lxc¶

--- Container Lifecycle ---

To list all containers:

lxc-ls --fancy

To create a container from a template

lxc-create -n <name> -t <template>

To start a container

lxc-start -n <name>

To start in foreground (see console output)

lxc-start -n <name> -F

To stop a container

lxc-stop -n <name>

To restart a container

lxc-stop -n <name> && lxc-start -n <name>

To destroy a container

lxc-destroy -n <name>

To clone a container

lxc-copy -n <source> -N <dest>

--- Attaching & Console ---

To attach to a running container (get a shell):

lxc-attach -n <name>

To run a single command inside a container

lxc-attach -n <name> -- <command>

To open the container console

lxc-console -n <name>

To detach from console

Press Ctrl+a then q --- Status & Info --- To check container state:

lxc-info -n <name>

To show container IP address

lxc-info -n <name> -iH

To monitor container state changes

lxc-monitor -n <name>

To view container statistics

lxc-top

--- Configuration ---

Container config file location: /var/lib/lxc//config To set a config option (e.g. memory limit): lxc.cgroup2.memory.max = 512M To set a network interface in config: lxc.net.0.type = veth lxc.net.0.link = lxcbr0 lxc.net.0.flags = up To view running container's cgroup info:

lxc-cgroup -n <name> memory.usage_in_bytes

--- Snapshots ---

To take a snapshot (requires overlay or btrfs):

lxc-snapshot -n <name>

To list snapshots

lxc-snapshot -n <name> -L

To restore a snapshot

lxc-snapshot -n <name> -r <snap-name>

To destroy a snapshot

lxc-snapshot -n <name> -d <snap-name>

--- Networking ---

To list default bridge (lxcbr0) DHCP leases:

cat /var/lib/misc/dnsmasq.lxcbr0.leases

To check if lxcbr0 bridge is up

ip link show lxcbr0