Publish container packages only for published releases

.github/workflows/docker-publish.yml

@@ -1,12 +1,8 @@
 name: Build and Publish Container Image
 
 on:
-  push:
-    branches: [ main ]
-    tags: [ 'v*' ]
   release:
     types: [ published ]
-  workflow_dispatch:
 
 jobs:
   build-and-push:
@@ -18,6 +14,8 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.release.tag_name }}
 
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
@@ -37,12 +35,11 @@ jobs:
         uses: docker/metadata-action@v5
         with:
           images: ghcr.io/${{ github.repository_owner }}/nodecast-tv
+          flavor: latest=false
           tags: |
             type=semver,pattern={{version}}
-            type=semver,pattern={{major}}.{{minor}}
-            type=sha
-            type=ref,event=branch
-            type=raw,value=latest,enable={{is_default_branch}}
+            type=semver,pattern={{major}}.{{minor}},enable=${{ !github.event.release.prerelease }}
+            type=raw,value=latest,enable=${{ !github.event.release.prerelease }}
 
       - name: Build and push Container image
         uses: docker/build-push-action@v5