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1#! /bin/sh
2### BEGIN INIT INFO
3# Provides:          nginx
4# Required-Start:    $remote_fs $syslog
5# Required-Stop:     $remote_fs $syslog
6# Default-Start:     2 3 4 5
7# Default-Stop:      0 1 6
8# Short-Description: nginx init.d dash script for Ubuntu or other *nix.
9# Description:       nginx init.d dash script for Ubuntu or other *nix.
10### END INIT INFO
11#------------------------------------------------------------------------------
12# nginx - this Debian Almquist shell (dash) script, starts and stops the nginx
13#         daemon for Ubuntu and other *nix releases.
14#
15# description:  Nginx is an HTTP(S) server, HTTP(S) reverse \
16#               proxy and IMAP/POP3 proxy server.  This \
17#               script will manage the initiation of the \
18#               server and it's process state.
19#
20# processname: nginx
21# config:      /usr/local/nginx/conf/nginx.conf
22# pidfile:     /usr/local/nginx/logs/nginx.pid
23# Provides:    nginx
24#
25# Author:  Jason Giedymin
26#          <jason.giedymin AT gmail.com>.
27#
28# Version: 3.9.0 12-MAY-2015 jason.giedymin AT gmail.com
29# Notes: nginx init.d dash script for Ubuntu.
30# Tested with: Ubuntu 14.10, nginx-1.7.9
31#
32# This script's project home is:
33#   http://github.com/JasonGiedymin/nginx-init-ubuntu
34#
35#------------------------------------------------------------------------------
36#                               MIT X11 License
37#------------------------------------------------------------------------------
38#
39# Copyright (c) 2008-2013 Jason Giedymin, http://jasongiedymin.com
40#
41# Permission is hereby granted, free of charge, to any person obtaining
42# a copy of this software and associated documentation files (the
43# "Software"), to deal in the Software without restriction, including
44# without limitation the rights to use, copy, modify, merge, publish,
45# distribute, sublicense, and/or sell copies of the Software, and to
46# permit persons to whom the Software is furnished to do so, subject to
47# the following conditions:
48#
49# The above copyright notice and this permission notice shall be
50# included in all copies or substantial portions of the Software.
51#
52# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
53# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
54# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
55# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
56# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
57# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
58# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
59#------------------------------------------------------------------------------
60
61#------------------------------------------------------------------------------
62#                               Functions
63#------------------------------------------------------------------------------
64LSB_FUNC=/lib/lsb/init-functions
65
66# Test that init functions exists
67test -r $LSB_FUNC || {
68    echo "$0: Cannot find $LSB_FUNC! Script exiting." 1>&2
69    exit 5
70}
71
72. $LSB_FUNC
73
74#------------------------------------------------------------------------------
75#                               Consts
76#------------------------------------------------------------------------------
77# Include nginx defaults if available
78if [ -f /etc/default/nginx ]; then
79    . /etc/default/nginx
80fi
81
82# Minimize path
83PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
84
85PS=${PS:-"nginx"}                             # process name
86DESCRIPTION=${DESCRIPTION:-"NginX Streaming Server"} # process description
87NGINXPATH=${NGINXPATH:-/etc/nginx}      # root path where installed
88DAEMON=${DAEMON:-/usr/sbin/nginx}       # path to daemon binary
89NGINX_CONF_FILE=${NGINX_CONF_FILE:-$NGINXPATH/nginx.conf} # config file path
90
91PIDNAME=${PIDNAME:-"nginx"}                   # lets you do $PS-slave
92PIDFILE=${PIDFILE:-$PIDNAME.pid}              # pid file
93PIDSPATH=${PIDSPATH:-/var/log/nginx}         # default pid location, you should change it
94RUNAS=${RUNAS:-root}                          # user to run as
95
96SCRIPT_OK=0           # ala error codes
97SCRIPT_ERROR=1        # ala error codes
98TRUE=1                # boolean
99FALSE=0               # boolean
100
101#------------------------------------------------------------------------------
102#                               Simple Tests
103#------------------------------------------------------------------------------
104
105# Test if nginx is a file and executable
106test -x $DAEMON || {
107    echo "$0: You don't have permissions to execute nginx." 1>&2
108    exit 4
109}
110
111# You can also set your conditions like so:
112# set exit condition
113# set -e
114
115#------------------------------------------------------------------------------
116#                               Functions
117#------------------------------------------------------------------------------
