Add .forgejo/workflows/docker-build.yml

.forgejo/workflows/docker-build.yml

@@ -0,0 +1,39 @@
+name: Build and Push Image
+description: Builds and pushes a Docker image.
+
+inputs:
+  repo_name:
+    description: "Name of the repo (also used as build context path)"
+    required: true
+  version:
+    description: "Version tag"
+    required: true
+
+runs:
+  using: "composite"
+  steps:
+    - name: Checkout Repository
+      uses: actions/checkout@v4
+      with:
+        github-server-url: https://git.h2-invent.com
+        repository: Public-System-Design/${{ inputs.repo_name }}
+        ref: main
+        path: ${{ inputs.repo_name }}
+
+    - name: Login to Docker Hub
+      uses: docker/login-action@v3
+      with:
+        registry: git.h2-invent.com
+        username: ${{ secrets.FORGEJO_ACTION_PACKAGE_RW_USER }}
+        password: ${{ secrets.FORGEJO_ACTION_PACKAGE_RW_KEY }}
+
+    - name: Build and push Docker image
+      uses: docker/build-push-action@v6
+      with:
+        context: ./${{ inputs.repo_name }}
+        push: true
+        tags: |
+          git.h2-invent.com/public-system-design/${{ inputs.repo_name }}:${{ inputs.version }}
+          git.h2-invent.com/public-system-design/${{ inputs.repo_name }}:latest
+        build-args: |
+          VERSION=${{ inputs.version }}