Updating goreleaser, GitHub workflow, and Dockerfile for CI image cre…

…ation.

Signed-off-by: Samuel Attwood <sam@synadia.com>

.github/workflows/release.yaml

@@ -2,22 +2,38 @@ name: Exporter Release
 on:
   push:
     tags:
-      - 'v*'
+      - v[0-9]+.[0-9]+.[0-9]+
 jobs:
   release:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout code
       uses: actions/checkout@v1
-      with:
-        path: src/github.com/nats-io/prometheus-nats-exporter
+
     - name: Setup Go
-      uses: actions/setup-go@v1
+      uses: actions/setup-go@v3
+      with:
+        go-version: 1.19
+
+    - name: Setup QEMU
+      uses: docker/setup-qemu-action@v2
+
+    - name: Setup Docker Buildx
+      id: buildx
+      uses: docker/setup-buildx-action@v1
+
+    - name: Setup Docker Hub
+      uses: docker/login-action@v2
       with:
-        go-version: 1.17
-    - name: Release
-      shell: bash --noprofile --norc -x -eo pipefail {0}
+        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_CLI_TOKEN }}
+
+    - name: Generate goreleaser release
+      uses: goreleaser/goreleaser-action@v4
       env:
-        GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
-      run: |
-        curl --location http://git.io/goreleaser | bash
+        IMAGE_REGISTRY: "natsio" 
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        distribution: goreleaser
+        version: latest
+        args: release --rm-dist

.goreleaser.yml

@@ -9,6 +9,9 @@ release:
 
   name_template: 'Release {{.Tag}}'
 
+env:
+  - IMAGE_REPOSITORY={{ if index .Env "IMAGE_REGISTRY" }}{{ .Env.IMAGE_REGISTRY }}/{{ end }}{{ .ProjectName }}
+
 builds:
 - id: prometheus-nats-exporter
   main: .
@@ -58,9 +61,6 @@ checksum:
 snapshot:
   name_template: SNAPSHOT-{{ .Commit }}
 
-github_urls:
-  download: https://github.com
-
 nfpms:
   - file_name_template: '{{.ProjectName}}-{{.Tag}}-{{.Arch}}{{if .Arm}}{{.Arm}}{{end}}'
     homepage:  https://nats.io
@@ -71,4 +71,70 @@ nfpms:
     formats:
     - deb
 
-dist: dist
+dockers:
+  - use: buildx
+    ids:
+      - prometheus-nats-exporter
+    dockerfile: docker/linux/Dockerfile
+    goos: linux
+    goarch: amd64
+    image_templates:
+      - "{{ .Env.IMAGE_REPOSITORY }}:{{ if .IsSnapshot }}{{ .Version }}{{ else }}{{ .Tag }}{{ end }}-amd64"
+    build_flag_templates:
+      - "--platform=linux/amd64"
+      - "--label=org.opencontainers.image.created={{ .Date }}"
+      - "--label=org.opencontainers.image.title={{ .ProjectName }}"
+      - "--label=org.opencontainers.image.revision={{ .FullCommit }}"
+      - "--label=org.opencontainers.image.version={{ .Version }}"
+  - use: buildx
+    ids:
+      - prometheus-nats-exporter
+    dockerfile: docker/linux/Dockerfile
+    goos: linux
+    goarch: arm64
+    image_templates:
+      - "{{ .Env.IMAGE_REPOSITORY }}:{{ if .IsSnapshot }}{{ .Version }}{{ else }}{{ .Tag }}{{ end }}-arm64"
+    build_flag_templates:
+      - "--platform=linux/arm64"
+      - "--label=org.opencontainers.image.created={{ .Date }}"
+      - "--label=org.opencontainers.image.title={{ .ProjectName }}"
+      - "--label=org.opencontainers.image.revision={{ .FullCommit }}"
+      - "--label=org.opencontainers.image.version={{ .Version }}"
+  - use: buildx
+    ids:
+      - prometheus-nats-exporter
+    dockerfile: docker/linux/Dockerfile
+    goos: linux
+    goarch: arm
+    goarm: 6
+    image_templates:
+      - "{{ .Env.IMAGE_REPOSITORY }}:{{ if .IsSnapshot }}{{ .Version }}{{ else }}{{ .Tag }}{{ end }}-armv6"
+    build_flag_templates:
+      - "--platform=linux/arm/v6"
+      - "--label=org.opencontainers.image.created={{ .Date }}"
+      - "--label=org.opencontainers.image.title={{ .ProjectName }}"
+      - "--label=org.opencontainers.image.revision={{ .FullCommit }}"
+      - "--label=org.opencontainers.image.version={{ .Version }}"
+  - use: buildx
+    ids:
+      - prometheus-nats-exporter
+    dockerfile: docker/linux/Dockerfile
+    goos: linux
+    goarch: arm
+    goarm: 7
+    image_templates:
+      - "{{ .Env.IMAGE_REPOSITORY }}:{{ if .IsSnapshot }}{{ .Version }}{{ else }}{{ .Tag }}{{ end }}-armv7"
+    build_flag_templates:
+      - "--platform=linux/arm/v7"
+      - "--label=org.opencontainers.image.created={{ .Date }}"
+      - "--label=org.opencontainers.image.title={{ .ProjectName }}"
+      - "--label=org.opencontainers.image.revision={{ .FullCommit }}"
+      - "--label=org.opencontainers.image.version={{ .Version }}"
+
+docker_manifests:
+  - name_template:  "{{ .Env.IMAGE_REPOSITORY }}:{{ if .IsSnapshot }}{{ .Version }}{{ else }}{{ .Tag }}{{ end }}"
+    image_templates:
+      - "{{ .Env.IMAGE_REPOSITORY }}:{{ if .IsSnapshot }}{{ .Version }}{{ else }}{{ .Tag }}{{ end }}-amd64"
+      - "{{ .Env.IMAGE_REPOSITORY }}:{{ if .IsSnapshot }}{{ .Version }}{{ else }}{{ .Tag }}{{ end }}-arm64"
+      - "{{ .Env.IMAGE_REPOSITORY }}:{{ if .IsSnapshot }}{{ .Version }}{{ else }}{{ .Tag }}{{ end }}-armv6"
+      - "{{ .Env.IMAGE_REPOSITORY }}:{{ if .IsSnapshot }}{{ .Version }}{{ else }}{{ .Tag }}{{ end }}-armv7"

Makefile

@@ -2,7 +2,7 @@ export GO111MODULE := on
 drepo ?= natsio
 
 prometheus-nats-exporter.docker:
-	CGO_ENABLED=0 GOOS=linux go build -o $@ -v -a
+	CGO_ENABLED=0 GOOS=linux go build -o $@ -v -a \
 		-tags netgo -tags timetzdata \
 		-installsuffix netgo -ldflags "-s -w"
 

docker/linux/Dockerfile

@@ -1,15 +1,16 @@
-FROM golang:1.19.3 AS build
-COPY . /go/src/prometheus-nats-exporter
-WORKDIR /go/src/prometheus-nats-exporter
-RUN make prometheus-nats-exporter.docker
-
 FROM alpine:latest as osdeps
+
 RUN apk add --no-cache ca-certificates
 
+ARG BINARY=prometheus-nats-exporter
+
 FROM scratch
-COPY --from=build /go/src/prometheus-nats-exporter/prometheus-nats-exporter.docker /prometheus-nats-exporter
+
+COPY ${BINARY} /${BINARY}
+
 COPY --from=osdeps /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
 
 EXPOSE 7777
+
 ENTRYPOINT ["/prometheus-nats-exporter"]
 CMD ["--help"]