[feature request] implement native ssh '-i' option

[Peter Matulis]

Currently (2.3), in order for a non-controller-admin Juju user to connect to a machine via SSH the person must either:

 - rename their private key (corresponding to the public one added with `juju add-ssh-key`) to `id_rsa`
 - add their private key to ssh-agent (`ssh-add`). Note that if ssh-agent is not running then starting it is not obvious to many

This can all be done away with if Juju implemented the expected behaviour: to be able to specify a key like you can with the native SSH client:

`juju ssh -i ~/.ssh/mykey-id_rsa <machine #>`

[John A Meinel (jameinel)]

I believe we pass all options on to ssh that trail the initial request. So
I *think* that:
juju ssh 0 -i ~/.ssh/mykey

is likely to work as you want.

On Fri, Sep 22, 2017 at 12:32 AM, Peter Matulis <<email address hidden>
> wrote:

> Public bug reported:
>
> Currently (2.3), in order for a non-controller-admin Juju user to
> connect to a machine via SSH the person must either:
>
> - rename their private key (corresponding to the public one added with
> `juju add-ssh-key`) to `id_rsa`
> - add their private key to ssh-agent (`ssh-add`). Note that if ssh-agent
> is not running then starting it is not obvious to many
>
> This can all be done away with if Juju implemented the expected
> behaviour: to be able to specify a key like you can with the native SSH
> client:
>
> `juju ssh -i ~/.ssh/mykey-id_rsa <machine #>`
>
> ** Affects: juju
> Importance: Undecided
> Status: New
>
>
> ** Tags: docteam
>
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> https://bugs.launchpad.net/bugs/1718775
>
> Title:
> [feature request] implement native ssh '-i' option
>
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[Peter Matulis (petermatulis)]

ZOMG it works.

I can update the Juju user guide but someone else needs to update the CLI help.

$ juju help ssh Usage: juju ssh [options] <[user@]target> [command]

to

Usage: juju ssh [options] <[user@]target> [ssh options] [command]

[Anastasia (anastasia-macmood)]

The command line in help is generated.

Nonetheless, I have added a small paragraph mentioning standard ssh option in a similar fashion to how 'juju scp' mentions standard scp options.

PR against develop (2.3): https://github.com/juju/juju/pull/7901