[lxc-users] Nova-lxd plugin installation

[Martin Bobák]

Hi Alex,

meanwhile I tested the plugin with different configurations. I got 
following results (Charms create 1st configuration):

"Global configuration"
PyLXD is pre-installed from GitHub however, it is downgraded from 
version 2.2.8.dev21 to version 2.2.7 during a plugin 
installation/configuration.
Nova-lxd is installed during OpenStack installation/configuration from a 
dedicated stable branch.
The installation script of devstack used Python 2.7 and pip 9.0.3

Nova-lxd version:
     OpenStack Queens:    17.0.1 (stable/queens)
     OpenStack Rocky:       18.0.0 (stable/rocky), 18.0.0.0rc2.dev1 
(master -> used for zfs with LXD/LXC 3.0.1)

--------------------------------------------------------------------------------------------------------------------------------------------------
Host OS            OpenStack    LXD/LXC        Storage    type Nova-lxd 
Recognized    Notes
--------------------------------------------------------------------------------------------------------------------------------------------------
Ubuntu 16.04.5 LST    Queens        2.0.11        Dir Yes        Volume 
attachment error
Ubuntu 16.04.5 LST    Queens        2.0.11        zfs Yes        Volume 
attachment error
___________________________________________________________________________________________
Ubuntu 16.04.5 LST    Queens        3.0.1        zfs            No 
(couldn't find the lxd storage from its zpool)
Ubuntu 16.04.5 LST    Queens        3.0.1        btrfs Yes        VM 
creation error
Ubuntu 16.04.5 LST    Queens        3.0.1        dir Yes        VM 
creation error
Ubuntu 16.04.5 LST    Queens        3.0.1        lvm (without thin)    
Yes        VM creation error
___________________________________________________________________________________________
Ubuntu 16.04.5 LST    Rocky        2.0.11        Dir Yes        Volume 
attachment error
Ubuntu 16.04.5 LST    Rocky        2.0.11        zfs        No -> zpool 
list -o size -H -p lxd ---> invalid option 'p'!!!
Ubuntu 16.04.5 LST    Rocky        3.0.1          zfs No (couldn't find 
the lxd storage from its zpool)
Ubuntu 16.04.5 LST    Rocky        3.0.1          btrfs Yes        VM 
creation error
___________________________________________________________________________________________

Ubuntu 18.04.1 LTS    Rocky        3.0.1        btrfs Yes        VM 
creation error
Ubuntu 18.04.1 LTS    Rocky        3.0.1        zfs            No 
(couldn't find the lxd storage from its zpool)
___________________________________________________________________________________________
Ubuntu (both versions)    both        Snap version    LXD/LXC isn't 
recognized by OpenStack devstack installation script/nova-lxd
--------------------------------------------------------------------------------------------------------------------------------------------------

Does it correlate with the reality, or am I missing something? Is there 
a possibility to get LXD 3.X into OpenStack?

Also, I have following questions:

  * How do you recommend to install the plugin into running OpenStack
    installation?
  * What is needed to be done after plugin modification?
  * How could I verify a correctness of the path to the driver (the
    installation sets it up to driver.LXDDRiver)
  * How could I upgrade nova-lxd plugin (since it is installed by pip,
    the maintenance isn't handled automatically)?

Best,
Martin.

-- 
  Martin Bobák, PhD.
  Researcher
  Institute of Informatics
  Slovak Academy of Sciences
  Dubravska cesta 9, SK-845 07 Bratislava, Slovakia
  Room: 311, Phone: +421 (0)2 5941-1278
  E-mail: martin.bobak at savba.sk
  URL: http://www.ui.sav.sk/w/odd/pdip/
  LinkedIn: https://www.linkedin.com/in/martin-bobak/

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