脚本功能：
检查运行环境（包括运行权限、网络、DNS解析等），自动从git上获取java maven项目工程源码，在机器A上build，build完成后，备份机器B上原有的配置文件（如果存在），将Class、Lib文件和备份的配置文件等上传到机器B，重新启动机器B上的服务以便变更生效。
脚本特点：
1.（与之前的自动部署脚本相比）全新优化了脚本代码，更friendly，结构更紧凑、逻辑更加严谨
2.Public header删除了无用或者不好用的有色彩显示函数，并修正了WORKDIR不是绝对路径可能导致的bug
3.修正了域名解析判断是否正常的一个bug，该bug可能导致遇到无法解析后不断尝试解析
4.全新的通用main函数，自带文件锁和自动接受处理INT、TERM、EXIT进程信号，整个脚本更加的模块化和标准化
5.针对项目方面，增加了对java项目配置文件的备份和还原功能，增加了对docker容器的支持
使用办法：
将脚本上传到Linux任意目录，至少修改三个变量（分别是项目源码的git地址、部署对象的IP、部署对象的目标目录）：
|
1
2
3
|
project_clone=
"ssh://git@xxx/xxx.git"
deploy_target_host_ip=
"xxx.xxx.xxx.xxx"
project_top_directory_to_target_host=
"/path/to/deploy/project"
|
如果此项目依赖于其他项目，则修改“project_clone_depends_1”变量，如果要想使部署后自动生效，则，可以将启动脚本放在项目git源码下的bin目录下，默认名称为“startup.sh”
如果此项目部署在目标主机的docker容器内，则修改“docker_container_name”变量，以便重启容器生效。
多个容器启动的依赖关系的处理已经在TODO计划中。
首次执行需要将配置文件准确的写入项目文件中，一次写入后期无须修改，如需修改，直接修改部署对象主机上的配置文件即可。
在任意位置使用下方命令运行即可，脚本一旦运行一次，自动添加可执行权限，无须手动添加。
|
1
|
bash
/path/to/this
.sh
|
可以从GitHub上获取最新脚本内容：https://github.com/DingGuodong/AutomaticDeployJavaMavenProject
脚本内容：
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|
#!/bin/bash
# Name: doDeploy.sh
#Execute this shell script to deploy Java projects built by Maven automatically on remote hosts.
# debug option
#_XTRACE_FUNCTIONS=$(set +o | grep xtrace)
#set -o xtrace
# define user friendly messages
header="
Function: Execute this shell script to deploy Java projects built by Maven automatically on remote hosts.
License: Open
source
software
"
# define variables
# Where to get source code
project_clone_depends_1=
""
project_clone=
"ssh://git@xxx/xxx.git"
deploy_target_host_ip=
"xxx.xxx.xxx.xxx"
project_top_directory_to_target_host=
"/path/to/deploy/project"
docker_container_name=
""
# Setting how many days do you want save old releases, default is 10 days
save_old_releases_for_days=10
# end define variables
# pretreatment
test
-z ${project_clone_depends_1} || project_clone_target_depends_1=
"`echo ${project_clone_depends_1} | awk -F '[/.]+' '{ print $(NF-1)}'`"
project_clone_target=
"`echo ${project_clone} | awk -F '[/.]+' '{ print $(NF-1)}'`"
project_clone_repository_name=${project_clone_target}
# end pretreatment
# Public header
# =============================================================================================================================
# resolve links - $0 may be a symbolic link
# learn from apache-tomcat-6.x.xx/bin/catalina.sh
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, smarter, learn from lnmp.org lnmp install.sh
function
echo_r (){
# Color red: Error, Failed
[ $
# -ne 1 ] && return 1
echo
-e
"\033[31m$1\033[0m"
}
function
echo_g (){
# Color green: Success
[ $
# -ne 1 ] && return 1
echo
-e
"\033[32m$1\033[0m"
}
function
echo_y (){
# Color yellow: Warning
[ $
# -ne 1 ] && return 1
echo
-e
"\033[33m$1\033[0m"
}
function
echo_b (){
# Color blue: Debug, friendly prompt
[ $
# -ne 1 ] && return 1
echo
-e
"\033[34m$1\033[0m"
}
# end echo color function, smarter
#WORKDIR="`realpath ${WORKDIR}`"
WORKDIR=
"`readlink -f ${PRGDIR}`"
# end public header
# =============================================================================================================================
USER=
"`id -un`"
LOGNAME=
"$USER"
if
[ $UID -
ne
0 ];
then
echo
"WARNING: Running as a non-root user, \"$LOGNAME\". Functionality may be unavailable. Only root can use some commands or options"
fi
command_exists() {
# which "$@" >/dev/null 2>&1
command
-
v
"$@"
>
/dev/null
2>&1
}
check_command_can_be_execute(){
[ $
# -ne 1 ] && return 1
command_exists $1
}
check_network_connectivity(){
echo_b
"checking network connectivity ... "
network_address_to_check=8.8.4.4
stable_network_address_to_check=114.114.114.114
ping_count=2
ping
-c ${ping_count} ${network_address_to_check} >
/dev/null
retval=$?
