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Add an initscript for sentinel on apt-based systems
Until an initscript is available for redis-sentinel in its package[1] we need to roll our own. This change adds that by creating a templated initscript with the sentinel config file and service owner and group as template variables that get filled in. Testing this revealed some bugs and misfeatures that are also addressed in this change: * apt systems want the redis and redis-sentinel processes to daemonize (systemd-based) rpm does not. This was not reflected in the params defaults, nor reflected in the sentinel configuration template. Now it is. * the package_name for redis-sentinel was not being passed in as a parameter, instead it was just using the params.pp default for redis server. When [1] is resolve, it will likely mean a different package for redis-sentinel so we need there to be a separate parameter for the sentinel package that gets installed. For now the name of the existing package is used. [1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=775414
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| #! /bin/sh | ||
| ### BEGIN INIT INFO | ||
| # Provides: redis-sentinel | ||
| # Required-Start: $syslog $remote_fs | ||
| # Required-Stop: $syslog $remote_fs | ||
| # Should-Start: $local_fs | ||
| # Should-Stop: $local_fs | ||
| # Default-Start: 2 3 4 5 | ||
| # Default-Stop: 0 1 6 | ||
| # Short-Description: redis-server - Persistent key-value db | ||
| # Description: redis-server - Persistent key-value db | ||
| ### END INIT INFO | ||
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| PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin | ||
| DAEMON=/usr/bin/redis-sentinel | ||
| DAEMON_ARGS=<%= @config_file %> | ||
| NAME=redis-sentinel | ||
| DESC=redis-senitnel | ||
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| RUNDIR=/var/run/redis | ||
| PIDFILE=$RUNDIR/redis-sentinel.pid | ||
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| test -x $DAEMON || exit 0 | ||
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| if [ -r /etc/default/$NAME ] | ||
| then | ||
| . /etc/default/$NAME | ||
| fi | ||
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| . /lib/lsb/init-functions | ||
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| set -e | ||
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| case "$1" in | ||
| start) | ||
| echo -n "Starting $DESC: " | ||
| mkdir -p $RUNDIR | ||
| touch $PIDFILE | ||
| chown <%= @service_user %>:<%= @service_group %> $RUNDIR $PIDFILE | ||
| chmod 755 $RUNDIR | ||
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| if [ -n "$ULIMIT" ] | ||
| then | ||
| ulimit -n $ULIMIT | ||
| fi | ||
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| if start-stop-daemon --start --quiet --umask 007 --pidfile $PIDFILE --chuid <%= @service_user %>:<%= @service_group %> --exec $DAEMON -- $DAEMON_ARGS | ||
| then | ||
| echo "$NAME." | ||
| else | ||
| echo "failed" | ||
| fi | ||
| ;; | ||
| stop) | ||
| echo -n "Stopping $DESC: " | ||
| if start-stop-daemon --stop --retry forever/TERM/1 --quiet --oknodo --pidfile $PIDFILE --exec $DAEMON | ||
| then | ||
| echo "$NAME." | ||
| else | ||
| echo "failed" | ||
| fi | ||
| rm -f $PIDFILE | ||
| sleep 1 | ||
| ;; | ||
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| restart|force-reload) | ||
| ${0} stop | ||
| ${0} start | ||
| ;; | ||
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| status) | ||
| echo -n "$DESC is " | ||
| if start-stop-daemon --stop --quiet --signal 0 --name ${NAME} --pidfile ${PIDFILE} | ||
| then | ||
| echo "running" | ||
| else | ||
| echo "not running" | ||
| exit 1 | ||
| fi | ||
| ;; | ||
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| *) | ||
| echo "Usage: /etc/init.d/$NAME {start|stop|restart|force-reload|status}" >&2 | ||
| exit 1 | ||
| ;; | ||
| esac | ||
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| exit 0 |