Create java-shenandoah.yml

.github/workflows/java-shenandoah.yml

@@ -0,0 +1,60 @@
+name: build java_shenandoah (Shipilev)
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 17 1,15 * *" # bi-weekly on 1st and 15th calendar day at 17:00
+  push:
+    branches:
+      - main
+    paths:
+      - java-shenandoah/**
+
+permissions:
+  actions: read
+  packages: write
+
+concurrency:
+  group: java-shenandoah-${{ github.ref }}-1
+  cancel-in-progress: true
+
+jobs:
+  build_and_push:
+    name: "java${{ matrix.tag }}_shenandoah"
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        tag:
+          - 8
+          - 11
+          - 17
+          - 21
+    steps:
+      - name: Git checkout for Github repository workspace
+        uses: actions/checkout@v4
+
+      - name: Setup QEMU for multiarch builds
+        uses: docker/setup-qemu-action@v3
+
+      - name: Setup Docker buildx
+        uses: docker/setup-buildx-action@v3
+        with:
+          buildkitd-flags: --debug
+
+      - name: Login to registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push image
+        uses: docker/build-push-action@v6
+        with:
+          context: ./java-shenandoah
+          platforms: linux/amd64,linux/arm64
+          file: ./java-shenandoah/${{ matrix.tag }}/Dockerfile
+          push: true
+          tags: ghcr.io/lovinoes/images:java${{ matrix.tag }}_shenandoah
+