if
[ ${retval} -
ne
0 ] ;
then
if
ping
-c ${ping_count} ${stable_network_address_to_check} >
/dev/null
;
then
echo_g
"Network to $stable_network_address_to_check succeed! "
echo_y
"Note: network to $network_address_to_check failed once! maybe just some packages loss."
elif
! ip route |
grep
default >
/dev/null
;
then
echo_r
"Network is unreachable, gateway is not set."
exit
1
elif
!
ping
-c2 $(ip route |
awk
'/default/ {print $3}'
) >
/dev/null
;
then
echo_r
"Network is unreachable, gateway is unreachable."
exit
1
else
echo_r
"Network is blocked! "
exit
1
fi
elif
[ ${retval} -
eq
0 ];
then
echo_g
"Check network connectivity passed! "
fi
}
check_name_resolve(){
echo_b
"checking DNS name resolve ... "
target_name_to_resolve=
"github.com"
stable_target_name_to_resolve=
"www.aliyun.com"
ping_count=1
if
!
ping
-c${ping_count} ${target_name_to_resolve} >
/dev/null
;
then
echo_y
"Name lookup failed for $target_name_to_resolve with $ping_count times "
if
ping
-c${ping_count} ${stable_target_name_to_resolve} >
/dev/null
;
then
echo_g
"Name lookup success for $stable_target_name_to_resolve with $ping_count times "
fi
eval_md5sum_of_nameserver_config=
"`md5sum /etc/resolv.conf | awk '{ print $1 }'`"
if
test
${eval_md5sum_of_nameserver_config} =
"674ea91675cdfac353bffbf49dc593c3"
;
then
echo_y
"Nameserver config file is validated, but name lookup failed for $target_name_to_resolve with $ping_count times"
return
0
fi
[ -f
/etc/resolv
.conf ] &&
cp
/etc/resolv
.conf
/etc/resolv
.conf_$(
date
+%Y%m%d%H%M%S)~
cat
>
/etc/resolv
.conf<<eof
nameserver 114.114.114.114
nameserver 8.8.4.4
eof
check_name_resolve
else
echo_g
"Check DNS name resolve passed! "
return
0
fi
}
function
checkOtherDependencies() {
echo_b
"Checking other dependencies for deploy procedure... "
echo_b
"\tChecking user customized variables..."
# Refer:
# if [ -z ${var+x} ]; then
# echo "var is unset"; else echo "var is set to '$var'"
# fi
# if [ "$var x" = " x" ]; then
# echo "var is empty"; else echo "var is set to '$var'"
# fi
# if [ -z $var ]; then
# echo "var is empty"; else echo "var is set to '$var'"
# fi
if
[[ -z ${project_clone} ]];
then
echo_r
"Error: project_clone is undefined! "
exit
1
elif
[[ -z ${deploy_target_host_ip} ]];
then
echo_r
"Error: deploy_target_host_ip is undefined! "
exit
1
elif
[[ -z ${project_top_directory_to_target_host} ]];
then
echo_r
"Error: project_top_directory_to_target_host is undefined! "
exit
1
fi
echo_g
"\tChecking user customized variables passed! "
echo_b
"\tChecking disk space available..."
