Initial commit

docker-build-push/action.yml

@@ -0,0 +1,40 @@
+name: Docker Build and Push
+description: Extract metadata, build and push Docker image to git.sebse.de
+
+inputs:
+  image:
+    description: Full image name, e.g. git.sebse.de/sebse/my-app
+    required: true
+  context:
+    description: Docker build context path
+    required: true
+  dockerfile:
+    description: Path to Dockerfile (optional, defaults to context/Dockerfile)
+    required: false
+    default: ""
+
+runs:
+  using: composite
+  steps:
+    - name: Extract metadata
+      id: meta
+      uses: docker/metadata-action@v5
+      with:
+        images: ${{ inputs.image }}
+        tags: |
+          type=sha,prefix=,format=short
+          type=raw,value=latest
+
+    - name: Setup Buildx
+      uses: docker/setup-buildx-action@v3
+
+    - name: Build and push
+      uses: docker/build-push-action@v5
+      with:
+        context: ${{ inputs.context }}
+        file: ${{ inputs.dockerfile != '' && inputs.dockerfile || format('{0}/Dockerfile', inputs.context) }}
+        push: true
+        tags: ${{ steps.meta.outputs.tags }}
+        labels: ${{ steps.meta.outputs.labels }}
+        cache-from: type=registry,ref=${{ inputs.image }}:latest
+        cache-to: type=inline