add CI workflow configuration for Docker builds

Author: argentinaluiz

.github/workflows/ci.yaml

@@ -0,0 +1,33 @@
+name: CI
+
+on:
+  push:
+    branches: [ "main" ]
+    # Publish semver tags as releases.
+    tags: [ 'v*.*.*' ]
+  pull_request:
+    branches: [ "main" ]
+
+env:
+  REGISTRY: docker.io
+  DOCKER_USERNAME: argentinaluiz
+  IMAGE_NAME: argentinaluiz/docker-prod-test
+
+jobs:
+  ci:
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log into registry ${{ env.REGISTRY }}
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ env.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_TOKEN }}