-	if result {
-		t.Errorf("expected request to be denied, but was allowed")
-	}
-}
@@ -1,14 +0,0 @@
-package auth
-
-import "net/http"
-
-func NewEmptyAuthProvider() AuthProvider {
-	return &emptyAuthProvider{}
-}
-
-type emptyAuthProvider struct {
-}
-
-func (p *emptyAuthProvider) IsAllowed(request *http.Request) bool {
-	return true
-}
@@ -1,36 +0,0 @@
-package auth
-
-import (
-	"net/http"
-	"net/http/httptest"
-	"testing"
-)
-
-func Test_GIVEN_EmptyAuth_WHEN_CallingIsAllowedWithoutAuth_THEN_TrueReturned(t *testing.T) {
-	// assemble
-	request := httptest.NewRequest(http.MethodGet, "http://example.com", nil)
-	provider := NewEmptyAuthProvider()
-
-	// act
-	response := provider.IsAllowed(request)
-
-	// assert
-	if !response {
-		t.Errorf("expected request to be allowed, but failed")
-	}
-}
-
-func Test_GIVEN_EmptyAuth_WHEN_CallingIsAllowedWithAuth_THEN_TrueReturned(t *testing.T) {
-	// assemble
-	request := httptest.NewRequest(http.MethodGet, "http://example.com", nil)
-	request.SetBasicAuth("user", "pass")
-	provider := NewEmptyAuthProvider()
-
-	// act
-	response := provider.IsAllowed(request)
-
-	// assert
-	if !response {
-		t.Errorf("expected request to be allowed, but failed")
-	}
-}
@@ -1,18 +0,0 @@
-package auth
-
-import (
-	"crypto/sha256"
-	"encoding/hex"
-)
-
-func hash(data []byte) []byte {
-	if len(data) == 0 {
-		return []byte{}
-	}
-	b := sha256.Sum256(data)
-	return b[:]
-}
-
-func HashString(data string) string {
-	return hex.EncodeToString(hash([]byte(data)))
-}
@@ -1,26 +0,0 @@
-package auth
-
-import (
-	"reflect"
-	"testing"
-)
-
-func TestHashString(t *testing.T) {
-	tests := []struct {
-		name string
-		args string
-		want string
-	}{
-		{"Happy path #1", "123", "a665a45920422f9d417e4867efdc4fb8a04a1f3fff1fa07e998e86f7f7a27ae3"},
-		{"Happy path #2", "hello world", "b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9"},
-		{"Happy path #3", "H3Ll0_W0RLD", "d58a27fe9a6e73a1d8a67189fb8acace047e7a1a795276a0056d3717ad61bd0e"},
-		{"Blank string", "", ""},
-	}
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			if got := HashString(tt.args); !reflect.DeepEqual(got, tt.want) {
-				t.Errorf("HashString() = %v, want %v", got, tt.want)
-			}
-		})
-	}
-}
@@ -1,9 +0,0 @@
-package auth
-
-import (
-	"net/http"
-)
-
-type AuthProvider interface {
-	IsAllowed(*http.Request) bool
-}
@@ -1,84 +0,0 @@
-package cfg
-
-import (
-	"fmt"
-	"log"
-	"os"
-
-	"git.cryptic.systems/volker.raschek/prometheus-fail2ban-exporter/auth"
-	"github.com/alecthomas/kong"
-)
-
-var cliStruct struct {
-	VersionMode          bool   `name:"version" short:"v" help:"Show version info and exit"`
-	DryRunMode           bool   `name:"dry-run" help:"Attempt to connect to the fail2ban socket then exit before starting the server"`
-	ServerAddress        string `name:"web.listen-address" env:"F2B_WEB_LISTEN_ADDRESS" help:"Address to use for the metrics server" default:"${default_address}"`
-	F2bSocketPath        string `name:"collector.f2b.socket" env:"F2B_COLLECTOR_SOCKET" help:"Path to the fail2ban server socket" default:"${default_socket}"`
-	ExitOnSocketError    bool   `name:"collector.f2b.exit-on-socket-connection-error" env:"F2B_EXIT_ON_SOCKET_CONN_ERROR" help:"When set to true the exporter will immediately exit on a fail2ban socket connection error"`
-	TextFileExporterPath string `name:"collector.textfile.directory" env:"F2B_COLLECTOR_TEXT_PATH" help:"Directory to read text files with metrics from"`
-	BasicAuthUser        string `name:"web.basic-auth.username" env:"F2B_WEB_BASICAUTH_USER" help:"Username to use to protect endpoints with basic auth"`
-	BasicAuthPass        string `name:"web.basic-auth.password" env:"F2B_WEB_BASICAUTH_PASS" help:"Password to use to protect endpoints with basic auth"`
-}
-
-func Parse() *AppSettings {
-	ctx := kong.Parse(
-		&cliStruct,
-		kong.Vars{
-			"default_socket":  "/var/run/fail2ban/fail2ban.sock",
-			"default_address": ":9191",
-		},
-		kong.Name("fail2ban_exporter"),
-		kong.Description("🚀 Export prometheus metrics from a running Fail2Ban instance"),
-		kong.UsageOnError(),
-	)
-
-	validateFlags(ctx)
-	settings := &AppSettings{
-		VersionMode:           cliStruct.VersionMode,
-		DryRunMode:            cliStruct.DryRunMode,
-		MetricsAddress:        cliStruct.ServerAddress,
-		Fail2BanSocketPath:    cliStruct.F2bSocketPath,
-		FileCollectorPath:     cliStruct.TextFileExporterPath,
-		ExitOnSocketConnError: cliStruct.ExitOnSocketError,
-		AuthProvider:          createAuthProvider(),
-	}
-	return settings
-}
-
-func createAuthProvider() auth.AuthProvider {
-	username := cliStruct.BasicAuthUser
-	password := cliStruct.BasicAuthPass
-
-	if len(username) == 0 && len(password) == 0 {
-		return auth.NewEmptyAuthProvider()
-	}
-	log.Print("basic auth enabled")
-	return auth.NewBasicAuthProvider(username, password)
-}
-
-func validateFlags(cliCtx *kong.Context) {
-	var flagsValid = true
-	var messages = []string{}
-	if !cliStruct.VersionMode {
-		if cliStruct.F2bSocketPath == "" {
-			messages = append(messages, "error: fail2ban socket path must not be blank")
-			flagsValid = false
-		}
-		if cliStruct.ServerAddress == "" {
-			messages = append(messages, "error: invalid server address, must not be blank")
-			flagsValid = false
-		}
-		if (len(cliStruct.BasicAuthUser) > 0) != (len(cliStruct.BasicAuthPass) > 0) {
-			messages = append(messages, "error: to enable basic auth both the username and the password must be provided")
-			flagsValid = false
-		}
-	}
-	if !flagsValid {
-		_ = cliCtx.PrintUsage(false)
-		fmt.Println()
-		for i := 0; i < len(messages); i++ {
-			fmt.Println(messages[i])
-		}
-		os.Exit(1)
-	}
-}
@@ -1,13 +0,0 @@
-package cfg
-
-import "git.cryptic.systems/volker.raschek/prometheus-fail2ban-exporter/auth"
-
-type AppSettings struct {
-	VersionMode           bool
-	DryRunMode            bool
-	MetricsAddress        string
-	Fail2BanSocketPath    string
-	FileCollectorPath     string
-	AuthProvider          auth.AuthProvider
-	ExitOnSocketConnError bool
-}
@@ -1,76 +0,0 @@
-package f2b
-
-import (
-	"log"
-	"os"
-
-	"git.cryptic.systems/volker.raschek/prometheus-fail2ban-exporter/cfg"
-	"git.cryptic.systems/volker.raschek/prometheus-fail2ban-exporter/socket"
-	"github.com/prometheus/client_golang/prometheus"
-)
-
-type Collector struct {
-	socketPath                 string
-	exporterVersion            string
-	lastError                  error
-	socketConnectionErrorCount int
-	socketRequestErrorCount    int
-	exitOnSocketConnError      bool
-}
-
-func NewExporter(appSettings *cfg.AppSettings, exporterVersion string) *Collector {
