MySQL5.7多实例自动化部署脚本

影者东升

　　一、安装说明
　　------------------------------------------------------
　　mysql5.7.10_onekey_install.sh自动化部署脚本支持mysql5.7.10初始化安装，多实例创建，且使用经过优化后的my.cnf配置文件和mysql.server启动脚本，该SHELL脚本在CentOS6.5_x86_64操作系统测试通过。部署示意图如下：

　　1、安装方式

　　需要准备的文件如下，放到同一个目录下，然后执行shell脚本
　　执行方式：

./mysql5.7.10_onekey_install.sh 3307 
端口自定义，要求整数，且不和服务器端口冲突

# tree mysql5.7.10_onekey_install
mysql5.7.10_onekey_install
├── my.cnf
├── mysql-5.7.10-linux-glibc2.5-x86_64.tar.gz
├── mysql5.7.10_onekey_install.sh
└── mysql.server

　　

1、如果是首次安装mysql，则会构建所需的所有预安装环境并创建第一个实例；
2、如果不是首次安装mysql，则会在原有基础上创建多实例；
　　

　　2、安装软件版本

- 操作系统：CentOS6.5_x86_64
- MySQL版本：mysql-5.7.10-linux-glibc2.5-x86_64.tar.gz （最新版本5.7.10）
　　

　　3、安装目录规划

上传软件包目录：/home/zkyw/install
mysql程序目录：/opt/application/mysql
mysql实例数据文件目录：/data/$Port
　　

　　4、程序启停操作

启动mysql实例：/data/$Port/mysql.server start
停止mysql实例: /data/$Port/mysql.server stop
查看mysql实例状态：/data/$Port/mysql.server status
　　

　　5、脚本执行过程

第一步：对传入的参数（端口号）做判断，要求为整数且不能与服务器已有端口号冲突；
第二步：如果服务器还没有安装过mysql，则进行初始化安装，自动配置所需安装环境；
第三步：如果服务器上已经安装了mysql，则会创建多实例；
第四步：初始化安装过程：删除msyql相关的rpm包→安装libaio包→创建安装所需的用户目录等→安装mysql→配置mysql
第五步：创建多实例过程：创建目录并授权→安装mysql→配置mysql
二、自动化部署脚本
--------------------------------------------------------

#!/bin/sh
#auto install mysql5.7.10
 
#setting default directory
Port=$1
SoftDir="/home/zkyw/install"
tarbag="mysql-5.7.10-linux-glibc2.5-x86_64"
BaseDir="/opt/application/mysql"
DataDir="/data/$Port"
 
#remove before being installed mysql
function rmMysql() {
    yum -y erase mysql >/dev/null 2>&1
    yum -y erase mysql-server >/dev/null 2>&1
    ret=`rpm -aq | grep -i "mysql-5" | wc -l`
    num=`rpm -aq | grep -i "mysql-server" | wc -l`
    test $ret -eq 1 && echo "mysql uninstall failed" && exit 1
    test $num -eq 1 &&  echo "mysql-server uninstall failed" && exit 2
}
#libaio package is needed for mysql5.7.10
function chkEnv() {
    yum -y install libaio >/dev/null 2>&1
    res=`rpm -aq|grep libaio | wc -l`
    test $res -ne 1 && echo "libaio package install failed..." && exit 3
}
 
#create mysql user and group, authorization, extract
function preInstall() {
    /usr/sbin/groupadd mysql
    /usr/sbin/useradd -r -g mysql -s /bin/false mysql
    mkdir -p $BaseDir
    mkdir -p $DataDir/data
    chown mysql.mysql $DataDir
    if test -f $SoftDir/$tarbag.tar.gz
      then
        cd $SoftDir && tar -zxf $tarbag.tar.gz
        cd $SoftDir/$tarbag && cp -r * $BaseDir
      else
        echo "$tarbag.tar.gz is not found..."
        exit 10
    fi
}
 
function multPreInstall() {
  mkdir -p $DataDir/data
    chown mysql.mysql $DataDir
}
 
