173 lines
6.2 KiB
Markdown
173 lines
6.2 KiB
Markdown
# vagrant-lxc [](https://travis-ci.org/fgrehm/vagrant-lxc) [](http://badge.fury.io/rb/vagrant-lxc) [](https://codeclimate.com/github/fgrehm/vagrant-lxc)
|
|
|
|
Experimental Linux Containers support for Vagrant 1.1+
|
|
|
|
|
|
## Dependencies
|
|
|
|
Vagrant 1.1+ (1.1.4+ recommended), `lxc` and `redir` packages and a Kernel [higher than 3.5.0-17.28](#help-im-unable-to-restart-containers),
|
|
which on Ubuntu 12.10 means something like:
|
|
|
|
```
|
|
sudo apt-get update && sudo apt-get dist-upgrade
|
|
sudo apt-get install lxc redir
|
|
wget "http://files.vagrantup.com/packages/87613ec9392d4660ffcb1d5755307136c06af08c/vagrant_`uname -m`.deb" -O /tmp/vagrant.deb
|
|
sudo dpkg -i /tmp/vagrant.deb
|
|
```
|
|
|
|
|
|
## What is currently supported? (v0.2.0)
|
|
|
|
Pretty much everything you need from Vagrant:
|
|
|
|
* Vagrant's `up`, `halt`, `reload`, `destroy`, `ssh` and `package` commands (box packaging is kind of experimental)
|
|
* Shared folders
|
|
* Provisioning
|
|
* Setting container's host name
|
|
* Port forwarding
|
|
|
|
*Please refer to the [closed issues](https://github.com/fgrehm/vagrant-lxc/issues?labels=&milestone=&page=1&state=closed)
|
|
for the most up to date list.*
|
|
|
|
|
|
## Current limitations
|
|
|
|
* Does not detect forwarded ports collision, right now you are responsible for taking care of that
|
|
* A hell lot of `sudo`s
|
|
* Only a [single ubuntu box supported](boxes)
|
|
* "[works on my machine](https://github.com/fgrehm/vagrant-lxc/issues/20)" (TM)
|
|
* [Does not tell you if dependencies are not met](https://github.com/fgrehm/vagrant-lxc/issues/11)
|
|
(will probably just throw up some random error)
|
|
* + bunch of other [core features](https://github.com/fgrehm/vagrant-lxc/issues?labels=core&milestone=&page=1&state=open)
|
|
and some known [bugs](https://github.com/fgrehm/vagrant-lxc/issues?labels=bug&page=1&state=open)
|
|
|
|
|
|
## Usage
|
|
|
|
Make sure you have [Vagrant 1.1+](http://downloads.vagrantup.com/) and run:
|
|
|
|
```
|
|
vagrant plugin install vagrant-lxc
|
|
```
|
|
|
|
After that you can create a `Vagrantfile` like the one below and run `vagrant up --provider=lxc`:
|
|
|
|
```ruby
|
|
Vagrant.configure("2") do |config|
|
|
config.vm.box = "lxc-quantal64"
|
|
config.vm.box_url = 'http://dl.dropbox.com/u/13510779/lxc-quantal64-2013-03-31.box'
|
|
|
|
# Share an additional folder to the guest Container. The first argument
|
|
# is the path on the host to the actual folder. The second argument is
|
|
# the path on the guest to mount the folder. And the optional third
|
|
# argument is a set of non-required options.
|
|
config.vm.synced_folder "/tmp", "/host_tmp"
|
|
|
|
config.vm.provider :lxc do |lxc|
|
|
# Set the folder where container's rootfs will be stored when created
|
|
lxc.target_rootfs_path = '/path/to/container/rootfs'
|
|
# Same as 'customize ["modifyvm", :id, "--memory", "1024"]' for VirtualBox
|
|
lxc.start_opts << 'lxc.cgroup.memory.limit_in_bytes=400M'
|
|
# Limits swap size
|
|
lxc.start_opts << 'lxc.cgroup.memory.memsw.limit_in_bytes=500M'
|
|
end
|
|
|
|
# ... your puppet / chef / shell provisioner configs here ...
|
|
end
|
|
```
|
|
|
|
If you are on a mac or window host and still want to try this plugin out, you
|
|
can use the [same Vagrant VirtualBox machine I use for development](#using-virtualbox-and-vagrant-11-for-development).
