Overview

A lightweight and secure debugging lib for remote process. Especially useful for debugging a service that you can deploy code to but you don't have direct access to, such as as k8s pod, github workflow, etc.

Features:

• Execute and attach to random CLI command on remote machine.
• Forward socks5 proxy on remote.
• Mount a remote directory to local with NFS.
• Uses the golang.org/x/crypt/ssh to establish secure connections.
• Hub server can be an endpoint of a http server.
• Servant can run behind a firewall.

flowchart LR
    M[Master Client]
    S[Servant Client]

    subgraph Cluster
        H1[Hub Server 01]
        H2[Hub Server 02]
    end

    S ---> H2
    M --> H1
    H1 -- relay --> H2

Because Master and Servant uses public key to communicate, the Hub server can be a untrusted server.