Getting started¶
Requirements¶
Building nomad on Linux¶
LXD-Nomad should build very easily on Linux provided you have LXD available on your system.
Prerequisite: install LXD¶
You may want to skip this section if you already have a working installation of LXD on your system.
For Debian and Ubuntu, the following command will ensure that LXD is installed:
$ sudo apt-get install lxd
Note
If you’re using an old version of Ubuntu you should first add the LXD’s apt repository and install
the lxd
package as follows:
$ sudo add-apt-repository -y ppa:ubuntu-lxc/lxd-stable
$ sudo apt-get update
$ sudo apt-get install lxd
You should now be able to configure your LXD installation using:
$ newgrp lxd # ensure your current user can use LXD
$ sudo lxd init
Note
The lxd init
command will ask you to choose the settings to apply to your LXD installation in
an interactive way (storage backend, network configuration, etc). But if you just want to go fast
you can try the following commands:
$ newgrp lxd
$ sudo lxd init --auto
$ lxc network create lxdbr0 ipv6.address=none ipv4.address=10.0.3.1/24 ipv4.nat=true
$ lxc network attach-profile lxdbr0 default eth0
You can now check if your LXD installation is working using:
$ lxc launch ubuntu: first-machine && lxc exec first-machine bash
Note
You can use lxc stop first-machine
to stop the previously created container.
Install LXD-Nomad¶
You should now be able to install LXD-Nomad using:
$ pip3 install git+git://github.com/lxd-nomad/lxd-nomad.git
Note
Don’t have pip3
installed on your system? Try this:
$ sudo apt-get install curl
$ curl https://bootstrap.pypa.io/get-pip.py | sudo python3
Command line completion¶
LXD-Nomad can provide completion for commands and container names.
Bash¶
If you use Bash, you have to make sure that bash completion is installed (which should be the case
for most Linux installations). In order to get completion for LXD-Nomad, you should place the
contrib/completion/bash/nomad
file at /etc/bash.completion.d/nomad
(or at any other place
where your distribution keeps completion files):
$ sudo cp contrib/completion/bash/nomad /etc/bash.completion.d/nomad
Make sure to restart your shell before trying to use LXD-Nomad’s bash completion.
ZSH¶
Coming soon!
Your first Nomad file¶
Create a file called .nomad.yml
(or nomad.yml
) in your project directory and paste the
following:
name: myproject
containers:
- name: test01
image: ubuntu/xenial
- name: test02
image: archlinux
This Nomad file defines a project (myproject
) and two containers, test01
and test02
.
These containers will be constructed using respectively the ubuntu/xenial
and the archlinux
images (which will be pulled from an image server - https://images.linuxcontainers.org by default).
Now from your project directory, start up your containers using the following command:
$ nomad up
Bringing container "test01" up
Bringing container "test02" up
==> test01: Unable to find container "test01" for directory "[PATH_TO_YOUR_PROJECT]"
==> test01: Creating new container "myproject-test01-11943450" from image ubuntu/xenial
==> test01: Starting container "test01"...
==> test01: No IP yet, waiting 10 seconds...
==> test01: Container "test01" is up! IP: [CONTAINER_IP]
==> test01: Doing bare bone setup on the machine...
==> test01: Adding ssh-rsa [SSH_KEY] to machine's authorized keys
==> test01: Provisioning container "test01"...
==> test02: Unable to find container "test02" for directory "[PATH_TO_YOUR_PROJECT]"
==> test02: Creating new container "myproject-test02-11943450" from image archlinux
==> test02: Starting container "test02"...
==> test02: No IP yet, waiting 10 seconds...
==> test02: Container "test02" is up! IP: [CONTAINER_IP]
==> test02: Doing bare bone setup on the machine...
==> test02: Adding ssh-rsa [SSH_KEY] to machine's authorized keys
==> test02: Provisioning container "test02"...
Congrats! You’re in!