feat: Publish multi-arch docker image (amd64 and arm64) (#1862)

* add arm64 to goreleaser

.github/workflows/release.canary.yml

@@ -8,27 +8,30 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
+        with:
+          platforms: linux/amd64,linux/arm64
+
       - 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)" >> $GITHUB_OUTPUT
-      - name: Build and push commit tag
+
+      - name: Build and push images
         uses: docker/build-push-action@v4
         with:
           file: cmd/proxy/Dockerfile
-          build-args: VERSION=${{github.sha}}
-          tags: gomods/athens-dev:${{ steps.vars.outputs.sha_short }}
+          build-args: VERSION=${{ github.sha }}
+          tags: gomods/athens:canary,gomods/athens-dev:${{ steps.vars.outputs.sha_short }}
           push: true
+          platforms: linux/amd64,linux/arm64

.github/workflows/release.latest.yml

@@ -8,17 +8,37 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
+        with:
+          platforms: linux/amd64,linux/arm64
+
       - name: Login to Docker Hub
         uses: docker/login-action@v2
         with:
           username: ${{ secrets.DOCKER_USER }}
           password: ${{ secrets.DOCKER_PASSWORD }}
-      - name: Build and push latest tag
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: |
+            gomods/athens
+          tags: |
+            type=raw,value=${{ github.ref_name }}
+            type=raw,value=latest
+
+      - name: Build and push images
         uses: docker/build-push-action@v4
         with:
           file: cmd/proxy/Dockerfile
           build-args: VERSION=${{ github.ref_name }}
-          tags: gomods/athens:latest,gomods/athens:${{ github.ref_name }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
           push: true
+          platforms: linux/amd64,linux/arm64

.goreleaser.yml

@@ -12,6 +12,7 @@ builds:
     - darwin
   goarch:
     - amd64
+    - arm64
   main: cmd/proxy/main.go
   binary: athens
   ldflags:

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}
 
@@ -30,7 +39,7 @@ RUN chmod 644 /config/config.toml
 
 # Add tini, see https://github.com/gomods/athens/issues/1155 for details.
 RUN apk add --update git git-lfs mercurial openssh-client subversion procps fossil tini && \
-	mkdir -p /usr/local/go
+    mkdir -p /usr/local/go
 
 ARG USER=athens
 RUN adduser -D -h /home/$USER $USER