function install_mysql() {
    #initialize mysql database
    $BaseDir/bin/mysqld \
    --initialize \
    --user=mysql \
    --basedir=$BaseDir \
    --datadir=$DataDir/data \
    --character-set-server=utf8 \
    --collation-server=utf8_general_ci \
    --initialize-insecure >/dev/null 2>&1
}
#get my.cnf and start/stop script, attention alter parameters by your envionment
function conf_mysql() {
    cp $SoftDir/my.cnf $DataDir
    cp $SoftDir/mysql.server $DataDir
/usr/bin/vim $DataDir/my.cnf<<EOF >/dev/null 2>&1
:%s/3306/$Port/g
:wq
EOF
    sed -i "s/port=3306/port=$Port/" $DataDir/mysql.server
    sed -i "s%CmdPath=""%CmdPath="${BaseDir}\/bin"%" $DataDir/mysql.server
    sed -i "s%mysql_sock=""%mysql_sock="${DataDir}\/mysql.sock"%" $DataDir/mysql.server
    chmod 600 $DataDir/my.cnf
    chmod 700 $DataDir/mysql.server
    $DataDir/mysql.server start >/dev/null 2>&1
    sleep 3
#    ren=`netstat -natp|grep mysqld | grep "$1" | wc -l`
   
    if test -e $DataDir/mysql.sock;then
    echo "$DataDir/mysql.sock"
        echo -e "\033[33;1mmysql install success...\033[0m"
    pro=`grep $BaseDir /root/.bash_profile | wc -l`
    if test "$pro" -ne 1;then
      sed -i "s%PATH=\$PATH\:\$HOME\/bin%PATH=\$PATH\:\$HOME\/bin\:$BaseDir\/bin%" /root/.bash_profile
      source /root/.bash_profile
        fi
    else
        echo -e "\033[31;1mmysql install failed...\033[0m"
    fi
}
 
if [[ "$1" =~ ^[0-9]+$ ]]; then
   inPort=`netstat -natp | grep "mysqld" | grep "LISTEN" | awk '{print $4}' | cut -b 4-`
   if test ! -z "$inPort";then
    for myPort in $inPort
      do
      if test "$myPort" -eq "$1";then
        echo -e "\033[33;1m$1 instance has already existed...\033[0m"
        exit 1
      fi
    done
     echo -e "\033[32;1m===========================================\033[0m"
     echo -e "\033[32;1mStarting create new instance $1\033[0m"
     multPreInstall
     install_mysql
     echo -e "\033[32;1m===========================================\033[0m"
     echo -e "\033[32;1mconfiguration and starting $1 instance...\033[0m"
     conf_mysql
   else
     echo -e "\033[32;1m===========================================\033[0m"
     echo -e "\033[32;1mremove before being installed mysql...\033[0m"
     rmMysql
     echo -e "\033[32;1m===========================================\033[0m"
     echo -e "\033[32;1minstall libaio package...\033[0m"
     chkEnv
     echo -e "\033[32;1m===========================================\033[0m"
     echo -e "\033[32;1mget ready install envionment...\033[0m"  
     preInstall
     echo -e "\033[32;1m===========================================\033[0m"
     echo -e "\033[32;1mStarting install mysql ver5.7.10...\033[0m"
     install_mysql
     echo -e "\033[32;1m===========================================\033[0m"
     echo -e "\033[32;1mconfiguration mysql and starting mysql...\033[0m"
     conf_mysql
   fi
else
   echo "Usage: $0 Port (Port is inteager)"
fi

　　三、MySQL优化后的配置文件（my.cnf）

[client]
port = 3306
socket = /data/3306/mysql.sock
character-set-server = utf8
 
[mysql]
no-auto-rehash
 
[mysqld]
user  = mysql
port  = 3306
character-set-server = utf8
socket  = /data/3306/mysql.sock
basedir = /opt/application/mysql
datadir = /data/3306/data
explicit_defaults_for_timestamp = true
skip-ssl
secure-file-priv = NULL
lower_case_table_names = 1
back_log = 300
max_connections = 3000
max_connect_errors = 100
table_open_cache = 4096
external-locking = FALSE
max_allowed_packet = 32M
sort_buffer_size = 16M
join_buffer_size = 16M
thread_cache_size = 16
query_cache_size = 128M
query_cache_limit = 4M
ft_min_word_len = 8
thread_stack = 512K
transaction_isolation = REPEATABLE-READ
tmp_table_size = 128M
max_heap_table_size = 128M
 
