The previous article gives the process of manual compilation and installation of redis, and gives the process of online installation of redis when simulating the establishment of redis cluster, so I want to write a redis script for online installation. In this paper, I mainly use shell functions to realize and verify the process of online installation, and I want to share it after it is executed correctly.

PS: the system environment is Centos7.4

The script is as follows:

#!/bin/bash

function  checkroot(){
if [ $UID -ne  0 ]
  then
    echo "|----------------------------------------------------------------------------------------------------------------|"
    echo "|------------------------------------------[Insufficient authority..Please switch to root user]-------------------------------------------|"
    echo "|----------------------------------------------------------------------------------------------------------------|"
    exit;
fi
}

function judge(){
    echo
    off_file=`ls | grep redis-*.tar.gz`
    if [[ "$off_file" = "" ]]
    then
        echo "|----------------------------------------------------------------------------------------------------------------|"
        echo "|-------------------------------------------------[No offline packages found]--------------------------------------------------|"
        echo "|-------------------------------------------------[Start online installation]--------------------------------------------------|"
        /usr/bin/sleep 3
        network
    else
        exit;
    fi
}

function network(){
    yum install cpp binutils glibc-kernheaders glibc-common glibc-devel gcc gcc-c++ make wget  -y  #Install dependency Library
    wget http://download.redis.io/releases/redis-5.0.7.tar.gz
    if [ -f /root/redis-5.0.7.tar.gz ];then
        tar zxvf redis-5.0.7.tar.gz
        mv redis-5.0.7 /usr/local/redis
        cd /usr/local/redis
        make
        cd src/
        make install 
    else
        echo "file does not exist!"
        exit;
    fi

    sed -i '136s/daemonize no/daemonize yes/' /usr/local/redis/redis.conf    #(edit the redis service configuration file and modify its configuration)
    #Set to start the running of Daemons
    sed -i '69s/127.0.0.1/0.0.0.0/' /usr/local/redis/redis.conf 
    #Set to any terminal access
    sed -i '88s/protected-mode yes/protected-mode no/' /usr/local/redis/redis.conf
    #Turn off protected mode
    sed -i '832s/#//' /usr/local/redis/redis.conf
    #The following three lines of regular commands are used in cluster deployment. Do not open them in single installation, or errors will occur
    #Turn on cluster mode
    #sed -i '840s/#//' /usr/local/redis/redis.conf
    #Cluster profile directory
    #sed -i '846s/#//' /usr/local/redis/redis.conf
    #Node timeout
    #sed -i '699s/no/yes/' /usr/local/redis/redis.conf
    #Enable aof persistence
    mkdir -p /etc/redis
    ln -s /usr/local/redis/redis.conf /etc/redis/6379.conf   #(place profile in default profile road strength)
    ln -s /usr/local/redis/utils/redis_init_script /etc/init.d/redisd    #(configure the initialization file to the folder where the system starts. redisd is the service name, which can be modified by yourself.)
    service redisd start   #(enable the redis service. The service name is redisd)
    #redis-cli  
    netstat -ntpl|grep redis
    echo "Redis Deployment complete!"
    echo " "
    echo "If your system is Centos 7 Pay attention to the firewall after installation, and execute the following command to release redis External communication,If not, turn off the firewall and SELinux Function."
    echo "firewall-cmd --zone=public --add-port=6379/tcp --permanent"
    echo "firewall-cmd --reload"
    echo "firewall-cmd --zone=public --query-port=6379/tcp"

}

function main(){
    checkroot
    judge
}

main

Screenshot during installation:

Enter database validation after installation