I am trying to roll out pt-stalk with an init script, but I'm having a hard time getting the mysql credentials into the script without putting them in the MYSQL_OPTS
section for the pt-stalk launch. [Documentation]
Normally on the servers we have /root/.my.cnf containing the admin credentials for that machine, but no matter if I set the HOME
var in the script explicitly to /root
within the init script pt-stalk fails to start because the mysql CLI utility cannot find the credentials.
I've looked through the man page, but I cannot find anything that allows me to specify a credentials file to use rather than putting everything as command line arguments.
The init script in question:
#!/usr/bin/env bash
# chkconfig: 2345 20 80
# description: pt-stalk
### BEGIN INIT INFO
# Provides: pt-stalk
# Required-Start: $network $named $remote_fs $syslog
# Required-Stop: $network $named $remote_fs $syslog
# Should-Start: pt-stalk
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
### END INIT INFO
export HOME=/root
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DAEMON="/usr/bin/pt-stalk"
DAEMON_OPTS="--config /etc/pt-stalk.conf"
NAME="pt-stalk"
DESC="pt-stalk"
PIDFILE="/var/run/${NAME}.pid"
STALKHOME="/var/lib/pt-stalk"
test -x $DAEMON || exit 1
[ -r /etc/default/pt-stalk ] && . /etc/default/pt-stalk
#. /lib/lsb/init-functions
sig () {
test -s "$PIDFILE" && kill -$1 `cat $PIDFILE`
}
start() {
if [[ -z $MYSQL_OPTS ]]; then
HOME=$STALKHOME $DAEMON $DAEMON_OPTS
else
HOME=$STALKHOME $DAEMON $DAEMON_OPTS -- $MYSQL_OPTS
fi
return $?
}
stop() {
if sig TERM; then
while sig 0 ; do
echo -n "."
sleep 1
done
return 0
else
echo "$DESC is not running."
return 1
fi
}
status() {
if sig 0 ; then
echo "$DESC (`cat $PIDFILE`) is running."
return 0
else
echo "$DESC is stopped."
return 1
fi
}
log_begin_msg() {
echo $1
}
log_end_msg() {
if [ $1 -eq 0 ]; then
echo "Success"
else
echo "Failure"
fi
}
case "$1" in
start)
log_begin_msg "Starting $DESC"
start
log_end_msg $?
;;
stop)
log_begin_msg "Stopping $DESC"
stop
log_end_msg $?
;;
status)
status ;;
restart)
log_begin_msg "Restarting $DESC"
stop
sleep 1
start
log_end_msg $?
;;
*)
echo "Usage: $0 {start|stop|status|}" >&2
exit 1
;;
esac
Originally from GitHub with a couple minor changes.