dockerize

.github/workflows/container-rainbow-aws.yaml

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+name: container-rainbow-aws
+on: [push]
+env:
+  REGISTRY: ${{ secrets.AWS_ECR_REGISTRY_USEAST2_PACKAGES_REGISTRY }}
+  USERNAME: ${{ secrets.AWS_ECR_REGISTRY_USEAST2_PACKAGES_USERNAME }}
+  PASSWORD: ${{ secrets.AWS_ECR_REGISTRY_USEAST2_PACKAGES_PASSWORD }}
+  # github.repository as <account>/<repo>
+  IMAGE_NAME: rainbow
+
+jobs:
+  container-rainbow-aws:
+    if: github.repository == 'bluesky-social/indigo'
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+      id-token: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Setup Docker buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Log into registry ${{ env.REGISTRY }}
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ env.USERNAME }}
+          password: ${{ env.PASSWORD }}
+
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: |
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=sha,enable=true,priority=100,prefix=,suffix=,format=long
+
+      - name: Build and push Docker image
+        id: build-and-push
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          file: ./cmd/rainbow/Dockerfile
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

cmd/rainbow/Dockerfile

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+FROM golang:1.22-bullseye AS build-env
+
+ENV DEBIAN_FRONTEND=noninteractive
+ENV TZ=Etc/UTC
+ENV GODEBUG="netdns=go"
+ENV GOOS="linux"
+ENV GOARCH="amd64"
+ENV CGO_ENABLED="1"
+
+WORKDIR /usr/src/rainbow
+
+COPY . .
+
+RUN go mod download && \
+  go mod verify
+
+RUN go build \
+    -v  \
+    -trimpath \
+    -tags timetzdata \
+    -o /rainbow-bin \
+    ./cmd/rainbow
+
+FROM debian:bullseye-slim
+
+ENV DEBIAN_FRONTEND="noninteractive"
+ENV TZ=Etc/UTC
+ENV GODEBUG="netdns=go"
+
+RUN apt-get update && apt-get install --yes \
+  dumb-init \
+  ca-certificates \
+  runit
+
+WORKDIR /rainbow
+COPY --from=build-env /rainbow-bin /usr/bin/rainbow
+
+ENTRYPOINT ["/usr/bin/dumb-init", "--"]
+CMD ["/usr/bin/rainbow"]
+
+LABEL org.opencontainers.image.source=https://github.com/bluesky-social/indigo
+LABEL org.opencontainers.image.description="bsky.app rainbow"
+LABEL org.opencontainers.image.licenses=MIT