Created
April 26, 2018 18:08
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consul init script
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#!/bin/bash | |
# | |
# consul Manage the consul agent | |
# | |
# chkconfig: 2345 95 85 | |
# description: Consul is a tool for service discovery and configuration | |
# processname: consul | |
# config: /etc/consul.d | |
# pidfile: /var/run/consul.pid | |
### BEGIN INIT INFO | |
# Provides: consul | |
# Required-Start: $local_fs $network | |
# Required-Stop: | |
# Should-Start: | |
# Should-Stop: | |
# Default-Start: 2 3 4 5 | |
# Default-Stop: 0 1 6 | |
# Short-Description: Manage the consul agent | |
# Description: Consul is a tool for service discovery and configuration | |
### END INIT INFO | |
# source function library | |
. /etc/rc.d/init.d/functions | |
prog="consul" | |
user="consul" | |
exec="/usr/bin/consul" | |
pidfile="/var/run/$prog.pid" | |
lockfile="/var/lock/subsys/$prog" | |
logfile="/var/log/$prog" | |
confdir="/etc/consul.d/server" | |
DAEMON_ARGS="agent -config-dir=$confdir " | |
# pull in sysconfig settings | |
[ -e /etc/sysconfig/$prog ] && . /etc/sysconfig/$prog | |
export GOMAXPROCS=${GOMAXPROCS:-2} | |
start() { | |
[ -x $exec ] || exit 5 | |
[ -d $confdir ] || exit 6 | |
umask 077 | |
touch $logfile $pidfile | |
chown $user:$user $logfile $pidfile | |
echo -n $"Starting $prog: " | |
## holy shell shenanigans, batman! | |
## daemon can't be backgrounded. we need the pid of the spawned process, | |
## which is actually done via runuser thanks to --user. you can't do "cmd | |
## &; action" but you can do "{cmd &}; action". | |
daemon \ | |
--pidfile=$pidfile \ | |
--user=consul \ | |
" { $exec ${DAEMON_ARGS} ${CONSUL_OPTS} &>> $logfile & } ; echo \$! >| $pidfile " | |
RETVAL=$? | |
echo | |
[ $RETVAL -eq 0 ] && touch $lockfile | |
return $RETVAL | |
} | |
stop() { | |
echo -n $"Shutting down $prog: " | |
## graceful shutdown with SIGINT | |
#killproc -p $pidfile $exec -INT | |
$exec leave | |
RETVAL=$? | |
echo | |
[ $RETVAL -eq 0 ] && rm -f $lockfile | |
return $RETVAL | |
} | |
restart() { | |
stop | |
start | |
} | |
reload() { | |
echo -n $"Reloading $prog: " | |
#killproc -p $pidfile $exec -HUP | |
$exec reload | |
echo | |
} | |
force_reload() { | |
restart | |
} | |
rh_status() { | |
status -p "$pidfile" -l $prog $exec | |
} | |
rh_status_q() { | |
rh_status >/dev/null 2>&1 | |
} | |
case "$1" in | |
start) | |
rh_status_q && exit 0 | |
$1 | |
;; | |
stop) | |
rh_status_q || exit 0 | |
$1 | |
;; | |
restart) | |
$1 | |
;; | |
reload) | |
rh_status_q || exit 7 | |
$1 | |
;; | |
force-reload) | |
force_reload | |
;; | |
status) | |
rh_status | |
;; | |
condrestart|try-restart) | |
rh_status_q || exit 0 | |
restart | |
;; | |
*) | |
echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload}" | |
exit 2 | |
esac | |
exit $? |
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