|
|
|
|
|
|
## Development
|
|
|
|
If want to develop from your physical machine, just sing that same old song:
|
|
|
|
```
|
|
git clone git://github.com/fgrehm/vagrant-lxc.git --recurse
|
|
cd vagrant-lxc
|
|
bundle install
|
|
bundle exec rake # to run all specs
|
|
```
|
|
|
|
To build the provided quantal64 box:
|
|
|
|
```
|
|
bundle exec rake boxes:quantal64:build
|
|
vagrant box add quantal64 boxes/output/lxc-quantal64.box
|
|
```
|
|
|
|
|
|
### Using `vagrant-lxc` to develop itself
|
|
|
|
Yes! The gem has been [bootstrapped](http://en.wikipedia.org/wiki/Bootstrapping_(compilers)
|
|
and since you can boot a container from within another, after cloning the
|
|
project you can run the commands below from the host machine to get a container
|
|
ready for development:
|
|
|
|
```sh
|
|
# Required in order to allow nested containers to be started
|
|
sudo apt-get install apparmor-utils
|
|
sudo aa-complain /usr/bin/lxc-start
|
|
bundle install
|
|
cd development
|
|
bundle exec vagrant up lxc --provider=lxc
|
|
bundle exec vagrant ssh lxc
|
|
```
|
|
|
|
That should result in a container ready to be `bundle exec vagrant ssh`ed.
|
|
Once you've SSH into the guest container, you'll be already on the project's root.
|
|
Keep in mind that you'll probably need to run `sudo aa-complain /usr/bin/lxc-start`
|
|
on the host whenever you want to hack on it, otherwise you won't be able to
|
|
start nested containers there to try things out.
|
|
|
|
### Using VirtualBox for development
|
|
|
|
```
|
|
cd development
|
|
bundle exec vagrant up vbox
|
|
# A reload is needed to ensure the updated kernel gets loaded
|
|
bundle exec vagrant reload vbox
|
|
bundle exec vagrant ssh vbox
|
|
```
|
|
|
|
|
|
## Protips
|
|
|
|
If you want to find out more about what's going on under the hood on vagrant,
|
|
prepend `VAGRANT_LOG=debug` to your `vagrant` commands. For `lxc-start`s
|
|
debugging set `LXC_START_LOG_FILE`:
|
|
|
|
```
|
|
LXC_START_LOG_FILE=/tmp/lxc-start.log VAGRANT_LOG=debug vagrant up
|
|
```
|
|
|
|
This will output A LOT of information on your terminal and some useful information
|
|
about `lxc-start` to `/tmp/lxc-start.log`.
|
|
|
|
|
|
## Help! I'm unable to restart containers!
|
|
|
|
It happened to me quite a few times in the past and it seems that it is related
|
|
to a bug on linux kernel, so make sure you are using a bug-free kernel
|
|
(>= 3.5.0-17.28). More information can be found on:
|
|
|
|
* https://bugzilla.kernel.org/show_bug.cgi?id=47181
|
|
* https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1021471
|
|
* https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1065434
|
|
|
|
Sometimes the dev boxes I'm using are not able to `lxc-start` containers
|
|
anymore. Most of the times it was an issue with the arguments [I provided](https://github.com/fgrehm/vagrant-lxc/blob/master/example/Vagrantfile#L14-L18)
|
|
to it (or a *buggy* kernel). If you run into that, rollback your changes
|
|
and try to `vagrant reload` the dev box. If it still doesn't work,
|
|
please file a bug at the [issue tracker](https://github.com/fgrehm/vagrant-lxc/issues).
|
|
|
|
|
|
## Contributing
|
|
|
|
1. Fork it
|
|
2. Create your feature branch (`git checkout -b my-new-feature`)
|
|
3. Commit your changes (`git commit -am 'Add some feature'`)
|
|
4. Push to the branch (`git push origin my-new-feature`)
|
|
5. Create new Pull Request
|