centos7 SystemV 开机自启动脚本配置方法 redis集群三主三从

centos7 SystemV 开机自启动脚本配置方法 redis集群三主三从

• 1、安装redis集群
• 2、编写redis启动脚本
• • 2.1、建立启动脚本
  • 2.2、复制多份redis启动脚本给集群使用
  • 2.3、添加可执行权限
• 3、配置开机自启动

1、安装redis集群

参考: redis三主三从集群安装

2、编写redis启动脚本

2.1、建立启动脚本

https://github.com/redis/redis/blob/unstable/utils/redis_init_script
vi /etc/init.d/redis_init_script 把下面代码粘贴到文件里保存

#!/bin/sh
#
# Simple Redis init.d script conceived to work on Linux systems
# as it does use of the /proc filesystem.
 
### BEGIN INIT INFO
# Provides:     redis_6379
# Default-Start:        2 3 4 5
# Default-Stop:         0 1 6
# Short-Description:    Redis data structure server
# Description:          Redis data structure server. See https://redis.io
### END INIT INFO
 
REDISPORT=6379
EXEC=/usr/local/bin/redis-server
CLIEXEC=/usr/local/bin/redis-cli
 
PIDFILE=/var/run/redis_${REDISPORT}.pid
CONF="/etc/redis/${REDISPORT}.conf"
 
case "$1" in
    start)
        if [ -f $PIDFILE ]
        then
                echo "$PIDFILE exists, process is already running or crashed"
        else
                echo "Starting Redis server..."
                $EXEC $CONF
        fi
        ;;
    stop)
        if [ ! -f $PIDFILE ]
        then
                echo "$PIDFILE does not exist, process is not running"
        else
                PID=$(cat $PIDFILE)
                echo "Stopping ..."
                $CLIEXEC -p $REDISPORT shutdown
                while [ -x /proc/${PID} ]
                do
                    echo "Waiting for Redis to shutdown ..."
                    sleep 1
                done
                echo "Redis stopped"
        fi
        ;;
    *)
        echo "Please use start or stop as first argument"
        ;;
esac

改造下面参数

REDISPORT=6379
EXEC=/usr/local/bin/redis-server
CLIEXEC=/usr/local/bin/redis-cli
 
PIDFILE=/var/run/redis_${REDISPORT}.pid
CONF="/etc/redis/${REDISPORT}.conf"
$EXEC $CONF

改造后示例

REDISPORT=7000
EXEC=/usr/local/redis/bin/redis-server
CLIEXEC=/usr/local/redis/bin/redis-cli
 
PIDFILE=/var/run/redis/redis_${REDISPORT}.pid
CONF="/usr/local/redis/conf/${REDISPORT}.conf"
nohup $EXEC $CONF &

改造后脚本示例

#!/bin/sh
#
# Simple Redis init.d script conceived to work on Linux systems
# as it does use of the /proc filesystem.
 
### BEGIN INIT INFO
# Provides:     redis_6379
# Default-Start:        2 3 4 5
# Default-Stop:         0 1 6
# Short-Description:    Redis data structure server
# Description:          Redis data structure server. See https://redis.io
### END INIT INFO
 
REDISPORT=7000
EXEC=/usr/local/redis/bin/redis-server
CLIEXEC=/usr/local/redis/bin/redis-cli
 
PIDFILE=/var/run/redis/redis_${REDISPORT}.pid
CONF="/usr/local/redis/conf/${REDISPORT}.conf"
 
case "$1" in
    start)
        if [ -f $PIDFILE ]
        then
                echo "$PIDFILE exists, process is already running or crashed"
        else
                echo "Starting Redis server..."
                nohup $EXEC $CONF &
        fi
        ;;
    stop)
        if [ ! -f $PIDFILE ]
        then
                echo "$PIDFILE does not exist, process is not running"
        else
                PID=$(cat $PIDFILE)
                echo "Stopping ..."
                $CLIEXEC -p $REDISPORT shutdown
                while [ -x /proc/${PID} ]
                do
                    echo "Waiting for Redis to shutdown ..."
                    sleep 1
                done
                echo "Redis stopped"
        fi
        ;;
    *)
        echo "Please use start or stop as first argument"
        ;;
esac

2.2、复制多份redis启动脚本给集群使用

cd /etc/init.d
cp redis_init_script redis_init_script_6379
cp redis_init_script redis_init_script_6380
…

[root@localhost init.d]# cd /etc/init.d/
[root@localhost init.d]# ls -l
total 44
-rw-r--r--. 1 root root 18281 Aug 24  2018 functions
-rwxr-xr-x. 1 root root  4569 Aug 24  2018 netconsole
-rwxr-xr-x. 1 root root  7923 Aug 24  2018 network
-rw-r--r--. 1 root root  1160 Oct 31  2018 README
-rwxr-xr-x. 1 root root     1 Mar 31 15:19 redis_init_script_6379
-rwxr-xr-x. 1 root root     0 Mar 31 15:19 redis_init_script_6380
[root@localhost init.d]#

注意：
CONF=“/etc/redis/${REDISPORT}.conf”
在/etc/redis下相对应准备多份配置文件给集群使用

[root@localhost redis]# cd /etc/redis/
[root@localhost redis]# ls -l 63*
-rw-r--r--. 1 root root 0 Mar 31 15:16 6379.conf
-rw-r--r--. 1 root root 0 Mar 31 15:16 6380.conf
[root@localhost redis]#

2.3、添加可执行权限

chmod +x /etc/init.d/redis_init_script_6379
chmod +x /etc/init.d/redis_init_script_6380
…

3、配置开机自启动

添加开机自启动
chkconfig --add redis_init_script_6379
chkconfig --add redis_init_script_6380

[root@localhost init.d]# chkconfig --list
 
Note: This output shows SysV services only and does not include native
      systemd services. SysV configuration data might be overridden by native
      systemd configuration.
 
      If you want to list systemd services use 'systemctl list-unit-files'.
      To see services enabled on particular target use
      'systemctl list-dependencies [target]'.
 
netconsole     	0:off	1:off	2:off	3:off	4:off	5:off	6:off
network        	0:off	1:off	2:on	3:on	4:on	5:on	6:off
[root@localhost init.d]# chkconfig --add redis_init_script_63
redis_init_script_6379  redis_init_script_6380  
[root@localhost init.d]# chkconfig --add redis_init_script_6379 
[root@localhost init.d]# chkconfig --add redis_init_script_6380
[root@localhost init.d]# chkconfig --list
 
Note: This output shows SysV services only and does not include native
      systemd services. SysV configuration data might be overridden by native
      systemd configuration.
 
      If you want to list systemd services use 'systemctl list-unit-files'.
      To see services enabled on particular target use
      'systemctl list-dependencies [target]'.
 
netconsole     	0:off	1:off	2:off	3:off	4:off	5:off	6:off
network        	0:off	1:off	2:on	3:on	4:on	5:on	6:off
redis_init_script_6379	0:off	1:off	2:on	3:on	4:on	5:on	6:off
redis_init_script_6380	0:off	1:off	2:on	3:on	4:on	5:on	6:off
[root@localhost init.d]#

查看开机自启动配置
默认开启runlevel=2345的启动