依据前文《通过Git WebHooks+脚本实现自动更新发布代码》的解决方案编写的shell脚本，此脚本专门用于更新补丁文件，例如对项目中的文件实现增（add）、删（remove）、改（update），并且执行相关的命令，如清除缓存、重启服务等。
此Shell脚本目前设计成在本地执行，目前不适合分布式执行的情况。也就是说，此脚本最好与项目在同一个机器上，这个缺陷已经标注在脚本中了，参见脚本中的多个TODO。
脚本完成的工作：
-
检查配置文件合规性
-
备份与恢复
-
增删改文件
-
执行命令
-
失败回滚
除上述完成的功能外，因为不同的项目其用到的命令或所需要执行的操作以及检查成功与否大有不同，因此其他的功能需要可以继续往上添加，需要的可以自行修改此脚本。此脚本仅作参考之用，欢迎提出改进意见、批评指正。
此脚本可以略做修改，与前文《通过Git WebHooks+脚本实现自动更新发布代码之shell脚本》提到的部署脚本一起联用。后期改进请关注github。
脚本如下：
|
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
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
|
#!/usr/bin/env bash
# Public header
# =============================================================================================================================
# Check that we are root ... so non-root users stop here
[ `
id
-u` -
eq
"0"
] ||
exit
4
# resolve links - $0 may be a symbolic link
PRG=
"$0"
while
[ -h
"$PRG"
];
do
ls
=`
ls
-ld
"$PRG"
`
link=`
expr
"$ls"
:
'.*-> \(.*\)$'
`
if
expr
"$link"
:
'/.*'
>
/dev/null
;
then
PRG=
"$link"
else
PRG=`
dirname
"$PRG"
`/
"$link"
fi
done
# Get standard environment variables
PRGDIR=`
dirname
"$PRG"
`
# echo color function
function
cecho {
# Usage:
# cecho -red sometext #Error, Failed
# cecho -green sometext # Success
# cecho -yellow sometext # Warning
# cecho -blue sometext # Debug
# cecho -white sometext # info
# cecho -n # new line
# end
while
[
"$1"
];
do
case
"$1"
in
-normal) color=
"\033[00m"
;;
# -black) color="\033[30;01m" ;;
-red) color=
"\033[31;01m"
;;
-green) color=
"\033[32;01m"
;;
-yellow) color=
"\033[33;01m"
;;
-blue) color=
"\033[34;01m"
;;
# -magenta) color="\033[35;01m" ;;
# -cyan) color="\033[36;01m" ;;
-white) color=
"\033[37;01m"
;;
-n) one_line=1;
shift
;
continue
;;
*)
echo
-n
"$1"
;
shift
;
continue
;;
esac
shift
echo
-en
"$color"
echo
-en
"$1"
echo
-en
"\033[00m"
shift
done
if
[ ! $one_line ];
then
echo
fi
}
# end echo color function
# echo color function, smarter
function
echo_r () {
#Error, Failed
[ $
# -ne 1 ] && return 0
echo
-e
"\033[31m$1\033[0m"
}
function
echo_g () {
# Success
[ $
# -ne 1 ] && return 0
echo
-e
"\033[32m$1\033[0m"
}
function
echo_y () {
# Warning
[ $
# -ne 1 ] && return 0
echo
-e
"\033[33m$1\033[0m"
}
function
echo_b () {\
# Debug
[ $
# -ne 1 ] && return 0
echo
-e
"\033[34m$1\033[0m"
}
# end echo color function, smarter
WORKDIR=$PRGDIR
# end public header
# =============================================================================================================================
# begin customization for special case
# project directory to waiting for update
config_project_dir=example_projects
# resources directory which contain config file and update files
config_resources_dir=example_resources
config_config_file=$config_resources_dir
/config_update
.conf
config_backup_dir=example_backup_dir
# log options
config_this_logfile=$WORKDIR/.update_backup.log
# end
function
check_dependencies(){
echo_b
"Checking dependencies for update procedure. "
if
[ -z $config_project_dir ];
then
echo_r
"Error: config_project_dir is undefined! "
exit
1
fi
if
[ ! -d $config_resources_dir ];
then
echo_r
"Error: config_resources_dir is undefined! "
fi
if
[ -z $config_config_file ];
then
echo_r
"Error: config_config_file is undefined! "
exit
1
fi
left_disk_space=`
df
$config_backup_dir |
tail
-n1 |
awk
'{print $(NF -2)}'
`
# set 2097152 to project directory size
if
[ -z $config_project_dir -o ! -d $config_project_dir ];
then
project_file_space_usage=$(
du
-s
/root
|
awk
'{print $1}'
)
required_size=$(
expr
$project_file_space_usage \* 2)
fi
if
[[ $left_disk_space -lt $required_size ]];
then
echo_r
"Disk space of $config_backup_dir is smaller than $required_size. "
exit
1
fi
echo_g
"All required dependencies check pass! "
}
function
test_self(){
# How to use this function:
# First execute "$0 test_self", then execute "$0 update"
echo_b
"Test purpose begin. "
# clean old test example
echo_b
"Clean old test example. "
[ -d $WORKDIR
/example_projects
] &&
rm
-rf $WORKDIR
/example_projects
[ -d $WORKDIR
/example_resources
] &&
rm
