Build docker images

.Dockerignore

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+rc-simulator

.github/workflows/dockerpush.yml

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+name: Docker
+
+on:
+  schedule:
+    - cron: '0 10 4 * *' # everyday at 4h10
+
+  push:
+    # Publish `master` as Docker `latest` image.
+    branches:
+      - master
+      - v*
+
+    # Publish `v1.2.3` tags as releases.
+    tags:
+      - v*
+
+  # Run tests for any PRs.
+  pull_request:
+
+env:
+  IMAGE_REPOSITORY: cyrilix
+  IMAGE_NAME: robocar-simulator
+  PLATFORMS: linux/arm64,linux/amd64,linux/arm/v7
+
+jobs:
+
+  # Push image to GitHub Package Registry.
+  # See also https://docs.docker.com/docker-hub/builds/
+  push:
+    runs-on: ubuntu-latest
+    if: github.event_name == 'push'
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Repo metadata
+        id: repo
+        uses: actions/github-script@v3
+        with:
+          script: |
+            const repo = await github.repos.get(context.repo)
+            return repo.data
+
+      - name: Prepare
+        id: prep
+        run: |
+          DOCKER_IMAGE=${IMAGE_REPOSITORY}/${IMAGE_NAME}
+          VERSION=noop
+          if [ "${{ github.event_name }}" = "schedule" ]; then
+            VERSION=nightly
+          elif [[ $GITHUB_REF == refs/tags/* ]]; then
+            VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,' | sed "s/\.x$//" )
+          elif [[ $GITHUB_REF == refs/heads/* ]]; then
+            VERSION=$(echo ${GITHUB_REF#refs/heads/} | sed -r 's#/+#-#g')
+            if [ "${{ github.event.repository.default_branch }}" = "$VERSION" ]; then
+              VERSION=edge
+            fi
+          elif [[ $GITHUB_REF == refs/pull/* ]]; then
+            VERSION=pr-${{ github.event.number }}
+          fi
+          TAGS="${DOCKER_IMAGE}:${VERSION}"
+          if [[ $VERSION =~ ^v[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
+            MINOR=${VERSION%.*}
+            MAJOR=${MINOR%.*}
+            TAGS="$TAGS,${DOCKER_IMAGE}:${MINOR},${DOCKER_IMAGE}:${MAJOR},${DOCKER_IMAGE}:latest"
+          elif [ "${{ github.event_name }}" = "push" ]; then
+            TAGS="$TAGS,${DOCKER_IMAGE}:sha-${GITHUB_SHA::8}"
+          fi
+          echo ::set-output name=version::${VERSION}
+          echo ::set-output name=tags::${TAGS}
+          echo ::set-output name=created::$(date -u +'%Y-%m-%dT%H:%M:%SZ')
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+        with:
+          platforms: all
+
+      - name: Docker Setup Buildx
+        uses: docker/setup-buildx-action@v1.0.2
+
+      - name: Login to DockerHub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.dockerhub_username }}
+          password: ${{ secrets.dockerhub_token }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          file: ./Dockerfile
+          platforms: ${{ env.PLATFORMS }}
+          push: true
+          tags: ${{ steps.prep.outputs.tags }}
+          labels: |
+            org.opencontainers.image.title=${{ fromJson(steps.repo.outputs.result).name }}
+            org.opencontainers.image.description=${{ fromJson(steps.repo.outputs.result).description }}
+            org.opencontainers.image.url=${{ fromJson(steps.repo.outputs.result).html_url }}
+            org.opencontainers.image.source=${{ fromJson(steps.repo.outputs.result).clone_url }}
+            org.opencontainers.image.version=${{ steps.prep.outputs.version }}
+            org.opencontainers.image.created=${{ steps.prep.outputs.created }}
+            org.opencontainers.image.revision=${{ github.sha }}
+            org.opencontainers.image.licenses=${{ fromJson(steps.repo.outputs.result).license.spdx_id }}
+
+
+
+
+

Dockerfile

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+FROM --platform=$BUILDPLATFORM golang:alpine AS builder
+
+ARG TARGETPLATFORM
+ARG BUILDPLATFORM
+
+WORKDIR /go/src
+ADD . .
+
+RUN GOOS=$(echo $TARGETPLATFORM | cut -f1 -d/) && \
+    GOARCH=$(echo $TARGETPLATFORM | cut -f2 -d/) && \
+    GOARM=$(echo $TARGETPLATFORM | cut -f3 -d/ | sed "s/v//" ) && \
+    CGO_ENABLED=0 GOOS=${GOOS} GOARCH=${GOARCH} GOARM=${GOARM} go build -mod vendor -tags netgo ./cmd/rc-simulator/
+
+
+
+
+FROM gcr.io/distroless/static
+
+USER 1234
+COPY --from=builder /go/src/rc-simulator /go/bin/rc-simulator
+ENTRYPOINT ["/go/bin/rc-simulator"]