Provided by: netplan.io_0.104-0ubuntu2~20.04.6_amd64 

NAME
netplan-apply - apply configuration from netplan YAML files to a running system
SYNOPSIS
netplan [–debug] apply -h | –help
netplan [–debug] apply
DESCRIPTION
netplan apply applies the current netplan configuration to a running system.
The process works as follows:
1. The backend configuration is generated from netplan YAML files.
2. The appropriate backends (systemd-networkd(8) or NetworkManager(8)) are invoked to bring up configured
interfaces.
3. netplan apply iterates through interfaces that are still down, unbinding them from their drivers, and
rebinding them. This gives udev(7) renaming rules the opportunity to run.
4. If any devices have been rebound, the appropriate backends are re-invoked in case more matches can be
done.
For information about the generation step, see netplan-generate(8). For details of the configuration
file format, see netplan(5).
OPTIONS
-h, –help
Print basic help.
–debug Print debugging output during the process.
KNOWN ISSUES
netplan apply will not remove virtual devices such as bridges and bonds that have been created, even if
they are no longer described in the netplan configuration. That is due to the fact that netplan operates
statelessly and is not aware of the previously defined virtal devices.
This can be resolved by manually removing the virtual device (for example ip link delete dev bond0) and
then running netplan apply, by rebooting, or by creating a temporary backup of the YAML state in
/etc/netplan before modifying the configuration and passing this state to netplan (e.g. mkdir -p
/tmp/netplan_state_backup/etc && cp -r /etc/netplan /tmp/netplan_state_backup/etc/ then running netplan
apply –state /tmp/netplan_state_backup)
SEE ALSO
netplan(5), netplan-generate(8), netplan-try(8), udev(7), systemd-networkd.service(8), NetworkManager(8)
AUTHORS
Daniel Axtens (<daniel.axtens@canonical.com>).
netplan-apply(8)