Small config file

Added a small config file with some variables

.gitea/workflows/buildah-ci.yml

@@ -0,0 +1,22 @@
+name: Build and Push Image with Buildah
+on: [ push ]
+
+jobs:
+  build:
+    name: Build and push image
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Build Image
+      id: build-image
+      uses: redhat-actions/buildah-build@v2
+      with:
+        image: my-app
+        tags: latest ${{ github.sha }}
+        containerfiles: |
+          ./Containerfile
+
+    - name: Print image url
+      run: echo "Image pushed to ${{ steps.push-to-quay.outputs.registry-paths }}"