Adding architecture support for arm/arm64/amd64 docker images

.github/workflows/ci.yml

@@ -90,20 +90,38 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v2
 
-      - name: Determine tag
+      - name: Determine Docker Tag
         uses: haya14busa/action-cond@v1
         id: imagetag
         with:
           cond: ${{ github.event_name == 'pull_request' }}
           if_true: ${{ github.sha }}
-          if_false: "master"
+          if_false: 'master'
 
-      - name: Build
-        uses: docker/build-push-action@v1
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
         with:
-          username: ${{ secrets.DOCKER_USERNAME }}
-          password: ${{ secrets.DOCKER_PASSWORD }}
-          repository: dexidp/dex
-          tags: ${{ steps.imagetag.outputs.value }}
-          add_git_labels: true
+          platforms: all
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v1
+        with:
+          install: true
+          version: latest
+          driver-opts: image=moby/buildkit:master
+
+      - name: Login to DockerHub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_PASSWORD }}
+
+      - name: Build and Push
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          file: Dockerfile
+          platforms: linux/amd64,linux/arm/v7,linux/arm64
           push: ${{ github.event_name == 'push' }}
+          tags: dexidp/dex:${{ steps.imagetag.outputs.value }}

.github/workflows/release.yml

@@ -3,7 +3,7 @@ name: Release
 on:
   push:
     tags:
-      - "v[0-9]+.[0-9]+.[0-9]+"
+      - 'v[0-9]+.[0-9]+.[0-9]+'
 
 jobs:
   docker:
@@ -13,12 +13,39 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v2
 
-      - name: Build and push image
-        uses: docker/build-push-action@v1
+      - name: Get Version
+        id: info
+        run: |
+          VERSION=$(shell ./scripts/git-version)
+          echo ::set-output name=version::${VERSION}
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+        with:
+          platforms: all
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v1
+        with:
+          install: true
+          version: latest
+          driver-opts: image=moby/buildkit:master
+
+      - name: Login to DockerHub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_PASSWORD }}
+
+      - name: Build and Push
+        uses: docker/build-push-action@v2
         with:
-          username: ${{ secrets.DOCKER_USERNAME }}
-          password: ${{ secrets.DOCKER_PASSWORD }}
-          repository: dexidp/dex
-          tags: latest
-          tag_with_ref: true
-          add_git_labels: true
+          context: .
+          file: Dockerfile
+          platforms: linux/amd64,linux/arm/v7,linux/arm64
+          push: true
+          tags: |
+            dexidp/dex:latest
+            dexidp/dex:${{ steps.info.outputs.version }}
+

Dockerfile

@@ -1,11 +1,25 @@
 FROM golang:1.14-alpine
 
+ARG TARGETOS
+ARG TARGETARCH
+ARG TARGETVARIANT=""
+
+WORKDIR /go/src/github.com/dexidp/dex
+
+ENV GOOS=${TARGETOS} \
+  GOARCH=${TARGETARCH} \
+  GOARM=${TARGETVARIANT}
+
 RUN apk add --no-cache --update alpine-sdk
 
-COPY . /go/src/github.com/dexidp/dex
-RUN cd /go/src/github.com/dexidp/dex && make release-binary
+COPY . .
+
+RUN make release-binary
 
 FROM alpine:3.12
+
+WORKDIR /
+
 # Dex connectors, such as GitHub and Google logins require root certificates.
 # Proper installations should manage those certificates, but it's a bad user
 # experience when this doesn't work out of the box.
@@ -14,12 +28,12 @@ FROM alpine:3.12
 RUN apk add --update ca-certificates openssl
 
 USER 1001:1001
+
 COPY --from=0 /go/bin/dex /usr/local/bin/dex
 
 # Import frontend assets and set the correct CWD directory so the assets
 # are in the default path.
-COPY web /web
-WORKDIR /
+COPY web .
 
 ENTRYPOINT ["dex"]