用shell脚本实现，部署mysql主从架构。
思路是这样的：
1）master.sh脚本用来安装master的mysql
2）然后通过expect脚本+rsync工具把slave.sh脚本、/etc/my.cnf、 /etc/init.d/mysqld 还有mysqldump下来的all.sql，以及在master下载下来的mysql二进制安装包传到slave上
3）通过expect脚本来运行slave.sh的脚本来安装，并且配置好主从，期间，用slave.tmp来记录master机子的binlog的状态，以便于传到slave后用命令添加进去。
参考答案：
cp_slave.expect
#!/usr/bin/expect
set user [lindex $argv 0]
set host [lindex $argv 1]
set passwd [lindex $argv 2]
set file [lindex $argv 3]
spawn rsync -avzP $file $user@$host:/tmp
set timeout 600
expect {
“yes/no” { send “yes\r”}
“password:” { send “$passwd\r” }
}
expect eof
ins_rsync.expect
#!/usr/bin/expect
set user [lindex $argv 0]
set host [lindex $argv 1]
set passwd [lindex $argv 2]
spawn ssh $user@$host
expect {
“yes/no” { send “yes\r”;exp_continue}
“password:” { send “$passwd\r” }
}
expect “]*”
send “yum install -y rsync\rexit\r”
interact
slave.expect
#!/usr/bin/expect
set host [lindex $argv 0]
set passwd [lindex $argv 1]
set cm [lindex $argv 2]
spawn ssh root@$host
expect {
“yes/no” { send “yes\r”}
“password:” { send “$passwd\r” }
}
expect “]*”
send “$cm\rexit\r”
interact
slave.sh
#!/bin/bash
####this is for building slave script
##by lv.
####master ip address
mas_ip=192.168.47.24
###mysql password conf
my_passwd=hd8832508
####replication user and password
rp_user=hd
rp_passwd=hd8832508
###check ok
check(){
if [ $? != 0 ]
then
echo “error,please check log.”
exit 1
fi
}
##close seliux
sed -i ‘s/SELINUX=enforcing/SELINUX=disabled/’ /etc/selinux/config
selinux_s=`getenforce`
if [ $selinux_s == “Enforcing” -o $selinux_s == “enforcing” ]
then
setenforce 0
fi
##close iptables
iptables-save > /etc/sysconfig/iptables_`date +%s`
iptables -F
service iptables save
##install the mirror.aliyun.com
cd /etc/yum.repos.d/
if rpm -qa |grep epel-release >/dev/null
then
rpm -e epel-release
fi
if [ -f epel.repo ]
then
/bin/mv epel.repo epel.repo.bak
fi
yum install -y wget
if [ -f CentOS-Base.repo ]
then
/bin/mv CentOS-Base.repo CentOS-Base.repo.bak
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo
wget http://mirrors.aliyun.com/repo/epel-6.repo -O /etc/yum.repos.d/epel.repo
fi
yum clean all
yum makecache
#first to update datetime
[ `rpm -qa |grep ntpdate|wc -l` -eq 1 ] || yum install -y ntpdate
ntpdate 0.openwrt.pool.ntp.org 2>&1 >/dev/null;clock -w
###install lib software
syum(){
if ! rpm -qa|grep -q $1
then
yum install -y $1
check
else
echo “$1 is already installed”
