Build docker image for multiple processor architectures

.github/workflows/release-docker.yml

@@ -0,0 +1,104 @@
+name: Build and Deploy
+
+on:
+  release:
+    types: [created]
+
+env:
+  IMAGE_NAME: dbottiau/surrealdb-migrations
+  BUILDX_NO_DEFAULT_ATTESTATIONS: 1
+
+jobs:
+  docker-build:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        platform:
+          - linux/amd64
+          - linux/arm64
+    steps:
+      - name: Prepare
+        run: |
+          platform=${{ matrix.platform }}
+          echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.IMAGE_NAME }}
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+        if: matrix.platform != 'linux/amd64'
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ vars.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Build and push by digest
+        id: build
+        uses: docker/build-push-action@v6
+        with:
+          platforms: ${{ matrix.platform }}
+          labels: ${{ steps.meta.outputs.labels }}
+          outputs: type=image,name=${{ env.IMAGE_NAME }},push-by-digest=true,name-canonical=true,push=true
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Export digest
+        run: |
+          mkdir -p /tmp/digests
+          digest="${{ steps.build.outputs.digest }}"
+          touch "/tmp/digests/${digest#sha256:}"
+
+      - name: Upload digest
+        uses: actions/upload-artifact@v4
+        with:
+          name: digests-${{ env.PLATFORM_PAIR }}
+          path: /tmp/digests/*
+          if-no-files-found: error
+          retention-days: 1
+
+  docker-merge:
+    runs-on: ubuntu-latest
+    needs:
+      - docker-build
+    steps:
+      - name: Download digests
+        uses: actions/download-artifact@v4
+        with:
+          path: /tmp/digests
+          pattern: digests-*
+          merge-multiple: true
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.IMAGE_NAME }}
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ vars.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Create manifest list and push
+        working-directory: /tmp/digests
+        run: |
+          docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
+            $(printf '${{ env.IMAGE_NAME }}@sha256:%s ' *)
+
+      - name: Inspect image
+        run: |
+          docker buildx imagetools inspect ${{ env.IMAGE_NAME }}:${{ steps.meta.outputs.version }}

Dockerfile

@@ -1,12 +1,27 @@
-FROM clux/muslrust:1.80.1-stable as builder
+FROM rust:1.82 AS builder
+ARG TARGETPLATFORM
+ARG BUILDPLATFORM
+
+RUN apt-get update && apt-get install -y musl-tools
+
 WORKDIR /volume
 ADD src src
 ADD templates templates
 ADD Cargo.toml Cargo.toml
 ADD Cargo.lock Cargo.lock
-RUN cargo build --release --target x86_64-unknown-linux-musl
+
+RUN case "$TARGETPLATFORM" in \
+    "linux/amd64")                   echo "x86_64-unknown-linux-musl" > /tmp/target ;; \
+    "linux/arm64"|"linux/arm64/v8")  echo "aarch64-unknown-linux-musl" > /tmp/target ;; \
+    *)                               echo "Unsupported platform: $TARGETPLATFORM" && exit 1 ;; \
+    esac
+
+RUN rustup target add $(cat /tmp/target)
+RUN cargo build --release --target $(cat /tmp/target)
+
+RUN mkdir -p /tmp/bin && cp /volume/target/$(cat /tmp/target)/release/surrealdb-migrations /tmp/bin/
 
 FROM alpine
-COPY --from=builder /volume/target/x86_64-unknown-linux-musl/release/surrealdb-migrations ./surrealdb-migrations
+COPY --from=builder /tmp/bin/surrealdb-migrations ./surrealdb-migrations
 RUN chmod o+rx ./surrealdb-migrations
 ENTRYPOINT [ "/surrealdb-migrations" ]