Comment 3 for bug 1685810

Validated xenial
$ ref=$release-proposed
$ lxc image export $ref .
Output is in a3a030aa025bbef0827529a551839f89aabf6e08446f58cf070cbcaa91dd24e8.tar.gz
$ imagefile=`ls -tr *gz | tail -n 1`
$ mkdir $ref; cd $ref; tar -zxvf ../$imagefile; cd rootfs; tar zcvf /tmp/$ref.tar.gz *;
$ openstack image create --disk-format raw --container-format bare --file /tmp/$ref.tar.gz bbsw/$ref.tar.gz
+------------------+----------------------------------------------------------------------------------------------------------------------------------------------------+
| Field | Value |
+------------------+----------------------------------------------------------------------------------------------------------------------------------------------------+
| checksum | e957defc94e8f9dcea4a725fbdb4f0cb |
| container_format | bare |
| created_at | 2017-05-10T20:36:11Z |
| disk_format | raw |
| file | /v2/images/c87896c7-1a9b-49a6-8ce5-bb7aca11a245/file |
| id | c87896c7-1a9b-49a6-8ce5-bb7aca11a245 |
| min_disk | 0 |
| min_ram | 0 |
| name | bbsw/xenial-proposed.tar.gz |
| owner | e0eb2d253881491abf92bd522bba9f32 |
| properties | direct_url='rbd://9f63f914-1ae6-11e7-922d-00163e397f92/glance/c87896c7-1a9b-49a6-8ce5-bb7aca11a245/snap', locations='[{'url': |
| | 'rbd://9f63f914-1ae6-11e7-922d-00163e397f92/glance/c87896c7-1a9b-49a6-8ce5-bb7aca11a245/snap', 'metadata': {}}]' |
| protected | False |
| schema | /v2/schemas/image |
| size | 240818892 |
| status | active |
| tags | |
| updated_at | 2017-05-10T20:36:21Z |
| virtual_size | None |
| visibility | shared |
+------------------+----------------------------------------------------------------------------------------------------------------------------------------------------+

$ openstack server create --image bbsw/$ref.tar.gz --flavor=m1.tiny lxd-$release --key-name=chad.smith
+-----------------------------+--------------------------------------------------------------------+
| Field | Value |
+-----------------------------+--------------------------------------------------------------------+
| OS-DCF:diskConfig | MANUAL |
| OS-EXT-AZ:availability_zone | |
| OS-EXT-STS:power_state | NOSTATE |
| OS-EXT-STS:task_state | scheduling |
| OS-EXT-STS:vm_state | building |
| OS-SRV-USG:launched_at | None |
| OS-SRV-USG:terminated_at | None |
| accessIPv4 | |
| accessIPv6 | |
| addresses | |
| adminPass | 2eQGTvtETZhy |
| config_drive | |
| created | 2017-05-10T20:45:40Z |
| flavor | m1.tiny (1) |
| hostId | |
| id | ec648691-f3ed-4327-9c4a-214cc4e8c5cc |
| image | bbsw/xenial-proposed.tar.gz (c87896c7-1a9b-49a6-8ce5-bb7aca11a245) |
| key_name | chad.smith |
| name | lxd-xenial |
| progress | 0 |
| project_id | e0eb2d253881491abf92bd522bba9f32 |
| properties | |
| security_groups | name='default' |
| status | BUILD |
| updated | 2017-05-10T20:45:39Z |
| user_id | e36bd0f6e5dd41769a80c8e51dc8f894 |
| volumes_attached | |
+-----------------------------+--------------------------------------------------------------------+

$ nova floating-ip-create;
...
+--------------------------------------+----------------+-----------+----------+---------+
| Id | IP | Server Id | Fixed IP | Pool |
+--------------------------------------+----------------+-----------+----------+---------+
| a6e178c6-176f-4f87-bfa1-78009dec0bfa | 10.245.162.145 | - | - | ext_net |
+--------------------------------------+----------------+-----------+----------+---------+
$ nova floating-ip-associate lxd-$release 10.245.162.145

$ ssh ubuntu@10.245.162.145 dpkg -l | grep cloud-init
ii cloud-init 0.7.9-113-g513e99e0-0ubuntu1~16.04.1 all Init scripts for cloud instances

$ ssh ubuntu@10.245.162.145
Welcome to Ubuntu 16.04.2 LTS (GNU/Linux 4.4.0-72-generic x86_64)
...
Last login: Wed May 10 20:48:40 2017 from 10.245.162.107
To run a command as administrator (user "root"), use "sudo <command>".
See "man sudo_root" for details.

ubuntu@lxd-xenial:~$
#### Success: No warning anymore about undiscovered openstack datasource on login

ubuntu@lxd-xenial:~$ grep Found /run/cloud-init/ds-identify.log
Found single datasource: OpenStack