DO server using resource manager can't connect

[George]

The issue means that no valid SSH key can be found to access the server.

So it all depends on how the server was created and where is the SSH key and if it was added to the SSH agent so it can be auto found.

See:

Understanding SSH Keys: Enhancing Server Security and Access Control

Secure Shell (SSH) keys are a critical component of secure server management, access control, and various deployment processes, including Docker deployments. In this article, we’ll explore SSH keys in a broader context and then dive into their importance within Wappler, a platform that facilitates server management and Docker deployments using SSH keys. What are SSH Keys? SSH keys, or Secure Shell keys, are cryptographic credentials used to establish secure and encrypted connections between a…