Push image to gh

Author: Stefan Kuethe

.github/workflows/docker-image-shinylive-nginx.yml

@@ -2,24 +2,33 @@ name: Docker Image CI
 
 on:
   push:
-    branches: [ "main" ]
+    branches: ["main"]
   pull_request:
-    branches: [ "main" ]
+    branches: ["main"]
 
 env:
-  IMAGE_NAME: vancouver-blocks
+  IMAGE_NAME: shinylive-nginx
   VERSION: latest
   CONTEXT: shinylive_without_quarto
 
 jobs:
-
   build:
-
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
-    - name: Build the Docker image
-      run: |
-       cd $CONTEXT
-       docker build . --file Dockerfile --tag $IMAGE_NAME:$(date +%s)
+      - uses: actions/checkout@v4
+      - name: Build the Docker image
+        run: |
+          cd $CONTEXT
+          docker build . --file Dockerfile --tag $IMAGE_NAME:$VERSION
+
+      - name: Log in to registry
+        run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u token --password-stdin
+
+      - name: Push image to ghcr.io
+        run: |
+          image_id=ghcr.io/${{ github.repository_owner }}/$IMAGE_NAME
+          # repository name must be lowercase
+          image_id=$(echo $image_id | tr '[A-Z]' '[a-z]')
+          docker tag $IMAGE_NAME:$VERSION $image_id:$VERSION
+          docker push $image_id:$VERSION