disk_space_available=`
df
${WORKDIR} |
tail
-n1 |
awk
'{print $(NF-2)}'
`
if
[[ ${disk_space_available} -lt 2097152 ]];
then
echo_y
"Warning: Disk space of $WORKDIR is smaller than 2GB"
#exit 1
else
echo_g
"\tChecking disk space available passed! "
fi
echo_g
"All required dependencies check passed! "
}
function
setDirectoryStructureOnLocalHost() {
if
[ -f ${WORKDIR}/.capistrano_ds_lock ];
then
echo_g
"Set directory structure has been done, skipping. "
return
fi
echo_b
"Setting directory structure... "
# learn from capistrano
# Refer: http://capistranorb.com/documentation/getting-started/structure/
# Refer: http://capistranorb.com/documentation/getting-started/structure/#
# ├── current -> /var/www/my_app_name/releases/20150120114500/
# ├── releases
# │ ├── 20150080072500
# │ ├── 20150090083000
# │ ├── 20150100093500
# │ ├── 20150110104000
# │ └── 20150120114500
# ├── repo
# │ └── <VCS related data>
# ├── revisions.log
# └── shared
# └── <linked_files and linked_dirs>
# current is a symlink pointing to the latest release. This symlink is updated at the end of a successful deployment. If the deployment fails in any step the current symlink still points to the old release.
# releases holds all deployments in a timestamped folder. These folders are the target of the current symlink.
# repo holds the version control system configured. In case of a git repository the content will be a raw git repository (e.g. objects, refs, etc.).
# revisions.log is used to log every deploy or rollback. Each entry is timestamped and the executing user (username from local machine) is listed. Depending on your VCS data like branch names or revision numbers are listed as well.
# shared contains the linked_files and linked_dirs which are symlinked into each release. This data persists across deployments and releases. It should be used for things like database configuration files and static and persistent user storage handed over from one release to the next.
# The application is completely contained within the path of :deploy_to. If you plan on deploying multiple applications to the same server, simply choose a different :deploy_to path.
# Check directories for deploy
[ ! -d ${WORKDIR}
/release
] &&
mkdir
${WORKDIR}
/release
[ ! -d ${WORKDIR}
/repository
] &&
mkdir
${WORKDIR}
/repository
[ ! -d ${WORKDIR}
/share
] &&
mkdir
${WORKDIR}
/share
# end directories structure
# Additional directories structure for full deploy operation
# for backup remote host config file
[ ! -d ${WORKDIR}
/backup
] &&
mkdir
${WORKDIR}
/backup
# set a directories structure lock
touch
${WORKDIR}/.capistrano_ds_lock
echo_g
"Set directory structure successfully! "
}
function
cleanOldReleases(){
save_days=${save_old_releases_for_days:-10}
if
[ ! -d ${WORKDIR}
/release
];
then
echo_b
"Can NOT find release directory, skipping . "
return
fi
need_clean=$(
find
${WORKDIR}
/release
-mtime +${save_days} -
exec
ls
'{}'
\;)
if
[ ! -z ${need_clean} ];
then
echo_g
"Expired releases found and will be removed from project! "
find
${WORKDIR}
/release
-mtime +${save_days} -
exec
rm
-rf
'{}'
\;
if
[ $? -
eq
0 ];
then
echo_g
"Expired releases have removed from project! "
else
echo_r
"Can NOT remove expired releases, please alter to Admin users. "
fi
else
echo_g
"All releases are not expired, skipping. "
fi
}
# git_project_clone repository branch
function
git_project_clone(){
set
-o errexit
[ $
# -ge 1 ] && project_clone_repository="$1"
project_clone_repository_name=
"`echo ${project_clone_repository} | awk -F '[/.]+' '{ print $(NF-1)}'`"
project_clone_directory=${WORKDIR}
/repository/
${project_clone_repository_name}
if
test
-n $2;
then
branch=
"$2"
else
branch=
"develop"
fi
if
test
! -d ${project_clone_directory};
then
echo_b
"git clone from $project_clone_repository"
git clone ${project_clone_repository} ${project_clone_directory} >>${WORKDIR}
/git_
$(
date
+%Y%m%d)_$$.log 2>&1
# TODO(Guodong Ding) get branch names or revision numbers from VCS data
cd
${project_clone_directory}
git checkout ${branch} >>${WORKDIR}
/git_
$(
date
+%Y%m%d)_$$.log 2>&1
cd
..
