Diff for "Running/LXC"

Not logged in - Log In / Register

Differences between revisions 19 and 20
Revision 19 as of 2011-06-22 00:25:44
Size: 3301
Editor: lifeless
Comment: more
Revision 20 as of 2011-06-22 01:11:03
Size: 3351
Editor: lifeless
Comment: how to poweroff
Deletions are marked like this. Additions are marked like this.
Line 64: Line 64:
 1. To stop it log in and run 'poweroff -n'.

This page explains how to set up and run Launchpad (for development) inside a LXC.


Launchpad development setup makes significant changes to your machine; its nice to be unaffected by those except when you are actually doing such development.

Also, launchpad has some limitations on concurrent testing per-machine and so forth - multiple container's can be used to work around this.

Make a LXC

  1. Install lxc

sudo apt-get install lxc
  1. Work around 800456

sudo apt-get install cgroup-bin
  1. Work around 784093

sudo dd of=/etc/cgconfig.conf << EOF
mount {
 cpu = /sys/fs//cgroup/cpu;
 cpuacct = /sys/fs/cgroup/cpu;
 devices = /sys/fs/cgroup/cpu;
 memory = /sys/fs/cgroup/cpu;
sudo service cgconfig restart
  1. Create a config for your containers

sudo dd of=/etc/lxc/local.conf << EOF
  1. Create a container

sudo lxc-create -n lucid-test-lp -t lucid -f /etc/lxc/local.conf
  • If you want to use a proxy

sudo http_proxy=http://host:port/ lxc-create -n lucid-test-lp -t lucid -f /etc/lxc/local.conf
  • And if you want to set a custom mirror, similar to http_proxy, but set MIRROR= instead.
  1. Start it

sudo lxc-start -n lucid-test-lp
  • Ignore the warning about openssh crashing - it restarts on a later event. The initial credentials are root:root.
  1. To stop it log in and run 'poweroff -n'.
  2. below this is not yet updated from the vm instructions
  3. After its installed, connect to the image and install acpid and openssh-server

  4. Use ssh-copy-id to copy your public key into the VM.
  5. ssh -A <vm IP address> to connect to the VM.

  6. bzr whoami "Your Name <your.email@example.com>" to set your bzr identity in the VM.

  7. You can now follow the getting-started on LP instructions.


See also this email thread about running Launchpad in a virtual machine, and this discussion of the differences between running in a chroot environment and running a VM. Running/RemoteAccess has a discussion for how you can configure the VM to allow the host machine to access the web pages, etc.


You can skip some manual steps of installing from an ISO using a command like this:

sudo ubuntu-vm-builder  kvm lucid --domain vm --dest ~/vm/lp-dev \
 --hostname lp-dev \
 --mem 2048 --cpus 2 \
 --components main,universe,multiverse,restricted \
 --mirror \
 --libvirt qemu:///system \
 --debug -v \
 --ssh-user-key ~/.ssh/id_rsa.pub --ssh-key ~/.ssh/id_rsa.pub \
 --rootsize 24000 \
 --user $USER

After installation completes, it should show up in your virt-manager menu.


It seems like it would be nice to run Launchpad in LXC containers: they should be more efficient than a VM (especially with regard to memory and disk) but more isolated than a chroot. More testing or documentation is needed.

Running/LXC (last edited 2017-09-22 08:30:24 by cjwatson)