fi
}
## install some packges for the first on setup.
for p in gcc perl perl-devel libaio libaio-devel pcre-devel zlib-devel cmake glibc pcre compat-libstdc++-33
do
syum $p
done
###check file is already in tmp
if [ ! -f /tmp/my.cnf ] && [ ! -f /tmp/mysqld ] && [ ! -f /tmp/mysql-* ] && [ ! -f /tmp/slave.tmp ]
then
echo “error,please try to sync again”
exit 1
fi
mysql=`ls /tmp |grep tar.gz`
version=`echo /tmp/$mysql|awk -F – ‘{print $2}’|cut -d. -f2`
######install mysql
cd /tmp
tar -zxf $mysql
mv `echo $mysql|sed ‘s/.tar.gz//g’` /usr/local/mysql
cd /usr/local/mysql
if ! grep “^mysql:” /etc/passwd
then
useradd -s /sbin/nologin -M mysql
check
fi
[ -d /data/mysql ] && /bin/mv /data/mysql /data/mysql_`date +%s`
mkdir -p /data/mysql
chown -R mysql:mysql /data/mysql
###initialize
case $version in
1)
/usr/local/mysql/scripts/mysql_install_db –user=mysql –datadir=/data/mysql
check
sed -i ‘/^server-id/’d /tmp/my.cnf
check
sed -i ‘/\[mysqld\]/a\server-id=2’ /tmp/my.cnf
check
;;
6)
/usr/local/mysql/scripts/mysql_install_db –user=mysql –datadir=/data/mysql
check
sed -i ‘/^server_id/’d /tmp/my.cnf
check
sed -i ‘/\[mysqld\]/a\server_id = 2’ /tmp/my.cnf
check
;;
7)
pswd5_7=`/usr/local/mysql/bin/mysqld –user=mysql –datadir=/data/mysql –initialize 2>&1 |sed -r -n ‘/localhost: /p’|sed ‘s/.* //g’`
/usr/local/mysql/bin/mysql_ssl_rsa_setup –datadir=/data/mysql
check
sed -i ‘/^server_id/’d /tmp/my.cnf
check
sed -i ‘/\[mysqld\]/a\server_id = 2’ /tmp/my.cnf
check
;;
esac
###cp conf file
/bin/cp -rf /tmp/my.cnf /etc/my.cnf
check
/bin/cp -rf /tmp/mysqld /etc/init.d/
check
chmod 755 /etc/init.d/mysqld
chkconfig –add mysqld
chkconfig mysqld on
service mysqld start
check
####change mysql password
if [ $version -eq 7 ]
then
/usr/local/mysql/bin/mysql -uroot -p$pswd5_7 –connect-expired-password -e “set password=password(‘$my_passwd’);”
check
else
/usr/local/mysql/bin/mysql -uroot -e “set password=password(‘$my_passwd’);”
check
fi
###input date
if [ -f /tmp/all.sql ]
then
/usr/local/mysql/bin/mysql -uroot -p$my_passwd < /tmp/all.sql
check
else
echo “date error.”
exit 1
fi
######binlog
slave_bin=`grep “mysql-bin” /tmp/slave.tmp`
slave_pos=`grep ‘^[0-9]’ /tmp/slave.tmp`
###stop slave
/usr/local/mysql/bin/mysql -uroot -p$my_passwd -e “stop slave;”
check
###configure slave
/usr/local/mysql/bin/mysql -uroot -p$my_passwd -e “change master to master_host=’$mas_ip’,master_port=3306,master_user=’$rp_user’,master_password=’$rp_passwd’,master_log_file=’$slave_bin’,master_log_pos=$slave_pos;”
check
###start slave
/usr/local/mysql/bin/mysql -uroot -p$my_passwd -e “start slave;”
check
###check repecation status
show=`/usr/local/mysql/bin/mysql -uroot -p$my_passwd -e “show slave status\G;”|grep ‘Slave_IO_Running:’`
slaveIO=`echo $show|awk -F’:’ ‘{print $2}’`
Slave_SQL=`echo $show|awk -F’:’ ‘{print $2}’`
if [ $slaveIO == Yes ] && [$Slave_SQL == Yes ]
then
echo “mysql repliation is start”
/bin/rm -rf /tmp/all.sql /tmp/$mysql /tmp/mysqld /tmp/my.cnf /tmp/slave.tmp
else
echo “error,please check the log.”
fi
master.sh
#!/bin/bash
#####this is building mysql replication###
##by lv.
ml=`pwd`
ar=`arch`
###mysql password conf
my_passwd=hd8832508
####replication user and password
rp_user=hd
rp_passwd=hd8832508
###slave conf
s_user=root
s_host=192.168.47.25
s_passwd=hd8832508
###check ok
check(){
if [ $? != 0 ]
then
echo “error,please check log.”
exit 1
fi
}
####check the file is exist
for wj in $ml/cp_slave.expect $ml/ins_rsync.expect $ml/slave.expect $ml/slave.sh
do
if [ ! -f $wj ]
then
echo “error,your miss $wj file.”
