David Peraza <[email protected]> писал(а) в своём письме Mon,
03 Mar 2014 21:27:01 +0200:
Using compute inside LXC, I created 100 computes per physical host. Here
is what I did, it's very simple:
- Creating a LXC with logical volume
- Installing a fake nova-compute inside the LXC
- Make a booting script that modifies its nova.conf to use its IP
address & starts nova-compute
- Using the LXC above as the master, clone as many compute as you like!
(Note that while cloning the LXC, the nova.conf is copied with the
former's IP address, that's why we need the booting script.)
Also btrfs can be used to reduce disk space usage. Scenario is looks like
this:
* create btrfs filesystem on /var/lib/lxc
* create first container with btrfs backingstore (lxc-create -B btrfs ...)
* setup devstack with fakevirt
* stop container, and make N snapshotted clones (lxc-clone --snapshot ...)
* start containers and run booting script (here script used by Rally [0])
If you do not want to do all this manually, there is
MultihostEngine/LxcEngine
coming soon in Rally [1]
[0]
https://review.openstack.org/#/c/56222/25/rally/deploy/engines/lxc/start.sh
[1] https://wiki.openstack.org/wiki/Rally
--
Regards,
Sergey Skripnick
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