首页 > 代码库 > linux服务脚本编写

linux服务脚本编写

2024-10-05 17:03:02   215人阅读

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
 
#!/bin/bash
 
### BEGIN INIT INFO
# Provides: 应用程序开发者
# RequiRED-Start: $all
# RequiRED-Stop: $all
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: 简短应用程序描述
# Description: 详细应用程序描述
### END INIT INFO
 
# 程序文件目录
ROOT="/work/code/cusflo-server-moon"
# 程序文件
APP="./dog/client_update_dog.py"
# 程序配置文件
CONFIG="./server_config.ini"
# 服务日志
DEFAULT_LOG_FILE=‘./daodaoliang.log‘
 
# 样式定制
RED="\\e[31m"
GREEN="\\e[32m"
YELLOW="\\e[33m"
BLACK="\\e[0m"
POS="\\e[60G"
 
ok_msg() {
echo -e "${1}${POS}${BLACK}[${GREEN} OK ${BLACK}]"
}
 
failed_msg() {
echo -e "${1}${POS}${BLACK}[${RED}FAILED${BLACK}]"
}
 
# load process info of app
# exist return 0
# no exist return 1
load_process_info() {
# get pid
app_pid=$(ps -ef|grep ${APP}|gawk ‘$0 !~/grep/ {print $2}‘ |tr -s ‘\n‘ ‘ ‘)
# check pid again
ps -p ${app_pid} >/dev/null 2>/dev/null
ret=$?; if [[ 0 -ne $ret ]]; then error_msg="process $app_pid does not exists"; return 1; fi
return 0;
}
 
start() {
# if exists, exit.
load_process_info
if [[ 0 -eq $? ]]; then failed_msg "${APP} started(pid ${app_pid}), should not start it again."; return 0; fi
 
# not exists, start server
ok_msg "Starting ${APP}..."
 
# get log file
log_file=`cd ${ROOT} && cat ${CONFIG} |grep ‘^log_file‘| awk ‘{print $2}‘| awk -F ‘;‘ ‘{print $1}‘`
if [[ -z $log_file ]]; then log_file=${DEFAULT_LOG_FILE}; fi
# get abs path
log_dir=`dirname $log_file`
log_file=`(cd ${ROOT} && cd $log_dir && pwd)`/`basename $log_file`
 
# TODO: FIXME: set limit by, for instance, "ulimit -HSn 10000"
if [[ -z $log_file ]]; then
(cd ${ROOT};nohup python ${APP} >/dev/null 2>&1 &)
else
(cd ${ROOT};nohup python ${APP} >/dev.null >> $log_file 2>&1 &)
fi
 
# check again after start server
for ((i = 0; i < 5; i++)); do
# sleep a little while, for app may start then crash.
sleep 0.1
load_process_info
ret=$?; if [[ 0 -ne $ret ]]; then
failed_msg "${APP} start failed";
failed_msg "see $log_file";
return $ret;
fi
done
 
# check whether started.
load_process_info
ret=$?; if [[ 0 -eq $? ]]; then ok_msg "${APP} started(pid ${app_pid})"; return 0; fi
 
failed_msg "${APP} not started"
return $ret
}
 
stop() {
# not start, exit
load_process_info
if [[ 0 -ne $? ]]; then failed_msg "${APP} not start."; return 0; fi
 
ok_msg "Stopping ${APP}(pid ${app_pid})..."
 
# process exists, try to kill to stop normally
for((i=0;i<30;i++)); do
load_process_info
if [[ 0 -eq $? ]]; then
kill -s SIGTERM ${app_pid} 2>/dev/null
ret=$?; if [[ 0 -ne $ret ]]; then failed_msg "send signal SIGTERM failed ret=$ret"; return $ret; fi
sleep 0.1
else
ok_msg "${APP} stopped by SIGTERM"
# delete the pid file when stop success.
rm -f ${pid_file}
break;
fi
done
 
# process exists, use kill -9 to force to exit
load_process_info
if [[ 0 -eq $? ]]; then
kill -s SIGKILL ${app_pid} 2>/dev/null
ret=$?; if [[ 0 -ne $ret ]]; then failed_msg "send signal SIGKILL failed ret=$ret"; return $ret; fi
ok_msg "${APP} stopped by SIGKILL"
else
# delete the pid file when stop success.
rm -f ${pid_file}
fi
 
sleep 0.1
return 0
}
 
# get the status of srs process
# @return 0 if srs is running; otherwise, 1 for stopped.
status() {
load_process_info
ret=$?; if [[ 0 -eq $ret ]]; then echo "${APP}(pid ${app_pid}) is running."; return 0; fi
 
echo "${APP} is stopped, $error_msg"
return 1
}
 
menu() {
case "$1" in
start)
start
;;
stop)
stop
;;
restart)
stop
start
;;
status)
status
;;
*)
echo "Usage: $0 {start|stop|status|restart}"
return 1
;;
esac
}
 
menu $1
 
code=$?
exit ${code}
 
 
 
 
http://daodaoliang.com/linux%E5%AD%A6%E4%B9%A0/2015/02/04/linux%E5%AD%A6%E4%B9%A0-2015-02-04-%E6%9C%8D%E5%8A%A1%E8%84%9A%E6%9C%AC%E7%BC%96%E5%86%99/

linux服务脚本编写


联系
我们