Add-Machine does not support non-standard ssh port

[Charles Butler]

This probably bleeds over into other environments as well, but i have personally confirmed this to be the case in a manual provider environment (using the do plugin)

The add-machine command does not appear to accept a non-standard ssh port in the stanza to add a machine:

$ juju add-machine ssh:root@104.131.121.181 -p 8888
error: flag provided but not defined: -p
$ juju add-machine ssh:root@104.131.121.181 --port 8888
error: flag provided but not defined: --port
$ juju add-machine ssh:root@104.131.121.181:8888
ERROR subprocess encountered error code 255 (ssh: Could not resolve hostname 104.131.121.181:8888: Name or service not known)
$ juju add-machine ssh:root@104.131.121.181 8888
error: unrecognized args: ["8888"]

This seems like something we should support unless port 22 is hard coded against all machines, and a base level expectation of the environment.

[Dong Xie (xied75)]

On a related point, "juju bootstrap" does not allow port number too. Very annoying.