Docker build github action

Author: PascalLike

.github/workflows/docker-build.yml

@@ -0,0 +1,46 @@
+name: Docker Build
+
+on:
+  workflow_run:
+    workflows: ["Linux GitHub CI"]
+    types:
+      - completed
+
+jobs:
+  build-docker:
+    if: >
+      github.event.workflow_run.conclusion == 'success' &&
+      (github.event.workflow_run.head_branch == 'main' || github.event.workflow_run.head_branch == 'ghaction-docker')
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+    steps:
+      # The checkout action is required to access the repository files,
+      # including the Dockerfile.
+      # It needs to checkout the specific commit that triggered the 'Linux GitHub CI' workflow.
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.workflow_run.head_sha }}
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./docker/gn-image/Dockerfile
+          push: true
+          tags: ghcr.io/${{ github.repository }}/geonetwork:${{ github.event.workflow_run.head_branch }}

docker/gn-image/Dockerfile

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+# Build stage
+FROM maven:3.8-jdk-11 AS builder
+
+WORKDIR /usr/src/geonetwork
+
+# Copy the entire project
+COPY . .
+
+# Build the project and create the WAR file
+# The command is taken from the release-build.sh script
+RUN mvn clean install -DskipTests -ntp -Pwar -Pwro4j-prebuild-cache
+
+# Runtime stage
+FROM jetty:9-jre11
+
+# The geonetwork.war file is in web/target/
+COPY --from=builder /usr/src/geonetwork/web/target/geonetwork.war /var/lib/jetty/webapps/geonetwork.war
+
+# Expose the default Jetty port
+EXPOSE 8080