Add action script on alert

[nicolargo]

Upon trigger (for exemple critical alert on free diskspace) a mail will be sent to a administrator.

[mxjeff]

Better than the antique mail technology why don't you make it more general, more abstract. Launching a python script for isntance.

Then it allows users to send xmpp|mail messages, write a log, play sound, send sms etc… : )

cheers

[nicolargo]

Like your idea...

[rvrignaud]

@mxjeff : yes, I agree. It would be more convenient. Maybe we could add a Hubot (http://hubot.github.com/) plugin.

[jrenner]

How would the python script be configured? For example, what if the user wants t choose to play a sound and send an sms, but no email?

[rvrignaud]

config file ?

[mxjeff]

It could be as simple as string to give to subprocess.Popen(). Then one can write a script in plain shell, perl or python to perform whatever action is required.

Glances could set some env. var. to pass some info to the external process being call.
Another solution would be to set positional arguments within subprocess call :

subprocess.Popen([script_defined_in_conf, some, pos, arg])

I say, keep it simple and powerful enough for users to do whatever they want.

[jrenner]

How about something like this?

import subprocess

commands = ["python custom_sendmail.py -addr test@example.com",
            "python make_an_alarm_noise.py",]

print "Something is wrong, run alarm commands"
for cmd in commands:
    formatted_cmd = cmd.split()
    print "Running: '%s'" % formatted_cmd
    subprocess.Popen(formatted_cmd)

[darionyaphet]

config file's path would be set at the programing init ?

[nicolargo]

As a bonus, you can also use stats values as {{mustache}} tag in the command line:

 [fs]
# Default limits for free filesytem space in %
# Default values if not defined: 50/70/90
careful=20
careful_action=echo {{mnt_point}} {{used}}/{{size}} > /tmp/fs.alert
warning=70
critical=90

[nicolargo]

Feature available on the develop branch (commit: 283af00).

Should be beta-tested with a maximum of case.

Feature documentation:

Glances can trigger actions on events.

By action, we mean all shell command line. For example, if you want to execute the foo.py script if the last 5 minutes load are critical then add the action line to the Glances configuration file:

[load]
critical=5.0
critical_action=python /path/to/foo.py

All the stats are usable in the command line by the use of the {{mustache}} syntax. Another example to create a log file containing used vs total disk space if a warning space trigger is reached:

[fs]
warning=70
warning_action=echo {{mnt_point}} {{used}}/{{size}} > /tmp/fs.alert

Note: You can use all the stats for the current plugin (see https://github.com/nicolargo/glances/wiki/The-Glances-2.x-API-How-to for the stats list)

How to install the develop branch: https://github.com/nicolargo/glances/wiki/Install-and-test-Glances-DEVELOP-version

[APalau82]

Hi
I would like to cumulate an action with cron to be alerted when fs size is in warning status.
But while running glances with cron (* * * * * /usr/bin/glances) the {{mustaches}} values are not replaced by the real values. 'fs.alert' file litterally prints : "{{mnt_point}} {{used}}/{{size}}".
While running manually glances, the output is correct : / 1571274752/3102470144

By the way if glances starts automatically with cron does it mean that it never stops ?
Thanks

[PascalSalesch]

Is it available in master already?