feat: Publish multi-arch docker image (amd64 and arm64)

.github/workflows/build-push-image.yaml

@@ -0,0 +1,39 @@
+on:
+  workflow_call:
+    inputs:
+      version:
+        required: true
+        type: string
+      tags:
+        required: true
+        type: string
+      labels:
+        required: false
+        type: string
+
+jobs:
+  docker-push:
+    name: Build and publish docker image
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKER_USER }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Build and push images
+        uses: docker/build-push-action@v4
+        with:
+          file: cmd/proxy/Dockerfile
+          build-args: VERSION=${{ inputs.version }}
+          tags: ${{ inputs.tags }}
+          labels: ${{ inputs.labels }}
+          push: true
+          platforms: linux/amd64,linux/arm64

.github/workflows/release.canary.yml

@@ -8,27 +8,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
-      - name: Login to Docker Hub
-        uses: docker/login-action@v2
-        with:
-          username: ${{ secrets.DOCKER_USER }}
-          password: ${{ secrets.DOCKER_PASSWORD }}
-      - name: Build and push canary tag
-        uses: docker/build-push-action@v4
-        with:
-          file: cmd/proxy/Dockerfile
-          build-args: VERSION=${{github.sha}}
-          tags: gomods/athens:canary
-          push: true
+
       - name: Set Short SHA
         id: vars
         run: echo "sha_short=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
-      - name: Build and push commit tag
-        uses: docker/build-push-action@v4
+
+      - name: Build and push canary image
+        uses: ./.github/workflows/build-push-image.yaml
         with:
-          file: cmd/proxy/Dockerfile
-          build-args: VERSION=${{github.sha}}
-          tags: gomods/athens-dev:${{ steps.vars.outputs.sha_short }}
-          push: true
+          tags: gomods/athens:canary,gomods/athens-dev:${{ steps.vars.outputs.sha_short }}
+          version: ${{ github.sha }}

.github/workflows/release.latest.yml

@@ -8,17 +8,20 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
-      - name: Login to Docker Hub
-        uses: docker/login-action@v2
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v4
         with:
-          username: ${{ secrets.DOCKER_USER }}
-          password: ${{ secrets.DOCKER_PASSWORD }}
+          images: |
+            gomods/athens
+          tags: |
+            type=raw,value=${{ github.ref_name }}
+            type=raw,value=latest
+
       - name: Build and push latest tag
-        uses: docker/build-push-action@v4
+        uses: ./.github/workflows/build-push-image.yaml
         with:
-          file: cmd/proxy/Dockerfile
-          build-args: VERSION=${{ github.ref_name }}
-          tags: gomods/athens:latest,gomods/athens:${{ github.ref_name }}
-          push: true
+          tags: {{ steps.meta.outputs.tags }}
+          labels: {{ steps.meta.outputs.labels }}
+          version: ${{ github.ref_name }}

cmd/proxy/Dockerfile

@@ -8,15 +8,24 @@
 ARG GOLANG_VERSION=1.20
 ARG ALPINE_VERSION=3.17
 
-FROM golang:${GOLANG_VERSION}-alpine AS builder
+FROM --platform=$BUILDPLATFORM golang:${GOLANG_VERSION}-alpine AS builder
+
+ARG VERSION="unset" \
+		TARGETARCH
+
+ENV GOARCH=${TARGETARCH} \
+		GO111MODULE=on \
+		CGO_ENABLED=0 \
+ 		GOPROXY="https://proxy.golang.org"
 
 WORKDIR $GOPATH/src/github.com/gomods/athens
 
 COPY . .
 
-ARG VERSION="unset"
-
-RUN DATE="$(date -u +%Y-%m-%d-%H:%M:%S-%Z)" && GO111MODULE=on CGO_ENABLED=0 GOPROXY="https://proxy.golang.org" go build -ldflags "-X github.com/gomods/athens/pkg/build.version=$VERSION -X github.com/gomods/athens/pkg/build.buildDate=$DATE -s -w" -o /bin/athens-proxy ./cmd/proxy
+RUN DATE="$(date -u +%Y-%m-%d-%H:%M:%S-%Z)" && \
+	  go build \
+			-ldflags "-X github.com/gomods/athens/pkg/build.version=$VERSION -X github.com/gomods/athens/pkg/build.buildDate=$DATE -s -w" \
+			-o /bin/athens-proxy ./cmd/proxy
 
 FROM alpine:${ALPINE_VERSION}