Update docker-image.yml

.github/workflows/docker-image.yml

@@ -3,16 +3,25 @@ name: Docker Image CI
 on:
   push:
     branches: [ "main" ]
-  pull_request:
-    branches: [ "main" ]
 
 jobs:
 
   build:
 
     runs-on: ubuntu-latest
+    permissions:
+      packages: write
+      contents: read
 
     steps:
     - uses: actions/checkout@v3
     - name: Build the Docker image
-      run: docker build . --file Dockerfile --tag my-image-name:$(date +%s)
+      run: docker build . --file Dockerfile --tag my-image-name:latest
+    - name: Log in to registry
+      run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u $ --password-stdin
+    - name: Push image
+      run: |
+        IMAGE_ID=ghcr.io/${{ github.repository_owner }}/$IMAGE_NAME
+        TAG=$(date +"%Y-%m-%dT%H-%M")
+        docker tag $IMAGE_NAME $IMAGE_ID:$TAG
+        docker push $IMAGE_ID:$TAG