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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="ssh://git@xxx/xxx1.git"
project_clone="ssh://git@xxx/xxx.git"
deploy_target_host_ip="xxx.xxx.xxx.xxx"
project_top_directory_to_target_host="/path/to/deploy"
# Setting how many days do you want save old releases, default is 10 days
save_old_releases_for_days=10
# end define variables
# pretreatment
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
function echo_r (){
#Error, Failed
[ $# -ne 1 ] && return 1
echo -e "\033[31m$1\033[0m"
}
function echo_g (){
# Success
[ $# -ne 1 ] && return 1
echo -e "\033[32m$1\033[0m"
}
function echo_y (){
# Warning
[ $# -ne 1 ] && return 1
echo -e "\033[33m$1\033[0m"
}
function echo_b (){
# Debug
[ $# -ne 1 ] && return 1
echo -e "\033[34m$1\033[0m"
}
# end echo color function, smarter
#WORKDIR="$PRGDIR"
#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 branchnames 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
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... "
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 successfully! "
fi
mvn clean package >>${WORKDIR}/mvn_build_$(date +%Y%m%d)_$$.log 2>&1
retval=$?
if [ ${retval} -ne 0 ] ; then
echo_r "mvn clean package failed! More details refer to ${WORKDIR}/mvn_build_$(date +%Y%m%d)_$$.log"
exit 1
else
echo_g "mvn clean package successfully! "
fi
cd ..
echo_g "Do mvn build java project finished 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"
}
# scp_local_files_to_remote_host local_path 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 [ ${retval} -ne 0 ] ; then
echo_r "scp_local_files_to_remote_host failed! "
exit 1
else
echo_g "scp_local_files_to_remote_host successfully! "
fi
}
function deploy() {
[ -n "$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
git_project_clone "$project_clone_depends_1"
git_project_clone "$project_clone"
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
# 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}
# 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
RETVAL=0
fi
RETVAL=$?
# 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! "
$0 rollback
fi
}
# Rollback to last right configuration
function rollback() {
[ -n "$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
RETVAL=0
fi
RETVAL=$?
# 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}
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