nginx init.d script

nginx

#!/usr/bin/env bash

# Adapted from the book "Nginx HTTP Server", by Clement Nedelcu.
# Original Author: Ryuan Norbauer http://norbauerinc.com
# Modified: Geoffrey Grosenbach http://topfunky.com
# Modified: Clement Nedelcu http://cnedelcu.blogspot.com/
# Modified: Jordan Orelli http://jordanorelli.com/
# source: https://gist.github.com/1161075

# Corresponds with the following compile-time options:
# --sbin-path=/usr/local/sbin
# --pid-path=/var/run/nginx.pid

### BEGIN INIT INFO
# Provides:             nginx
# Required-Start:       $local_fs $remote_fs $network $syslog $named
# Required-Stop:        $local_fs $remote_fs $network $syslog $named
# Default-Start:        2 3 4 5
# Default-Stop:         0 1 6
# X-Interactive:        false
# Short-Description:    start/stop nginx web server
### END INIT INFO

set -e
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DESC="nginx daemon"
NAME="nginx"
PIDFILE="/var/run/$NAME.pid"
DAEMON="/usr/local/sbin/$NAME"
SCRIPTNAME="/etc/init.d/$NAME"

# If the daemon file is not found, terminate the script.
if [[ ! -x "$DAEMON" ]] ; then
    echo "ERROR: Unable to find nginx daemon file expected to be found"\
        "at $DAEMON." >&2
    exit 2
fi

d_start() {
    if [[ -f "$PIDFILE" ]] ; then
        echo "ERROR: $NAME appears to be running.  Check $PIDFILE" >&2
        exit 4
    fi
    "$DAEMON"
}

d_stop() {
    if [[ ! -f "$PIDFILE" ]] ; then
        echo "ERROR: $NAME does not appear to be running; pid file $PIDFILE not found." >&2
        exit 5
    fi
    $DAEMON -s quit
}

d_reload() {
    if [[ -f "$PIDFILE" ]] ; then
        "$DAEMON" -s reload
    else
        "$DAEMON"
    fi
}

d_status() {
    if [[ -f "$PIDFILE" ]] ; then
        echo "$NAME is running."
    else
        echo "$NAME is not running."
    fi
}

d_info() {
    "$DAEMON" -V
}

case "$1" in
    start)
        echo "Starting $DESC: $NAME"
        d_start
    ;;
    stop)
        echo "Stopping $DESC: $NAME"
        d_stop
    ;;
    reload | force-reload)
        echo "Reloading $DESC configuration..."
        d_reload
        echo "reloaded."
    ;;
    restart)
        echo "Restarting $DESC: $NAME"
        d_stop
        # Sleep for two seconds to give the nginx daemon some time to perform
        # a graceful stop.
        sleep 2
        d_start
    ;;
    status)
        d_status
    ;;
    info)
        d_info
    ;;
    *)
        echo "Usage: $SCRIPTNAME {start|stop|restart|reload|info}" >&2
        exit 3
    ;;
esac

exit 0

after picking up the book "Nginx HTTP Server" and compiling nginx from source, I found that none of the init.d scripts I was finding were to my liking, so I updated the one from the book.

• using /usr/sbin/env bash instead of /bin/sh, which may be a shitty idea for startup scripts but I'm not really sure.
• added the "info" option to check compile-time config options.
• added the "force-reload" and "status" options for LSB compliance.
• changed some of the output behavior.
• checking for pidfile before attempting to start nginx when it's already running
• checking for pidfile before attempting to stop nginx when it's not running
• added LSB init info block.

I've only tested this on Debian, but it appears to work just fine.