Please check if the configured key or specified key file is a valid SSH Private Key - Rancher Kubernetes

Solution next error Rancher on Centos8:

Please check if the configured key or specified key file is a valid SSH Private Key. Error: Error configuring SSH: ssh: no key found


Steps:

WORKSTATION.

Save the key of your nodes on workstation.

Step 1 — Create the RSA Key Pair

ssh-keygen

Enter and enter doesn't write anything.

Step 2 — Copy the Public Key to CentOS Server

ssh-copy-id username@remote_host

Copying Public Key Using SSH

cat ~/.ssh/id_rsa.pub | ssh username@remote_host "mkdir -p ~/.ssh && touch ~/.ssh/authorized_keys && chmod -R go= ~/.ssh && cat >> ~/.ssh/authorized_keys"

Check connect with ssh without password.

References:

https://www.digitalocean.com/community/tutorials/how-to-set-up-ssh-keys-on-centos7