-rf $WORKDIR
/example_resources
[ -d $WORKDIR
/example_backup_dir
] &&
rm
-rf $WORKDIR
/example_backup_dir
# make an example project directory
if
[ -z $config_project_dir -o ! -d $config_project_dir ];
then
echo_b
"Making an example project directory. "
mkdir
$WORKDIR
/example_projects
config_project_dir=example_projects
# Padding example_projects directory
touch
$config_project_dir
/example_filename
mkdir
$config_project_dir
/example_directory
fi
# make an example resources directory
if
[ -z $config_resources_dir -o ! -d $config_resources_dir ];
then
echo_b
"Making an example resources directory. "
mkdir
$WORKDIR
/example_resources
config_resources_dir=$WORKDIR
/example_resources
fi
# make an example config_update.conf
if
[ -z $config_config_file -o ! -f $config_config_file ];
then
echo_b
"Making an example config_update.conf file. "
touch
$config_resources_dir
/config_update
.conf
config_config_file=$config_resources_dir
/config_update
.conf
# Padding config_update.conf file
cat
>$config_config_file <<eof
file
filename1 add
file
filename2 remove
file
filename3 update
file
filename4 add
config cleancachea
enable
config cleancacheb disable
config restartservicea
enable
config restartserviceb disable
target 192.168.1.241
ssh
target 192.168.1.242
ssh
eof
files=`
awk
-F
'[ ]+'
'/^file/ { print $2 }'
$config_config_file`
echo_b
"Making an example files(patches) refer to $config_config_file. "
for
names
in
$files;
do
[ ! -f $config_resources_dir/$names ] &&
touch
$config_resources_dir/$names
done
fi
# TODO
# test network and ssh for remote call
# make an example backup directory
if
[ -z $config_backup_dir -o ! -d $config_backup_dir ];
then
echo_b
"Making an example backup directory"
mkdir
$WORKDIR
/example_backup_dir
config_backup_dir=$WORKDIR
/example_backup_dir
fi
echo_g
"Test purpose is finished and successfully! "
}
#function parse_config_file(){
# # unbanned action
# files=`awk -F '[ ]+' '/^file/ { print $2 }' $config_config_file`
# configs=`awk -F '[ ]+' '/^config/ { print $2 }' $config_config_file`
#}
function
do_cp(){
SOURCE=$1
# echo "var: $SOURCE"
# echo "result: $(dirname $SOURCE | grep ^\/ | awk '{print substr($1,1,1)}' )"
# exit 0
if
test
"$(dirname $SOURCE | grep ^\/ | awk '{print substr($1,1,1)}')"
==
""
;
then
echo_b
"Execute copy action. "
DEST=$config_project_dir/$SOURCE
\
cp
$SOURCE $DEST
else
echo_y
"Self test purpose found! But we can do this action! "
[ ! -d $config_project_dir/$(
dirname
$SOURCE) ] &&
mkdir
-p $config_project_dir/$(
dirname
$SOURCE)
\
cp
$SOURCE $config_project_dir/$(
dirname
$SOURCE)
fi
}
function
do_remove(){
FILE=$1
if
test
"$(dirname $SOURCE | awk -F '/' '{print $1}')"
==
""
;
then
rm
-rf $config_project_dir/$FILE
else
echo_y
"Self test purpose found! This can NOT do remove action on self test purpose, skipping..."
return
fi
}
# TODO
# for remote call
#function do_remote_cp(){}
#function fo_remote_remove(){}
function
file_operation(){
echo_b
"Begin files operations"
files=`
awk
-F
'[ ]+'
'/^file/ { print $2 }'
$config_config_file`
for
names
in
$files;
do
if
grep
$names $config_config_file |
grep
add >
/dev/null
2>&1 ;
then
# do_cp
do_cp $names
elif
grep
$names $config_config_file |
grep
update >
/dev/null
2>&1 ;
then
# do_cp
do_cp $names
elif
grep
$names $config_config_file |
grep
remove >
/dev/null
2>&1 ;
then
# do_remove
do_remove $names
else
exit
1
fi
done
echo_g
"Files operations finished successfully! "
}
# TODO
# no example here, please refer to your real production environment
#function do_clean_cache(){}
#function do_restart_service(){}
function
service_operation(){
echo_b
"Begin services operations"
configs=`
awk
-F
'[ ]+'
'/^config/ { print $2 }'
$config_config_file`
for
names
in
$configs;
do
if
grep
$names $config_config_file |
grep
cleancache |
grep
enable
>
/dev/null
2>&1 ;
then
# do_clean_cache
echo
do_clean_cache $names
elif
grep
$names $config_config_file |
grep
cleancache |
grep
disable >
/dev/null
2>&1 ;
then
# echo a warning
echo_y
"Warning: disable action is NOT recommended, $names skipped."
