title: NETPLAN-TRY section: 8 author:
- Daniel Axtens (daniel.axtens@canonical.com) ...
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.
A configuration can be confirmed or rejected interactively or by sending the SIGUSR1 or SIGINT signals.
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.
--debug
: 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 been reverted.
As with netplan apply
, a reboot should fix any issues. However, be
sure to verify that the configuration on disk is in the state you expect
before rebooting!
netplan
(5), netplan-generate
(8), netplan-apply
(8)