Add manual trigger for action

Author: martenrichter

.github/workflows/docker-publish.yml

@@ -6,12 +6,22 @@ name: Publish container
 # documentation.
 
 on:
+  schedule:
+    - cron: '30 3,12 * * *'
   push:
     branches: [ $default-branch ]
     # Publish semver tags as releases.
     tags: [ 'v*.*.*' ]
   pull_request:
     branches: [ $default-branch ]
+  workflow_dispatch:
+    inputs:
+      logLevel:
+        description: 'Log level'     
+        required: true
+        default: 'warning'
+      tags:
+        description: 'Testing the container build mechanism' 
 
 env:
   # Use docker.io for Docker Hub if empty