Add command to output ~/.ssh/config snippets for accessing machines

[memblin]

As a user of lvlab I need the ability to easily produce a copy paste snippet for what to add to my ~/.ssh/config file to make the virtual machines deployed by lvlab easiy reachable by with the designated SSH key and user provided in the cloud_init configuration.

Examples

(tkc-lvlab-py3.12) laptop01:~/repos/github/memblin/tkc-lvlab-py$ lvlab ssh-config salt.local

Host salt.local
       HostName salt.local
       IdentityFile ~/.ssh/id_ed25519

AC

• The lvlab ssh-config <machine-name> command outputs a snippet that one could paste into a ~/.ssh/config to specify the username, private key path, etc.. for connecting to the machine.
• The lvlab ssh-config command without a machine-name specified should output a ssh-config snippet for all machines.