Trouble Shooting On Juju's Local Deployment

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When deploying juju, after juju bootstrap, use juju ssh for login, it will hint me:

$ juju ssh 1
......
Permission denied (publickey).

That could be solved by specify the id_rsa.pub key:

$ ssh-keygen -t rsa -b 2048
$ juju bootstrap
$ juju bootstrap
$ juju deploy wordpress
$ juju deploy mysql
$ juju add-relation wordpress mysql
$ juju status
$ juju expose wordpress

By doing this you could make your juju deployment on local successfully.