Create a key pair before you create a container cluster. Key pairs are used for identity authentication at the time of node login.
If you have already created a key pair, you will never need to create it again.
For more information about how to create a key pair, choose Help Center > Elastic Cloud Server > User Guide > Configurations > Creating a Key Pair on the management console.
The key pair name must be 1 to 64 characters long. Only letters, digits, hyphens (-), and underscores (_) are allowed.
A key file in the .pem format is generated and saved to the default directory on your local computer.