Remove tag 'master' (#12228)

* Remove tag master

Following it's deprecation in 4b324cb0f (Rename master to control plane
- non-breaking changes only (#11394), 2024-09-06)

* Add fail fast path when using removed tags

- Used for the master tag, but this could be used for other things in
  the future

roles/etcd/tasks/main.yml

@@ -39,7 +39,6 @@
     - kube_network_plugin != "calico" or calico_datastore == "etcd"
     - ('k8s_cluster' in group_names)
   tags:
-    - master    # master tag is deprecated and replaced by control-plane
     - control-plane
     - network
 
@@ -51,7 +50,6 @@
     - kube_network_plugin != "calico" or calico_datastore == "etcd"
     - ('k8s_cluster' in group_names)
   tags:
-    - master    # master tag is deprecated and replaced by control-plane
     - control-plane
     - network
 

roles/kubernetes/preinstall/tasks/0050-create_directories.yml

@@ -14,7 +14,6 @@
     - bootstrap_os
     - apps
     - network
-    - master    # master tag is deprecated and replaced by control-plane
     - control-plane
     - node
   with_items:
@@ -38,7 +37,6 @@
     - bootstrap_os
     - apps
     - network
-    - master    # master tag is deprecated and replaced by control-plane
     - control-plane
     - node
   with_items:

roles/validate_inventory/tasks/main.yml

@@ -1,7 +1,19 @@
 ---
-# This should only contains check of the inventory itself, nothing depending on facts
+# This should only contains check of:
+# - the inventory
+# - extra variables
+# - ansible commandline
+# -> nothing depending on facts or similar cluster state
 # Checks depending on current state (of the nodes or the cluster)
 # should be in roles/kubernetes/preinstall/tasks/0040-verify-settings.yml
+- name: Stop if removed tags are used
+  assert:
+    msg: The tag 'master' is removed. Use 'control-plane' instead
+    that:
+      - ('master' not in ansible_run_tags)
+      - ('master' not in ansible_skip_tags)
+        # TODO: Remove checks after next release
+
 - name: Stop if kube_control_plane group is empty
   assert:
     that: groups.get( 'kube_control_plane' )