exit 1
else
/bin/chmod +x $wj
check
fi
done
##close seliux
sed -i ‘s/SELINUX=enforcing/SELINUX=disabled/’ /etc/selinux/config
selinux_s=`getenforce`
if [ $selinux_s == “Enforcing” -o $selinux_s == “enforcing” ]
then
setenforce 0
fi
##close iptables
iptables-save > /etc/sysconfig/iptables_`date +%s`
iptables -F
service iptables save
##install the mirror.aliyun.com
aliyun(){
cd /etc/yum.repos.d/
if rpm -qa |grep epel-release >/dev/null
then
rpm -e epel-release
fi
if [ -f epel.repo ]
then
/bin/mv epel.repo epel.repo.bak
fi
yum install -y wget
if [ -f CentOS-Base.repo ]
then
/bin/mv CentOS-Base.repo CentOS-Base.repo.bak
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo
wget http://mirrors.aliyun.com/repo/epel-6.repo -O /etc/yum.repos.d/epel.repo
fi
yum clean all
yum makecache
}
if [ `grep “aliyun.com” /etc/yum.repos.d/CentOS-Base.repo|wc -l` -eq 0 ]
then
aliyun
else
echo “aliyun epel is already installed.”
fi
#first to update datetime
[ `rpm -qa |grep ntpdate|wc -l` -eq 1 ] || yum install -y ntpdate
ntpdate 0.openwrt.pool.ntp.org 2>&1 >/dev/null;clock -w
###install lib software
syum(){
if ! rpm -qa|grep -q $1
then
yum install -y $1
check
else
echo “$1 is already installed”
fi
}
## install some packges for the first on setup.
for p in gcc perl perl-devel libaio libaio-devel pcre-devel zlib-devel cmake glibc pcre compat-libstdc++-33
do
syum $p
done
###variables,fuctions
mysql_5_1=http://mirrors.sohu.com/mysql/MySQL-5.1/mysql-5.1.73-linux-$ar-glibc23.tar.gz
mysql_5_6=http://mirrors.sohu.com/mysql/MySQL-5.6/mysql-5.6.31-linux-glibc2.5-$ar.tar.gz
mysql_5_7=http://mirrors.sohu.com/mysql/MySQL-5.7/mysql-5.7.12-linux-glibc2.5-$ar.tar.gz
#######################################
conf_mysql(){
cd /usr/local/mysql
if ! grep “^mysql:” /etc/passwd
then
useradd -s /sbin/nologin -M mysql
check
fi
[ -d /data/mysql ] && /bin/mv /data/mysql /data/mysql_`date +%s`
mkdir -p /data/mysql
chown -R mysql:mysql /data/mysql
###initialize
case $version in
5.1)
./scripts/mysql_install_db –user=mysql –datadir=/data/mysql
check
;;
5.6)
./scripts/mysql_install_db –user=mysql –datadir=/data/mysql
check
;;
5.7)
pswd5_7=`./bin/mysqld –user=mysql –datadir=/data/mysql –initialize 2>&1 |sed -r -n ‘/localhost: /p’|sed ‘s/.* //g’`
./bin/mysql_ssl_rsa_setup –datadir=/data/mysql
check
;;
esac
}
cp_mysql(){
###my.cnf
if [ -f /usr/local/mysql/support-files/my-huge.cnf ]
then
/bin/cp -rf support-files/my-huge.cnf /etc/my.cnf
check
sed -i ‘/^\[mysqld\]$/a\datadir = /data/mysql’ /etc/my.cnf
check
else
/bin/cp -rf support-files/my-default.cnf /etc/my.cnf
check
sed -i ‘/^\[mysqld\]$/a\socket = /tmp/mysql.sock’ /etc/my.cnf
sed -i ‘/^\[mysqld\]$/a\port = 3306’ /etc/my.cnf
sed -i ‘/^\[mysqld\]$/a\datadir = /data/mysql’ /etc/my.cnf
check
sed -i ‘/^\[mysqld\]$/a\basedir = /usr/local/mysql’ /etc/my.cnf
fi
####/etc/init.d/mysqld
if [ $version == 5.7 ]
then
/bin/cp support-files/mysql.server /etc/init.d/mysqld
check
sed -i ‘s#^datadir=#datadir=/data/mysql#’ /etc/init.d/mysqld
sed -i ‘s#^basedir=#basedir=/usr/local/mysql#’ /etc/init.d/mysqld
check
chmod 755 /etc/init.d/mysqld
chkconfig –add mysqld
chkconfig mysqld on
service mysqld start
check
else
/bin/cp support-files/mysql.server /etc/init.d/mysqld
sed -i ‘s#^datadir=#datadir=/data/mysql#’ /etc/init.d/mysqld
chmod 755 /etc/init.d/mysqld
chkconfig –add mysqld
chkconfig mysqld on
service mysqld start
check
fi
}
###install mysql
insall_mysql(){
echo “Chose the version of mysql.”
