Rackspace Private Cloud Container Hosts

Date:	2014-09-25 09:00
tags:	rackspace, lxc, openstack, cloud, ansible
category:	*nix

Official Documentation

Comprehensive installation guides, including FAQs and release notes, can be found at http://docs.rackspace.com

Playbook Support

There are several playbooks within that will setup hosts for use in Rackspace Private Cloud. The playbooks will enable LXC on hosts and provides the ability to deploy LXC containers for use within openstack.

Plays:

• host-setup.yml Performs host setup for use with LXC in the Rackspace Private Cloud. This run the plays lxc-host-setup.yml and lxc-lib-install.yml.
• lxc-host-setup.yml Sets up hosts to run containers.
• lxc-lib-install.yml Installs the required Python2 lxc library.
• containers-create.yml Creates all containers.
• containers-destroy.yml Destroys ALL known containers on ALL defined hosts.

Setup:

1. Run the bootstrap.sh script, which will install, pip, ansible 1.8.x, and all of the required python packages.
2. Copy the etc/opc_deploy directory to /etc/opc_deploy
3. Fill in your /etc/opc_deploy/opc_user_config.yml, /etc/opc_deploy/user_secrets.yml and /etc/opc_deploy/user_variables.yml files.
4. Generate all of your random passwords executing scripts/pw-token-gen.py --file /etc/opc_deploy/user_secrets.yml.
5. Assuming that you have all your networking setup on your host machines move to the playbooks/ directory and execute your desired plays. IE: rpc-ansible setup-everything.yml

Notes

• If you run the bootstrap.sh script a wrapper script will be added to your system that wraps the ansible-playbook command to simplify the arguments required to run rpc ansible plays.
• The lxc network is created within the br-lxc interface. This supports both NAT networks as well as more traditional networking. If NAT is enabled (default) the IPtables rules will be created along with the interface as a post-up processes.
• The tool lxc-system-manage is available on all lxc hosts and can assist in recreating parts of the LXC system whenever its needed.
• Library has an experimental LXC module which adds lxc: support to Ansible. The module within is presently pending in upstream ansible at "ansible/ansible-modules-extras#123"