openrc/sh/runit.sh
Aaditya Bagga 6e24d33517 [runit integration] give a bit of time to start the service
Currently, we run sv start immediately after linking the service.
The runsv process may not be up at the moment, as a result of which
openrc will mark the service as stopped, even though it may be brought up
by runit at the next scan.

This is documented in the gentoo wiki:
https://wiki.gentoo.org/wiki/Runit#OpenRC.27s_runit_integration_feature

This PR adds a timeout so that correct process state can be reported.

Before:
 * Starting netdata-runit ...
fail: /run/openrc/sv/netdata: runsv not running
 * Failed to start netdata-runit

After:
 * Starting netdata-runit ...
fail: /run/openrc/sv/netdata: runsv not running
ok: run: /run/openrc/sv/netdata: (pid 9042) 0s

This fixes #253.
2021-09-11 17:20:50 -05:00

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# Copyright (c) 2016 The OpenRC Authors.
# See the Authors file at the top-level directory of this distribution and
# https://github.com/OpenRC/openrc/blob/master/AUTHORS
#
# This file is part of OpenRC. It is subject to the license terms in
# the LICENSE file found in the top-level directory of this
# distribution and at https://github.com/OpenRC/openrc/blob/master/LICENSE
# This file may not be copied, modified, propagated, or distributed
# except according to the terms contained in the LICENSE file.
# Released under the 2-clause BSD license.
runit_start()
{
local service_path service_link
service_path="${runit_service:-/etc/sv/${RC_SVCNAME}}"
if [ ! -d "${service_path}" ]; then
eerror "Runit service ${service_path} not found"
return 1
fi
service_link="${RC_SVCDIR}/sv/${service_path##*/}"
ebegin "Starting ${name:-$RC_SVCNAME}"
ln -snf "${service_path}" "${service_link}"
local i=0 retval=1
# it can take upto 5 seconds for runsv to start
while [ $i -lt 6 ] ; do
if sv start "${service_link}" > /dev/null 2>&1; then
retval=0
break
fi
sleep 1 && i=$(expr $i + 1)
done
if [ $retval -eq 1 ]; then
# clean up the link else sv will keep on trying
rm "${service_link}"
fi
eend $retval "Failed to start ${name:-$RC_SVCNAME}"
}
runit_stop()
{
local service_path service_link
service_path="${runit_service:-/etc/sv/${RC_SVCNAME}}"
if [ ! -d "${service_path}" ]; then
eerror "Runit service ${service_path} not found"
return 1
fi
service_link="${RC_SVCDIR}/sv/${service_path##*/}"
ebegin "Stopping ${name:-$RC_SVCNAME}"
sv stop "${service_link}" > /dev/null 2>&1 &&
rm "${service_link}"
eend $? "Failed to stop ${name:-$RC_SVCNAME}"
}
runit_status()
{
local service_path service_link
service_path="${runit_service:-/etc/sv/${RC_SVCNAME}}"
if [ ! -d "${service_path}" ]; then
eerror "Runit service ${service_path} not found"
return 1
fi
service_link="${RC_SVCDIR}/sv/${service_path##*/}"
sv status "${service_link}"
}