select mysql_v in 5.1 5.6 5.7
do
case $mysql_v in
5.1)
cd /usr/local/src
[ -f ${mysql_5_1##*/} ] || wget $mysql_5_1
tar zxf ${mysql_5_1##*/}
check_ok
[ -d /usr/local/mysql ] && /bin/mv /usr/local/mysql /usr/local/mysql_`date +%s`
mv `echo ${mysql_5_1##*/}|sed ‘s/.tar.gz//g’` /usr/local/mysql
check_ok
version=5.1
conf_mysql
cp_mysql
break
;;
5.6)
cd /usr/local/src
[ -f ${mysql_5_6##*/} ] || wget $mysql_5_6
tar zxf ${mysql_5_6##*/}
check_ok
[ -d /usr/local/mysql ] && /bin/mv /usr/local/mysql /usr/local/mysql_bak
mv `echo ${mysql_5_6##*/}|sed ‘s/.tar.gz//g’` /usr/local/mysql
check_ok
version=5.6
conf_mysql
cp_mysql
break
;;
5.7)
cd /usr/local/src
[ -f ${mysql_5_7##*/} ] || wget $mysql_5_7
tar zxf ${mysql_5_7##*/}
check_ok
[ -d /usr/local/mysql ] && /bin/mv /usr/local/mysql /usr/local/mysql_bak
mv `echo ${mysql_5_7##*/}|sed ‘s/.tar.gz//g’` /usr/local/mysql
check_ok
version=5.7
conf_mysql
cp_mysql
break
;;
*)
echo “only 1(5.1) 2(5.6) or 3(5.7) ”
exit 1
;;
esac
done
}
####change mysql password
passwd_mysql(){
if [ $version == 5.7 ]
then
/usr/local/mysql/bin/mysql -uroot -p$pswd5_7 –connect-expired-password -e “set password=password(‘$my_passwd’);”
check
else
/usr/local/mysql/bin/mysql -uroot -e “set password=password(‘$my_passwd’);”
check
fi
}
######
if [ `ps aux|grep mysql|wc -l` -gt 1 ]
then
echo “mysql is already start”
else
insall_mysql
passwd_mysql
fi
####start install slave
echo “#############################”
echo “## ##”
echo “## slave install ##”
echo “## ##”
echo “#############################”
##first check master tool
if ! rpm -qa|grep -q rsync
then
yum install -y rsync
fi
if ! rpm -qa|grep -q expect
then
yum install -y expect
fi
###replication building for master first
if [ `ps aux|grep mysql|wc -l` -gt 1 ] && [ `grep “log_bin = mysql-bin” /etc/my.cnf|wc -l` -eq 0 ] && [ `grep “log-bin=mysql-bin” /etc/my.cnf|wc -l` -eq 0 ]
then
/etc/init.d/mysqld stop
check
sed -i ‘/^\[mysqld\]$/a\server_id = 1’ /etc/my.cnf
sed -i ‘/^\[mysqld\]$/a\log_bin = mysql-bin’ /etc/my.cnf
sed -i ‘/^\[mysqld\]$/a\binlog_format = “MIXED”‘ /etc/my.cnf
check
/etc/init.d/mysqld start
check
fi
master_bin=`/usr/local/mysql/bin/mysql -uroot -p$my_passwd -e “show master status \G;”|grep File|awk ‘{print $2}’`
master_pos=`/usr/local/mysql/bin/mysql -uroot -p$my_passwd -e “show master status \G;”|grep Position|awk ‘{print $2}’`
echo $master_bin >>/tmp/slave.tmp
echo $master_pos >>/tmp/slave.tmp
/usr/local/mysql/bin/mysql -uroot -p$my_passwd -e “grant replication slave on *.* to $rp_user@’$s_host’ identified by ‘$rp_passwd’;”
check
/usr/local/mysql/bin/mysql -uroot -p$my_passwd -e “flush privileges;”
check
###dump date
/usr/local/mysql/bin/mysqldump -uroot -p$my_passwd –single-transaction -A > /tmp/all.sql
check
