Creating PID File?

[Yordan Georgiev]

#!/sbin/runscript
# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/www-servers/nginx/files/nginx-r1,v
1.12006/07/04 16:58:38 voxus Exp $

opts="${opts} upgrade reload configtest"

depend() {
        need net
        use dns logger
}

start() {
        configtest || return 1
        ebegin "Starting nginx"
        start-stop-daemon --start --pidfile /var/run/nginx.pid \
                --exec /usr/sbin/nginx -- -c /etc/nginx/nginx.conf
        eend $? "Failed to start nginx"
}

stop() {
        configtest || return 1
        ebegin "Stopping nginx"
        start-stop-daemon --stop --pidfile /var/run/nginx.pid
        eend $? "Failed to stop nginx"
        rm -f /var/run/nginx.pid
}

reload() {
        configtest || return 1
        ebegin "Refreshing nginx' configuration"
        kill -HUP `cat /var/run/nginx.pid` &>/dev/null
        eend $? "Failed to reload nginx"
}

upgrade() {
        configtest || return 1
        ebegin "Upgrading nginx"

        einfo "Sending USR2 to old binary"
        kill -USR2 `cat /var/run/nginx.pid` &>/dev/null

        einfo "Sleeping 3 seconds before pid-files checking"
        sleep 3

        if [ ! -f /var/run/nginx.pid.oldbin ]; then
                eerror "File with old pid not found"
                return 1
        fi

        if [ ! -f /var/run/nginx.pid ]; then
                eerror "New binary failed to start"
                return 1
        fi

        einfo "Sleeping 3 seconds before WINCH"
        sleep 3 ; kill -WINCH `cat /var/run/nginx.pid.oldbin`

        einfo "Sending QUIT to old binary"
        kill -QUIT `cat /var/run/nginx.pid.oldbin`

        einfo "Upgrade completed"

        eend $? "Upgrade failed"
}

configtest() {
        ebegin "Checking nginx' configuration"
        /usr/sbin/nginx -c /etc/nginx/nginx.conf -t
        eend $? "failed, please correct errors above"
}
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