自动安装MongoDBMaster,Slave,Arbiter脚本
发现有人抄袭我的文章，竟然不写出处，想想也挺开心的，还会被抄袭，以前上初中的时候都是抄袭别人的作业。这篇文章我都改动过好多次了，那哥们抄袭的还是之前有点bug的代码。望他看到后，重新抄一遍，免得误人子弟了。
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最近有一个新项目需要用到MongoDB的Master，Slave，Arbiter的架构，去官网翻了一下文档，写了一个简陋的脚本。脚本可以在我的github上找到https://github.com/sangrealest。
安装之前确保已经提前设置好DNS，或者hosts文件已经设置好。防火墙做好相应的规则，或者关闭防火墙。
首先生成mongodb的证书文件，然后copy到Master, Slave, Arbiter目录下，并添加到配置文件里面。
openss rand -base64 741 >/etc/mongodb.key chmod 600 /etc/mongodb.key
#!/bin/bash
#Author:Shanker
#set -x
#set -o nounset
source ./mongo_config
function createConfig(){
role=$1
mongoConfig="./mongod-$role"
if [ ! -f "$mongoConfig" ]
then
echo "dbpath=/var/lib/mongodb-$role" >>$mongoConfig
echo "logpath=/var/log/mongodb-$role/mongodb.log" >>$mongoConfig
echo "logappend=true" >>$mongoConfig
echo "keyFile=$MongoKeyFile" >>$mongoConfig
if [ "$role" == "master" ]
then
echo "port=$MasterMongoPort" >>$mongoConfig
elif [ "$role" == "slave" ]
then
echo "port=$SlaveMongoPort" >>$mongoConfig
elif [ "$role" == "arbiter" ]
then
echo "port=$ArbiterMongoPort" >>$mongoConfig
fi
echo "nohttpinterface=true" >>$mongoConfig
echo "nojournal=true" >>$mongoConfig
echo "replSet=rs0" >>$mongoConfig
cp $mongoConfig /etc/
chmod 644 /etc/$mongoConfig
fi
}
function installMongoService(){
echo "installing mongoserver"
if [ ! -f "/usr/bin/mongo" ]
then
tar zxvf ./mongodb-linux-x86_64-2.4.9.tgz
cd ./mongodb-linux-x86_64-2.4.9/bin/
cp * /usr/bin
cd ../..
else
echo "mongo server file already exist"
fi
cp mongod-$1.sh /etc/init.d/
chmod 755 /etc/init.d/mongod-$1.sh
/etc/init.d/mongod-$1.sh start
i=1
until ((i=="0"))
do
/bin/cat /var/log/mongodb-$1/mongodb.log | grep "waiting for connection"
i=$?
sleep 3
echo "waiting for mongodb ready"
done
echo "mongodb is ready"
sleep 4
}
function setupReplSet(){
echo "setup mongodb replicationset"
member="$SlaveName:$SlaveMongoPort"
echo "rs.initiate()" | /usr/bin/mongo $MasterName:$MasterMongoPort
sleep 3
echo "rs.add(\"$count\")" | /usr/bin/mongo $MasterName:$MasterMongoPort
sleep 3
echo "rs.addArb(\"$ArbiterName:$ArbiterMongoPort\")"|/usr/bin/mongo $MasterName:$MasterMongoPort
echo "rs.status()"|/usr/bin/mongo $MasterName:$MasterMongoPort
}
case $1 in
"master"|"Master")
createConfig "master"
installMongoService "master"
setupReplSet
;;
"slave"|"Slave")
createConfig "slave"
installMongoService "slave"
;;
"arbiter"|"Arbiter")
createConfig "arbiter"
installMongoService "arbiter"
;;
"uninstall"|"Uninstall")
echo "this will remove all mongo files!!!"
if [ -f "/usr/bin/pkill" ]
then
pkill -9 mongod
else
kill -9 `ps aux | grep mongo | grep -v grep | awk -F" " '{print $2}'`
fi
rm -rf /etc/mongo*
rm -rf /etc/init.d/mongo*
rm -rf /var/lib/mongo*
rm -rf /var/log/mongo*
rm -rf /usr/bin/mongo*
rm -rf /var/run/mongo*
;;
*)
echo "Please inpute $0 Master, slave or ARBITER"
exit 0
;;
esac$ cat mongo_config SlaveIP='10.128.129.45' SlaveName='Databse-Slave' SlaveMongoPort='27017' ArbiterIP='10.128.129.46' ArbiterName='Database-Arbiter' ArbiterMongoPort='27017' MasterIP='10.128.129.44' MasterName='Database-Master' MasterMongoPort='27017' #Mongos config MongosPort='27015' #Mongo COnfig Server Config MongoConfigIP='127.0.0.1' MongoConfigName='Database-Config' MongoConfigDBPath='/var/lib/mongodc' MongoConfiglogpath='/var/log/mongodc' MongoConfigPort='27014' MongoKeyFile='/etc/mongodb.key'
$ cat mongod-master.sh
#!/bin/bash
#source /etc/mongod-start.conf
DBLocation='/var/lib/mongodb-master/'
LogFolder='/var/log/mongodb-master/'
StartProcess='/usr/bin/mongod -f /etc/mongod-master'
PidFile='/var/lib/mongodb-master/mongod-master.lock'
uid=`id | cut -d\( -f1 | cut -d= -f2`
if [ ! -d "$DBLocation" ];then
mkdir $DBLocation
fi
if [ ! -d "$LogFolder" ];then
mkdir $LogFolder
fi
if [ ! -f "$PidFile" ];then
touch $PidFile
fi
PidFileNum=`/bin/cat $PidFile`
CurrentPid=`ps aux|grep "$StartProcess"|grep -v "grep"|awk -F" " '{print $2}'`
ProcessStart()
{
if [ "x$CurrentPid" != "x" ];then
echo "mongod process already runing!! PID is $CurrentPid. "
else
exec $StartProcess &
sleep 2
NewPidNum=`ps aux|grep "$StartProcess"|grep -v "grep"|awk -F" " '{print $2}'`
echo "mongod process is running, pid is $NewPidNum"
#PidFileNum=`/bin/cat $PidFile`
#
#if [ $NewPidNum != $PidFileNum ];then
# echo "Process is runing, but pid number is not match the pid file."
# echo "pid number is $NewPidNum"
#fi
fi
}
ProcessStop()
{
if [ "x$CurrentPid" == "x" ];then
echo "mongod process already Stop!! "
else
kill -15 $CurrentPid
sleep 3
NewPidNum=`ps aux|grep "\"$StartProcess\""|grep -v "grep"|awk -F" " '{print $2}'`
if [ "x$NewPidNum" == "x" ];then
echo "mongod process is stop."
else
kill -9 $NewPidNum
if [ "x$NewPidNum" != "x" ];then
echo "Can't kill mongod process, please call system administrator."
else
echo "mongod is stop."
fi
fi
fi
}
ProcessStatus()
{
if [ "x$CurrentPid" != "x" ];then
echo "mongod process is runing!! PID is $CurrentPid. "
else
echo "mongod not running."
fi
}
case "$1" in
start)
ProcessStart
;;
stop)
ProcessStop
;;
restart)
ProcessStop
CurrentPid=''
ProcessStart
;;
status)
ProcessStatus
;;
*)
echo $"Usage: mongod {start|stop|status|restart}"
RETVAL=2
;;
esac
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