118
119setFilePerms(){
120    if [ -f $PIDSPATH/$PIDFILE ]; then
121        chmod 400 $PIDSPATH/$PIDFILE
122    fi
123}
124
125configtest() {
126    $DAEMON -t -c $NGINX_CONF_FILE
127}
128
129getPSCount() {
130    return `pgrep -f $PS | wc -l`
131}
132
133isRunning() {
134    if [ $1 ]; then
135        pidof_daemon $1
136        PID=$?
137
138        if [ $PID -gt 0 ]; then
139            return 1
140        else
141            return 0
142        fi
143    else
144        pidof_daemon
145        PID=$?
146
147        if [ $PID -gt 0 ]; then
148            return 1
149        else
150            return 0
151        fi
152    fi
153}
154
155#courtesy of php-fpm
156wait_for_pid () {
157    try=0
158
159    while test $try -lt 35 ; do
160        case "$1" in
161            'created')
162            if [ -f "$2" ]; then
163                try=''
164                break
165            fi
166            ;;
167
168            'removed')
169            if [ ! -f "$2" ]; then
170                try=''
171                break
172            fi
173            ;;
174        esac
175
176        try=`expr $try + 1`
177        sleep 1
178    done
179}
180
181status(){
182    isRunning
183    isAlive=$?
184
185    if [ "${isAlive}" -eq $TRUE ]; then
186        log_warning_msg "$DESCRIPTION found running with processes:  `pidof $PS`"
187        rc=0
188    else
189        log_warning_msg "$DESCRIPTION is NOT running."
190        rc=3
191    fi
192
193    return
194}
195
196removePIDFile(){
197    if [ $1 ]; then
198        if [ -f $1 ]; then
199            rm -f $1
200        fi
201    else
202        #Do default removal
203        if [ -f $PIDSPATH/$PIDFILE ]; then
204            rm -f $PIDSPATH/$PIDFILE
205        fi
206    fi
207}
208
209start() {
210    log_daemon_msg "Starting $DESCRIPTION"
211
212    isRunning
213    isAlive=$?
214
215    if [ "${isAlive}" -eq $TRUE ]; then
216        log_end_msg $SCRIPT_ERROR
217        rc=0
218    else
219        start-stop-daemon --start --quiet --chuid \
220        $RUNAS --pidfile $PIDSPATH/$PIDFILE --exec $DAEMON \
221        -- -c $NGINX_CONF_FILE
222        status=$?
223        setFilePerms
224
225        if [ "${status}" -eq 0 ]; then
226            log_end_msg $SCRIPT_OK
227            rc=0
228        else
229            log_end_msg $SCRIPT_ERROR
230            rc=7
231        fi
232    fi
233
234    return
235}
236
237stop() {
238    log_daemon_msg "Stopping $DESCRIPTION"
239
240    isRunning
241    isAlive=$?
242
243    if [ "${isAlive}" -eq $TRUE ]; then
244        start-stop-daemon --stop --quiet --pidfile $PIDSPATH/$PIDFILE
245
246        wait_for_pid 'removed' $PIDSPATH/$PIDFILE
247
248        if [ -n "$try" ]; then
249            log_end_msg $SCRIPT_ERROR
250            rc=0 # lsb states 1, but under status it is 2 (which is more prescriptive). Deferring to standard.
251        else
252            removePIDFile
253            log_end_msg $SCRIPT_OK
254            rc=0
255        fi
256    else
257        log_end_msg $SCRIPT_ERROR
258        rc=7
259    fi
260
261    return
262}
263
264reload() {
265    configtest || return $?
