Merge branch 'build/compile-docker-version-of-tool' into 'main'

Build/compile docker version of tool

See merge request hectorjsmith/fail2ban-prometheus-exporter!10

Dockerfile

@@ -1,10 +1,24 @@
 # Using golang:latest instead of alpine because of issues with sqlite3
 FROM golang:latest
 
+# Create build folder to compile tool
+WORKDIR /build
+
+# 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
+
+# Create main app folder to run from
 WORKDIR /app
-COPY dist/fail2ban-prometheus-exporter_linux_amd64/fail2ban-prometheus-exporter /app
-COPY docker/run.sh /app
 
+# Move compiled binary to app folder and delete build folder
+RUN mv /build/src/exporter /app/fail2ban-prometheus-exporter
+RUN rm -rf /build
+
+# 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

Makefile

@@ -24,7 +24,11 @@ build/release:
 	./tools/goreleaser_linux_amd64 --rm-dist --skip-publish
 
 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
+
+docker/build-latest:
 	docker build -t registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:latest .
 
-build/docker-tag:
+docker/build-tag:
 	docker build -t registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:$(shell git describe --tags) .