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1 | #!/bin/sh | |
2 | # | |
3 | # nginx Nginx Web Server (@type@ version) | |
4 | # | |
5 | # chkconfig: 345 85 15 | |
6 | # description: Nginx is an HTTP(S) server, HTTP(S) reverse \ | |
7 | # proxy and IMAP/POP3 proxy server | |
8 | # processname: nginx | |
9 | # pidfile: /var/run/nginx.pid | |
10 | # config: /etc/nginx/nginx.conf | |
11 | ||
12 | # Source function library | |
13 | . /etc/rc.d/init.d/functions | |
14 | ||
15 | # Source networking configuration. | |
16 | . /etc/sysconfig/network | |
17 | ||
18 | nginx="/usr/sbin/nginx" | |
19 | svname="nginx" | |
20 | prog=${nginx##*/} | |
21 | ||
22 | sysconfig="/etc/sysconfig/$prog" | |
23 | lockfile="/var/lock/subsys/$prog" | |
24 | pidfile="/var/run/$prog.pid" | |
25 | ||
26 | NGINX_CONF_FILE="/etc/nginx/$prog.conf" | |
27 | ||
28 | # Get service config | |
29 | [ -f $sysconfig ] && . $sysconfig | |
30 | ||
31 | # Check that networking is up. | |
32 | if is_yes "${NETWORKING}"; then | |
33 | if [ ! -f /var/lock/subsys/network -a "$1" != stop -a "$1" != status ]; then | |
34 | msg_network_down "$svname" | |
35 | exit 1 | |
36 | fi | |
37 | else | |
38 | exit 0 | |
39 | fi | |
40 | ||
41 | # configtest itself | |
42 | # must return non-zero if check failed | |
43 | # output is discarded if checkconfig is ran without details | |
44 | configtest() { | |
45 | $nginx -t -c $NGINX_CONF_FILE | |
46 | } | |
47 | ||
48 | # wrapper for configtest | |
49 | checkconfig() { | |
50 | local details=${1:-0} | |
51 | ||
52 | if [ $details = 1 ]; then | |
53 | # run config test and display report (status action) | |
54 | show "Checking %s configuration" "$svname"; busy | |
55 | local out | |
56 | out=$(configtest 2>&1) | |
57 | RETVAL=$? | |
58 | if [ $RETVAL = 0 ]; then | |
59 | ok | |
60 | else | |
61 | fail | |
62 | fi | |
63 | [ "$out" ] && echo >&2 "$out" | |
64 | else | |
65 | # run config test and abort with nice message if failed | |
66 | # (for actions checking status before action). | |
67 | configtest >/dev/null 2>&1 | |
68 | RETVAL=$? | |
69 | if [ $RETVAL != 0 ]; then | |
70 | show "Checking %s configuration" "$svname"; fail | |
71 | nls 'Configuration test failed. See details with %s "checkconfig"' $0 | |
72 | exit $RETVAL | |
73 | fi | |
74 | fi | |
75 | } | |
76 | ||
77 | start() { | |
78 | # Check if the service is already running? | |
79 | if [ ! -f $lockfile ]; then | |
80 | checkconfig | |
81 | msg_starting "$svname" | |
82 | daemon $nginx -c $NGINX_CONF_FILE | |
83 | RETVAL=$? | |
84 | [ $RETVAL -eq 0 ] && touch $lockfile | |
85 | else | |
86 | msg_already_running "$svname" | |
87 | fi | |
88 | } | |
89 | ||
90 | stop() { | |
91 | local oldbin_pidfile="${pidfile}.oldbin" | |
92 | ||
93 | # Stop daemons. | |
94 | if [ -f $lockfile ]; then | |
95 | if [ -f $oldbin_pidfile ] && [ -f $pidfile ]; then | |
96 | msg_stopping "$svname (old process)" | |
97 | killproc -p $oldbin_pidfile $prog -TERM | |
