Publish to ghcr.io

.github/workflows/docker-image.yml

@@ -1,18 +1,40 @@
-name: Docker Image CI
+name: Create and publish a Docker image
 
 on:
   push:
     branches: [ "master" ]
   pull_request:
     branches: [ "master" ]
 
-jobs:
-
-  build:
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
 
+jobs:
+  build-and-push-image:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
-    - name: Build the Docker image
-      run: docker build . --file Dockerfile --tag bitcoin-fee-notifier:$(date +%s)
+      - name: Checkout repository
+        uses: actions/[email protected]
+
+      - name: Log in to the Container registry
+        uses: docker/[email protected]
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/[email protected]
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Build and push Docker images
+        uses: docker/[email protected]
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}