-	log.Printf("reading fail2ban metrics from socket file: %s", appSettings.Fail2BanSocketPath)
-	printFail2BanServerVersion(appSettings.Fail2BanSocketPath)
-	return &Collector{
-		socketPath:                 appSettings.Fail2BanSocketPath,
-		exporterVersion:            exporterVersion,
-		lastError:                  nil,
-		socketConnectionErrorCount: 0,
-		socketRequestErrorCount:    0,
-		exitOnSocketConnError:      appSettings.ExitOnSocketConnError,
-	}
-}
-
-func (c *Collector) Describe(ch chan<- *prometheus.Desc) {
-	ch <- metricServerUp
-	ch <- metricJailCount
-	ch <- metricJailFailedCurrent
-	ch <- metricJailFailedTotal
-	ch <- metricJailBannedCurrent
-	ch <- metricJailBannedTotal
-	ch <- metricErrorCount
-}
-
-func (c *Collector) Collect(ch chan<- prometheus.Metric) {
-	s, err := socket.ConnectToSocket(c.socketPath)
-	if err != nil {
-		log.Printf("error opening socket: %v", err)
-		c.socketConnectionErrorCount++
-		if c.exitOnSocketConnError {
-			os.Exit(1)
-		}
-	} else {
-		defer func() { _ = s.Close() }()
-	}
-
-	c.collectServerUpMetric(ch, s)
-	if err == nil && s != nil {
-		c.collectJailMetrics(ch, s)
-		c.collectVersionMetric(ch, s)
-	}
-	c.collectErrorCountMetric(ch)
-}
-
-func printFail2BanServerVersion(socketPath string) {
-	s, err := socket.ConnectToSocket(socketPath)
-	if err != nil {
-		log.Printf("error connecting to socket: %v", err)
-	} else {
-		version, err := s.GetServerVersion()
-		if err != nil {
-			log.Printf("error interacting with socket: %v", err)
-		} else {
-			log.Printf("successfully connected to fail2ban socket! fail2ban version: %s", version)
-		}
-	}
-}
@@ -1,180 +0,0 @@
-package f2b
-
-import (
-	"log"
-
-	"git.cryptic.systems/volker.raschek/prometheus-fail2ban-exporter/socket"
-	"github.com/prometheus/client_golang/prometheus"
-)
-
-const (
-	namespace = "f2b"
-)
-
-var (
-	metricErrorCount = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "", "errors"),
-		"Number of errors found since startup",
-		[]string{"type"}, nil,
-	)
-	metricServerUp = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "", "up"),
-		"Check if the fail2ban server is up",
-		nil, nil,
-	)
-	metricJailCount = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "", "jail_count"),
-		"Number of defined jails",
-		nil, nil,
-	)
-	metricJailFailedCurrent = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "", "jail_failed_current"),
-		"Number of current failures on this jail's filter",
-		[]string{"jail"}, nil,
-	)
-	metricJailFailedTotal = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "", "jail_failed_total"),
-		"Number of total failures on this jail's filter",
-		[]string{"jail"}, nil,
-	)
-	metricJailBannedCurrent = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "", "jail_banned_current"),
-		"Number of IPs currently banned in this jail",
-		[]string{"jail"}, nil,
-	)
-	metricJailBannedTotal = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "", "jail_banned_total"),
-		"Total number of IPs banned by this jail (includes expired bans)",
-		[]string{"jail"}, nil,
-	)
-	metricJailBanTime = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "config", "jail_ban_time"),
-		"How long an IP is banned for in this jail (in seconds)",
-		[]string{"jail"}, nil,
-	)
-	metricJailFindTime = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "config", "jail_find_time"),
-		"How far back will the filter look for failures in this jail (in seconds)",
-		[]string{"jail"}, nil,
-	)
-	metricJailMaxRetry = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "config", "jail_max_retries"),
-		"The number of failures allowed until the IP is banned by this jail",
-		[]string{"jail"}, nil,
-	)
-	metricVersionInfo = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "", "version"),
-		"Version of the exporter and fail2ban server",
-		[]string{"exporter", "fail2ban"}, nil,
-	)
-)
-
-func (c *Collector) collectErrorCountMetric(ch chan<- prometheus.Metric) {
-	ch <- prometheus.MustNewConstMetric(
-		metricErrorCount, prometheus.CounterValue, float64(c.socketConnectionErrorCount), "socket_conn",
-	)
-	ch <- prometheus.MustNewConstMetric(
-		metricErrorCount, prometheus.CounterValue, float64(c.socketRequestErrorCount), "socket_req",
-	)
-}
-
-func (c *Collector) collectServerUpMetric(ch chan<- prometheus.Metric, s *socket.Fail2BanSocket) {
-	var serverUp float64 = 0
-	if s != nil {
-		pingSuccess, err := s.Ping()
-		if err != nil {
-			c.socketRequestErrorCount++
-			log.Print(err)
-		}
-		if err == nil && pingSuccess {
-			serverUp = 1
-		}
-	}
-	ch <- prometheus.MustNewConstMetric(
-		metricServerUp, prometheus.GaugeValue, serverUp,
-	)
-}
-
-func (c *Collector) collectJailMetrics(ch chan<- prometheus.Metric, s *socket.Fail2BanSocket) {
-	jails, err := s.GetJails()
-	var count float64 = 0
-	if err != nil {
-		c.socketRequestErrorCount++
-		log.Print(err)
-	}
-	if err == nil {
-		count = float64(len(jails))
-	}
-	ch <- prometheus.MustNewConstMetric(
-		metricJailCount, prometheus.GaugeValue, count,
-	)
-
-	for i := range jails {
-		c.collectJailStatsMetric(ch, s, jails[i])
-		c.collectJailConfigMetrics(ch, s, jails[i])
-	}
-}
-
-func (c *Collector) collectJailStatsMetric(ch chan<- prometheus.Metric, s *socket.Fail2BanSocket, jail string) {
-	stats, err := s.GetJailStats(jail)
-	if err != nil {
-		c.socketRequestErrorCount++
-		log.Printf("failed to get stats for jail %s: %v", jail, err)
-		return
-	}
-
-	ch <- prometheus.MustNewConstMetric(
-		metricJailFailedCurrent, prometheus.GaugeValue, float64(stats.FailedCurrent), jail,
-	)
-	ch <- prometheus.MustNewConstMetric(
-		metricJailFailedTotal, prometheus.GaugeValue, float64(stats.FailedTotal), jail,
-	)
-	ch <- prometheus.MustNewConstMetric(
-		metricJailBannedCurrent, prometheus.GaugeValue, float64(stats.BannedCurrent), jail,
-	)
-	ch <- prometheus.MustNewConstMetric(
-		metricJailBannedTotal, prometheus.GaugeValue, float64(stats.BannedTotal), jail,
-	)
-}
-
-func (c *Collector) collectJailConfigMetrics(ch chan<- prometheus.Metric, s *socket.Fail2BanSocket, jail string) {
-	banTime, err := s.GetJailBanTime(jail)
-	if err != nil {
-		c.socketRequestErrorCount++
-		log.Printf("failed to get ban time for jail %s: %v", jail, err)
-	} else {
-		ch <- prometheus.MustNewConstMetric(
-			metricJailBanTime, prometheus.GaugeValue, float64(banTime), jail,
-		)
-	}
-	findTime, err := s.GetJailFindTime(jail)
-	if err != nil {
-		c.socketRequestErrorCount++
-		log.Printf("failed to get find time for jail %s: %v", jail, err)
-	} else {
-		ch <- prometheus.MustNewConstMetric(