####cp file to slave
if [ `pwd` != $ml ]
then
cd $ml
fi
./ins_rsync.expect $s_user $s_host $s_passwd
for file in /usr/local/src/mysql-* /etc/my.cnf /etc/init.d/mysqld ./slave.sh /tmp/slave.tmp /tmp/all.sql
do
./cp_slave.expect $s_user $s_host $s_passwd $file
done
./slave.expect $s_host $s_passwd /tmp/slave.sh
shell习题-部署mysql主从
2017年11月20日
shell习题
No Comments
aming
用shell脚本实现，部署mysql主从架构。
思路是这样的：
1）master.sh脚本用来安装master的mysql
2）然后通过expect脚本+rsync工具把slave.sh脚本、/etc/my.cnf、 /etc/init.d/mysqld 还有mysqldump下来的all.sql，以及在master下载下来的mysql二进制安装包传到slave上
3）通过expect脚本来运行slave.sh的脚本来安装，并且配置好主从，期间，用slave.tmp来记录master机子的binlog的状态，以便于传到slave后用命令添加进去。
参考答案：
cp_slave.expect
#!/usr/bin/expect
set user [lindex $argv 0]
set host [lindex $argv 1]
set passwd [lindex $argv 2]
set file [lindex $argv 3]
spawn rsync -avzP $file $user@$host:/tmp
set timeout 600
expect {
“yes/no” { send “yes\r”}
“password:” { send “$passwd\r” }
}
expect eof
ins_rsync.expect
#!/usr/bin/expect
set user [lindex $argv 0]
set host [lindex $argv 1]
set passwd [lindex $argv 2]
spawn ssh $user@$host
expect {
“yes/no” { send “yes\r”;exp_continue}
“password:” { send “$passwd\r” }
}
expect “]*”
send “yum install -y rsync\rexit\r”
interact
slave.expect
#!/usr/bin/expect
set host [lindex $argv 0]
set passwd [lindex $argv 1]
set cm [lindex $argv 2]
spawn ssh root@$host
expect {
“yes/no” { send “yes\r”}
“password:” { send “$passwd\r” }
}
expect “]*”
send “$cm\rexit\r”
interact
slave.sh
#!/bin/bash
####this is for building slave script
##by lv.
####master ip address
mas_ip=192.168.47.24
###mysql password conf
my_passwd=hd8832508
####replication user and password
rp_user=hd
rp_passwd=hd8832508
###check ok
check(){
if [ $? != 0 ]
then
echo “error,please check log.”
exit 1
fi
}
##close seliux
sed -i ‘s/SELINUX=enforcing/SELINUX=disabled/’ /etc/selinux/config
selinux_s=`getenforce`
if [ $selinux_s == “Enforcing” -o $selinux_s == “enforcing” ]
then
setenforce 0
fi
##close iptables
iptables-save > /etc/sysconfig/iptables_`date +%s`
iptables -F
service iptables save
##install the mirror.aliyun.com
cd /etc/yum.repos.d/
if rpm -qa |grep epel-release >/dev/null
then
rpm -e epel-release
fi
if [ -f epel.repo ]
then
/bin/mv epel.repo epel.repo.bak
fi
yum install -y wget
if [ -f CentOS-Base.repo ]
then
/bin/mv CentOS-Base.repo CentOS-Base.repo.bak
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo
wget http://mirrors.aliyun.com/repo/epel-6.repo -O /etc/yum.repos.d/epel.repo
fi
yum clean all
yum makecache
#first to update datetime
[ `rpm -qa |grep ntpdate|wc -l` -eq 1 ] || yum install -y ntpdate
ntpdate 0.openwrt.pool.ntp.org 2>&1 >/dev/null;clock -w
###install lib software
syum(){
if ! rpm -qa|grep -q $1
then
yum install -y $1
check
else
echo “$1 is already installed”
