chore(build): Build docker images for multiple architectures (#2041)

Motivation:
Allow running & experimenting with Spinnaker locally on Macbok M1.

Relevant docs:
https://github.com/docker/build-push-action/blob/master/docs/advanced/multi-platform.md

Similar MR:
spinnaker/rosco#886

.github/workflows/build.yml

@@ -19,6 +19,10 @@ jobs:
  - uses: actions/checkout@v2
  with:
  fetch-depth: 0
+ - name: Set up QEMU
+ uses: docker/setup-qemu-action@v2
+ - name: Set up Docker Buildx
+ uses: docker/setup-buildx-action@v2
  - uses: actions/setup-java@v2
  with:
  java-version: 11
@@ -45,10 +49,11 @@ jobs:
  - name: Build and publish slim container image
  # Only run this on repositories in the 'spinnaker' org, not on forks.
  if: startsWith(github.repository, 'spinnaker/')
- uses: docker/build-push-action@v2
+ uses: docker/build-push-action@v3
  with:
  context: .
  file: Dockerfile.slim
+ platforms: linux/amd64,linux/arm64
  push: true
  tags: |
  "${{ env.CONTAINER_REGISTRY }}/${{ steps.build_variables.outputs.REPO }}:${{ github.ref_name }}-latest-unvalidated"

.github/workflows/pr.yml

@@ -13,6 +13,10 @@ jobs:
  - uses: actions/checkout@v2
  with:
  fetch-depth: 0
+ - name: Set up QEMU
+ uses: docker/setup-qemu-action@v2
+ - name: Set up Docker Buildx
+ uses: docker/setup-buildx-action@v2
  - uses: actions/setup-java@v2
  with:
  java-version: 11
@@ -28,20 +32,22 @@ jobs:
  ORG_GRADLE_PROJECT_version: ${{ steps.build_variables.outputs.VERSION }}
  run: ./gradlew build ${{ steps.build_variables.outputs.REPO }}-web:installDist
  - name: Build slim container image
- uses: docker/build-push-action@v2
+ uses: docker/build-push-action@v3
  with:
  context: .
  file: Dockerfile.slim
+ platforms: linux/amd64,linux/arm64
  tags: |
  "${{ env.CONTAINER_REGISTRY }}/${{ steps.build_variables.outputs.REPO }}:latest"
  "${{ env.CONTAINER_REGISTRY }}/${{ steps.build_variables.outputs.REPO }}:${{ steps.build_variables.outputs.VERSION }}"
  "${{ env.CONTAINER_REGISTRY }}/${{ steps.build_variables.outputs.REPO }}:latest-slim"
  "${{ env.CONTAINER_REGISTRY }}/${{ steps.build_variables.outputs.REPO }}:${{ steps.build_variables.outputs.VERSION }}-slim"
  - name: Build ubuntu container image
- uses: docker/build-push-action@v2
+ uses: docker/build-push-action@v3
  with:
  context: .
  file: Dockerfile.ubuntu
+ platforms: linux/amd64,linux/arm64
  tags: |
  "${{ env.CONTAINER_REGISTRY }}/${{ steps.build_variables.outputs.REPO }}:latest-ubuntu"
  "${{ env.CONTAINER_REGISTRY }}/${{ steps.build_variables.outputs.REPO }}:${{ steps.build_variables.outputs.VERSION }}-ubuntu"

.github/workflows/release.yml

@@ -17,6 +17,10 @@ jobs:
  - uses: actions/checkout@v2
  with:
  fetch-depth: 0
+ - name: Set up QEMU
+ uses: docker/setup-qemu-action@v2
+ - name: Set up Docker Buildx
+ uses: docker/setup-buildx-action@v2
  - uses: actions/setup-java@v2
  with:
  java-version: 11
@@ -66,10 +70,11 @@ jobs:
  - name: Build and publish slim container image
  # Only run this on repositories in the 'spinnaker' org, not on forks.
  if: startsWith(github.repository, 'spinnaker/')
- uses: docker/build-push-action@v2
+ uses: docker/build-push-action@v3
  with:
  context: .
  file: Dockerfile.slim
+ platforms: linux/amd64,linux/arm64
  push: true
  tags: |
  "${{ env.CONTAINER_REGISTRY }}/${{ steps.build_variables.outputs.REPO }}:${{ steps.release_info.outputs.RELEASE_VERSION }}-unvalidated"
@@ -78,10 +83,11 @@ jobs:
  - name: Build and publish ubuntu container image
  # Only run this on repositories in the 'spinnaker' org, not on forks.
  if: startsWith(github.repository, 'spinnaker/')
- uses: docker/build-push-action@v2
+ uses: docker/build-push-action@v3
  with:
  context: .
  file: Dockerfile.ubuntu
+ platforms: linux/amd64,linux/arm64
  push: true
  tags: |
  "${{ env.CONTAINER_REGISTRY }}/${{ steps.build_variables.outputs.REPO }}:${{ steps.release_info.outputs.RELEASE_VERSION }}-unvalidated-ubuntu"