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Andreas Linz 53ae9b8521 Increase restart rate limit 
The previous setting caused the service to hit a rate-limit when it was
restarted more than 5 times in 24h.
Editing the Caddyfile and restarting the service could also easily
trigger this rate limit.
One could argue that users could simply call `systemctl reset-failed
caddy` to reset the rate-limit counter, but this is counterintuitive
because most users won't know this command and are possibly unaware that
they had hit a rate-limit.

The service is now allowed to restart 10 times in 10 seconds before
hitting a rate limit.
This should be conservative enough to rate limit quickly failing
services and to allow users to edit and test their caddy configuration.

This closes #1718

Remove restart limit settings and use defaults

By default 5 restarts within 10 seconds are allowed without
encountering a restart limit hit, see  `man systemd.unit` for details.

Set Restart to on-abnormal

The table in https://www.freedesktop.org/software/systemd/man/systemd.service.html#Restart=
shows the conditions for which on-abnormal would restart the service.
It will *not* restart the service in the following cases:

- a non-zero exit status, e.g. an invalid Caddyfile
- a zero exit code (or those specified in SuccessExitStatus=) and a clean signal
    clean signals are SIGHUP, SIGINT, SIGTERM or SIGPIPE
    3536f49e8f/src/basic/exit-status.c (L205)

The service *will be restarted* in the following cases:

- a unclean signal, e.g. SIGKILL
- on start and watchdog timeout (we don't use those systemd service
constructs explicitly)
2017-08-13 16:38:19 +02:00
..
init Increase restart rate limit 2017-08-13 16:38:19 +02:00
CHANGES.txt Update changes and readme for v0.10.6 2017-07-28 12:21:09 -06:00
gitcookie.sh.enc Bypass "bandwidth limit exceeded" errors when cloning from googlesource 2016-03-21 12:05:16 -06:00
LICENSES.txt Change to Windows line endings for poor Notepad 2016-01-25 13:46:07 -07:00
README.txt Update changes and readme for v0.10.6 2017-07-28 12:21:09 -06:00

README.txt 

CADDY 0.10.6

Website
	https://caddyserver.com

Community Forum
	https://caddy.community

Twitter
	@caddyserver

Source Code
	https://github.com/mholt/caddy
	https://github.com/caddyserver


For instructions on using Caddy, please see the user guide on
the website. For a list of what's new in this version, see
CHANGES.txt.

For a good time, follow @mholt6 on Twitter.

Want to get involved with Caddy's development? We love to have
contributions! Please file an issue on GitHub to discuss a
change or fix you'd like to make, then submit a pull request
and we'll review it! Your contributions will reach millions
of people who connect to sites served by Caddy.

Extend Caddy by developing a plugin for it! Instructions on
the project wiki: https://github.com/mholt/caddy/wiki

And thanks - you're awesome!

If you think Caddy is awesome too, consider sponsoring it:
https://caddyserver.com/pricing - and help keep Caddy free.


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