fi
}
## install some packges for the first on setup.
for p in gcc perl perl-devel libaio libaio-devel pcre-devel zlib-devel cmake glibc pcre compat-libstdc++-33
do
syum $p
done
###check file is already in tmp
if [ ! -f /tmp/my.cnf ] && [ ! -f /tmp/mysqld ] && [ ! -f /tmp/mysql-* ] && [ ! -f /tmp/slave.tmp ]
then
echo “error,please try to sync again”
exit 1
fi
mysql=`ls /tmp |grep tar.gz`
version=`echo /tmp/$mysql|awk -F – ‘{print $2}’|cut -d. -f2`
######install mysql
cd /tmp
tar -zxf $mysql
mv `echo $mysql|sed ‘s/.tar.gz//g’` /usr/local/mysql
cd /usr/local/mysql
if ! grep “^mysql:” /etc/passwd
then
useradd -s /sbin/nologin -M mysql
check
fi
[ -d /data/mysql ] && /bin/mv /data/mysql /data/mysql_`date +%s`
mkdir -p /data/mysql
chown -R mysql:mysql /data/mysql
###initialize
case $version in
1)
/usr/local/mysql/scripts/mysql_install_db –user=mysql –datadir=/data/mysql
check
sed -i ‘/^server-id/’d /tmp/my.cnf
check
sed -i ‘/\[mysqld\]/a\server-id=2’ /tmp/my.cnf
check
;;
6)
/usr/local/mysql/scripts/mysql_install_db –user=mysql –datadir=/data/mysql
check
sed -i ‘/^server_id/’d /tmp/my.cnf
check
sed -i ‘/\[mysqld\]/a\server_id = 2’ /tmp/my.cnf
check
;;
7)
pswd5_7=`/usr/local/mysql/bin/mysqld –user=mysql –datadir=/data/mysql –initialize 2>&1 |sed -r -n ‘/localhost: /p’|sed ‘s/.* //g’`
/usr/local/mysql/bin/mysql_ssl_rsa_setup –datadir=/data/mysql
check
sed -i ‘/^server_id/’d /tmp/my.cnf
check
sed -i ‘/\[mysqld\]/a\server_id = 2’ /tmp/my.cnf
check
;;
esac
###cp conf file
/bin/cp -rf /tmp/my.cnf /etc/my.cnf
check
/bin/cp -rf /tmp/mysqld /etc/init.d/
check
chmod 755 /etc/init.d/mysqld
chkconfig –add mysqld
chkconfig mysqld on
service mysqld start
check
####change mysql password
if [ $version -eq 7 ]
then
/usr/local/mysql/bin/mysql -uroot -p$pswd5_7 –connect-expired-password -e “set password=password(‘$my_passwd’);”
check
else
/usr/local/mysql/bin/mysql -uroot -e “set password=password(‘$my_passwd’);”
check
fi
###input date
if [ -f /tmp/all.sql ]
then
/usr/local/mysql/bin/mysql -uroot -p$my_passwd < /tmp/all.sql
check
else
echo “date error.”
exit 1
fi
######binlog
slave_bin=`grep “mysql-bin” /tmp/slave.tmp`
slave_pos=`grep ‘^[0-9]’ /tmp/slave.tmp`
###stop slave
/usr/local/mysql/bin/mysql -uroot -p$my_passwd -e “stop slave;”
check
###configure slave
/usr/local/mysql/bin/mysql -uroot -p$my_passwd -e “change master to master_host=’$mas_ip’,master_port=3306,master_user=’$rp_user’,master_password=’$rp_passwd’,master_log_file=’$slave_bin’,master_log_pos=$slave_pos;”
check
###start slave
/usr/local/mysql/bin/mysql -uroot -p$my_passwd -e “start slave;”
check
###check repecation status
show=`/usr/local/mysql/bin/mysql -uroot -p$my_passwd -e “show slave status\G;”|grep ‘Slave_IO_Running:’`
slaveIO=`echo $show|awk -F’:’ ‘{print $2}’`
Slave_SQL=`echo $show|awk -F’:’ ‘{print $2}’`
if [ $slaveIO == Yes ] && [$Slave_SQL == Yes ]
then
echo “mysql repliation is start”
/bin/rm -rf /tmp/all.sql /tmp/$mysql /tmp/mysqld /tmp/my.cnf /tmp/slave.tmp
else
echo “error,please check the log.”
fi
master.sh
#!/bin/bash
#####this is building mysql replication###
##by lv.
ml=`pwd`
ar=`arch`
###mysql password conf
my_passwd=hd8832508
####replication user and password
rp_user=hd
rp_passwd=hd8832508
###slave conf
s_user=root
s_host=192.168.47.25
s_passwd=hd8832508
###check ok
check(){
if [ $? != 0 ]
then
echo “error,please check log.”
exit 1
fi
}
####check the file is exist
for wj in $ml/cp_slave.expect $ml/ins_rsync.expect $ml/slave.expect $ml/slave.sh
do
if [ ! -f $wj ]
then
echo “error,your miss $wj file.”
