Added option to force apiserver and respective client certificate to … (#6403)

* Added option to force apiserver and respective client certificate to be regenerated without necessarily needing to bump the K8S cluster version

* Removed extra blank line

inventory/sample/group_vars/k8s-cluster/k8s-cluster.yml

@@ -312,3 +312,5 @@ persistent_volumes_enabled: false
 
 ## Amount of time to retain events. (default 1h0m0s)
 event_ttl_duration: "1h0m0s"
+##  Force regeneration of kubernetes control plane certificates without the need of bumping the cluster version
+force_certificate_regeneration: false

roles/kubernetes/master/defaults/main/main.yml

@@ -193,3 +193,5 @@ secrets_encryption_query: "resources[*].providers[0].{{kube_encryption_algorithm
 
 ## Amount of time to retain events. (default 1h0m0s)
 event_ttl_duration: "1h0m0s"
+##  Force regeneration of kubernetes control plane certificates without the need of bumping the cluster version
+force_certificate_regeneration: false

roles/kubernetes/master/tasks/kubeadm-setup.yml

@@ -130,7 +130,7 @@
   when:
     - inventory_hostname == groups['kube-master']|first
     - kubeadm_already_run.stat.exists
-    - apiserver_sans_check.changed
+    - apiserver_sans_check.changed or force_certificate_regeneration
 
 - name: kubeadm | regenerate apiserver cert 2/2
   command: >-
@@ -140,7 +140,7 @@
   when:
     - inventory_hostname == groups['kube-master']|first
     - kubeadm_already_run.stat.exists
-    - apiserver_sans_check.changed
+    - apiserver_sans_check.changed or force_certificate_regeneration
 
 - name: kubeadm | Initialize first master
   command: >-