-			metricJailFindTime, prometheus.GaugeValue, float64(findTime), jail,
-		)
-	}
-	maxRetry, err := s.GetJailMaxRetries(jail)
-	if err != nil {
-		c.socketRequestErrorCount++
-		log.Printf("failed to get max retries for jail %s: %v", jail, err)
-	} else {
-		ch <- prometheus.MustNewConstMetric(
-			metricJailMaxRetry, prometheus.GaugeValue, float64(maxRetry), jail,
-		)
-	}
-}
-
-func (c *Collector) collectVersionMetric(ch chan<- prometheus.Metric, s *socket.Fail2BanSocket) {
-	fail2banVersion, err := s.GetServerVersion()
-	if err != nil {
-		c.socketRequestErrorCount++
-		log.Printf("failed to get fail2ban server version: %v", err)
-	}
-
-	ch <- prometheus.MustNewConstMetric(
-		metricVersionInfo, prometheus.GaugeValue, float64(1), c.exporterVersion, fail2banVersion,
-	)
-}
@@ -1,49 +0,0 @@
-package textfile
-
-import (
-	"log"
-
-	"git.cryptic.systems/volker.raschek/prometheus-fail2ban-exporter/cfg"
-	"github.com/prometheus/client_golang/prometheus"
-)
-
-type Collector struct {
-	enabled    bool
-	folderPath string
-	fileMap    map[string]*fileData
-}
-
-type fileData struct {
-	readErrors   int
-	fileName     string
-	fileContents []byte
-}
-
-func NewCollector(appSettings *cfg.AppSettings) *Collector {
-	collector := &Collector{
-		enabled:    appSettings.FileCollectorPath != "",
-		folderPath: appSettings.FileCollectorPath,
-		fileMap:    make(map[string]*fileData),
-	}
-	if collector.enabled {
-		log.Printf("reading textfile metrics from: %s", collector.folderPath)
-	}
-	return collector
-}
-
-func (c *Collector) Describe(ch chan<- *prometheus.Desc) {
-	if c.enabled {
-		ch <- metricReadError
-	}
-}
-
-func (c *Collector) Collect(ch chan<- prometheus.Metric) {
-	if c.enabled {
-		c.collectFileContents()
-		c.collectFileErrors(ch)
-	}
-}
-
-func (c *Collector) appendErrorForPath(path string) {
-	c.fileMap[path].readErrors++
-}
@@ -1,57 +0,0 @@
-package textfile
-
-import (
-	"log"
-	"os"
-	"path/filepath"
-	"strings"
-
-	"github.com/prometheus/client_golang/prometheus"
-)
-
-const namespace = "textfile"
-
-var (
-	metricReadError = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "", "error"),
-		"Checks for errors while reading text files",
-		[]string{"path"}, nil,
-	)
-)
-
-func (c *Collector) collectFileContents() {
-	files, err := os.ReadDir(c.folderPath)
-	if err != nil {
-		log.Printf("error reading directory '%s': %v", c.folderPath, err)
-		return
-	}
-
-	for _, file := range files {
-		fileName := file.Name()
-		if !strings.HasSuffix(strings.ToLower(fileName), ".prom") {
-			continue
-		}
-		c.fileMap[fileName] = &fileData{
-			readErrors: 0,
-			fileName:   fileName,
-		}
-
-		fullPath := filepath.Join(c.folderPath, fileName)
-		// #nosec G304
-		content, err := os.ReadFile(fullPath)
-		if err != nil {
-			c.appendErrorForPath(fileName)
-			log.Printf("error reading contents of file '%s': %v", fileName, err)
-		}
-
-		c.fileMap[fileName].fileContents = content
-	}
-}
-
-func (c *Collector) collectFileErrors(ch chan<- prometheus.Metric) {
-	for _, f := range c.fileMap {
-		ch <- prometheus.MustNewConstMetric(
-			metricReadError, prometheus.GaugeValue, float64(f.readErrors), f.fileName,
-		)
-	}
-}
@@ -1,20 +0,0 @@
-package textfile
-
-import (
-	"log"
-	"net/http"
-)
-
-func (c *Collector) WriteTextFileMetrics(w http.ResponseWriter, r *http.Request) {
-	if !c.enabled {
-		return
-	}
-
-	for _, f := range c.fileMap {
-		_, err := w.Write(f.fileContents)
-		if err != nil {
-			c.appendErrorForPath(f.fileName)
-			log.Printf("error writing file contents to response writer '%s': %v", f.fileName, err)
-		}
-	}
-}
@@ -0,0 +1,9 @@
+#/bin/sh
+
+# Print version to logs for debugging purposes
+/app/fail2ban-prometheus-exporter -version
+
+# Start the exporter (use exec to support graceful shutdown)
+# Inspired by: https://akomljen.com/stopping-docker-containers-gracefully/
+exec /app/fail2ban-prometheus-exporter \
+    -db /app/fail2ban.sqlite3
@@ -1,6 +0,0 @@
-# F2B_COLLECTOR_SOCKET=""
-# F2B_COLLECTOR_TEXT_PATH=""
-# F2B_WEB_LISTEN_ADDRESS=""
-# F2B_WEB_BASICAUTH_USER=""
-# F2B_WEB_BASICAUTH_PASS=""
-# F2B_EXIT_ON_SOCKET_CONN_ERROR=""
@@ -1,27 +0,0 @@
-module git.cryptic.systems/volker.raschek/prometheus-fail2ban-exporter
-
-go 1.23.0
-
-toolchain go1.26.4
-
-require (
-	github.com/alecthomas/kong v1.15.0
-	github.com/kisielk/og-rek v1.3.0
-	github.com/nlpodyssey/gopickle v0.3.0
-	github.com/prometheus/client_golang v1.23.2
-)
-
-require (
-	github.com/aristanetworks/gomap v0.0.0-20240919214256-2b26376628e1 // indirect
-	github.com/beorn7/perks v1.0.1 // indirect
-	github.com/cespare/xxhash/v2 v2.3.0 // indirect
-	github.com/kr/text v0.2.0 // indirect
-	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
-	github.com/prometheus/client_model v0.6.2 // indirect
-	github.com/prometheus/common v0.66.1 // indirect
-	github.com/prometheus/procfs v0.16.1 // indirect
-	go.yaml.in/yaml/v2 v2.4.2 // indirect
-	golang.org/x/sys v0.35.0 // indirect
-	golang.org/x/text v0.28.0 // indirect
-	google.golang.org/protobuf v1.36.8 // indirect
-)
@@ -1,62 +0,0 @@
-github.com/alecthomas/assert/v2 v2.11.0 h1:2Q9r3ki8+JYXvGsDyBXwH3LcJ+WK5D0gc5E8vS6K3D0=
-github.com/alecthomas/assert/v2 v2.11.0/go.mod h1:Bze95FyfUr7x34QZrjL+XP+0qgp/zg8yS+TtBj1WA3k=
-github.com/alecthomas/kong v1.15.0 h1:BVJstKbpO73zKpmIu+m/aLRrNmWwxXPIGTNin9VmLVI=
-github.com/alecthomas/kong v1.15.0/go.mod h1:wrlbXem1CWqUV5Vbmss5ISYhsVPkBb1Yo7YKJghju2I=
-github.com/alecthomas/repr v0.5.2 h1:SU73FTI9D1P5UNtvseffFSGmdNci/O6RsqzeXJtP0Qs=
-github.com/alecthomas/repr v0.5.2/go.mod h1:Fr0507jx4eOXV7AlPV6AVZLYrLIuIeSOWtW57eE/O/4=
-github.com/aristanetworks/gomap v0.0.0-20240919214256-2b26376628e1 h1:D5mrqTj0YyG8O2A2SUCuPc2Qf68vyTBaWChSBAJtYJk=
-github.com/aristanetworks/gomap v0.0.0-20240919214256-2b26376628e1/go.mod h1:v/+Hpx3wuPnPWEwT1unZJsNUe4Pu/y1Y+qAf+xj0Ykg=
-github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
-github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
-github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
-github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
-github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
-github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
-github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
-github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
-github.com/hexops/gotextdiff v1.0.3 h1:gitA9+qJrrTCsiCl7+kh75nPqQt1cx4ZkudSTLoUqJM=
-github.com/hexops/gotextdiff v1.0.3/go.mod h1:pSWU5MAI3yDq+fZBTazCSJysOMbxWL1BSow5/V2vxeg=
-github.com/kisielk/og-rek v1.3.0 h1:lTXdQXqFETZKA//FWH4RBNAuiJ/dofxIwHAidoUZoMk=