echo_g
"git clone from $project_clone_repository successfully! "
else
echo_b
"git pull from $project_clone_repository"
cd
${project_clone_directory}
git pull >>${WORKDIR}
/git_
$(
date
+%Y%m%d)_$$.log 2>&1
git checkout ${branch} >>${WORKDIR}
/git_
$(
date
+%Y%m%d)_$$.log 2>&1
# TODO(Guodong Ding) get branch names or revision numbers from VCS data
cd
..
echo_g
"git pull from $project_clone_repository successfully! "
fi
set
+o errexit
}
function
maven_build_project_deprecated(){
set
-o errexit
echo_b
"Do mvn build java project... "
check_command_can_be_execute mvn
[ $
# -ge 1 ] && project_clone_repository="$1"
project_clone_repository_name=
"`echo ${project_clone_repository} | awk -F '[/.]+' '{ print $(NF-1)}'`"
project_clone_directory=${WORKDIR}
/repository/
${project_clone_repository_name}
cd
${project_clone_directory}
mvn
install
>>${WORKDIR}
/mvn_build_
$(
date
+%Y%m%d)_$$.log 2>&1
mvn clean package >>${WORKDIR}
/mvn_build_
$(
date
+%Y%m%d)_$$.log 2>&1
cd
..
echo_g
"Do mvn build java project finished with exit code 0! "
set
+o errexit
}
function
maven_build_project(){
echo_b
"Do mvn build java project for `echo $1 | awk -F '[/.]+' '{ print $(NF-1)}'`... "
check_command_can_be_execute mvn
[ $
# -ge 1 ] && project_clone_repository="$1"
project_clone_repository_name=
"`echo ${project_clone_repository} | awk -F '[/.]+' '{ print $(NF-1)}'`"
project_clone_directory=${WORKDIR}
/repository/
${project_clone_repository_name}
cd
${project_clone_directory}
mvn
install
>>${WORKDIR}
/mvn_build_
$(
date
+%Y%m%d)_$$.log 2>&1
retval=$?
if
[ ${retval} -
ne
0 ] ;
then
echo_r
"mvn install failed! More details refer to ${WORKDIR}/mvn_build_$(date +%Y%m%d)_$$.log"
exit
1
else
echo_g
"mvn install for ${project_clone_repository_name} successfully! "
fi
mvn clean package >>${WORKDIR}
/mvn_build_
$(
date
+%Y%m%d)_$$.log 2>&1
retval=$?
if
[ ${retval} -
ne
0 ] ;
then
echo_r
"mvn clean package for ${project_clone_repository_name} failed! More details refer to ${WORKDIR}/mvn_build_$(date +%Y%m%d)_$$.log"
exit
1
else
echo_g
"mvn clean package for ${project_clone_repository_name} successfully! "
fi
cd
..
echo_g
"Do mvn build java project finished for ${project_clone_repository_name} with exit code 0! "
}
function
check_ssh_can_be_connect(){
[ $
# -ne 1 ] && return 1
echo_b
"Check if can ssh to remote host $1 ... "
check_command_can_be_execute
ssh
||
return
1
ssh
-i
/etc/ssh/ssh_host_rsa_key
-p 22 -oStrictHostKeyChecking=no root@$1
"uname -a >/dev/null 2>&1"
retval=$?
if
[ ${retval} -
ne
0 ] ;
then
echo_r
"Check ssh to remote host $1 failed! "
exit
1
else
echo_g
"Check ssh to remote host $1 successfully! "
fi
}
# ssh_execute_command_on_remote_host hostname command
function
ssh_execute_command_on_remote_host(){
[ $
# -ne 2 ] && return 1
ssh
-i
/etc/ssh/ssh_host_rsa_key
-p 22 -oStrictHostKeyChecking=no root@$1
"$2"
>>${WORKDIR}
/ssh_command_
$(
date
+%Y%m%d)_$$.log
retval=$?
if
[ ${retval} -
ne
0 ] ;
then
echo_r
"ssh execute command on remote host $2 failed! More details refer to ${WORKDIR}/ssh_command_$(date +%Y%m%d)_$$.log"
return
1
else
echo_g
"ssh execute command on remote host $2 successfully! "
return
0
fi
}
function
restart_docker_container(){
echo_b
"Restarting docker container..."
