update workflow to push only on new release

.github/workflows/docker-publish.yml

@@ -3,17 +3,61 @@ name: Docker
 on:
   push:
     branches: ["master"]
-    # Publish semver tags as releases.
-    tags: ["v*.*.*"]
   pull_request:
     branches: ["master"]
+  release:
+    types: [published]
 
 env:
   REGISTRY: ghcr.io
   IMAGE_NAME: getstream/tikv-ui
 
 jobs:
   build:
+    # Build only for pushes/PRs, never for release
+    if: github.event_name != 'release'
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+      id-token: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      # Set up QEMU for multi-arch builds
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Extract Docker metadata (non-release)
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+
+      - name: Build Docker image (no push)
+        id: build
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64
+          push: false
+          load: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+  release:
+    # Only run when a GitHub Release is published
+    if: github.event_name == 'release'
     runs-on: ubuntu-latest
     permissions:
       contents: read
@@ -25,7 +69,6 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install cosign
-        if: github.event_name != 'pull_request'
         uses: sigstore/[email protected]
         with:
           cosign-release: "v2.2.4"
@@ -38,39 +81,36 @@ jobs:
         uses: docker/setup-buildx-action@v3
 
       - name: Log into registry ${{ env.REGISTRY }}
-        if: github.event_name != 'pull_request'
         uses: docker/login-action@v3
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Extract Docker metadata
+      - name: Extract Docker metadata (release)
         id: meta
         uses: docker/metadata-action@v5
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           tags: |
-            type=ref,event=branch
-            type=ref,event=pr
             type=semver,pattern={{version}}
             type=semver,pattern={{major}}.{{minor}}
-            type=raw,value=latest,enable={{is_default_branch}}
+            type=semver,pattern={{major}}
+            type=raw,value=latest
 
       - name: Build and push Docker image
         id: build-and-push
         uses: docker/build-push-action@v5
         with:
           context: .
           platforms: linux/amd64,linux/arm64
-          push: ${{ github.event_name != 'pull_request' }}
+          push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           cache-from: type=gha
           cache-to: type=gha,mode=max
 
       - name: Sign the published Docker image
-        if: ${{ github.event_name != 'pull_request' }}
         env:
           TAGS: ${{ steps.meta.outputs.tags }}
           DIGEST: ${{ steps.build-and-push.outputs.digest }}