LXD server

The intension of these vagrant boxes is to setup a lxd server where lxc clients can get there images from. With the help of Stephan Graber https://github.com/lxc/lxd/issues/1581 I setup this little playground.

Prerequisites

Install vagrant: https://www.vagrantup.com/downloads.html Install virtualbox: https://www.virtualbox.org/wiki/Downloads Install landrush vagrant plugin: vagrant plugin install landrush

Getting started

vagrant up --provider virtualbox --provision

After some time (grabbing Ubuntu virtual box) you should be able to have both client and server automatically configured. Notice: select the appropriate interface to bridge if vagrant ask.

lxcserver: 192.168.33.8:8443 fqdn: lxcserver.vagrant.test

lxcclient: 192.168.33.9 fqdn: lxcclient.vagrant.test

Provision

both provision scripts do the basic installation and configuration of lxd on both server and client side. have a look at the script for more information.

Playing around

use vagrant ssh lxcclient in order to ssh to the client box.

Important Note: Speeding up, you can run the /vagrant/create-lxc-image.sh script on the [lxcclient] and skip 1-3 steps.

1. [lxcclient] create a jessie 64 bit container

sudo MIRROR=http://httpredir.debian.org/debian lxc-create -n jessie64 -t debian -- -r jessie -a amd64

2. [lxcclient] add some metadata

sudo bash -c 'cat << EOF > /var/lib/lxc/jessie64/metadata.yaml
{
    "architecture": "x86_64",
    "creation_date": 1455748920,
    "properties": {
        "architecture": "x86_64",
        "description": "debian jessie x86_64 (default) (20160217_22:42)",
        "name": "debian-jessie-x86_64-default-20160217_22:42",
        "os": "debian",
        "release": "jessie",
        "variant": "default"
    },
    "templates": {
        "/etc/hostname": {
            "template": "hostname.tpl",
            "when": [
                "create"
            ]
        },
        "/etc/hosts": {
            "template": "hosts.tpl",
            "when": [
                "create"
            ]
        }
    }
}
EOF'

let's create the templates

sudo bash -c "mkdir -p /var/lib/lxc/jessie64/templates && echo '{{ container.name }}' > /var/lib/lxc/jessie64/templates/hostname.tpl"
sudo bash -c 'cat << EOF > /var/lib/lxc/jessie64/templates/hosts.tpl
127.0.0.1   localhost
127.0.1.1   {{ container.name }}

# The following lines are desirable for IPv6 capable hosts
::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
EOF'

3. [lxcclient] package the lxc to an lxd image

sudo bash -c 'cd /var/lib/lxc/jessie64/ && tar caf /tmp/jessie64.tar.xz * && chown ubuntu:ubuntu /tmp/jessie64.tar.xz'

4. [lxcclient] add lxd server as remote

lxc remote add mylxd 192.168.33.8 --accept-certificate --password=unsecret
# or
lxc remote add mylxd lxcserver.vagrant.test --accept-certificate --password=unsecret

5. [lxcclient] import the jessie64 tarball to the local image store

lxc image import /tmp/jessie64*.tar.xz --alias jessie64 --public
lxc image list

5.1) [lxcclient] import the jessie64 tarball to the remote image store

lxc image import /tmp/jessie64*.tar.xz mylxd: --alias jessie64 --public

6. [lxcclient] copy image to the server

Note: This is optional if you used executed the 5.1 step

lxc image copy jessie64 mylxd: --copy-aliases --public
lxc image list mylxd:

7. [lxcclient] remove local image

lxc image delete jessie64
lxc image copy mylxd:jessie64 local: --copy-aliases
lxc image list

8. [lxcclient] create new container from image

lxc launch jessie64 mylxc

9. [lxcclient] execute bash in container

lxc exec mylxc /bin/bash

The End!