worker's locksmith configuration

[cemo]

May 24 18:18:54 ip-10-0-10-193.eu-west-1.compute.internal locksmithd[1759]: Unlocking old locks failed: error setting up lock: Error initializing etcd client: open /etc/kubernetes/ssl/k8s-etcd.pem: no such file or directory. Retrying in 40s.
May 24 18:19:34 ip-10-0-10-193.eu-west-1.compute.internal locksmithd[1759]: Unlocking old locks failed: error setting up lock: Error initializing etcd client: open /etc/kubernetes/ssl/k8s-etcd.pem: no such file or directory. Retrying in 1m20s.
May 24 18:20:54 ip-10-0-10-193.eu-west-1.compute.internal locksmithd[1759]: Unlocking old locks failed: error setting up lock: Error initializing etcd client: open /etc/kubernetes/ssl/k8s-etcd.pem: no such file or directory. Retrying in 2m40s.

Do you think that there is a mistake at https://github.com/kz8s/tack/blob/master/modules/worker/cloud-config.yml#L9-L10 since k8s-worker is used as etcd key.