-github.com/kisielk/og-rek v1.3.0/go.mod h1:4at7oxyfBTDilURhNCf7irHWtosJlJl9uyqUqAkrP4w=
-github.com/klauspost/compress v1.18.0 h1:c/Cqfb0r+Yi+JtIEq73FWXVkRonBlf0CRNYc8Zttxdo=
-github.com/klauspost/compress v1.18.0/go.mod h1:2Pp+KzxcywXVXMr50+X0Q/Lsb43OQHYWRCY2AiWywWQ=
-github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
-github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
-github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
-github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
-github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc=
-github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+fNqagV/RAw=
-github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 h1:C3w9PqII01/Oq1c1nUAm88MOHcQC9l5mIlSMApZMrHA=
-github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822/go.mod h1:+n7T8mK8HuQTcFwEeznm/DIxMOiR9yIdICNftLE1DvQ=
-github.com/nlpodyssey/gopickle v0.3.0 h1:BLUE5gxFLyyNOPzlXxt6GoHEMMxD0qhsE4p0CIQyoLw=
-github.com/nlpodyssey/gopickle v0.3.0/go.mod h1:f070HJ/yR+eLi5WmM1OXJEGaTpuJEUiib19olXgYha0=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
-github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/prometheus/client_golang v1.23.2 h1:Je96obch5RDVy3FDMndoUsjAhG5Edi49h0RJWRi/o0o=
-github.com/prometheus/client_golang v1.23.2/go.mod h1:Tb1a6LWHB3/SPIzCoaDXI4I8UHKeFTEQ1YCr+0Gyqmg=
-github.com/prometheus/client_model v0.6.2 h1:oBsgwpGs7iVziMvrGhE53c/GrLUsZdHnqNwqPLxwZyk=
-github.com/prometheus/client_model v0.6.2/go.mod h1:y3m2F6Gdpfy6Ut/GBsUqTWZqCUvMVzSfMLjcu6wAwpE=
-github.com/prometheus/common v0.66.1 h1:h5E0h5/Y8niHc5DlaLlWLArTQI7tMrsfQjHV+d9ZoGs=
-github.com/prometheus/common v0.66.1/go.mod h1:gcaUsgf3KfRSwHY4dIMXLPV0K/Wg1oZ8+SbZk/HH/dA=
-github.com/prometheus/procfs v0.16.1 h1:hZ15bTNuirocR6u0JZ6BAHHmwS1p8B4P6MRqxtzMyRg=
-github.com/prometheus/procfs v0.16.1/go.mod h1:teAbpZRB1iIAJYREa1LsoWUXykVXA1KlTmWl8x/U+Is=
-github.com/rogpeppe/go-internal v1.10.0 h1:TMyTOH3F/DB16zRVcYyreMH6GnZZrwQVAoYjRBZyWFQ=
-github.com/rogpeppe/go-internal v1.10.0/go.mod h1:UQnix2H7Ngw/k4C5ijL5+65zddjncjaFoBhdsK/akog=
-github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
-github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
-go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
-go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
-go.yaml.in/yaml/v2 v2.4.2 h1:DzmwEr2rDGHl7lsFgAHxmNz/1NlQ7xLIrlN2h5d1eGI=
-go.yaml.in/yaml/v2 v2.4.2/go.mod h1:081UH+NErpNdqlCXm3TtEran0rJZGxAYx9hb/ELlsPU=
-golang.org/x/sys v0.35.0 h1:vz1N37gP5bs89s7He8XuIYXpyY0+QlsKmzipCbUtyxI=
-golang.org/x/sys v0.35.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
-golang.org/x/text v0.28.0 h1:rhazDwis8INMIwQ4tpjLDzUhx6RlXqZNPEM0huQojng=
-golang.org/x/text v0.28.0/go.mod h1:U8nCwOR8jO/marOQ0QbDiOngZVEBB7MAiitBuMjXiNU=
-google.golang.org/protobuf v1.36.8 h1:xHScyCOEuuwZEc6UtSOvPbAT4zRh0xcNRYekJwfqyMc=
-google.golang.org/protobuf v1.36.8/go.mod h1:fuxRtAxBytpl4zzqUh6/eyUujkJdNiuEkXntxiD/uRU=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
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-gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
-gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
@@ -1,64 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"log"
-	"os"
-	"os/signal"
-	"syscall"
-
-	"git.cryptic.systems/volker.raschek/prometheus-fail2ban-exporter/cfg"
-	"git.cryptic.systems/volker.raschek/prometheus-fail2ban-exporter/collector/f2b"
-	"git.cryptic.systems/volker.raschek/prometheus-fail2ban-exporter/collector/textfile"
-	"git.cryptic.systems/volker.raschek/prometheus-fail2ban-exporter/server"
-	"github.com/prometheus/client_golang/prometheus"
-)
-
-var (
-	version = "dev"
-	date    = "unknown"
-)
-
-func printAppVersion() {
-	fmt.Printf("Version:    %s\n", version)
-	fmt.Printf("Build date: %s\n", date)
-}
-
-func main() {
-	appSettings := cfg.Parse()
-	if appSettings.VersionMode {
-		printAppVersion()
-		return
-	}
-
-	handleGracefulShutdown()
-	log.Printf("fail2ban exporter version %s", version)
-	log.Printf("starting server at %s", appSettings.MetricsAddress)
-
-	f2bCollector := f2b.NewExporter(appSettings, version)
-	prometheus.MustRegister(f2bCollector)
-
-	textFileCollector := textfile.NewCollector(appSettings)
-	prometheus.MustRegister(textFileCollector)
-
-	if !appSettings.DryRunMode {
-		svrErr := server.StartServer(appSettings, textFileCollector)
-		err := <-svrErr
-		log.Fatal(err)
-	} else {
-		log.Print("running in dry-run mode - exiting")
-	}
-}
-
-func handleGracefulShutdown() {
-	var signals = make(chan os.Signal, 1)
-
-	signal.Notify(signals, syscall.SIGTERM)
-	signal.Notify(signals, syscall.SIGINT)
-
-	go func() {
-		sig := <-signals
-		log.Printf("caught signal: %+v", sig)
-		os.Exit(0)
-	}()
-}
@@ -1,10 +0,0 @@
-{
-  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "extends": [
-    "local>volker.raschek/renovate-config:default#master",
-    "local>volker.raschek/renovate-config:container#master",
-    "local>volker.raschek/renovate-config:actions#master",
-    "local>volker.raschek/renovate-config:golang#master",
-    "local>volker.raschek/renovate-config:regexp#master"
-  ]
-}
@@ -1,17 +0,0 @@
-package server
-
-import (
-	"net/http"
-
-	"git.cryptic.systems/volker.raschek/prometheus-fail2ban-exporter/auth"
-)
-
-func AuthMiddleware(handlerFunc http.HandlerFunc, authProvider auth.AuthProvider) http.HandlerFunc {
-	return func(w http.ResponseWriter, r *http.Request) {
-		if authProvider.IsAllowed(r) {
-			handlerFunc.ServeHTTP(w, r)
-		} else {
-			w.WriteHeader(http.StatusUnauthorized)
-		}
-	}
-}
@@ -1,46 +0,0 @@
-package server
-
-import (
-	"net/http"
-	"net/http/httptest"
-	"testing"
-)
-
-type testAuthProvider struct {
-	match bool
-}
-
-func (p testAuthProvider) IsAllowed(request *http.Request) bool {
-	return p.match
-}
-
-func newTestRequest() *http.Request {
-	return httptest.NewRequest(http.MethodGet, "http://example.com", nil)
-}
-
-func executeAuthMiddlewareTest(t *testing.T, authMatches bool, expectedCode int, expectedCallCount int) {
-	callCount := 0
-	testHandler := func(w http.ResponseWriter, r *http.Request) {
-		callCount++
-	}
-
-	handler := AuthMiddleware(testHandler, testAuthProvider{match: authMatches})
-	recorder := httptest.NewRecorder()
-	request := newTestRequest()
-	handler.ServeHTTP(recorder, request)
-
-	if recorder.Code != expectedCode {
-		t.Errorf("statusCode = %v, want %v", recorder.Code, expectedCode)
-	}
-	if callCount != expectedCallCount {
-		t.Errorf("callCount = %v, want %v", callCount, expectedCallCount)
-	}
-}
-
-func Test_GIVEN_MatchingBasicAuth_WHEN_MethodCalled_THEN_RequestProcessed(t *testing.T) {