elif
grep
$names $config_config_file |
grep
restartservice |
grep
enable
>
/dev/null
2>&1 ;
then
# do_restart_service
echo
do_restart_service $names
elif
grep
$names $config_config_file |
grep
restartservice |
grep
disable >
/dev/null
2>&1 ;
then
# echo a warning
echo_y
"Warning: disable action is NOT recommended, $names skipped."
else
echo
$names
echo_r
"Error: Wrong config file $config_config_file, please check it. "
exit
1
fi
done
echo_g
"Services operations finished successfully! "
}
function
check_remote_server_status(){
# TODO
# for remote call
echo
}
function
backup(){
echo_b
"Backup files before update"
# backup_filename=backup_$(date +%F_%H_%M_%S).tgz
backup_filename=backup_$(
date
+%Y_%m_%d_%H_%M_%S).tgz
tar
--create --
gzip
--absolute-names --
file
=$config_backup_dir/$backup_filename $config_project_dir
if
[ $? -
eq
0 ];
then
echo_g
"Backup files before update finished and successfully! "
echo
"restore_least_file=$config_backup_dir/$backup_filename"
> $config_this_logfile
else
echo_r
"Error: Backup files before update failed! Please alter to administrator. "
exit
1
fi
}
function
restore(){
echo_b
"Restore files for rollback"
if
[ -f $config_this_logfile ];
then
. $config_this_logfile
fi
restore_least_file=${restore_least_file:-1}
if
[ -s $restore_least_file ];
then
tar
-C $config_project_dir/.. -zxf $restore_least_file
if
[ $? -
eq
0 ];
then
echo_g
"Restore files finished and successfully! "
else
echo_r
"Restore files failed! Please alter to administrator. "
exit
1
fi
else
echo_r
"Can NOT find backup files in $config_backup_dir, backup once indeed? "
exit
1
fi
}
# TODO
# for remote call
# function remote_backup(){}
# function remote_restore(){}
function
rollback(){
echo_b
"rollback after update failed"
$0 restore
echo_g
"rollback finished and successfully! "
}
function
update_status(){
# TODO
# no example here, please refer to your real production environment
# check if update success or failure
echo
update_status
# if failure, do rollback action
# service_operation
}
function
update(){
# TODO
# thinking carefully with all exit status, which is not good for automatic update
check_dependencies
backup
file_operation
service_operation
update_status
}
function
destroy() {
# echo a warning message
echo_y
"Warning: This action will destroy all this project, and this is unrecoverable! "
answer=
"n"
echo_y
"Do you want to destroy this project? "
read
-p
"(Default no,if you want please input: y ,if not please press the enter button):"
answer
case
"$answer"
in
y|Y|Yes|YES|
yes
|yES|yEs|YeS|yeS )
# delete all file expect for this script self
# find: warning: Unix filenames usually don't contain slashes (though pathnames do). That means that '-name `./deploy.sh'' will probably evaluate to false all the time on this system. You might find the '-wholename' test more useful, or perhaps '-samefile'. Alternatively, if you are using GNU grep, you could use 'find ... -print0 | grep -FzZ `./deploy.sh''.
# echo $WORKDIR/
#find -L $WORKDIR -type f ! -name "$(basename $0)" -exec ls --color=auto -al {} \;
# find -L . -type f ! -name "deploy.sh" -exec ls --color=auto -al {} \;
# find -L . -type d -exec ls --color=auto -al {} \;
# find -L ./ -maxdepth 1 ! -name "deploy.sh" ! -wholename "./"
# ls | grep -v "fielname" |xargs rm -rf
find
-L $WORKDIR -maxdepth 1 ! -name
"$(basename $0)"
! -wholename
"$WORKDIR"
-
exec
rm
-rf {} \;
if
[ $? -
eq
0 ];
then
echo_g
"Destory this project successfully! Now will exit with status 0. "
exit
0
else
echo_r
"Error: something go wrong! Please check or alter to Admin user! "
exit
1
fi
;;
n|N|No|NO|no|nO)
echo_g
"destroy action is cancel"
exit
0
;;
*)
echo_r
"Are you kidding me? You are a bad kid! "
exit
1
;;
esac
}
case
$1
in
update)
update
;;
backup)
backup
;;
restore)
restore
;;
rollback)
rollback
;;
destroy)
destroy
;;
help|*)
echo
"Usage: $0 {update|backup|restore|rollback|destroy} with $0 itself"
exit
1
;;
esac
# This is not essential with 'case .. esac' handled no args excutions
# replace "exit 0" with ":"
#exit 0
:
|
tag: 自动更新shell脚本,自动化部署脚本,Shell部署脚本,脚本实现自动更新和回滚,自动化部署shell脚本实例
--end--
本文转自 urey_pp 51CTO博客，原文链接：http://blog.51cto.com/dgd2010/1737010，如需转载请自行联系原作者
