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196
etc/init.d/nginx
Executable file
196
etc/init.d/nginx
Executable file
@@ -0,0 +1,196 @@
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#!/bin/sh
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### BEGIN INIT INFO
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# Provides: nginx
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# Required-Start: $local_fs $remote_fs $network $syslog $named
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# Required-Stop: $local_fs $remote_fs $network $syslog $named
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# Default-Start: 2 3 4 5
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# Default-Stop: 0 1 6
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# Short-Description: starts the nginx web server
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# Description: starts nginx using start-stop-daemon
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### END INIT INFO
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PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
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DAEMON=/usr/sbin/nginx
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NAME=nginx
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DESC=nginx
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# Include nginx defaults if available
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if [ -r /etc/default/nginx ]; then
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. /etc/default/nginx
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fi
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STOP_SCHEDULE="${STOP_SCHEDULE:-QUIT/5/TERM/5/KILL/5}"
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test -x $DAEMON || exit 0
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. /lib/init/vars.sh
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. /lib/lsb/init-functions
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# Try to extract nginx pidfile
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PID=$(cat /etc/nginx/nginx.conf | grep -Ev '^\s*#' | awk 'BEGIN { RS="[;{}]" } { if ($1 == "pid") print $2 }' | head -n1)
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if [ -z "$PID" ]; then
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PID=/run/nginx.pid
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fi
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if [ -n "$ULIMIT" ]; then
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# Set ulimit if it is set in /etc/default/nginx
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ulimit $ULIMIT
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fi
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start_nginx() {
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# Start the daemon/service
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#
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# Returns:
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# 0 if daemon has been started
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# 1 if daemon was already running
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# 2 if daemon could not be started
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start-stop-daemon --start --quiet --pidfile $PID --exec $DAEMON --test > /dev/null \
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|| return 1
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start-stop-daemon --start --quiet --pidfile $PID --exec $DAEMON -- \
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$DAEMON_OPTS 2>/dev/null \
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|| return 2
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}
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test_config() {
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# Test the nginx configuration
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$DAEMON -t $DAEMON_OPTS >/dev/null 2>&1
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}
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stop_nginx() {
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# Stops the daemon/service
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#
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# Return
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# 0 if daemon has been stopped
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# 1 if daemon was already stopped
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# 2 if daemon could not be stopped
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# other if a failure occurred
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start-stop-daemon --stop --quiet --retry=$STOP_SCHEDULE --pidfile $PID --name $NAME
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RETVAL="$?"
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sleep 1
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return "$RETVAL"
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}
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reload_nginx() {
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# Function that sends a SIGHUP to the daemon/service
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start-stop-daemon --stop --signal HUP --quiet --pidfile $PID --name $NAME
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return 0
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}
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rotate_logs() {
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# Rotate log files
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start-stop-daemon --stop --signal USR1 --quiet --pidfile $PID --name $NAME
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return 0
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}
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upgrade_nginx() {
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# Online upgrade nginx executable
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# http://nginx.org/en/docs/control.html
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#
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# Return
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# 0 if nginx has been successfully upgraded
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# 1 if nginx is not running
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# 2 if the pid files were not created on time
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# 3 if the old master could not be killed
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if start-stop-daemon --stop --signal USR2 --quiet --pidfile $PID --name $NAME; then
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# Wait for both old and new master to write their pid file
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while [ ! -s "${PID}.oldbin" ] || [ ! -s "${PID}" ]; do
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cnt=`expr $cnt + 1`
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if [ $cnt -gt 10 ]; then
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return 2
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fi
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sleep 1
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done
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# Everything is ready, gracefully stop the old master
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if start-stop-daemon --stop --signal QUIT --quiet --pidfile "${PID}.oldbin" --name $NAME; then
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return 0
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else
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return 3
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fi
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else
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return 1
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fi
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}
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case "$1" in
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start)
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log_daemon_msg "Starting $DESC" "$NAME"
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start_nginx
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case "$?" in
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0|1) log_end_msg 0 ;;
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2) log_end_msg 1 ;;
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esac
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;;
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stop)
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log_daemon_msg "Stopping $DESC" "$NAME"
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stop_nginx
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case "$?" in
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0|1) log_end_msg 0 ;;
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2) log_end_msg 1 ;;
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esac
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;;
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restart)
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log_daemon_msg "Restarting $DESC" "$NAME"
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# Check configuration before stopping nginx
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if ! test_config; then
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log_end_msg 1 # Configuration error
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exit $?
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fi
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stop_nginx
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case "$?" in
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0|1)
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start_nginx
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case "$?" in
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0) log_end_msg 0 ;;
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1) log_end_msg 1 ;; # Old process is still running
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*) log_end_msg 1 ;; # Failed to start
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esac
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;;
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*)
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# Failed to stop
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log_end_msg 1
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;;
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esac
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;;
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reload|force-reload)
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log_daemon_msg "Reloading $DESC configuration" "$NAME"
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# Check configuration before stopping nginx
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#
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# This is not entirely correct since the on-disk nginx binary
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# may differ from the in-memory one, but that's not common.
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# We prefer to check the configuration and return an error
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# to the administrator.
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if ! test_config; then
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log_end_msg 1 # Configuration error
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exit $?
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fi
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reload_nginx
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log_end_msg $?
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;;
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configtest|testconfig)
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log_daemon_msg "Testing $DESC configuration"
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test_config
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log_end_msg $?
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;;
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status)
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status_of_proc -p $PID "$DAEMON" "$NAME" && exit 0 || exit $?
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;;
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upgrade)
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log_daemon_msg "Upgrading binary" "$NAME"
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upgrade_nginx
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log_end_msg $?
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;;
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rotate)
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log_daemon_msg "Re-opening $DESC log files" "$NAME"
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rotate_logs
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log_end_msg $?
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;;
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*)
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echo "Usage: $NAME {start|stop|restart|reload|force-reload|status|configtest|rotate|upgrade}" >&2
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exit 3
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;;
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esac
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