openresty init script

openresty

#!/bin/bash
#
# chkconfig: 2345 55 25
# description: Openresty
# processname: nginx
# config: /usr/local/openresty/nginx/conf/nginx.conf
# pidfile: /usr/local/openresty/nginx/logs/nginx.pid
### BEGIN INIT INFO
# Provides: nginx
# Required-Start: $local_fs $remote_fs $network $named $syslog $time
# Required-Stop: $local_fs $remote_fs $network $named $syslog $time
# Short-Description: Openresty init script
# Description: OpenResty is a full-fledged web application server bundling the standard Nginx core, 3rd-party Nginx modules, as well as most of their external dependencies.
### END INIT INFO

PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DESC="Nginx Daemon"
NAME=nginx
PREFIX=/usr/local/openresty/nginx
DAEMON=${PREFIX}/sbin/${NAME}
CONF=${PREFIX}/conf/${NAME}.conf
PID=${PREFIX}/logs/${NAME}.pid
SCRIPT=/etc/init.d/${NAME}

if [ ! -x ${DAEMON} ]; then
    echo -e "$(tput setaf 1) ${DAEMON} has no permission to run. $(tput sgr 0)"
    exit 1
fi
if [ ! -f ${CONF} ]; then
    echo -e "$(tput setaf 1) ${CONF} doesn't exist. $(tput sgr 0)"
    exit 1
fi


check_pid() {
    if [ -s ${PID} ]; then
        PID_PROCESS=$(ps -p$(cat ${PID}) -o pid=)
    else
        PID_PROCESS=""
        POS_PROCESS=$(ps aux | grep "nginx: master" | grep -v grep | head -n 1 | awk '{print $2}')
    fi
}

remove_pid() {
    if [ -f ${PID} ]; then
        echo -e "$(tput setaf 1) ${PID} exists, ${DESC} probably crashed. $(tput sgr 0)"
        echo -e "$(tput setaf 1) deleting ${PID} ... $(tput sgr 0)"
        rm -f ${PID}
        echo -e "$(tput setaf 1) ${PID} deleted. $(tput sgr 0)"
    fi
}

check_pos_process() {
    if [ ${#POS_PROCESS} -gt 0 ]; then
        echo -e "$(tput setaf 1) WARNING: $(tput sgr 0)"
        echo -e "$(tput setaf 1) There is a possible ${DESC} running with pid ${POS_PROCESS} but there is no pid file for it. $(tput sgr 0)"
        exit 1
    fi
}


do_start() {
    check_pid
    if [ ${#PID_PROCESS} -gt 0 ]; then
        echo -e "$(tput setaf 1) ${DESC} is already running. $(tput sgr 0)"
        echo -e "$(tput setaf 2) ${DESC} reopening ${CONF} ... $(tput sgr 0)"
        ${DAEMON} -s reopen -c ${CONF}
        sleep 1
        echo -e "$(tput setaf 2) ${DESC} reopened. $(tput sgr 0)"
    else
        remove_pid
        check_pos_process
        echo -e "$(tput setaf 2) ${DESC} starting ${CONF} ... $(tput sgr 0)"
        ${DAEMON} -c ${CONF}
        sleep 1
        echo -e "$(tput setaf 2) ${DESC} started. $(tput sgr 0)"
    fi
}

do_stop() {
    check_pid
    if [ ${#PID_PROCESS} -eq 0 ]; then
        echo -e "$(tput setaf 1) ${DESC} isn't running. $(tput sgr 0)"
        remove_pid
        check_pos_process
    else
        echo -e "$(tput setaf 2) ${DESC} stopping ${CONF} ... $(tput sgr 0)"
        ${DAEMON} -s stop -c ${CONF}
        sleep 1
        echo -e "$(tput setaf 2) ${DESC} stopped. $(tput sgr 0)"
    fi
}

do_quit() {
    check_pid
    if [ ${#PID_PROCESS} -eq 0 ]; then
        echo -e "$(tput setaf 1) ${DESC} isn't running. $(tput sgr 0)"
        remove_pid
        check_pos_process
    else
        echo -e "$(tput setaf 2) ${DESC} quitting ${CONF} ... $(tput sgr 0)"
        ${DAEMON} -s quit -c ${CONF}
        sleep 1
        echo -e "$(tput setaf 2) ${DESC} quitted. $(tput sgr 0)"
    fi
}

do_reload() {
    check_pid
    if [ ${#PID_PROCESS} -eq 0 ]; then
        echo -e "$(tput setaf 1) ${DESC} isn't running. $(tput sgr 0)"
        remove_pid
        check_pos_process
        echo -e "$(tput setaf 2) ${DESC} starting ${CONF} ... $(tput sgr 0)"
        ${DAEMON} -c ${CONF}
        sleep 1
        echo -e "$(tput setaf 2) ${DESC} started. $(tput sgr 0)"
    else
        echo -e "$(tput setaf 2) ${DESC} reloading ${CONF} ... $(tput sgr 0)"
        ${DAEMON} -s reload -c ${CONF}
        sleep 1
        echo -e "$(tput setaf 2) ${DESC} reloaded. $(tput sgr 0)"
    fi
}

do_test() {
    echo -e "$(tput setaf 2) ${DESC} testing ${CONF} ... $(tput sgr 0)"
    ${DAEMON} -t -c ${CONF}
}

do_info() {
    ${DAEMON} -V
}


case "$1" in
start)
    do_start
    ;;
stop)
    do_stop
    ;;
quit)
    do_quit
    ;;
reload)
    do_reload
    ;;
restart)
    do_stop
    do_start
    ;;
test)
    do_test
    ;;
info)
    do_info
    ;;
*)
    echo "$(tput setaf 2) Usage: $SCRIPT {start|stop|quit|reload|restart|test|info} $(tput sgr 0)"
    ;;
esac

exit 0