-	executeAuthMiddlewareTest(t, true, http.StatusOK, 1)
-}
-
-func Test_GIVEN_NonMatchingBasicAuth_WHEN_MethodCalled_THEN_RequestRejected(t *testing.T) {
-	executeAuthMiddlewareTest(t, false, http.StatusUnauthorized, 0)
-}
@@ -1,33 +0,0 @@
-package server
-
-import (
-	"log"
-	"net/http"
-
-	"git.cryptic.systems/volker.raschek/prometheus-fail2ban-exporter/collector/textfile"
-	"github.com/prometheus/client_golang/prometheus/promhttp"
-)
-
-const (
-	metricsPath = "/metrics"
-)
-
-func rootHtmlHandler(w http.ResponseWriter, r *http.Request) {
-	_, err := w.Write([]byte(
-		`<html>
-			<head><title>Fail2Ban Exporter</title></head>
-			<body>
-			<h1>Fail2Ban Exporter</h1>
-			<p><a href="` + metricsPath + `">Metrics</a></p>
-			</body>
-		</html>`))
-	if err != nil {
-		log.Printf("error handling root url: %v", err)
-		w.WriteHeader(http.StatusInternalServerError)
-	}
-}
-
-func metricHandler(w http.ResponseWriter, r *http.Request, collector *textfile.Collector) {
-	promhttp.Handler().ServeHTTP(w, r)
-	collector.WriteTextFileMetrics(w, r)
-}
@@ -1,41 +0,0 @@
-package server
-
-import (
-	"log"
-	"net/http"
-	"time"
-
-	"git.cryptic.systems/volker.raschek/prometheus-fail2ban-exporter/cfg"
-	"git.cryptic.systems/volker.raschek/prometheus-fail2ban-exporter/collector/textfile"
-)
-
-func StartServer(
-	appSettings *cfg.AppSettings,
-	textFileCollector *textfile.Collector,
-) chan error {
-	http.HandleFunc("/", AuthMiddleware(
-		rootHtmlHandler,
-		appSettings.AuthProvider,
-	))
-	http.HandleFunc(metricsPath, AuthMiddleware(
-		func(w http.ResponseWriter, r *http.Request) {
-			metricHandler(w, r, textFileCollector)
-		},
-		appSettings.AuthProvider,
-	))
-	log.Printf("metrics available at '%s'", metricsPath)
-
-	svrErr := make(chan error)
-	go func() {
-		httpServer := &http.Server{
-			Addr:              appSettings.MetricsAddress,
-			ReadHeaderTimeout: 10 * time.Second,
-			ReadTimeout:       10 * time.Second,
-			WriteTimeout:      10 * time.Second,
-			IdleTimeout:       30 * time.Second,
-		}
-		svrErr <- httpServer.ListenAndServe()
-	}()
-	log.Print("ready")
-	return svrErr
-}
@@ -1,8 +0,0 @@
-package socket
-
-// Py_builtins_str is used by the pickle decoder to parse the server response into a format Go can understand
-type Py_builtins_str struct{}
-
-func (c Py_builtins_str) Call(args ...interface{}) (interface{}, error) {
-	return args[0], nil
-}
@@ -1,179 +0,0 @@
-package socket
-
-import (
-	"fmt"
-	"github.com/kisielk/og-rek"
-	"github.com/nlpodyssey/gopickle/types"
-	"net"
-	"strings"
-)
-
-type Fail2BanSocket struct {
-	socket  net.Conn
-	encoder *ogórek.Encoder
-}
-
-type JailStats struct {
-	FailedCurrent int
-	FailedTotal   int
-	BannedCurrent int
-	BannedTotal   int
-}
-
-func ConnectToSocket(path string) (*Fail2BanSocket, error) {
-	c, err := net.Dial("unix", path)
-	if err != nil {
-		return nil, err
-	}
-	return &Fail2BanSocket{
-		socket:  c,
-		encoder: ogórek.NewEncoder(c),
-	}, nil
-}
-
-func (s *Fail2BanSocket) Close() error {
-	return s.socket.Close()
-}
-
-func (s *Fail2BanSocket) Ping() (bool, error) {
-	response, err := s.sendCommand([]string{pingCommand, "100"})
-	if err != nil {
-		return false, newConnectionError(pingCommand, err)
-	}
-
-	if t, ok := response.(*types.Tuple); ok {
-		if (*t)[1] == "pong" {
-			return true, nil
-		}
-		return false, fmt.Errorf("unexpected response data (expecting 'pong'): %s", (*t)[1])
-	}
-	return false, newBadFormatError(pingCommand, response)
-}
-
-func (s *Fail2BanSocket) GetJails() ([]string, error) {
-	response, err := s.sendCommand([]string{statusCommand})
-	if err != nil {
-		return nil, err
-	}
-
-	if lvl1, ok := response.(*types.Tuple); ok {
-		if lvl2, ok := lvl1.Get(1).(*types.List); ok {
-			if lvl3, ok := lvl2.Get(1).(*types.Tuple); ok {
-				if lvl4, ok := lvl3.Get(1).(string); ok {
-					splitJails := strings.Split(lvl4, ",")
-					return trimSpaceForAll(splitJails), nil
-				}
-			}
-		}
-	}
-	return nil, newBadFormatError(statusCommand, response)
-}
-
-func (s *Fail2BanSocket) GetJailStats(jail string) (JailStats, error) {
-	response, err := s.sendCommand([]string{statusCommand, jail})
-	if err != nil {
-		return JailStats{}, err
-	}
-
-	stats := JailStats{
-		FailedCurrent: -1,
-		FailedTotal:   -1,
-		BannedCurrent: -1,
-		BannedTotal:   -1,
-	}
-
-	if lvl1, ok := response.(*types.Tuple); ok {
-		if lvl2, ok := lvl1.Get(1).(*types.List); ok {
-			if filter, ok := lvl2.Get(0).(*types.Tuple); ok {
-				if filterLvl1, ok := filter.Get(1).(*types.List); ok {
-					if filterCurrentTuple, ok := filterLvl1.Get(0).(*types.Tuple); ok {
-						if filterCurrent, ok := filterCurrentTuple.Get(1).(int); ok {
-							stats.FailedCurrent = filterCurrent
-						}
-					}
-					if filterTotalTuple, ok := filterLvl1.Get(1).(*types.Tuple); ok {
-						if filterTotal, ok := filterTotalTuple.Get(1).(int); ok {
-							stats.FailedTotal = filterTotal
-						}
-					}
-				}
-			}
-			if actions, ok := lvl2.Get(1).(*types.Tuple); ok {
-				if actionsLvl1, ok := actions.Get(1).(*types.List); ok {
-					if actionsCurrentTuple, ok := actionsLvl1.Get(0).(*types.Tuple); ok {
-						if actionsCurrent, ok := actionsCurrentTuple.Get(1).(int); ok {
-							stats.BannedCurrent = actionsCurrent
-						}
-					}
-					if actionsTotalTuple, ok := actionsLvl1.Get(1).(*types.Tuple); ok {
-						if actionsTotal, ok := actionsTotalTuple.Get(1).(int); ok {
-							stats.BannedTotal = actionsTotal
-						}
-					}
-				}
-			}
-			return stats, nil
-		}
-	}
-	return stats, newBadFormatError(statusCommand, response)
-}
-
-func (s *Fail2BanSocket) GetJailBanTime(jail string) (int, error) {
-	command := fmt.Sprintf(banTimeCommandFmt, jail)
-	return s.sendSimpleIntCommand(command)
-}
-
-func (s *Fail2BanSocket) GetJailFindTime(jail string) (int, error) {
-	command := fmt.Sprintf(findTimeCommandFmt, jail)
-	return s.sendSimpleIntCommand(command)
-}
-
-func (s *Fail2BanSocket) GetJailMaxRetries(jail string) (int, error) {
-	command := fmt.Sprintf(maxRetriesCommandFmt, jail)
-	return s.sendSimpleIntCommand(command)
-}
-
-func (s *Fail2BanSocket) GetServerVersion() (string, error) {
-	response, err := s.sendCommand([]string{versionCommand})
-	if err != nil {
-		return "", err
-	}
-
-	if lvl1, ok := response.(*types.Tuple); ok {
-		if versionStr, ok := lvl1.Get(1).(string); ok {
-			return versionStr, nil
-		}
-	}
-	return "", newBadFormatError(versionCommand, response)
-}
-
-// sendSimpleIntCommand sends a command to the fail2ban socket and parses the response to extract an int.
