Use Podman for container image builds

.gitea/workflows/container.yaml

@@ -10,21 +10,25 @@ jobs:
     steps:
       - name: Check out repository
         uses: actions/checkout@v4
-      - name: Set up Docker BuildX
-        uses: docker/setup-buildx-action@v3
-      - name: Login to container registry
-        uses: docker/login-action@v3
+      - name: Install dependencies
+        run: |
+          apt-get update -y
+          apt-get install -y podman buildah
+      - name: Build container image
+        id: build-image
+        uses: redhat-actions/buildah-build@v2
+        with:
+          image: ${{ env.CONTAINER_NAME }}
+          tags: ${{ env.CONTAINER_TAG }}
+          containerfiles: play/Containerfile
+      - name: Push to container registry
+        id: push-to-registry
+        uses: redhat-actions/push-to-registry@v2
         with:
           registry: ${{ vars.CONTAINER_REGISTRY_URL }}
+          image: ${{ steps.build-image.outputs.image }}
+          tags: ${{ steps.build-image.outputs.tags }}
           username: ${{ secrets.CONTAINER_REGISTRY_USERNAME }}
           password: ${{ secrets.CONTAINER_REGISTRY_PASSWORD }}
-      - name: Build and push container
-        uses: docker/build-push-action@v5
-        with:
-          context: .
-          file: play/Containerfile
-          platforms: |
-            linux/amd64
-            linux/arm64
-          push: true
-          tags: ${{ vars.CONTAINER_REGISTRY_URL }}/${{ env.CONTAINER_NAME }}:${{ env.CONTAINER_TAG }}
+      - name: Print container image URL
+        run: echo "Image pushed to ${{ steps.push-to-quay.outputs.registry-paths }}"