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Revision 17 as of 2011-06-21 23:56:33

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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;
  1. Create a container

sudo lxc-create -n lucid-test-lp -t lucid -f /etc/lxc/basic.conf

sudo http_proxy=http://host:port/ lxc-create -n lucid-test-lp -t lucid -f /etc/lxc/basic.conf
  1. Download the Lucid server ISO
  2. Run virt-manager.
  3. Double click on localhost(QEMU)
  4. click on the New virtual machine icon
  5. follow your nose here, using the ISO as the install media, and allocating no less than 2G of disk and 1G of memory. I suggest 4G if you can spare it.
  6. After its installed, connect to the image and install acpid and openssh-server

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

  9. bzr whoami "Your Name <>" to set your bzr identity in the VM.

  10. 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/ --ssh-key ~/.ssh/ \
 --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.