mirror of
https://github.com/Mikaela/Limnoria-doc.git
synced 2024-11-30 00:09:23 +01:00
123 lines
4.4 KiB
ReStructuredText
123 lines
4.4 KiB
ReStructuredText
.. _supybot-botchk:
|
|
|
|
################################
|
|
Restarting the bot automatically
|
|
################################
|
|
|
|
This page documents the different ways to automatically restart your bot
|
|
in case of crash or system reboot or anything that can make the bot quit.
|
|
|
|
Note that you only need to use one.
|
|
|
|
supybot-botchk
|
|
==============
|
|
|
|
supybot-botchk is a script that comes with Supybot which restarts the bot
|
|
if it quits or system reboots or anything that causes the bot to quit. It's
|
|
placed to crontab so cron will run it with scheduled intervals.
|
|
|
|
How to use it?
|
|
--------------
|
|
|
|
Configuring the bot
|
|
^^^^^^^^^^^^^^^^^^^
|
|
|
|
Start by telling your bot to write a pidfile somewhere where it can write
|
|
and restart the bot. For example::
|
|
|
|
config supybot.pidfile /home/<username>/<bot>/<bot>.pid
|
|
|
|
where <username> is replaced with the system username and <bot> is replaced
|
|
with the name of the bot.
|
|
|
|
crontab
|
|
^^^^^^^
|
|
|
|
After the pidfile is configured, you can modify crontab. First you should
|
|
copy the output of::
|
|
|
|
printf 'PATH=%s\n' "$PATH"
|
|
|
|
and open crontab with ``EDITOR=nano crontab -e`` and paste the output of
|
|
previous command to the first lines which don't have comments. This should
|
|
be on top. You will probably also want to configure locale and timezone
|
|
which happens by adding the following lines::
|
|
|
|
# Replace en_US.utf8 with your own locale! You should see list of
|
|
# available locales with `locale` command, just use something which
|
|
# ends with "utf8" or "UTF-8" (the latter is required on some operating
|
|
# systems like OS X).
|
|
LC_ALL=en_US.UTF-8
|
|
|
|
# Specifying timezone is optional, but you probably want to do it if
|
|
# your system is on different timezone. Replace ``UTC`` with
|
|
# ``Area/Region`` as it appears in IANA Time Zone Database if you don't
|
|
# want to use UTC.
|
|
TZ=UTC
|
|
|
|
NOTE: Lines starting with # are comments and don't need to be written.
|
|
|
|
Now you finally add the bot. If you have multiple bots, simply add separate
|
|
lines for them all::
|
|
|
|
*/5 * * * * supybot-botchk --botdir=/home/<username>/<bot>/ --pidfile=/home/<username>/<bot>/<bot>.pid --conffile=/home/<username>/<bot>/<bot>.conf
|
|
|
|
If you needed to use diferent environment for other bot, you could specify
|
|
that on the same line. For example, my other bot uses en_US.utf8 as locale
|
|
and UTC as timezone::
|
|
|
|
*/5 * * * * LC_ALL=en_US.UTF-8 TZ=UTC supybot-botchk --botdir=/home/<username>/<bot2>/ --pidfile=/home/<username>/<bot2>/<bot2>.pid --conffile=/home/<username>/<bot2>/<bot2>.conf
|
|
|
|
Note that environment doesn't need to be specified on supybot-botchk line
|
|
unless it differs from globally specified environment which we added as the
|
|
first thing to crontab.
|
|
|
|
Now you can save the crontab by pressing ``CTRL + O`` answering ``y`` and
|
|
then quitting nano with ``CTRL + X``.
|
|
|
|
If you are wondering what ``*/5 * * * *`` means, it simply means "run this
|
|
every five minutes every day". The 5 can be replaced with any other number
|
|
and there are also ``@hourly`` etc. which can be used on it's place, but
|
|
you most likely won't want to wait hour or more if your bot crashes.
|
|
|
|
systemd service
|
|
===============
|
|
|
|
You need root access as no one has got this to work as user service yet.
|
|
You must also use systemd as your init.
|
|
|
|
Create a new file ``/etc/systemd/system/<BOTNAME>.service`` with the
|
|
following content replacing things were suitable::
|
|
|
|
[Unit]
|
|
Description=Supybot
|
|
After=network.target
|
|
|
|
[Service]
|
|
Environment="PATH=/usr/local/bin:/usr/local/sbin:/usr/local/games:/usr/bin:/usr/sbin:/usr/games:/bin:/sbin:/bin:/opt/local/bin:/opt/local/sbin:/opt/local/games TZ=UTC"
|
|
Type=forking
|
|
ExecStart=/usr/local/bin/supybot /home/bot/botname/botname.conf --daemon
|
|
ExecReload=/bin/kill -HUP $MAINPID
|
|
Restart=always
|
|
User=BOTUSERNAME
|
|
|
|
[Install]
|
|
WantedBy=multi-user.target
|
|
|
|
Now you should run ``systemctl daemon-reload`` to make systemd aware
|
|
of changed files and ``systemctl enable <BOTNAME>.service`` to make the
|
|
bot start on boot etc. and ``systemctl start <BOTNAME>.service`` to start
|
|
the bot.
|
|
|
|
Remember to check the ``Ènvironment`` line. You can get your PATH with
|
|
``printf 'PATH=%s\n' "$PATH"``.
|
|
|
|
Some commands
|
|
-------------
|
|
|
|
* autostart on boot: ``systemctl enable <BOTNAME>.service``
|
|
* disable autostart on boot: ``systemctl disable <BOTNAME>.service``
|
|
* start the bot: ``systemctl start <BOTNAME>.service``
|
|
* stop the bot: ``systemctl stop <BOTNAME>.service``
|
|
* reload config files: ``systemctl reload <BOTNAME>.service``
|