ci: build & push on main

Author: btouchard

.github/workflows/build-docker.yml

@@ -9,6 +9,7 @@ on:
         type: boolean
         default: true
   push:
+    branches: [main]
     tags:
       - "v*"
   pull_request:
@@ -63,13 +64,12 @@ jobs:
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           tags: |
-            type=ref,event=branch
-            type=ref,event=pr
+            type=raw,value=main,enable=${{ github.ref == 'refs/heads/main' }}
+            type=sha,prefix=,format=short,enable=${{ github.ref == 'refs/heads/main' }}
             type=semver,pattern={{version}}
             type=semver,pattern={{major}}.{{minor}}
             type=semver,pattern={{major}}
-            type=sha,prefix={{branch}}-,enable={{is_default_branch}}
-            type=raw,value=latest,enable=${{ github.event_name == 'release' }}
+            type=raw,value=latest,enable=${{ startsWith(github.ref, 'refs/tags/v') }}
 
       - name: Login to GitHub Container Registry
         if: github.event_name != 'pull_request'
@@ -84,7 +84,7 @@ jobs:
         with:
           context: .
           platforms: linux/amd64,linux/arm64
-          push: ${{ github.event_name != 'pull_request' && (inputs.push || startsWith(github.ref, 'refs/tags/v')) }}
+          push: ${{ github.event_name != 'pull_request' && (inputs.push || startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main') }}
           provenance: false
           tags: |
             ${{ steps.meta.outputs.tags }}