salt.modules.minion module

Module to provide information about minions

salt.modules.minion.kill(timeout=15)

Kill the salt minion.

timeout

int seconds to wait for the minion to die.

If you have a monitor that restarts salt-minion when it dies then this is a great way to restart after a minion upgrade.

CLI example:

>$ salt minion[12] minion.kill
minion1:
    ----------
    killed:
        7874
    retcode:
        0
minion2:
    ----------
    killed:
        29071
    retcode:
        0

The result of the salt command shows the process ID of the minions and the results of a kill signal to the minion in as the retcode value: 0 is success, anything else is a failure.

salt.modules.minion.list_()

Return a list of accepted, denied, unaccepted and rejected keys. This is the same output as salt-key -L

CLI Example:

salt 'master' minion.list

salt.modules.minion.restart()

Kill and restart the salt minion.

The configuration key minion_restart_command is an argv list for the command to restart the minion. If minion_restart_command is not specified or empty then the argv of the current process will be used.

if the configuration value minion_restart_command is not set and the -d (daemonize) argument is missing from argv then the minion will be killed but will not be restarted and will require the parent process to perform the restart. This behavior is intended for managed salt minion processes.

CLI example:

>$ salt minion[12] minion.restart
minion1:
    ----------
    comment:
        - Restart using process argv:
        -     /home/omniture/install/bin/salt-minion
        -     -d
        -     -c
        -     /home/omniture/install/etc/salt
    killed:
        10070
    restart:
        ----------
        stderr:
        stdout:
    retcode:
        0
minion2:
    ----------
    comment:
        - Using configuration minion_restart_command:
        -     /home/omniture/install/bin/salt-minion
        -     --not-an-option
        -     -d
        -     -c
        -     /home/omniture/install/etc/salt
        - Restart failed
    killed:
        10896
    restart:
        ----------
        stderr:
            Usage: salt-minion

            salt-minion: error: no such option: --not-an-option
        stdout:
    retcode:
        64

The result of the command shows the process ID of minion1 that is shutdown (killed) and the results of the restart. If there is a failure in the restart it will be reflected in a non-zero retcode and possibly output in the stderr and/or stdout values along with addition information in the comment field as is demonstrated with minion2.