update workflow

.github/workflows/publish.yml

@@ -1,12 +1,11 @@
-name: Build & Publish Image
+name: Create Release & Publish Image
 
 on:
-  release:
-    types: [published]
-
-env:
-  REGISTRY: ghcr.io
-  IMAGE_NAME: ${{ github.repository }}
+  push:
+    branches:
+      - 'main'
+    tags:
+      - 'v*'
 
 jobs:
   build:
@@ -16,7 +15,7 @@ jobs:
       packages: write
 
     steps:
-      - name: Checkout repository
+      - name: Checkout
         uses: actions/checkout@v3
 
       - name: Log in to the Container registry
@@ -26,16 +25,19 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Extract metadata for Docker
+      - name: Extract Docker metadata
         id: meta
-        uses: docker/metadata-action@9ec57ed1fcdbf14dcef7dfbe97b2010124a938b7
+        uses: docker/metadata-action@v4
         with:
-          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          images: ghcr.io/texm/shokku
+        tags: |
+          type=ref,event=branch
+          type=semver,pattern={{raw}}
 
       - name: Build and push Docker image
         uses: docker/build-push-action@f2a1d5e99d037542a71f64918e516c093c6f3fc4
         with:
           context: .
-          push: true
+          push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}