###*** slow query parameters
long_query_time = 6
slow_query_log
slow_query_log_file = /data/3306/slow.log
 
###*** binlog parameters
log-bin = /data/3306/mysql-bin
binlog_cache_size = 4M
max_binlog_cache_size = 16M
max_binlog_size = 32M
binlog_format = MIXED
expire_logs_days = 7
 
###*** relay-log parameters
#relay-log = /data/3307/relay-bin
#relay-log-info-file = /data/3307/relay-log.info
#master-info-repository = table
#relay-log-info-repository = table
#relay-log-recovery = 1
 
#*** MyISAM parameters
key_buffer_size = 16M
read_buffer_size = 1M
read_rnd_buffer_size = 16M
bulk_insert_buffer_size = 1M
 
#skip-name-resolve
 
###*** master-slave replication parameters
server-id = 105
slave-skip-errors = all
 
#*** Innodb storage engine parameters
innodb_buffer_pool_size = 6G
innodb_data_file_path = ibdata1:10M:autoextend
#innodb_file_io_threads = 8
innodb_thread_concurrency = 16
innodb_flush_log_at_trx_commit = 2
innodb_log_buffer_size = 16M
innodb_log_file_size = 512M
innodb_log_files_in_group = 3
innodb_max_dirty_pages_pct = 90
innodb_lock_wait_timeout = 120
innodb_file_per_table = on
 
[mysqldump]
quick
max_allowed_packet = 32M
 
[myisamchk]
key_buffer = 16M
sort_buffer_size = 16M
read_buffer = 8M
write_buffer = 8M
 
[mysqld_safe]
open-files-limit = 8192
log-error=/data/3306/mysql_3306.err
pid-file=/data/3306/mysqld.pid

四、MySQL启动脚本（mysql.server）　　#!/bin/sh
　　# This is an interactive program, we needthe current locale
　　[ -f /etc/profile.d/lang.sh ] && . /etc/profile.d/lang.sh
　　# We can't Japanese on normal console atboot time, so force.
　　if [ "$LANG" = "ja" -o "$LANG" = "ja_JP.eucJP" ]; then
　　   if [ "$TERM" = "linux" ] ; then
　　       LANG=C
　　   fi
　　fi
　　   
　　# Source function library.
　　. /etc/init.d/functions
　　#init
　　port=3306
　　mysql_user="root"
　　mysql_pwd=""
　　CmdPath=""
　　mysql_sock=""
　　#startup function
　　function_start_mysql()
　　{
　　    if [ ! -e "$mysql_sock" ];then
　　      printf "Starting MySQL...\n"
　　      ${CmdPath}/mysqld_safe --defaults-file=/data/${port}/my.cnf --ledir=${CmdPath} 2>&1 > /dev/null &
　　      sleep 2
　　    else
　　      printf "MySQL is running...\n"
　　      exit
　　    fi
　　}
　　#stop function
　　function_stop_mysql()
　　{
　　    if [ ! -e "$mysql_sock" ];then
　　       printf "MySQL is stopped...\n"
　　       exit
　　    else
　　       printf "Stoping MySQL...\n"
　　       ${CmdPath}/mysqladmin -u ${mysql_user} -p${mysql_pwd} -S $mysql_sock shutdown
　　       sleep 2
　　   fi
　　}
　　#restart function
　　function_restart_mysql()
　　{
　　    printf "Restarting MySQL...\n"
　　    function_stop_mysql
　　    sleep 2
　　    function_start_mysql
　　}
　　case $1 in
　　start)
　　    function_start_mysql
　　;;
　　stop)
　　    function_stop_mysql
　　;;
　　restart)
　　    function_restart_mysql
　　;;
　　status)
　　    status mysqld
　　;;
　　*)
　　    printf "Usage: /data/${port}/mysql {start|stop|restart|status}\n"
　　esac