#!/bin/bash
<<INFO
AUTHOR:运维@小兵
DATE:2021-07-08
DESCRIBE:Docker方式安装redis
SYSTEM:CentOS7/RedHat7
WARNING:
MODIFY:
INFO

set -e
source /etc/profile                     #避免ansible远程执行shell获取环境变量不一致的问题

WORKDIR=$(cd `dirname $0`;pwd)          #脚本所在路径
echo "Current Excute: bash ${WORKDIR}/$0 $@"

REDIS_PORT="6379"
REDIS_CONTAINER_NAME="redis"
HARBOR_USER="admin"
HARBOR_PWD="12345"
HARBOR_IP="192.168.1.2"
IMAGE_ADDR="${HARBOR_IP}/redis:6.0"

#环境检查
Check_Env(){
    echo "INFO:Begin Check Env..."
    local pid=$(lsof -i:${REDIS_PORT} -t)
    if ss -nutlp | grep -w ':${REDIS_PORT}\b' &> /dev/null;then
        echo "ERROR:${REDIS_PORT} Is Used" && exit 1
    fi
    if ! command -v docker &> /dev/null;then
        echo "ERROR:Please Install Docker" && exit 1
    fi
}

#配置docker信任
Config_Docker(){
    if ! docker info | grep -w "${HARBOR_IP}" &> /dev/null;then
        [[ ! -f /etc/docker/daemon.json.bak ]] && cp /etc/docker/daemon.json{,.bak}
        tee /etc/docker/daemon.json << EOF
{
    "registry-mirrors":["https://7bezldxe.mirror.aliyuncs.com/"],
    "log-driver":"json-file","log-opts":{"max-size":"5m"},
    "storage-driver":"overlay2",
    "storage-opts":["overlay2.override_kernel_check=true"],
    "insecure-registries": ["${HARBOR_IP}","${HARBOR_IP}:80"]
}
EOF
    systemctl restart docker
    docker info | grep -w "${HARBOR_IP}"
    fi
}

#拉取镜像
Pull_Image(){
    echo "INFO:Begin Pull Image ${IMAGE_ADDR}..."
    Config_Docker
    docker login -u ${HARBOR_USER} -p ${HARBOR_PWD} ${HARBOR_IP}
    docker pull ${IMAGE_ADDR}
}

#安装redis容器
Install_Redis(){
    Check_Env
    Pull_Image
    echo "INFO:Begin Create Redis Container..."
    docker run -d --name=${REDIS_CONTAINER_NAME} --restart unless-stopped \
    -p ${REDIS_PORT}:6379 ${IMAGE_ADDR}
    
    sleep 2
    if ss -nutlp | grep -w ":${REDIS_PORT}\b" &> /dev/null;then
        echo "INFO:${REDIS_CONTAINER_NAME} Container Create Success"
    else
        echo "ERROR:${REDIS_CONTAINER_NAME} Container Create Fail" && exit 1
    fi
}

#卸载REDIS
Uninstall_Redis(){
    if docker ps -a | egrep -w "\b${REDIS_CONTAINER_NAME}$" &> /dev/null;then
        docker rm -f ${REDIS_CONTAINER_NAME}
        echo "INFO:${REDIS_CONTAINER_NAME} Container uninstall Success" && exit 0
    else
        echo "WARN:${REDIS_CONTAINER_NAME} Container Is Without" && exit 0
    fi
}

######################主程序######################
[[ $# -ne 1 ]] && echo "ERROR:Invalid Param!!! eg:bash $0 (install|uninstall)" && exit 1
case $1 in
install)
    Install_Redis;;
uninstall)
    Uninstall_Redis;;
*)
    echo "ERROR:Invalid Param!!! eg:bash $0 install or uninstall" && exit 1
esac