feat(infrastructure): test basic workflow

.github/workflows/workflow.yml

@@ -0,0 +1,46 @@
+name: Build, Push and Update Image in Manifest
+
+on:
+  push:
+    branches: [ "main" ]
+  workflow_dispatch:
+
+jobs:
+  build-and-update:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      packages: write
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+
+      - name: Login to registry
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USER }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Build and push Docker image
+        id: build
+        uses: docker/build-push-action@v5
+        with:
+          context: ./cd-test
+          push: true
+          tags: ghcr.io/${{ secrets.DOCKER_USER }}/cd-test:latest
+
+      - name: Get image digest
+        # docker/build-push-action outputs `digest` automatically
+        run: echo "IMAGE_DIGEST=${{ steps.build.outputs.digest }}" >> $GITHUB_ENV
+
+      - name: Update manifest with new image digest
+        uses: OpsVerseIO/image-updater-action@0.1.0
+        with:
+          valueFile: 'cd-test/guestbook-ui-deployment.yaml'
+          propertyPath: 'spec.template.spec.containers[0].image'
+          # zapíšeme image s digestem
+          value: ${{ secrets.DOCKER_USER }}/cd-test@${{ env.IMAGE_DIGEST }}
+          commitChange: true
+          message: "Update image to digest ${{ env.IMAGE_DIGEST }}"
+