Prevent "unknown" architectures

.github/workflows/publish.yml

@@ -71,6 +71,8 @@ jobs:
         if: github.event_name == 'workflow_dispatch' || (github.event_name != 'pull_request' && steps.checkchanged.outputs.CHANGED != 'false')
         with:
           context: .
+          # Prevent "unknown" platforms: https://github.com/docker/build-push-action/issues/820
+          provenance: false
           platforms: linux/amd64,linux/arm64,linux/arm/v7
           push: ${{ github.event_name != 'pull_request' }}
           tags: |

README.md

@@ -4,7 +4,7 @@ This is a bare Samba Docker image giving you just the raw Samba server and a sim
 
 Note: Most existing Samba Docker images allow creating users and setting smb.conf values via environment variables or via a custom YAML based config system. This Docker image takes a more direct approach. You have to set up your own smb.conf (or extend the default) and you have to configure users with a normal shell script.
 
-The CI automatically checks for updates (e.g. security fixes) several times daily and publishes a new image only when necessary. So, this image could be used with podman-auto-update or Watchtower.
+The CI automatically checks for updates (e.g. security fixes) several times per day and publishes a new image only when necessary. So, this image could be used with podman-auto-update or Watchtower.
 
 ## Defaults