Add kubeadm option to etcd_deployment_type to replace the etcd_kubeadm_enabled variable (#8317)

* Add kubeadm option to etcd_deployment_type to replace the etcd_kubeadm_enabled variable

Signed-off-by: necatican <necaticanyildirim@gmail.com>

* Add etcd kubeadm deployment documentation

Signed-off-by: necatican <necaticanyildirim@gmail.com>

* Refactor warning for the deprecated 'etcd_kubeadm_enabled' variable

Signed-off-by: necatican <necaticanyildirim@gmail.com>

roles/kubernetes/control-plane/tasks/kubeadm-etcd.yml

@@ -15,4 +15,4 @@
 - name: Ensure etcdctl script is installed
   import_role:
     name: etcdctl
-  when: etcd_kubeadm_enabled
+  when: etcd_deployment_type == "kubeadm"

roles/kubernetes/control-plane/tasks/kubeadm-fix-apiserver.yml

@@ -21,4 +21,4 @@
     dest: "{{ kube_config_dir }}/manifests/kube-apiserver.yaml"
     regexp: '^    - --etcd-servers='
     line: '    - --etcd-servers={{ etcd_access_addresses }}'
-  when: not etcd_kubeadm_enabled | default(false)
+  when: etcd_deployment_type != "kubeadm"

roles/kubernetes/control-plane/tasks/kubeadm-upgrade.yml

@@ -18,7 +18,7 @@
     --config={{ kube_config_dir }}/kubeadm-config.yaml
     --ignore-preflight-errors=all
     --allow-experimental-upgrades
-    --etcd-upgrade={{ etcd_kubeadm_enabled | bool | lower }}
+    --etcd-upgrade={{ etcd_deployment_type == "kubeadm" | bool | lower }}
     --force
   register: kubeadm_upgrade
   # Retry is because upload config sometimes fails
@@ -39,7 +39,7 @@
     --config={{ kube_config_dir }}/kubeadm-config.yaml
     --ignore-preflight-errors=all
     --allow-experimental-upgrades
-    --etcd-upgrade={{ etcd_kubeadm_enabled | bool | lower }}
+    --etcd-upgrade={{ etcd_deployment_type == "kubeadm" | bool | lower }}
     --force
   register: kubeadm_upgrade
   when: inventory_hostname != first_kube_control_plane

roles/kubernetes/control-plane/tasks/main.yml

@@ -69,7 +69,7 @@
 
 - name: Include kubeadm etcd extra tasks
   include_tasks: kubeadm-etcd.yml
-  when: etcd_kubeadm_enabled
+  when: etcd_deployment_type == "kubeadm"
 
 - name: Include kubeadm secondary server apiserver fixes
   include_tasks: kubeadm-fix-apiserver.yml