bash 腳本編程二十一 MongoDB自動部署

這是單機版本的MongoDB自動部署，手動部署可以參考我的另一篇文章：http://www.linuxidc.com/Linux/2012-09/71132.htm

首先下載mongodb-linux-x86_64-2.2.0.tgz, 解壓後放到工程目錄mongodb下。

然後准備啟動腳本mongodb:

1. #!/bin/sh
3. ### BEGIN INIT INFO
4. # Provides: mongodb
5. # Required-Start:
6. # Required-Stop:
7. # Default-Start: 2 3 4 5
8. # Default-Stop: 0 1 6
9. # Short-Description: mongodb
10. # Description: mongo db server
11. ### END INIT INFO
13. . /lib/lsb/init-functions
15. PROGRAM=/usr/mongodb/bin/mongod
16. MONGOPID=`ps -ef | grep 'mongod' | grep -v grep | awk '{print $2}'`
18. test -x $PROGRAM || exit 0
20. case "$1" in
21. start)
22. ulimit -n 3000
23. log_begin_msg "Starting MongoDB server"
24. $PROGRAM --fork --quiet -journal -maxConns=100 -rest --logpath /data/db/journal/mongdb.log
25. log_end_msg 0
26. ;;
27. stop)
28. log_begin_msg "Stopping MongoDB server"
29. if [ ! -z "$MONGOPID" ]; then
30. kill -15 $MONGOPID
31. fi
32. log_end_msg 0
33. ;;
34. status)
35. ;;
36. *)
37. log_success_msg "Usage: /etc/init.d/mongodb {start|stop|status}"
38. exit 1
39. esac
41. exit 0

最後看一下install.sh

1. #!/bin/bash
3. source ../common/tool.sh
5. copyFolder ./mongodb-linux-x86_64-2.2.0 /usr/mongodb-linux-x86_64-2.2.0
6. createLink "./mongodb-linux-x86_64-2.2.0" "/usr/mongodb"
7. createFolder "/data/db/journal"
8. chmod -R 777 /data/db/
9. copyFile mongodb $PWD /etc/init.d
10. chmod +x /etc/init.d/mongodb
11. update-rc.d mongodb defaults
12. service mongodb start

看一下目前經常用到的common/tool.sh腳本的全貌：

1. #!/bin/bash
3. function removeFolder {
5. if [ -d "$1" ]
6. then
7. echo "$2 folder exists already, remove it..."
8. rm -rf $1
9. else
10. echo "$2 folder doesn't exists"
11. fi
12. }
14. #$1 src folder
15. #$2 dst folder
16. function copyFolder {
18. if [ -d "$2" ]
19. then
20. echo "$2 folder exists already, remove it..."
21. rm -rf $2
22. else
23. echo "$2 folder doesn't exists, start copying..."
24. fi
25. cp -r $1 $2
26. }
29. #remove the folder if exists already
30. #$1 folder path
31. function createFolder {
33. if [ -d "$1" ]
34. then
35. echo "$1 folder exists already, remove it..."
36. rm -rf $1
37. else
38. echo "$1 folder doesn't exists, create it..."
39. fi
40. mkdir -p $1
41. }
43. #remove the link if exists already
44. #create a link($2) to file($1)
45. function createLink {
47. if [ -L "$2" ]
48. then
49. echo "$2 link exists already, removing it..."
50. rm $2
51. else
52. echo "$2 link doesn't exists, creating it..."
53. fi
54. echo "creating link: $2 to $1"
55. ln -s $1 $2
56. }
58. #$1 source file name
59. #$2 source folder
60. #$3 destion folder
61. #remove the file if exists already
62. #create a file
63. function copyFile {
64. if [ -f "$3/$1" ]
65. then
66. echo "$3/$1 exists already, removing it..."
67. rm $3/$1
68. else
69. echo "$3/$1 doesn't exists, copying it..."
70. fi
71. cp $2/$1 $3
72. }
77. # $1 variable name
78. # $2 expected value
79. # put this into /etc/environment if not found
80. function setEnv {
81. source /etc/environment
82. if [ "${!1}" = "$2" ]
83. then
84. echo "$1 is correct: $2"
85. else
86. echo "$1 is wrong: ${!1} != $2"
88. h=`grep "$1=\"$2\"" /etc/environment`
89. if [ -n "$h" ]
90. then
91. echo "/etc/environment has $1 already"
92. else
93. echo "Adding $1 into /etc/environment..."
94. echo "$1=\"$2\"" >> /etc/environment
95. fi
96. source /etc/environment
97. fi
98. }
100. #$1 means the full name of dpkg
101. #return 1 if dpkg is installed (found 'ii dpkg-name' in the returned string)
102. #otherwise return 0
103. function hasDpkg {
104. r=`dpkg -l | grep "$1"`
105. if [ -n "$r" ]
106. then
107. h=`dpkg -l | grep "ii $1"`
108. if [ -n "$h" ]
109. then
110. return 1
111. else
112. return 0
113. fi
114. else
115. return 0
116. fi
117. }
119. #$1 search string
120. #$2 file path
121. #return 1 if found
122. #return 0 if not found
123. function findStringInFile {
124. h=`grep "$1" $2`
125. echo "h: $h"
126. if [ -n "$h" ]
127. then
128. return 1
129. else
130. return 0
131. fi
132. }
135. #$1 dpkg name
136. function installDpkg {
137. hasDpkg $1
138. r=$?
140. if [ $r -eq 1 ]
141. then
142. echo "$1 was installed"
143. else
144. echo "$1 was not installed, installing..."
145. apt-get install $1
146. fi
147. }
149. #$1 user name
150. #return 1 if exists
151. #return 0 if doesn't exist
152. function haSUSEr {
153. h=`grep "$1" /etc/passwd`
154. echo "h: $h"
155. if [ -n "$h" ]
156. then
157. return 1
158. else
159. return 0
160. fi
161. }
163. #$1 user group name
164. #return 1 if exists
165. #return 0 if doesn't exist
166. function hasUserGroup {
167. h=`grep "$1" /etc/group`
168. echo "h: $h"
169. if [ -n "$h" ]
170. then
171. return 1
172. else
173. return 0
174. fi
175. }
177. #remove user and home folder
178. #then create then again
179. function recreateSystemUserAndFolder {
180. hasUser $1
181. r=$?
183. if [ $r -eq 1 ]
184. then
185. echo "$1 exits already,remove it..."
186. userdel -r $1
187. else
188. echo "$1 doesn't exist,create it..."
189. fi
190. adduser --home /home/$1 --system --shell /bin/bash $1
191. }
193. #remove user group
194. #then create it again
195. function recreateUserGroup {
196. hasUserGroup $1
197. r=$?
198. if [ $r -eq 1 ]
199. then
200. echo "$1 exists already, remove it..."
201. delgroup $1
202. else
203. echo "$1 doesn't exist, create it..."
204. fi
205. groupadd $1
206. }