Comment 1 for bug 1824467

FWIW, even 'juju status --format=yaml' doesn't provide much information as to why it failed:

| "6":
| juju-status:
| current: down
| message: agent is not communicating with the server
| since: 12 Apr 2019 02:07:17Z
| dns-name: 52.230.xxx.xxx
| ip-addresses:
| - 52.230.xxx.xxx
| - 192.168.0.10
| instance-id: machine-6
| machine-status:
| current: provisioning error
| message: Failed
| since: 12 Apr 2019 02:07:17Z
| modification-status:
| current: idle
| since: 12 Apr 2019 02:06:40Z
| series: xenial
| constraints: instance-type=Standard_D2_v2
| hardware: arch=amd64 cores=2 mem=7168M root-disk=30720M