Try login and push

Author: coretl

.github/workflows/ci.yml

@@ -27,28 +27,35 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
+      - name: Log in to GitHub Docker Registry
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata for publishing image
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ghcr.io/${{ github.repository }}
+
       - name: Build and export to Docker local cache
         uses: docker/build-push-action@v6
         with:
-          platforms: linux/${{ matrix.arch }}
           # Need load and tags so we can test it below
           load: true
           tags: tag_for_testing
 
       - name: Test cli works in cached runtime image
         run: docker run --rm tag_for_testing uvx pycowsay 'hello ubuntu-devcontainer!'
 
-      - name: Create tags for publishing image
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: ghcr.io/${{ github.repository }}
-
       - name: Build and push by digest
         id: build
+        # if: github.ref_type == 'tag'
         uses: docker/build-push-action@v6
         with:
-          platforms: linux/${{ matrix.arch }}
           labels: ${{ steps.meta.outputs.labels }}
           outputs: type=image,push-by-digest=true,name-canonical=true,push=true