Update CI

Author: Daniel Rataj

.github/workflows/publish.yml

@@ -2,10 +2,6 @@ name: Create a container
 
 on:
   push:
-    # Publish `master` as Docker `latest` image.
-    branches:
-      - master
-
     # Publish `v1.2.3` tags as releases.
     tags:
       - v*
@@ -36,8 +32,8 @@ jobs:
           # Strip "v" prefix from tag name
           [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION | sed -e 's/^v//')
 
-          # Use Docker `latest` tag convention
-          [ "$VERSION" == "master" ] && VERSION=latest
+          # keep only the major.minor release, no patch
+          [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION | sed -e 's/\.[0-9]*$//')
 
           echo IMAGE_ID=$IMAGE_ID
           echo VERSION=$VERSION