[ $
# -ne 1 ] && return 1
# TODO(Guodong Ding) if we need restart more related docker container
local
docker_container_name=
""
test
-n $1 && docker_container_name=
"$1"
ssh_execute_command_on_remote_host
"docker restart $docker_container_name"
retval=$?
if
[ ${retval} -
ne
0 ] ;
then
echo_r
"restart docker container for $docker_container_name failed! "
exit
1
else
echo_g
"restart docker container for $docker_container_name successfully! "
return
0
fi
}
# scp_local_files_to_remote_host local_path remote_hostname remote_path
function
scp_local_files_to_remote_host(){
[ $
# -ne 3 ] && return 1
[ ! -d $1 -a ! -f $1 ] &&
return
1
check_ssh_can_be_connect $2
scp
-i
/etc/ssh/ssh_host_rsa_key
-P 22 -oStrictHostKeyChecking=no -rp $1 root@$2:$3 >
/dev/null
2>&1
retval=$?
if
[ ${retval} -
ne
0 ] ;
then
echo_r
"scp local files to remote host failed! "
exit
1
else
echo_g
"scp local files to remote host successfully! "
fi
}
# scp_remote_files_to_local_host remote_hostname remote_path local_path
function
scp_remote_files_to_local_host(){
[ $
# -ne 3 ] && return 1
check_ssh_can_be_connect $1
scp
-i
/etc/ssh/ssh_host_rsa_key
-P 22 -oStrictHostKeyChecking=no -rp root@$1:$2 $3 >
/dev/null
2>&1
retval=$?
if
[ ${retval} -
ne
0 ] ;
then
echo_r
"scp remote files to local host failed! "
exit
1
else
echo_g
"scp remote files to local host successfully! "
fi
}
function
backup_remote_host_config_files(){
echo_b
"backup remote host config files..."
scp_remote_files_to_local_host ${deploy_target_host_ip} ${project_top_directory_to_target_host}/* ${WORKDIR}
/backup
# get config files
[
"$(ls -A ${WORKDIR}/backup)"
] &&
find
${WORKDIR}
/backup/
. -
type
f ! -name . -a ! -name
'*.xml*'
-a ! -name
'*.properties*'
-
exec
rm
-f --
'{}'
\;
# remove empty directory
find
${WORKDIR}
/backup/
. -empty -
type
d -delete
# TODO(Guodong Ding) improvements here
echo_g
"backup remote host config files finished."
}
function
rollback_remote_host_config_files(){
echo_b
"rollback remote host config files..."
#scp_local_files_to_remote_host ${WORKDIR}/backup ${deploy_target_host_ip} ${project_top_directory_to_target_host}
saved_IFS=$IFS
IFS=
' '
cd
${WORKDIR}
/current
for
file
in
${WORKDIR}
/backup/
*;
do
scp_local_files_to_remote_host ${
file
} ${deploy_target_host_ip} ${project_top_directory_to_target_host}
done
cd
${WORKDIR}
IFS=${saved_IFS}
# TODO(Guodong Ding) if save remote host config files
# some ops
# TODO(Guodong Ding) improvements here
echo_g
"rollback remote host config files finished."
