Push to the GitHub docker registry

.github/workflows/merge-pr.yml

@@ -10,38 +10,46 @@ on:
 jobs:
   publish-app-docker-image:
     name: "Publish App Docker Image"
+
     env:
-      DOCKER_REGISTRY: 781755201224.dkr.ecr.us-east-2.amazonaws.com
+      DOCKER_REGISTRY: ghcr.io
       DOCKER_PLATFORM: "linux/amd64"
       DOCKER_IMAGE_NAME: faucet
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+      packages: write
+
     steps:
       - name: Check Out Repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Derive Short SHA
         id: short-sha
         run: |
           short_sha=${GITHUB_SHA::7}
           echo "short_sha=$short_sha" >> $GITHUB_OUTPUT
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v2
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@3
         with:
-          platforms: ${{matrix.arch}}
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
-      - name: Login to ECR
-        uses: docker/login-action@v2
+          registry: ${{ env.DOCKER_REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@5
         with:
-          registry: ${{env.DOCKER_REGISTRY}}
-          username: ${{secrets.AWS_ECR_LOGIN_USERNAME}}
-          password: ${{secrets.AWS_ECR_LOGIN_PASSWORD}}
-      - name: Build and Push App Image
-        uses: docker/build-push-action@v4
+          images: ${{ env.REGISTRY }}/${{ env.DOCKER_IMAGE_NAME }}
+          tags: |
+            type=sha,format=short
+            type=raw,value=latest,enable=${{ github.ref == format('refs/heads/{0}', 'main') }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@5
         with:
           context: .
-          platforms: ${{env.DOCKER_PLATFORM}}
           push: true
-          file: ./Dockerfile
-          tags: |
-            ${{env.DOCKER_REGISTRY}}/${{env.DOCKER_IMAGE_NAME}}:latest
-            ${{env.DOCKER_REGISTRY}}/${{env.DOCKER_IMAGE_NAME}}:${{steps.short-sha.outputs.short_sha}}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}