-// This command assumes that the response data is in the format of `(d, d)` where `d` is a number.
-func (s *Fail2BanSocket) sendSimpleIntCommand(command string) (int, error) {
-	response, err := s.sendCommand(strings.Split(command, " "))
-	if err != nil {
-		return -1, err
-	}
-
-	if lvl1, ok := response.(*types.Tuple); ok {
-		if banTime, ok := lvl1.Get(1).(int); ok {
-			return banTime, nil
-		}
-	}
-	return -1, newBadFormatError(command, response)
-}
-
-func newBadFormatError(command string, data interface{}) error {
-	return fmt.Errorf("(%s) unexpected response format - cannot parse: %v", command, data)
-}
-
-func newConnectionError(command string, err error) error {
-	return fmt.Errorf("(%s) failed to send command through socket: %v", command, err)
-}
-
-func trimSpaceForAll(slice []string) []string {
-	for i := range slice {
-		slice[i] = strings.TrimSpace(slice[i])
-	}
-	return slice
-}
@@ -1,70 +0,0 @@
-package socket
-
-import (
-	"bufio"
-	"bytes"
-	"fmt"
-
-	"github.com/nlpodyssey/gopickle/pickle"
-)
-
-const (
-	commandTerminator    = "<F2B_END_COMMAND>"
-	pingCommand          = "ping"
-	statusCommand        = "status"
-	versionCommand       = "version"
-	banTimeCommandFmt    = "get %s bantime"
-	findTimeCommandFmt   = "get %s findtime"
-	maxRetriesCommandFmt = "get %s maxretry"
-	socketReadBufferSize = 1024
-)
-
-func (s *Fail2BanSocket) sendCommand(command []string) (interface{}, error) {
-	err := s.write(command)
-	if err != nil {
-		return nil, err
-	}
-	return s.read()
-}
-
-func (s *Fail2BanSocket) write(command []string) error {
-	err := s.encoder.Encode(command)
-	if err != nil {
-		return err
-	}
-	_, err = s.socket.Write([]byte(commandTerminator))
-	if err != nil {
-		return err
-	}
-	return nil
-}
-
-func (s *Fail2BanSocket) read() (interface{}, error) {
-	reader := bufio.NewReader(s.socket)
-
-	data := []byte{}
-	for {
-		buf := make([]byte, socketReadBufferSize)
-		_, err := reader.Read(buf)
-		if err != nil {
-			return nil, err
-		}
-		data = append(data, buf...)
-		containsTerminator := bytes.Contains(data, []byte(commandTerminator))
-		if containsTerminator {
-			break
-		}
-	}
-
-	bufReader := bytes.NewReader(data)
-	unpickler := pickle.NewUnpickler(bufReader)
-
-	unpickler.FindClass = func(module, name string) (interface{}, error) {
-		if (module == "builtins" || module == "__builtin__") && name == "str" {
-			return &Py_builtins_str{}, nil
-		}
-		return nil, fmt.Errorf("class not found: %s: %s", module, name)
-	}
-
-	return unpickler.Load()
-}
@@ -0,0 +1,48 @@
+package cfg
+
+import (
+	"flag"
+	"fmt"
+	"os"
+)
+
+const (
+	minServerPort = 1000
+	maxServerPort = 65535
+)
+
+type AppSettings struct {
+	VersionMode    bool
+	MetricsPort    int
+	Fail2BanDbPath string
+}
+
+func Parse() *AppSettings {
+	appSettings := &AppSettings{}
+	flag.BoolVar(&appSettings.VersionMode, "version", false, "show version info and exit")
+	flag.IntVar(&appSettings.MetricsPort, "port", 9191, "port to use for the metrics server")
+	flag.StringVar(&appSettings.Fail2BanDbPath, "db", "", "path to the fail2ban sqlite database")
+
+	flag.Parse()
+	appSettings.validateFlags()
+	return appSettings
+}
+
+func (settings *AppSettings) validateFlags() {
+	var flagsValid = true
+	if !settings.VersionMode {
+		if settings.Fail2BanDbPath == "" {
+			fmt.Println("missing flag 'db'")
+			flagsValid = false
+		}
+		if settings.MetricsPort < minServerPort || settings.MetricsPort > maxServerPort {
+			fmt.Printf("invalid server port, must be within %d and %d (found %d)\n",
+				minServerPort, maxServerPort, settings.MetricsPort)
+			flagsValid = false
+		}
+	}
+	if !flagsValid {
+		flag.Usage()
+		os.Exit(1)
+	}
+}
@@ -0,0 +1,79 @@
+package db
+
+import (
+	"database/sql"
+	"log"
+	"os"
+)
+
+const queryBadIpsPerJail = "SELECT j.name, (SELECT COUNT(1) FROM bips b WHERE j.name = b.jail) FROM jails j"
+const queryBannedIpsPerJail = "SELECT j.name, (SELECT COUNT(1) FROM bans b WHERE j.name = b.jail) FROM jails j"
+
+type Fail2BanDB struct {
+	DatabasePath string
+	sqliteDB     *sql.DB
+}
+
+func MustConnectToDb(databasePath string) *Fail2BanDB {
+	if _, err := os.Stat(databasePath); os.IsNotExist(err) {
+		log.Fatalf("database path does not exist: %v", err)
+	}
+	db, err := sql.Open("sqlite3", databasePath)
+	if err != nil {
+		log.Fatal(err)
+	}
+	return &Fail2BanDB{
+		DatabasePath: databasePath,
+		sqliteDB:     db,
+	}
+}
+
+func (db *Fail2BanDB) CountBannedIpsPerJail() (map[string]int, error) {
+	return db.RunJailNameToCountQuery(queryBannedIpsPerJail)
+}
+
+func (db *Fail2BanDB) CountBadIpsPerJail() (map[string]int, error) {
+	return db.RunJailNameToCountQuery(queryBadIpsPerJail)
+}
+
+func (db *Fail2BanDB) RunJailNameToCountQuery(query string) (map[string]int, error) {
+	stmt, err := db.sqliteDB.Prepare(query)
+	defer db.mustCloseStatement(stmt)
+
+	if err != nil {
+		return nil, err
+	}
+
+	jailNameToCountMap := map[string]int{}
+	rows, err := stmt.Query()
+	if err != nil {
+		return nil, err
+	}
+	if rows == nil {
+		return jailNameToCountMap, nil
+	}
+
+	for rows.Next() {
+		if rows.Err() != nil {
+			return nil, err
+		}
+		jailName := ""
+		count := 0
+		err = rows.Scan(&jailName, &count)
+		if err != nil {
+			return nil, err
+		}
+
+		jailNameToCountMap[jailName] = count
+	}
+	return jailNameToCountMap, nil
+}
+
+func (db *Fail2BanDB) mustCloseStatement(stmt *sql.Stmt) {
+	if stmt != nil {
+		err := stmt.Close()
+		if err != nil {
+			log.Fatal(err)
+		}
+	}
+}
@@ -0,0 +1,103 @@
+package main
+
+import (
+	"fail2ban-prometheus-exporter/cfg"
+	fail2banDb "fail2ban-prometheus-exporter/db"
+	"fmt"
+	_ "github.com/mattn/go-sqlite3"
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
+	"log"
+	"net/http"
+)
+
+const namespace = "fail2ban"
+
+var (
+	version = "dev"
+	commit  = "none"
+	date    = "unknown"
+	builtBy = "unknown"
+
+	metricUp = prometheus.NewDesc(
+		prometheus.BuildFQName(namespace, "", "up"),
+		"Was the last fail2ban query successful.",
+		nil, nil,
+	)
+	metricBannedIpsPerJail = prometheus.NewDesc(
+		prometheus.BuildFQName(namespace, "", "banned_ips"),
+		"Number of banned IPs stored in the database (per jail).",
+		[]string{"jail"}, nil,
+	)
+	metricBadIpsPerJail = prometheus.NewDesc(
+		prometheus.BuildFQName(namespace, "", "bad_ips"),
+		"Number of bad IPs stored in the database (per jail).",
+		[]string{"jail"}, nil,
+	)
+)
+
+type Exporter struct {
+	db *fail2banDb.Fail2BanDB
+}
+
+func (e *Exporter) Describe(ch chan<- *prometheus.Desc) {
+	ch <- metricUp
+	ch <- metricBadIpsPerJail
+	ch <- metricBannedIpsPerJail
+}
+
+func (e *Exporter) Collect(ch chan<- prometheus.Metric) {
+	ch <- prometheus.MustNewConstMetric(
+		metricUp, prometheus.GaugeValue, 1,
+	)
+	e.collectBadIpsPerJailMetrics(ch)
+	e.collectBannedIpsPerJailMetrics(ch)
+}
+
+func (e *Exporter) collectBadIpsPerJailMetrics(ch chan<- prometheus.Metric) {
