Access
SSH keys
Supported public-key formats and direct SSH access.
Accepted keys
Add an OpenSSH public key such as ssh-ed25519, ECDSA, or supported RSA. Private-key blocks are rejected. Duplicate fingerprints cannot be added.
Synchronization and deletion
A key is selectable only after upstream synchronization succeeds. A key used by an active instance cannot be deleted. The last-used timestamp helps identify stale keys.