98 | fi | |
99 | msg_stopping "$svname" | |
100 | killproc -p $pidfile $prog | |
101 | RETVAL=$? | |
102 | rm -f $lockfile $pidfile >/dev/null 2>&1 | |
103 | else | |
104 | msg_not_running "$svname" | |
105 | fi | |
106 | } | |
107 | ||
108 | reload() { | |
109 | if [ -f $lockfile ]; then | |
110 | checkconfig | |
111 | msg_reloading "$svname" | |
112 | killproc -p $pidfile $prog -HUP | |
113 | RETVAL=$? | |
114 | else | |
115 | msg_not_running "$svname" | |
116 | RETVAL=7 | |
117 | fi | |
118 | } | |
119 | ||
120 | condrestart() { | |
121 | if [ ! -f $lockfile ]; then | |
122 | msg_not_running "$svname" | |
123 | RETVAL=$1 | |
124 | return | |
125 | fi | |
126 | ||
127 | checkconfig | |
128 | stop | |
129 | start | |
130 | } | |
131 | ||
132 | # Upgrade the binary with no downtime. | |
133 | # http://nginx.org/en/docs/control.html#upgrade | |
134 | # TODO: handle revert back on failed upgrade | |
135 | upgrade() { | |
136 | local oldbin_pidfile="${pidfile}.oldbin" retry | |
137 | ||
138 | checkconfig | |
139 | show "Upgrading $svname" | |
140 | killproc -p $pidfile $prog -USR2 | |
141 | RETVAL=$? | |
142 | ||
143 | # wait for 15s | |
144 | retry=60 | |
145 | while [ $retry -gt 0 ]; do | |
146 | if [ -f $oldbin_pidfile ] && [ -f $pidfile ]; then | |
147 | show "Upgrade: stopping old process" | |
148 | killproc -p $oldbin_pidfile $prog -QUIT | |
149 | return 0 | |
150 | else | |
151 | usleep 250000 | |
152 | retry=$(($retry -1)) | |
153 | fi | |
154 | done | |
155 | ||
156 | show "Upgrade: stopping old process"; fail | |
157 | nls 'old process pid file was not found' | |
158 | return 1 | |
159 | } | |
160 | ||
161 | # Tell nginx to reopen logs | |
162 | # http://nginx.org/en/docs/control.html#logs | |
163 | reopen_logs() { | |
164 | local oldbin_pidfile="${pidfile}.oldbin" | |
165 | ||
166 | if [ -f $oldbin_pidfile ]; then | |
167 | show "Reopening $svname (oldbin) logs" | |
168 | killproc -p $oldbin_pidfile $prog -USR1 | |
169 | fi | |
170 | ||
171 | show "Reopening $svname logs" | |
172 | killproc -p $pidfile $prog -USR1 | |
173 | } | |
174 | ||
175 | RETVAL=0 | |
176 | # See how we were called. | |
177 | case "$1" in | |
178 | start) | |
179 | start | |
180 | ;; | |
181 | stop) | |
182 | stop | |
183 | ;; | |
184 | restart) | |
185 | checkconfig | |
186 | stop | |
187 | start | |
188 | ;; | |
189 | try-restart) | |
190 | condrestart 0 | |
191 | ;; | |
192 | reload|graceful) | |
193 | reload | |
194 | ;; | |
195 | force-reload|upgrade) | |
196 | upgrade | |
197 | ;; | |
198 | reopen-logs) | |
199 | reopen_logs | |
200 | ;; | |
201 | checkconfig|configtest) | |
202 | checkconfig 1 | |
203 | ;; | |
204 | status) | |
205 | status --pidfile $pidfile $prog | |
206 | RETVAL=$? | |
207 | ;; | |
208 | *) | |
209 | msg_usage "$0 {start|stop|restart|try-restart|reload|force-reload|graceful|reopen-logs|checkconfig|status}" | |
210 | exit 3 | |
211 | ;; | |
212 | esac | |
213 | ||
214 | exit $RETVAL |