+	jailNameToCountMap, err := e.db.CountBadIpsPerJail()
+	if err != nil {
+		log.Print(err)
+	}
+
+	for jailName, count := range jailNameToCountMap {
+		ch <- prometheus.MustNewConstMetric(
+			metricBadIpsPerJail, prometheus.GaugeValue, float64(count), jailName,
+		)
+	}
+}
+
+func (e *Exporter) collectBannedIpsPerJailMetrics(ch chan<- prometheus.Metric) {
+	jailNameToCountMap, err := e.db.CountBannedIpsPerJail()
+	if err != nil {
+		log.Print(err)
+	}
+
+	for jailName, count := range jailNameToCountMap {
+		ch <- prometheus.MustNewConstMetric(
+			metricBannedIpsPerJail, prometheus.GaugeValue, float64(count), jailName,
+		)
+	}
+}
+
+func printAppVersion() {
+	fmt.Println(version)
+	fmt.Printf("    build date:  %s\r\n    commit hash: %s\r\n    built by:    %s\r\n", date, commit, builtBy)
+}
+
+func main() {
+	appSettings := cfg.Parse()
+	if appSettings.VersionMode {
+		printAppVersion()
+	} else {
+		log.Print("starting fail2ban exporter")
+
+		exporter := &Exporter{
+			db: fail2banDb.MustConnectToDb(appSettings.Fail2BanDbPath),
+		}
+		prometheus.MustRegister(exporter)
+
+		http.Handle("/metrics", promhttp.Handler())
+		log.Fatal(http.ListenAndServe(fmt.Sprintf(":%d", appSettings.MetricsPort), nil))
+	}
+}
@@ -0,0 +1,8 @@
+module fail2ban-prometheus-exporter
+
+go 1.15
+
+require (
+	github.com/mattn/go-sqlite3 v1.14.6
+	github.com/prometheus/client_golang v1.9.0
+)
@@ -0,0 +1,402 @@
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@@ -1,22 +0,0 @@
-[Unit]
-Description=Prometheus exporter for fail2ban metrics
-Requires=network-online.target
-After=network-online.target
-
-[Service]
-EnvironmentFile=/etc/conf.d/EXECUTABLE
-ExecStart=/usr/bin/EXECUTABLE
-ExecReload=/bin/kill -HUP $MAINPID
-Restart=on-failure
-RestartSec=5s
-
-NoNewPrivileges=true
-
-# NOTE: Would be great to create and use a dedicated user/group via
-# sysusers.conf to access the fail2ban socket, but currently it is no possible
-# without manual configuration of the fail2ban daemon.
-User=root
-Group=root
-
-[Install]
-WantedBy=multi-user.target
@@ -0,0 +1,60 @@
+# CHANGELOG
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog], and this project adheres to [Semantic Versioning].
+
+{{ if .Versions -}}
+## [Unreleased]
+{{- if .Unreleased.CommitGroups }}
+{{ template "commits" .Unreleased.CommitGroups }}
+{{- end -}}
+
+{{- if .Unreleased.NoteGroups -}}
+{{ template "notes" .Unreleased.NoteGroups }}
+{{- end -}}
+{{- end -}}
+
+{{ range .Versions -}}
+## {{ if .Tag.Previous }}[{{ .Tag.Name }}]{{ else }}{{ .Tag.Name }}{{ end }} - {{ datetime "2006-01-02" .Tag.Date }}
+{{ template "commits" .CommitGroups }}
+{{- if .NoteGroups -}}
+{{ template "notes" .NoteGroups }}
+{{- end -}}
+{{ end }}
+---
+
+*This changelog is automatically generated by [git-chglog]*
+
+[Keep a Changelog]: https://keepachangelog.com/en/1.0.0/
+[Semantic Versioning]: https://semver.org/spec/v2.0.0.html
+[git-chglog]: https://github.com/git-chglog/git-chglog
+
+{{- if .Versions }}
+[Unreleased]: {{ .Info.RepositoryURL }}/compare/{{ $latest := index .Versions 0 }}{{ $latest.Tag.Name }}...main
+{{ range .Versions -}}
+{{ if .Tag.Previous -}}
+[{{ .Tag.Name }}]: {{ $.Info.RepositoryURL }}/compare/{{ .Tag.Previous.Name }}...{{ .Tag.Name }}
+{{ end -}}
+{{ end -}}
+{{ end -}}
+
+{{- define "notes" }}
+{{- range . -}}
+### {{ .Title }}
+{{ range .Notes -}}
+- {{ .Body }}
+{{ end }}
+{{ end }}
+{{ end -}}
+
+{{- define "commits" }}
+{{- range . -}}
+{{ if or (eq .RawTitle "feat") (eq .RawTitle "fix") }}
+### {{ .Title }}
+{{ range .Commits -}}
+- ({{ .Hash.Short }}) {{ if .Scope }}**{{ .Scope }}:** {{ end }}{{ .Header }}
+{{ end }}
+{{ end -}}
+{{ end -}}
+{{ end -}}
@@ -0,0 +1,23 @@
+style: gitlab
+template: CHANGELOG.tpl.md
+info:
+  title: CHANGELOG
+  repository_url: https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter
+options:
+  commit_groups:
+    title_maps:
+      feat: Added
+      fix: Fixed
+      revert: Reverted
+  header:
+    pattern: "^(\\w*)\\:\\s(.*)$"
+    pattern_maps:
+      - Type
+      - Subject
+  notes:
+    keywords:
+      - BREAKING CHANGE
+      - Changed
+      - Deprecated
+      - Removed
+      - Security
Author	SHA1	Message	Date
Hector	da7943bf90	docs: update changelog for release	2021-03-28 17:14:48 +01:00
Hector	1682dac4af	docs: fix branch name in chglog configuration Fix the main branch name in the template CHANGELOG file for the git chglog tool.	2021-03-28 17:09:53 +01:00
Hector	7b1ff91ede	Merge branch '9-reduce-docker-image-size' into 'main' Resolve "Reduce docker image size" Closes #9 See merge request hectorjsmith/fail2ban-prometheus-exporter!15	2021-03-27 17:34:41 +00:00
Hector	0751f3fca6	Merge branch 'main' into 9-reduce-docker-image-size	2021-03-27 17:31:41 +00:00
Hector	3c4a8f5495	build: split docker build into two images (#9 ) Update the docker build file to use two images - one for building, and one for running/deployment. This helps reduce the size of the final image.	2021-03-27 17:29:28 +00:00
Hector	0493c4dcb1	Merge branch 'ci/remove-dependency-step' into 'main' Ci/remove dependency step See merge request hectorjsmith/fail2ban-prometheus-exporter!16	2021-03-27 17:27:47 +00:00
Hector	1ac9f5a551	ci: remove dependency step from ci/cd pipeline Remove the dependency check step to avoid breaking builds.	2021-03-27 17:19:45 +00:00
Hector	3de54b0b71	Merge branch 'docs/fix-readme-toc' into 'main' docs: fix item in readme table of contents See merge request hectorjsmith/fail2ban-prometheus-exporter!14	2021-02-11 09:06:44 +00:00
Hector	2ee63cca7d	docs: fix item in readme table of contents	2021-02-11 09:04:38 +00:00
Hector	95f8026f7c	Merge branch 'docs/fix-typo-in-readme-docker-compose' into 'main' docs: fix typo in readme docker-compose See merge request hectorjsmith/fail2ban-prometheus-exporter!13	2021-02-10 18:58:26 +00:00
Hector	c9ad2e826f	docs: fix typo in readme docker-compose	2021-02-10 18:56:25 +00:00
Hector	26da913294	Merge branch 'docs/add-usage-instructions-to-readme-file' into 'main' Docs/add usage instructions to readme file See merge request hectorjsmith/fail2ban-prometheus-exporter!12	2021-02-10 13:09:25 +00:00
Hector	d6ad09341b	docs: populate readme file with project information Update the project README file to include information on what the project does and how to run it.	2021-02-10 11:48:04 +00:00
Hector	51fa607c28	Merge branch '3-publish-docker-image' into 'main' Resolve "Publish docker image" Closes #3 See merge request hectorjsmith/fail2ban-prometheus-exporter!11	2021-02-08 20:10:01 +00:00
Hector	ac8ecfb1aa	ci: restrict docker build to main branch and tags (#3 )	2021-02-08 20:07:56 +00:00
Hector	dae6d559e5	ci: add docker build to gitlab ci/cd (#3 ) Update the Gitlab CI/CD pipeline to include a step to build and push the project docker image. The CI/CD step uses existing Makefile commands to build the docker image.	2021-02-08 20:00:27 +00:00
