Replace kube-master with kube_control_plane (#7256)

This replaces kube-master with kube_control_plane because of [1]:

  The Kubernetes project is moving away from wording that is
  considered offensive. A new working group WG Naming was created
  to track this work, and the word "master" was declared as offensive.
  A proposal was formalized for replacing the word "master" with
  "control plane". This means it should be removed from source code,
  documentation, and user-facing configuration from Kubernetes and
  its sub-projects.

NOTE: The reason why this changes it to kube_control_plane not
      kube-control-plane is for valid group names on ansible.

[1]: https://github.com/kubernetes/enhancements/blob/master/keps/sig-cluster-lifecycle/kubeadm/2067-rename-master-label-taint/README.md#motivation

roles/kubernetes-apps/network_plugin/canal/tasks/main.yml

@@ -8,4 +8,4 @@
     filename: "{{ kube_config_dir }}/{{ item.item.file }}"
     state: "latest"
   with_items: "{{ canal_manifests.results }}"
-  when: inventory_hostname == groups['kube-master'][0] and not item is skipped
+  when: inventory_hostname == groups['kube_control_plane'][0] and not item is skipped

roles/kubernetes-apps/network_plugin/cilium/tasks/main.yml

@@ -8,7 +8,7 @@
     filename: "{{ kube_config_dir }}/{{ item.item.file }}"
     state: "latest"
   with_items: "{{ cilium_node_manifests.results }}"
-  when: inventory_hostname == groups['kube-master'][0] and not item is skipped
+  when: inventory_hostname == groups['kube_control_plane'][0] and not item is skipped
 
 - name: Cilium | Wait for pods to run
   command: "{{ bin_dir }}/kubectl -n kube-system get pods -l k8s-app=cilium -o jsonpath='{.items[?(@.status.containerStatuses[0].ready==false)].metadata.name}'"  # noqa 601
@@ -17,4 +17,4 @@
   retries: 30
   delay: 10
   ignore_errors: yes
-  when: inventory_hostname == groups['kube-master'][0]
+  when: inventory_hostname == groups['kube_control_plane'][0]

roles/kubernetes-apps/network_plugin/flannel/tasks/main.yml

@@ -8,7 +8,7 @@
     filename: "{{ kube_config_dir }}/{{ item.item.file }}"
     state: "latest"
   with_items: "{{ flannel_node_manifests.results }}"
-  when: inventory_hostname == groups['kube-master'][0] and not item is skipped
+  when: inventory_hostname == groups['kube_control_plane'][0] and not item is skipped
 
 - name: Flannel | Wait for flannel subnet.env file presence
   wait_for:

roles/kubernetes-apps/network_plugin/kube-ovn/tasks/main.yml

@@ -6,4 +6,4 @@
     filename: "{{ kube_config_dir }}/{{ item.item.file }}"
     state: "latest"
   with_items: "{{ kube_ovn_node_manifests.results }}"
-  when: inventory_hostname == groups['kube-master'][0] and not item is skipped
+  when: inventory_hostname == groups['kube_control_plane'][0] and not item is skipped

roles/kubernetes-apps/network_plugin/kube-router/tasks/main.yml

@@ -8,7 +8,7 @@
     resource: "ds"
     namespace: "kube-system"
     state: "latest"
-  delegate_to: "{{ groups['kube-master'] | first }}"
+  delegate_to: "{{ groups['kube_control_plane'] | first }}"
   run_once: true
 
 - name: kube-router | Wait for kube-router pods to be ready
@@ -18,6 +18,6 @@
   retries: 30
   delay: 10
   ignore_errors: yes
-  delegate_to: "{{ groups['kube-master'] | first }}"
+  delegate_to: "{{ groups['kube_control_plane'] | first }}"
   run_once: true
   changed_when: false

roles/kubernetes-apps/network_plugin/multus/tasks/main.yml

@@ -8,4 +8,4 @@
     filename: "{{ kube_config_dir }}/{{ item.item.file }}"
     state: "latest"
   with_items: "{{ multus_manifest_1.results }} + {{ multus_manifest_2.results }}"
-  when: inventory_hostname == groups['kube-master'][0] and not item is skipped
+  when: inventory_hostname == groups['kube_control_plane'][0] and not item is skipped

roles/kubernetes-apps/network_plugin/ovn4nfv/tasks/main.yml

@@ -6,4 +6,4 @@
     filename: "{{ kube_config_dir }}/{{ item.item.file }}"
     state: "latest"
   with_items: "{{ ovn4nfv_node_manifests.results }}"
-  when: inventory_hostname == groups['kube-master'][0] and not item is skipped
+  when: inventory_hostname == groups['kube_control_plane'][0] and not item is skipped

roles/kubernetes-apps/network_plugin/weave/tasks/main.yml

@@ -8,7 +8,7 @@
     resource: "ds"
     namespace: "kube-system"
     state: "latest"
-  when: inventory_hostname == groups['kube-master'][0]
+  when: inventory_hostname == groups['kube_control_plane'][0]
 
 - name: Weave | Wait for Weave to become available
   uri:
@@ -18,4 +18,4 @@
   retries: 180
   delay: 5
   until: "weave_status.status == 200 and 'Status: ready' in weave_status.content"
-  when: inventory_hostname == groups['kube-master'][0]
+  when: inventory_hostname == groups['kube_control_plane'][0]