fix(etcd): default etcd_secret_changed to false (#13691)

etcd_secret_changed is only set by check_certs.yml, which runs only
when cert_management is "script". With cert_management set to "none",
the "Restart etcd if certs changed" tasks fail because the variable is
undefined.

Signed-off-by: Luca Marsella <marsluca7@gmail.com>

roles/etcd/tasks/check_certs.yml

@@ -8,11 +8,10 @@
   register: etcdcert_master
   run_once: true
 
-- name: "Check_certs | Set default value for 'sync_certs', 'gen_certs' and 'etcd_secret_changed' to false"
+- name: "Check_certs | Set default value for 'sync_certs' and 'gen_certs' to false"
   set_fact:
     sync_certs: false
     gen_certs: false
-    etcd_secret_changed: false
     etcd_member_requires_sync: false
     kubernetes_host_requires_sync: false
 

roles/etcd/tasks/main.yml

@@ -1,4 +1,8 @@
 ---
+- name: Set default value for 'etcd_secret_changed' to false
+  set_fact:
+    etcd_secret_changed: false
+
 - name: Check etcd certs
   include_tasks: check_certs.yml
   when: cert_management == "script"