netplan-try - try a configuration, optionally rolling it back
netplan [-debug] try -h | -help
netplan [-debug] try [-config-file
CONFIG_FILE] [-timeout TIMEOUT]
netplan try takes a netplan(5) configuration, applies
it, and automatically rolls it back if the user does not confirm the
configuration within a time limit.
This may be especially useful on remote systems, to prevent an
administrator being permanently locked out of systems in the case of a
network configuration error.
- -h, -help
Print basic help.
Print debugging output during the process.
- -config-file CONFIG_FILE
In addition to the usual configuration, apply CONFIG_FILE.
It must be a YAML file in the netplan(5) format.
- -timeout TIMEOUT
Wait for TIMEOUT seconds before reverting.
Defaults to 120 seconds.
Note that some network configurations (such as STP) may take over a
minute to settle.
netplan try uses similar procedures to netplan apply,
so some of the same caveats apply around virtual devices.
There are also some known bugs: if netplan try times out or is
cancelled, make sure to verify if the network configuration has in fact
As with netplan apply, a reboot should fix any issues.
However, be sure to verify that the config on disk is in the state you
expect before rebooting!
Daniel Axtens (<firstname.lastname@example.org