Difference between revisions of "LXC"

Revision as of 02:50, 10 March 2011

If you want to play with LXC on nova, here is how you do it. Before setting up LXC with nova you have to enable cgroups:

sudo mkdir /cgroup
sudo mount none -t cgroup -o cpuacct,memory,devices,cpu,freezer,blkio  /cgroup

And add to your /etc/fstab

none /cgroup cgroup cpuacct,memory,devices,cpu,freezer,blkio   0 0

Note: You will need to download a newer version of libvirt 0.8.8.

Download the current natty UEC image.
In order to use LXC in nova you have to add "--libvirt-type=lxc" to your config.

Bundle your image as you normally would:

euca-bundle-image -i lxc-natty-amd64.img
euca-upload-bundle -b mybucket -m /tmp/ttylinux-lxc-natty-2.6.38-5.img.manifest.xml
euca-register mybucket/lxc-natty-amd64.img.manifest.xml

If you want to use a normal UEC image with LXC, before bundling it you have to install the lxcguest package:

sudo mount -o loop <image name> <mount point>
sudo mount -o bind /proc <mount point>/proc
sudo cp /etc/resolv.conf <mount point>/etc
sudo chroot <mount point>
apt-get install lxcguest
<exit the chroot>
sudo umount <mount point>/proc
sudo umount <mount point>

@@ Line 5: / Line 5: @@
 <pre><nowiki>
 sudo mkdir /cgroup
-sudo mount none -t cgroup /cgroup
+sudo mount none -t cgroup -o cpuacct,memory,devices,cpu,freezer,blkio  /cgroup
 </nowiki></pre>
@@ Line 12: / Line 12: @@
 <pre><nowiki>
-none /cgroup cgroup defaults 0 0
+none /cgroup cgroup cpuacct,memory,devices,cpu,freezer,blkio   0 0
 </nowiki></pre>
 '''Note: '''You will need to download a newer version of libvirt 0.8.8.
-* Download the ttylinux from [http://people.canonical.com/~chucks/openstack/lxc-natty-amd64.img.tar.gz here.]
+* Download the current natty UEC image.
 * In order to use LXC in nova you have to add "--libvirt-type=lxc" to your config.