docker push update

.github/workflows/image_build.yml

@@ -1,4 +1,4 @@
-name: "Docker image build"
+name: Create and publish a Docker image
 
 #on:
 #  push:
@@ -7,26 +7,35 @@ name: "Docker image build"
 
 on: [push, pull_request]
 
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
 jobs:
   docker:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
     steps:
-      - name: Checkout
+      - name: Checkout repository
         uses: actions/checkout@v2
-#      - name: Set up QEMU
-#        uses: docker/setup-qemu-action@v1
-#      - name: Set up Docker Buildx
-#        uses: docker/setup-buildx-action@v1
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v1
         with:
-          registry: ghcr.io
+          registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
-      - name: Build and push
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v3
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+      - name: Build and push Docker image
         uses: docker/build-push-action@v2
         with:
           context: .
           file: aprsc.dockerfile
           push: true
-          tags: peterus/trackdirect:aprsc
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}