Hector	542b853309	Merge branch 'build/compile-docker-version-of-tool' into 'main' Build/compile docker version of tool See merge request hectorjsmith/fail2ban-prometheus-exporter!10	2021-02-08 19:54:02 +00:00
Hector	b63f641bfd	build: compile tool during docker build Update the project Dockerfile to compile the tool during the docker build instead of assuming the goreleaser tool was run previously. This allows for custom data to be set in the compiled tool (e.g. compiled by docker) and removes the dependency on another build step. Update the Makefile to include a new command to build the tool for docker which sets the version data correctly. Rename the docker commands to follow the `docker/build-...` format to avoid confusion with the build commands.	2021-02-08 19:48:55 +00:00
Hector	50c969014f	Merge branch 'chore/create-new-src-folder' into 'main' Chore/create new src folder See merge request hectorjsmith/fail2ban-prometheus-exporter!9	2021-02-08 18:53:00 +00:00
Hector	9bf3195743	chore: move all source files to new folder Update the project structure to move all golang files to a new `src/` folder. This keeps all the code located in the same place and easier to work with. Update the Makefile and goreleaser config to continue to work with the new folder structure.	2021-02-08 18:49:48 +00:00
Hector	b1c70da101	Merge branch '2-build-docker-image' into 'main' Resolve "Build docker image" Closes #2 See merge request hectorjsmith/fail2ban-prometheus-exporter!7	2021-02-07 13:11:16 +00:00
Hector	9dc8dd862f	build: add project dockerfile (#2 ) Add a project Dockerfile to allow deploying the application in a docker container. Add a `run.sh` script to start the application in the container. Add Makefile commands to build the docker image based on the Dockerfile. Fix possible nil reference error in the `db` package.	2021-02-07 13:09:02 +00:00
Hector	f452100a75	Merge branch 'fix/compile-without-cgo-enabled' into 'main' Fix/compile without cgo enabled See merge request hectorjsmith/fail2ban-prometheus-exporter!8	2021-02-07 12:59:01 +00:00
Hector	0842419136	fix: compile tool without cgo_enabled flag Remove the `CGO_ENABLED=0` flag from the `goreleaser` configuration. This was causing the compiled binary to throw segmentation errors when collecting metrics.	2021-02-07 11:43:07 +00:00
Hector	e94143e81c	Merge branch '5-setup-project-changelog' into 'main' Resolve "Setup project changelog" Closes #5 See merge request hectorjsmith/fail2ban-prometheus-exporter!6	2021-02-07 11:20:56 +00:00
Hector	eaec4db47c	docs: generate changelog file (#5 )	2021-02-07 11:16:29 +00:00
Hector	50e1d4b8c8	build: add tool to auto-generate changelog (#5 ) Add the `git-chglog` tool to handle auto-generating the project changelog based on the commit history. Add a custom configuration and file template. Update the Makefile to include a command to generate the changelog.	2021-02-07 11:15:41 +00:00
Hector	3cb7c71b17	Merge branch '6-setup-goreleaser-to-compile-tool' into 'main' Resolve "Setup goreleaser to compile tool" Closes #6 See merge request hectorjsmith/fail2ban-prometheus-exporter!5	2021-02-07 11:03:13 +00:00
Hector	acc42d8079	ci: restrict build step to main branch and tags (#6 )	2021-02-07 11:00:13 +00:00
Hector	98c6da4796	Merge branch '8-fail-on-startup-if-database-file-does-not-exist' into 'main' Resolve "Fail on startup if database file does not exist" Closes #8 See merge request hectorjsmith/fail2ban-prometheus-exporter!4	2021-02-07 10:52:14 +00:00
Hector	88be0f358e	ci: add build stage to gitlab ci/cd (#6 ) Update the Gitlab CI/CD process to include a build stage that uses `goreleaser` to build and package the application. The output of the build is stored as an artifact for 1 day.	2021-02-07 10:51:43 +00:00
Hector	570c162c13	build: add goreleaser to build tool (#6 ) Add the `goreleaser` tool to the repository to handle building and publishing the application. Add a simple configuration file to build the application for all major OS versions. Update the Makefile to include commands to build release and snapshot versions of the tool. Add a placeholder CHANGELOG file to be included in the package files.	2021-02-07 10:46:25 +00:00
Hector	6355c9e8e1	feat: fail on startup if database file does not exist (#8 ) Add a check when connecting to the sqlite3 database to ensure that the file exists before connecting. If the file does not exist, the connection fails.	2021-02-07 10:36:08 +00:00
Hector	188626198f	Merge branch '4-configure-tool-using-cli-parameters' into 'main' Resolve "Configure tool using CLI parameters" Closes #4 See merge request hectorjsmith/fail2ban-prometheus-exporter!3	2021-02-06 15:22:07 +00:00
Hector	4f18bf35a8	feat: add cli parameters for db path and metrics port (#4 ) Add support for configuring CLI parameters in the application using a new `cfg` package. The `cfg` package exports an `AppSettings` struct that contains the settings the application was run with. Update the application to use the new CLI parameters to set the db to open and the port to use for the metrics server. Add support for setting the app version during build. The app includes a `-version` flag to print the stored version data.	2021-02-06 15:17:35 +00:00
Hector	5e81a98162	Merge branch 'feat/export-metrics-from-fail2ban-db' into 'main' Feat/export metrics from fail2ban db See merge request hectorjsmith/fail2ban-prometheus-exporter!2	2021-02-06 12:29:47 +00:00
Hector	91cba8080c	feat: export number of banned ips Export the number of banned IPs stored in the fail2ban database as well as the number of bad IPs. Update the queries used to collect data to better handle cases where the database table for bad/banned IPs is empty. The new query always lists all jails, even when the count is zero.	2021-02-06 12:24:31 +00:00
Hector	4b965017d2	feat: export bad ip count per jail Update exported metrics to spit the number of bad IPs per jail using metric value labels. This includes a change to the database code to use a different query that groups the count by the `jail` column.	2021-02-06 12:14:39 +00:00
Hector	0b40e5de82	feat: connect to fail2ban db and extract total bad ips Add dependencies on `sqlite` to allow connecting to the fail2ban database. Add a new `db` module to handle all the database connections and data queries used to generate metrics. Export a new metric for the total number of bad IPs stored in the fail2ban database.	2021-02-06 11:50:13 +00:00
Hector	e2661bf243	Merge branch 'feat/basic-metric-exports' into 'main' feat/basic-metric-exports See merge request hectorjsmith/fail2ban-prometheus-exporter!1	2021-02-05 23:06:29 +00:00
Hector	7ced8464e0	feat: initial setup of metric exporter Add dependency on the prometheus library to start exporting metrics. Add a new `up` metric that always returns `1` to ensure the exporter is working as expected.	2021-02-05 23:04:07 +00:00
Hector	5e52baa4cf	initial commit	2021-02-05 22:49:47 +00:00