Containerized etcd is down after redploying certificates

Issue

• Cluster is down after redeploying the cluster certificates.
• Etcd logs show:

2020-10-18 08:27:30.684291 I | etcdmain: rejected connection from "10.230.90.52:40306" (error "remote error: tls: bad certificate", ServerName "")

• Ansible playbook output shows etcd didn't restart

TASK [etcd : restart etcd] *******************************************************************************************************************************
Sunday 18 October 2020  10:31:03 +0200 (0:00:01.563)       0:01:30.147 ********
fatal: [master1.example.com]: FAILED! => {"changed": true, "cmd": ["systemctl", "restart", "etcd"], "delta": "0:00:00.014950", "end": "2020-10-18 10:31:03.982032", "msg": "non-zero return code", "rc": 1, "start": "2020-10-18 10:31:03.967082", "stderr": "Failed to restart etcd.service: Unit is masked.", "stderr_lines": ["Failed to restart etcd.service: Unit is masked."], "stdout": "", "stdout_lines": []}