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Sending critical errors to syslog, slack, email, {your_plugin}.

Project description

Install:

pip install critbot

Add to “config.py” file:

import critbot.plugins.syslog
import critbot.plugins.slack
import critbot.plugins.email
from critbot import crit_defaults
import logging

crit_defaults.subject = 'MyService host:port CRIT'

crit_defaults.plugins = [
    critbot.plugins.syslog.plugin(),
    critbot.plugins.slack.plugin(
        token='Get it from https://my.slack.com/services/new/bot',
        channel='#general', # '@private' or '#channel'
        users='', # '@user1 @user2 @userN'
    ),
    critbot.plugins.email.plugin(
        to='Name1 <user1@example.com>, Name2 <user2@example.com>',
        user='critbot@example.com', # Add more config if not GMail.
        password='pa$$word',
    ),
]

crit_defaults.crit_in_crit = logging.getLogger('critbot').critical

Check other config options and their defaults, e.g. “seconds_per_notification=60” and “spam=False”:

Use “crit” in other files of your project:

from my_project import config
from critbot import crit

try:
    1/0
except Exception:
    crit()
    # More processing if needed.

try:
    1/0
except Exception:
    crit(also='test2')

if True:
    crit('test3')

If you are using http://supervisord.org/ then you can monitor stderr, EXITED and FATAL states with:

[eventlistener:critvisor]
command=critvisor /path/to/config.py
events=PROCESS_LOG_STDERR,PROCESS_STATE_EXITED,PROCESS_STATE_FATAL

[program:my_program]
stderr_events_enabled=true

Optional "crit_defaults.skip_stderrs" list allows to avoid some "safe" crits.
Optional "crit_defaults.max_stderr_crit_length" allows to save e.g. Slack from being broken.

If you want to convert stderr of your small scripts to crits:

stdcrit /path/to/config.py /path/to/script.py arg...

To stop spam from multiple processes on the same host:

crit_defaults.stop_spam_file.enabled = True
# "crit_defaults.stop_spam_file.path" defaults to "/run/lock/critbot" - RAM, no disk IO.

To stop spam from multiple hosts:

apt-get install libmemcached-dev zlib1g-dev
pip install pylibmc
crit_defaults.mc.enabled = True

And either "apt-get install memcached"
or update "crit_defaults.mc.servers" list.

Please fork https://github.com/denis-ryzhkov/critbot and create pull requests with new plugins inside.

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