}
function
deploy() {
[ -n
"$header"
] &&
echo
"$header"
# check a directories lock, Note: this is redundant
if
[[ ! -f ${WORKDIR}/.lock ]];
then
setDirectoryStructureOnLocalHost
fi
cleanOldReleases
# do dependencies checking
check_network_connectivity
check_name_resolve
checkOtherDependencies
check_ssh_can_be_connect ${deploy_target_host_ip}
# do core job
# TODO(Guodong Ding) if we need a git_project_clone "$project_clone_depends_1" here using auto judgment statement
test
-z ${project_clone_depends_1} || git_project_clone
"$project_clone_depends_1"
git_project_clone
"$project_clone"
test
-z ${project_clone_depends_1} || maven_build_project
"$project_clone_depends_1"
maven_build_project
"$project_clone"
cd
${WORKDIR}
# links_target_directory_to_current
# Make directory to release directory
if
test
! -d ${WORKDIR}
/release
-o ! -d ${WORKDIR}
/share
;
then
echo_r
"capistrano directory structure is broken, make sure the file .capistrano_ds_lock is deleted before a new deploy! "
exit
1
# test -f ${WORKDIR}/.capistrano_ds_lock && \rm -rf ${WORKDIR}/.capistrano_ds_lock
fi
new_release_just_created=
"$WORKDIR/release/$(date +%Y%m%d%H%M%S)"
[ ! -d ${new_release_just_created} ] &&
mkdir
${new_release_just_created}
[ -d ${WORKDIR}
/repository/
${project_clone_repository_name}
/target/
${project_clone_repository_name}/ ] && \
\
cp
-rf ${WORKDIR}
/repository/
${project_clone_repository_name}
/target/
${project_clone_repository_name}/* ${new_release_just_created}
# Make source code symbolic link to current
( [ -f ${WORKDIR}
/current
] || [ -d ${WORKDIR}
/current
] ) &&
rm
-rf ${WORKDIR}
/current
ln
-s ${new_release_just_created} ${WORKDIR}
/current
# backup remote host config files
backup_remote_host_config_files
# scp_local_files_to_remote_host ${WORKDIR}/current/ ${deploy_target_host_ip} ${project_top_directory_to_target_host}
saved_IFS=$IFS
IFS=
' '
cd
${WORKDIR}
/current
for
file
in
${WORKDIR}
/current/
*;
do
scp_local_files_to_remote_host ${
file
} ${deploy_target_host_ip} ${project_top_directory_to_target_host}
done
cd
${WORKDIR}
IFS=${saved_IFS}
# rollback remote host config files
rollback_remote_host_config_files
# Move conf and logs directives from release to share
[ -d ${WORKDIR}
/release/conf
] &&
mv
${WORKDIR}
/release/conf
${WORKDIR}
/share/conf
[ -d ${WORKDIR}
/release/logs
] &&
mv
${WORKDIR}
/release/logs
${WORKDIR}
/share/logs
# Make conf and logs symbolic link to current
[ -d ${WORKDIR}
/share/conf
] &&
ln
-s ${WORKDIR}
/share/conf
${WORKDIR}
/current/conf
[ -d ${WORKDIR}
/share/logs
] &&
ln
-s ${WORKDIR}
/share/logs
${WORKDIR}
/current/logs
# Start service or validate status
if
[[ -e ${WORKDIR}
/current/bin/startup
.sh ]];
then
${WORKDIR}
/current/bin/startup
.sh start
RETVAL=$?
else
# TODO(Guodong Ding) external health check
test
-z ${docker_container_name} || restart_docker_container ${docker_container_name}
RETVAL=$?
