Merge pull request #11 from axiom-data-science/docker-tags

Generate better Docker tags (main -> latest)

Author: kwilcox

.github/workflows/docker.yml

@@ -5,8 +5,6 @@ on:
     branches:
       - main
   push:
-    branches:
-      - main
   release:
     types:
       - published
@@ -28,7 +26,8 @@ jobs:
           images: |
             axiom/rsync-server
           tags: |
-            type=ref,event=branch
+            type=raw,value=latest,enable=${{ github.ref_name == 'main' }}
+            type=ref,event=branch,enable=${{ github.ref_name != 'main' }}
             type=ref,event=tag
 
       - name: Set up QEMU