Actionsでイメージをプッシュするようにした

.github/workflows/publish-images.yml

@@ -0,0 +1,61 @@
+name: build and publish image
+
+on:
+  push:
+    branches:
+      - "main"
+      - "deployment"
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Extract branch name
+        shell: bash
+        run: echo "branch=${GITHUB_REF#refs/heads/}" >> $GITHUB_OUTPUT
+        id: extract_branch
+
+      - name: Generate tag
+        id: generate_tag
+        shell: bash
+        run: echo "tag=$(echo ${{ github.sha }} | cut -c1-7)-$(date +%s)" >> $GITHUB_OUTPUT
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Cache Docker layers
+        uses: actions/cache@v3
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
+      - name: Bake images
+        uses: docker/bake-action@v4
+        env:
+          TAG: ${{ steps.generate_tag.outputs.tag }}
+        with:
+          files: ./docker-bake.hcl
+          push: ${{ github.event_name == 'push' && startsWith( steps.extract_branch.outputs.branch , 'deployment' ) }}
+          set: |
+            *.cache-from=type=local,src=/tmp/.buildx-cache
+            *.cache-to=type=local,mode=min,dest=/tmp/.buildx-cache-new
+          provenance: false
+
+      # https://github.com/docker/build-push-action/issues/252#issuecomment-744400434
+      - name: Move Cache
+        run: |
+          rm -rf /tmp/.buildx-cache
+          mv /tmp/.buildx-cache-new /tmp/.buildx-cache