Diff for "Running/LXC"

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⇤ ← Revision 12 as of 2011-06-21 23:20:39 →
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Comment: start updating
← Revision 17 as of 2011-06-21 23:56:33 → ⇥
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Deletions are marked like this. Additions are marked like this.
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% sudo apt-get install lxc sudo apt-get install lxc
Line 18: Line 18:

 1. Work around Bug:800456
{{{
sudo apt-get install cgroup-bin
}}}

 1. Work around Bug: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;
}
EOF
}}}

 1. Create a container
{{{
sudo lxc-create -n lucid-test-lp -t lucid -f /etc/lxc/basic.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/basic.conf
}}}
    And if you want to set a custom mirror, similar to http_proxy, but set MIRROR= instead.

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

Why?

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;
}
EOF
  1. Create a container 

sudo lxc-create -n lucid-test-lp -t lucid -f /etc/lxc/basic.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/basic.conf
  • And if you want to set a custom mirror, similar to http_proxy, but set MIRROR= instead.
  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 <your.email@example.com>" to set your bzr identity in the VM.

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

References

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.

Alternatively

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 http://10.113.3.35:3142/mirror.internode.on.net/pub/ubuntu/ubuntu \
 --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.

In LXC

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.