Add CI to publish official container

.github/workflows/docker.yaml

@@ -0,0 +1,71 @@
+# GitHub actions workflow which builds and publishes the docker images.
+
+name: Build and push docker images
+
+on:
+  push:
+    tags: ["v*"]
+    branches: [ main ]
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  packages: write
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up QEMU
+        id: qemu
+        uses: docker/setup-qemu-action@v2
+        with:
+          platforms: arm64
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Inspect builder
+        run: docker buildx inspect
+
+      - name: Log in to DockerHub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Log in to GHCR
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Calculate docker image tag
+        id: set-tag
+        uses: docker/metadata-action@master
+        with:
+          images: |
+            ghcr.io/${{ github.repository }}
+            docker.io/${{ secrets.DOCKERHUB_USERNAME }}/${{ github.event.repository.name }}
+          flavor: |
+            latest=false
+          tags: |
+            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
+            type=semver,pattern=v{{version}}
+            type=semver,pattern=v{{major}}.{{minor}}
+
+      - name: Build and push all platforms
+        uses: docker/build-push-action@v4
+        with:
+          push: true
+          labels: "gitsha1=${{ github.sha }}"
+          tags: "${{ steps.set-tag.outputs.tags }}"
+          platforms: linux/amd64,linux/arm64
+
+          # arm64 builds OOM without the git fetch setting. c.f.
+          # https://github.com/rust-lang/cargo/issues/10583
+          build-args: |
+            CARGO_NET_GIT_FETCH_WITH_CLI=true
+            BUILD_PROFILE=release

Dockerfile

@@ -1,14 +1,19 @@
 FROM docker.io/rust:alpine AS builder
 
-RUN apk add python3 musl-dev pkgconfig openssl-dev make
-
-ENV RUSTFLAGS="-C target-feature=-crt-static"
+RUN apk add python3 musl-dev pkgconfig openssl-dev make git
 
 WORKDIR /opt/synapse-compressor/
-
 COPY . .
 
-RUN cargo build
+ENV RUSTFLAGS="-C target-feature=-crt-static"
+
+# arm64 builds consume a lot of memory if `CARGO_NET_GIT_FETCH_WITH_CLI` is not
+# set to true, so we expose it as a build-arg.
+ARG CARGO_NET_GIT_FETCH_WITH_CLI=false
+ENV CARGO_NET_GIT_FETCH_WITH_CLI=$CARGO_NET_GIT_FETCH_WITH_CLI
+ARG BUILD_PROFILE=dev
+
+RUN cargo build --profile=$BUILD_PROFILE
 
 WORKDIR /opt/synapse-compressor/synapse_auto_compressor/
 
@@ -18,5 +23,5 @@ FROM docker.io/alpine
 
 RUN apk add --no-cache libgcc
 
-COPY --from=builder /opt/synapse-compressor/target/debug/synapse_compress_state /usr/local/bin/synapse_compress_state
-COPY --from=builder /opt/synapse-compressor/target/debug/synapse_auto_compressor /usr/local/bin/synapse_auto_compressor
+COPY --from=builder /opt/synapse-compressor/target/*/synapse_compress_state /usr/local/bin/synapse_compress_state
+COPY --from=builder /opt/synapse-compressor/target/*/synapse_auto_compressor /usr/local/bin/synapse_auto_compressor