exit 1
else
/bin/chmod +x $wj
check
fi
done
##close seliux
sed -i ‘s/SELINUX=enforcing/SELINUX=disabled/’ /etc/selinux/config
selinux_s=`getenforce`
if [ $selinux_s == “Enforcing” -o $selinux_s == “enforcing” ]
then
setenforce 0
fi
##close iptables
iptables-save > /etc/sysconfig/iptables_`date +%s`
iptables -F
service iptables save
##install the mirror.aliyun.com
aliyun(){
cd /etc/yum.repos.d/
if rpm -qa |grep epel-release >/dev/null
then
rpm -e epel-release
fi
if [ -f epel.repo ]
then
/bin/mv epel.repo epel.repo.bak
fi
yum install -y wget
if [ -f CentOS-Base.repo ]
then
/bin/mv CentOS-Base.repo CentOS-Base.repo.bak
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo
wget http://mirrors.aliyun.com/repo/epel-6.repo -O /etc/yum.repos.d/epel.repo
fi
yum clean all
yum makecache
}
if [ `grep “aliyun.com” /etc/yum.repos.d/CentOS-Base.repo|wc -l` -eq 0 ]
then
aliyun
else
echo “aliyun epel is already installed.”
fi
#first to update datetime
[ `rpm -qa |grep ntpdate|wc -l` -eq 1 ] || yum install -y ntpdate
ntpdate 0.openwrt.pool.ntp.org 2>&1 >/dev/null;clock -w
###install lib software
syum(){
if ! rpm -qa|grep -q $1
then
yum install -y $1
check
else
echo “$1 is already installed”
fi
}
## install some packges for the first on setup.
for p in gcc perl perl-devel libaio libaio-devel pcre-devel zlib-devel cmake glibc pcre compat-libstdc++-33
do
syum $p
done
###variables,fuctions
mysql_5_1=http://mirrors.sohu.com/mysql/MySQL-5.1/mysql-5.1.73-linux-$ar-glibc23.tar.gz
mysql_5_6=http://mirrors.sohu.com/mysql/MySQL-5.6/mysql-5.6.31-linux-glibc2.5-$ar.tar.gz
mysql_5_7=http://mirrors.sohu.com/mysql/MySQL-5.7/mysql-5.7.12-linux-glibc2.5-$ar.tar.gz
#######################################
conf_mysql(){
cd /usr/local/mysql
if ! grep “^mysql:” /etc/passwd
then
useradd -s /sbin/nologin -M mysql
check
fi
[ -d /data/mysql ] && /bin/mv /data/mysql /data/mysql_`date +%s`
mkdir -p /data/mysql
chown -R mysql:mysql /data/mysql
###initialize
case $version in
5.1)
./scripts/mysql_install_db –user=mysql –datadir=/data/mysql
check
;;
5.6)
./scripts/mysql_install_db –user=mysql –datadir=/data/mysql
check
;;
5.7)
pswd5_7=`./bin/mysqld –user=mysql –datadir=/data/mysql –initialize 2>&1 |sed -r -n ‘/localhost: /p’|sed ‘s/.* //g’`
./bin/mysql_ssl_rsa_setup –datadir=/data/mysql
check
;;
esac
}
cp_mysql(){
###my.cnf
if [ -f /usr/local/mysql/support-files/my-huge.cnf ]
then
/bin/cp -rf support-files/my-huge.cnf /etc/my.cnf
check
sed -i ‘/^\[mysqld\]$/a\datadir = /data/mysql’ /etc/my.cnf
check
else
/bin/cp -rf support-files/my-default.cnf /etc/my.cnf
check
sed -i ‘/^\[mysqld\]$/a\socket = /tmp/mysql.sock’ /etc/my.cnf
sed -i ‘/^\[mysqld\]$/a\port = 3306’ /etc/my.cnf
sed -i ‘/^\[mysqld\]$/a\datadir = /data/mysql’ /etc/my.cnf
check
sed -i ‘/^\[mysqld\]$/a\basedir = /usr/local/mysql’ /etc/my.cnf
fi
####/etc/init.d/mysqld
if [ $version == 5.7 ]
then
/bin/cp support-files/mysql.server /etc/init.d/mysqld
check
sed -i ‘s#^datadir=#datadir=/data/mysql#’ /etc/init.d/mysqld
sed -i ‘s#^basedir=#basedir=/usr/local/mysql#’ /etc/init.d/mysqld
check
chmod 755 /etc/init.d/mysqld
chkconfig –add mysqld
chkconfig mysqld on
service mysqld start
check
else
/bin/cp support-files/mysql.server /etc/init.d/mysqld
sed -i ‘s#^datadir=#datadir=/data/mysql#’ /etc/init.d/mysqld
chmod 755 /etc/init.d/mysqld
chkconfig –add mysqld
chkconfig mysqld on
service mysqld start
check
fi
}
###install mysql
insall_mysql(){
echo “Chose the version of mysql.”
