Purpose

These scripts are useful to manage your own server, with several Linux containers.

Installation

• Either clone this code repository: cd ~; git clone https://github.com/tpokorra/lxd-scripts.git scripts
• You need to install these dependencies:

# For Ubuntu:
apt-get install snapd
snap install lxd
apt-get install lxc-utils cgroup-lite python3-lxc bsdmainutils cron patch debootstrap

# For Fedora:
dnf install lxd lxd-client lxc-utils gpg libvirt tar rsync net-tools debootstrap crontabs

• Or install a package from LBS: https://lbs.solidcharity.com/package/tpokorra/lbs/lxd-scripts
• There is a lxd-scripts package for Ubuntu 18.04 (Bionic) and Ubuntu 20.04 (Focal), and latest Fedora, with instructions how to install the package
• To make things easier, I usually create a symbolic link: cd ~; ln -s /usr/share/lxd-scripts scripts

After installing the package, run these scripts for initializing the firewall and LXD:

/usr/share/lxd-scripts/initLXD.sh
/usr/share/lxd-scripts/initIPTables.sh

CheatSheet for my LXD scripts

• Initialise the host IPTables so that they will be survive a reboot: ~/scripts/initIPTables.sh
• Setup of LXD, and create ssh keys: ~/scripts/initLXD.sh
• Create a container (with networking etc): ~/scripts/initFedora.sh $name $id
• Call the script without parameters to see additional parameters, eg to specify the version of the OS etc: ~/scripts/initFedora.sh
• There are scripts for creating Fedora, CentOS, Debian, and Ubuntu containers
• Containers are created in /var/lib/lxd/containers/$name, see the directory rootfs
• or with the LXD snap, see /var/snap/lxd/common/lxd/storage-pools/default/containers/
• Start a container: lxc start $name
• Start a container with console: lxc console $name
• Attach to the container: lxc exec $name -- /bin/bash
• Stop a container: lxc stop $name
• Destroy a container: lxc delete $name
• Enable Auto-start for a container: lxc config set $name boot.autostart true
• List all containers, with running state and IP address: lxc list
• alternatively, there is this script: ~/scripts/listcontainers.sh
• this also shows the OS of the container
• ~/scripts/listcontainers.sh running: shows only running containers
• ~/scripts/listcontainers.sh stopped: shows only stopped containers
• Stop all containers: ~/scripts/stopall.sh
• Take a snapshot of a container: lxc snapshot $name clean
• Restore a snapshot of a container: lxc restore $name clean