[Question/Improvement] Pass rsa identity key via command line

[Marcin-Radecki]

Hello,

currently, there is no way to pass to cargo remote via cmd line a path to RSA identity key. This implies the default one (ie in most cases ~/.ssh/id_rsa) is chosen by cargo remote when ssh to a remote server. But sometimes one needs to have the possibility to use a non-default RSA identity file (e.g. user can have more than one such file in ~/.ssh).

Therefore proposed feature would be to add -i <file> cmd line flag to cargo remote and add logic that passes it as -i <file> to ssh under the hood. Also, it'd be nice to have support to add a setting like ident = <path> to cargo-remote.toml file (and cmd line param overwrites it).

Marcin