fi
# if started ok, then create a workable program to a file
if
[[ ${RETVAL} -
eq
0 ]];
then
# Note cat with eof must start at row 0, and with eof end only, such as no blank spaces, etc
cat
>${WORKDIR}
/share/workable_program
.log <<eof
${new_release_just_created}
eof
echo_g
"Deploy successfully! "
echo_g
"current workable version is $(cat ${WORKDIR}/share/workable_program.log)"
# ls --color=auto -l ${WORKDIR}/current
# ls --color=auto -l ${WORKDIR}/current/
else
echo_r
"Error: Deploy failed! "
${WORKDIR}/`
basename
$0` rollback
fi
}
# Rollback to last right configuration
function
rollback() {
[ -n
"$header"
] &&
echo
"$header"
echo_b
"Rollback to last right configuration... "
# The key is find last files which can work
WORKABLE_PROGRAM=`
cat
${WORKDIR}
/share/workable_program
.log`
if
[[ -z ${WORKABLE_PROGRAM} ]];
then
echo_r
"Error: Can NOT find workable release version! Please check if it is first deployment! "
exit
1
fi
# Stop service if we have
if
[[ -e ${WORKDIR}
/current/bin/startup
.sh ]];
then
${WORKDIR}
/current/bin/startup
.sh stop
fi
# Remove failed deploy
rm
-rf ${WORKDIR}
/current
# Remake source code symbolic link to current
ln
-s ${WORKABLE_PROGRAM} ${WORKDIR}
/current
# Remake conf and logs symbolic link to current
[ -d ${WORKDIR}
/share/conf
] &&
ln
-s ${WORKDIR}
/share/conf
${WORKDIR}
/current
[ -d ${WORKDIR}
/share/logs
] &&
ln
-s ${WORKDIR}
/share/logs
${WORKDIR}
/current
# Start service or validate status
if
[[ -e ${WORKDIR}
/current/bin/startup
.sh ]];
then
${WORKDIR}
/current/bin/startup
.sh start
RETVAL=$?
else
# TODO(Guodong Ding) external health check
test
-z ${docker_container_name} || restart_docker_container ${docker_container_name}
RETVAL=$?
fi
# if started ok, then create a workable program to a file
if
[[ ${RETVAL} -
eq
0 ]];
then
echo_g
"Rollback successfully! "
echo_g
"current workable version is $WORKABLE_PROGRAM"
# ls --color=auto -l ${WORKDIR}/current
fi
}
function
destroy() {
[ -n
"$header"
] &&
echo
"$header"
# echo a Warning message
echo_y
"Warning: This action will destroy all this project, and this is unrecoverable! "
answer=
"n"
echo_y
"Do you want to destroy this project? "
read
-p
"(Default no,if you want please input: y ,if not please press the enter button):"
answer
case
"$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 "filename" | xargs rm -rf
find
-L ${WORKDIR} -maxdepth 1 ! -name
"$(basename $0)"
! -wholename
"$WORKDIR"
-
exec
rm
-rf
'{}'
\;
if
[ $? -
eq
0 ];
then
test
-f ${WORKDIR}/.capistrano_ds_lock && \
rm
-rf ${WORKDIR}/.capistrano_ds_lock
echo_g
"Destroy 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
}
function
main(){
lock_filename=
"lock_$$_$RANDOM"
# lock_filename_full_path="/var/lock/subsys/$lock_filename"
lock_filename_full_path=
"/var/lock/$lock_filename"
if
(
set
-o noclobber;
echo
"$$"
>
"$lock_filename_full_path"
) 2>
/dev/null
;
then
trap
'rm -f "$lock_filename_full_path"; exit $?'
INT TERM EXIT
# Just a test for call itself, comment it
if
[[ $
# -ne 1 ]]; then
# $0 deploy
[ ! -x ${WORKDIR}/`
basename
$0` ] &&
chmod
+x ${WORKDIR}/`
basename
$0`
${WORKDIR}/`
basename
$0` deploy
exit
0
fi
case
$1
in
deploy)
deploy
;;
rollback)
rollback
;;
destroy)
destroy
;;
help|*)
echo
"Usage: $0 {deploy|rollback|destroy} with $0 itself"
exit
1
;;
esac
rm
-f
"$lock_filename_full_path"
trap
- INT TERM EXIT
else
echo
"Failed to acquire lock: $lock_filename_full_path"
echo
"held by $(cat ${lock_filename_full_path})"
fi
}
main $@
# debug option
#${_XTRACE_FUNCTIONS}
|
运行效果：
可以尝试使用Chrome浏览器打开该页面，右键单击，选择“在新标签页中打开图片”查看清晰大图。
推荐Windows用户使用PyCharm（5.0.x）结合Bash Support插件编辑bash shell script文件。
注：由于该脚本的大幅度更新，因此最新的运行效果图可以自行运行观察。
--end--
本文转自 urey_pp 51CTO博客，原文链接：http://blog.51cto.com/dgd2010/1771555，如需转载请自行联系原作者
