Ruby-LXC
Introduction
Ruby-LXC is a Ruby binding for liblxc. It allows the creation and management of Linux Containers from Ruby scripts.
Build and installation
Assuming a current installation of LXC is available, to install Ruby-LXC simply run the commands below
sudo apt-get install ruby-dev lxc-dev
bundle install
bundle exec rake compile
bundle exec rake gem
gem install pkg/ruby-lxc-1.2.0.gemor just add this to your Gemfile
gem "ruby-lxc", github: "lxc/ruby-lxc", require: "lxc"Usage
- Container lifecycle management (create, start, stop and destroy containers)
require 'lxc'
c = LXC::Container.new('foo')
c.create('ubuntu') # create a container named foo with ubuntu template
c.start
# attach to a running container
c.attach do
LXC.run_command('ifconfig eth0')
end
c.stop
c.destroy- Container inspection
c.name
c.config_path
c.config_item('lxc.cap.drop')
c.cgroup_item('memory.limit_in_bytes')
c.init_pid
c.interfaces
c.ip_addresses
c.state- Additional state changing operations (freezing, unfreezing and cloning containers)
c.freeze
c.unfreeze
c.reboot
c.shutdown- Clone a container
# clone foo into bar. Parent container has to be frozen or stopped.
clone = c.clone('bar')- Wait for a state change
# wait until container goes to STOPPED state, else timeout after 10 seconds
c.wait(:stopped, 10)Check the provided rdoc documentation for a full list of methods. You can generate it running
rake rdoc