select mysql_v in 5.1 5.6 5.7
do
case $mysql_v in
5.1)
cd /usr/local/src
[ -f ${mysql_5_1##*/} ] || wget $mysql_5_1
tar zxf ${mysql_5_1##*/}
check_ok
[ -d /usr/local/mysql ] && /bin/mv /usr/local/mysql /usr/local/mysql_`date +%s`
mv `echo ${mysql_5_1##*/}|sed ‘s/.tar.gz//g’` /usr/local/mysql
check_ok
version=5.1
conf_mysql
cp_mysql
break
;;
5.6)
cd /usr/local/src
[ -f ${mysql_5_6##*/} ] || wget $mysql_5_6
tar zxf ${mysql_5_6##*/}
check_ok
[ -d /usr/local/mysql ] && /bin/mv /usr/local/mysql /usr/local/mysql_bak
mv `echo ${mysql_5_6##*/}|sed ‘s/.tar.gz//g’` /usr/local/mysql
check_ok
version=5.6
conf_mysql
cp_mysql
break
;;
5.7)
cd /usr/local/src
[ -f ${mysql_5_7##*/} ] || wget $mysql_5_7
tar zxf ${mysql_5_7##*/}
check_ok
[ -d /usr/local/mysql ] && /bin/mv /usr/local/mysql /usr/local/mysql_bak
mv `echo ${mysql_5_7##*/}|sed ‘s/.tar.gz//g’` /usr/local/mysql
check_ok
version=5.7
conf_mysql
cp_mysql
break
;;
*)
echo “only 1(5.1) 2(5.6) or 3(5.7) ”
exit 1
;;
esac
done
}
####change mysql password
passwd_mysql(){
if [ $version == 5.7 ]
then
/usr/local/mysql/bin/mysql -uroot -p$pswd5_7 –connect-expired-password -e “set password=password(‘$my_passwd’);”
check
else
/usr/local/mysql/bin/mysql -uroot -e “set password=password(‘$my_passwd’);”
check
fi
}
######
if [ `ps aux|grep mysql|wc -l` -gt 1 ]
then
echo “mysql is already start”
else
insall_mysql
passwd_mysql
fi
####start install slave
echo “#############################”
echo “## ##”
echo “## slave install ##”
echo “## ##”
echo “#############################”
##first check master tool
if ! rpm -qa|grep -q rsync
then
yum install -y rsync
fi
if ! rpm -qa|grep -q expect
then
yum install -y expect
fi
###replication building for master first
if [ `ps aux|grep mysql|wc -l` -gt 1 ] && [ `grep “log_bin = mysql-bin” /etc/my.cnf|wc -l` -eq 0 ] && [ `grep “log-bin=mysql-bin” /etc/my.cnf|wc -l` -eq 0 ]
then
/etc/init.d/mysqld stop
check
sed -i ‘/^\[mysqld\]$/a\server_id = 1’ /etc/my.cnf
sed -i ‘/^\[mysqld\]$/a\log_bin = mysql-bin’ /etc/my.cnf
sed -i ‘/^\[mysqld\]$/a\binlog_format = “MIXED”‘ /etc/my.cnf
check
/etc/init.d/mysqld start
check
fi
master_bin=`/usr/local/mysql/bin/mysql -uroot -p$my_passwd -e “show master status \G;”|grep File|awk ‘{print $2}’`
master_pos=`/usr/local/mysql/bin/mysql -uroot -p$my_passwd -e “show master status \G;”|grep Position|awk ‘{print $2}’`
echo $master_bin >>/tmp/slave.tmp
echo $master_pos >>/tmp/slave.tmp
/usr/local/mysql/bin/mysql -uroot -p$my_passwd -e “grant replication slave on *.* to $rp_user@’$s_host’ identified by ‘$rp_passwd’;”
check
/usr/local/mysql/bin/mysql -uroot -p$my_passwd -e “flush privileges;”
check
###dump date
/usr/local/mysql/bin/mysqldump -uroot -p$my_passwd –single-transaction -A > /tmp/all.sql
check
####cp file to slave
if [ `pwd` != $ml ]
then
cd $ml
fi
./ins_rsync.expect $s_user $s_host $s_passwd
for file in /usr/local/src/mysql-* /etc/my.cnf /etc/init.d/mysqld ./slave.sh /tmp/slave.tmp /tmp/all.sql
do
./cp_slave.expect $s_user $s_host $s_passwd $file
done
./slave.expect $s_host $s_passwd /tmp/slave.sh