266
267    log_daemon_msg "Reloading (via HUP) $DESCRIPTION"
268
269    isRunning
270
271    if [ $? -eq $TRUE ]; then
272        kill -HUP `cat $PIDSPATH/$PIDFILE`
273        log_end_msg $SCRIPT_OK
274        rc=0
275    else
276        log_end_msg $SCRIPT_ERROR
277        rc=7
278    fi
279
280    return
281}
282
283quietupgrade() {
284    log_daemon_msg "Peforming Quiet Upgrade $DESCRIPTION"
285
286    isRunning
287    isAlive=$?
288
289    if [ "${isAlive}" -eq $TRUE ]; then
290        kill -USR2 `cat $PIDSPATH/$PIDFILE`
291        kill -WINCH `cat $PIDSPATH/$PIDFILE.oldbin`
292
293        isRunning
294        isAlive=$?
295
296        if [ "${isAlive}" -eq $TRUE ]; then
297            kill -QUIT `cat $PIDSPATH/$PIDFILE.oldbin`
298            wait_for_pid 'removed' $PIDSPATH/$PIDFILE.oldbin
299            removePIDFile $PIDSPATH/$PIDFILE.oldbin
300
301            log_end_msg $SCRIPT_OK
302            rc=0
303        else
304            log_end_msg $SCRIPT_ERROR
305
306            log_daemon_msg "ERROR! Reverting back to original $DESCRIPTION"
307
308            kill -HUP `cat $PIDSPATH/$PIDFILE`
309            kill -TERM `cat $PIDSPATH/$PIDFILE.oldbin`
310            kill -QUIT `cat $PIDSPATH/$PIDFILE.oldbin`
311
312            wait_for_pid 'removed' $PIDSPATH/$PIDFILE.oldbin
313            removePIDFile $PIDSPATH/$PIDFILE.oldbin
314
315            log_end_msg $SCRIPT_OK
316            rc=0
317        fi
318    else
319        log_end_msg $SCRIPT_ERROR
320        rc=7
321    fi
322
323    return
324}
325
326terminate() {
327    log_daemon_msg "Force terminating (via KILL) $DESCRIPTION"
328
329    PIDS=`pidof $PS` || true
330
331    [ -e $PIDSPATH/$PIDFILE ] && PIDS2=`cat $PIDSPATH/$PIDFILE`
332
333    for i in $PIDS; do
334        if [ "$i" = "$PIDS2" ]; then
335            kill $i
336            wait_for_pid 'removed' $PIDSPATH/$PIDFILE
337            removePIDFile
338        fi
339    done
340
341    log_end_msg $SCRIPT_OK
342    rc=0
343}
344
345destroy() {
346    log_daemon_msg "Force terminating and may include self (via KILLALL) $DESCRIPTION"
347    killall $PS -q >> /dev/null 2>&1
348    log_end_msg $SCRIPT_OK
349    rc=0
350}
351
352pidof_daemon() {
353    PIDS=`pidof $PS` || true
354
355    [ -e $PIDSPATH/$PIDFILE ] && PIDS2=`cat $PIDSPATH/$PIDFILE`
356
357    for i in $PIDS; do
358        if [ "$i" = "$PIDS2" ]; then
359            return 1
360        fi
361    done
362
363    return 0
364}
365
366action="$1"
367case "$1" in
368    start)
369        start
370        ;;
371    stop)
372        stop
373        ;;
374    restart|force-reload)
375        stop
376        # if [ $rc -ne 0 ]; then
377        #     script_exit
378        # fi
379        sleep 1
380        start
381        ;;
382    reload)
383        $1
384        ;;
385    status)
386        status
387        ;;
388    configtest)
389        $1
390        ;;
391    quietupgrade)
392        $1
393        ;;
394    terminate)
395        $1
396        ;;
397    destroy)
398        $1
399        ;;
400    *)
401        FULLPATH=/etc/init.d/$PS
402        echo "Usage: $FULLPATH {start|stop|restart|force-reload|reload|status|configtest|quietupgrade|terminate|destroy}"
403        echo "       The 'destroy' command should only be used as a last resort."
404        exit 3
405        ;;
406esac
407
408exit $rc