doc(README): description, drone example

Makefile

@@ -1,6 +1,6 @@
 # HELM_VERSION
 # Only required to install a specifiy version
-HELM_VERSION?=3.8.0
+HELM_VERSION?=v3.8.0 # renovate: datasource=github-releases depName=helm lookupName=helm/helm versioning=semver
 
 # CONTAINER_RUNTIME
 # The CONTAINER_RUNTIME variable will be used to specified the path to a

README.md

@@ -1,3 +1,64 @@
 # helm-docker
 
-Hello
+[![Build Status](https://drone.cryptic.systems/api/badges/volker.raschek/helm-docker/status.svg)](https://drone.cryptic.systems/volker.raschek/helm-docker)
+[![Docker Pulls](https://img.shields.io/docker/pulls/volkerraschek/helm)](https://hub.docker.com/r/volkerraschek/helm)
+
+This project contains all sources to build the container image
+`docker.io/volkerraschek/helm`. The primary goal of this project is to package
+the binary `helm` as container image to provide the functionally for CI/CD
+workflows. The source code of the binary can be found in the upstream project of
+[helm](github.com/helm/helm).
+
+## drone
+
+Here is an example to lint, package and deploy a chart to chartmuseum via
+`docker.io/volkerraschek/helm`.
+
+```yaml
+kind: pipeline
+type: kubernetes
+name: linter
+
+platform:
+  os: linux
+  arch: amd64
+
+steps:
+- name: helm lint
+  commands:
+  - helm lint
+  image: docker.io/volkerraschek/helm:latest
+  resources:
+    limits:
+      cpu: 50
+      memory: 50M
+
+---
+kind: pipeline
+type: kubernetes
+name: release
+
+platform:
+  os: linux
+
+steps:
+- name: release-helm-chart
+  commands:
+  - helm plugin install https://github.com/chartmuseum/helm-push.git
+  - helm repo add myrepo https://charts.example.com/myrepo
+  - helm package --version ${DRONE_TAG} .
+  - helm cm-push ${DRONE_REPO_NAME}-${DRONE_TAG}.tgz myrepo
+  environment:
+    HELM_REPO_PASSWORD:
+      from_secret: helm_repo_password
+    HELM_REPO_USERNAME:
+      from_secret: helm_repo_username
+  image: docker.io/volkerraschek/helm:latest
+  resources:
+    limits:
+      cpu: 50
+      memory: 50M
+trigger:
+  event:
+  - tag
+```

install.sh

@@ -30,7 +30,7 @@ case `uname -m` in
 esac
 
 apk add --update --no-cache wget git
-wget ${BASE_URL}/helm-v${VERSION}-linux-${ARCH}.tar.gz -O - | tar -xz
+wget ${BASE_URL}/helm-${VERSION}-linux-${ARCH}.tar.gz -O - | tar -xz
 mv linux-${ARCH}/helm /usr/bin/helm
 chmod +x /usr/bin/helm
 rm -rf linux-${ARCH}

renovate.json

@@ -1,8 +1,33 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "automerge": true,
   "automergeStrategy": "merge-commit",
   "automergeType": "pr",
-  "rebaseLabel": "renovate/rebase",
+  "labels": [ "renovate" ],
-  "rebaseWhen": "behind-base-branch"
+  "packageRules": [
+    {
+      "addLabels": [ "renovate/droneci", "renovate/automerge" ],
+      "automerge": true,
+      "matchManagers": "droneci"
+    },
+    {
+      "addLabels": [ "renovate/helm", "renovate/automerge" ],
+      "automerge": true,
+      "matchPackageNames": [ "helm" ],
+      "matchManagers": [ "regex" ],
+      "matchUpdateTypes": [ "minor", "patch"]
+    }
+  ],
+  "rebaseLabel": "renovate/rebase",
+  "rebaseWhen": "behind-base-branch",
+  "regexManagers": [
+    {
+      "description": "Update helm version",
+      "fileMatch": [
+        "^Makefile$"
+      ],
+      "matchStrings": [
+        "HELM_VERSION\\?=(?<currentValue>.*) # renovate: datasource=(?<datasource>.*) depName=(?<depName>.*) (lookupName=(?<lookupName>.*))? (versioning=(?<versioning>.*))?"
+      ]
+    }
+  ]
 }