fix: reinstall stale unregistered k3s nodes

ansible/roles/k3s-agent/tasks/main.yml

@@ -25,6 +25,7 @@
         (not k3s_agent_service.stat.exists)
         or ((k3s_agent_service_state.stdout | default('')) != 'active')
         or (k3s_version != 'latest' and k3s_version not in (installed_k3s_version.stdout | default('')))
+        or (not (k3s_node_registered | default(true) | bool))
       }}
 
 - name: Configure k3s registry mirrors

ansible/roles/k3s-server/tasks/main.yml

@@ -25,6 +25,7 @@
         (not k3s_service.stat.exists)
         or ((k3s_service_state.stdout | default('')) != 'active')
         or (k3s_version != 'latest' and k3s_version not in (installed_k3s_version.stdout | default('')))
+        or (not (k3s_node_registered | default(true) | bool))
       }}
 
 - name: Wait for API endpoint on 6443 (secondary only)