Add .forgejo/workflows/build.yml

.forgejo/workflows/build.yml

@@ -0,0 +1,45 @@
+name: build
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  extract-version:
+    runs-on: node
+    outputs:
+      version: ${{ steps.get-version.outputs.version }}
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Read version from Dockerfile
+        id: get-version
+        run: |
+          version=$(grep '^ARG VERSION=' Dockerfile | cut -d '=' -f2)
+          echo "Extracted version: $version"
+          echo "version=$version" >> "$GITHUB_OUTPUT"
+
+  docker:
+    runs-on: host
+    needs:
+        - extract-version
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          registry: git.h2-invent.com
+          username: ${{ secrets.FORGEJO_ACTION_PACKAGE_RW_USER }}
+          password: ${{ secrets.FORGEJO_ACTION_PACKAGE_RW_KEY }}
+
+      - name: Build and push Keycloak Image
+        uses: docker/build-push-action@v6
+        with:
+          push: true
+          tags: git.h2-invent.com/public-system-design/whitebophir:${{ needs.extract-version.outputs.version }}
+          build-args: VERSION=${{ needs.extract-version.outputs.version }}
+