Centos7.9 docker-compose安装mongo-replset集群

安装并启动docker

curl -sSL curl -fsSL https://get.docker.com | sh

systemctl start docker

安装docker-compose

curl -SL https://github.com/docker/compose/releases/download/v2.34.0/docker-compose-linux-x86_64 -o /usr/local/bin/docker-compose

chmod +x /usr/local/bin/docker-compose

注

以下操作master执行

下载yaml文件

wget https://www.ikun.blog/downloads/mongo/mongo-master.yaml --no-check-certificate

创建文件夹并给予权限

mkdir -p /downloads/mongo/arbiter/
mkdir /downloads/mongo/master/
chmod 777 -R /downloads/mongo/arbiter/
chmod 777 -R /downloads/mongo/master/

docker-compose创建容器

docker-compose -f mongo-master.yaml up -d

注

以下操作在slave1节点操作

下载yaml文件

wget https://www.ikun.blog/downloads/mongo/mongo-slave-1.yaml --no-check-certificate

创建文件夹并给予权限

mkdir -p /downloads/mongo/arbiter/
mkdir /downloads/mongo/secondary/
chmod 777 -R /downloads/mongo/arbiter/
chmod 777 -R /downloads/mongo/secondary/

docker-compose创建容器

docker-compose -f mongo-slave-1.yaml up -d

注

以下操作在slave2节点操作

下载yaml文件

wget https://www.ikun.blog/downloads/mongo/mongo-slave-2.yaml --no-check-certificate

创建文件夹并给予权限

mkdir -p /downloads/mongo/arbiter/
mkdir /downloads/mongo/secondary/
chmod 777 -R /downloads/mongo/arbiter/
chmod 777 -R /downloads/mongo/secondary/

docker-compose创建容器

docker-compose -f mongo-slave-2.yaml up -d

注

进入主节点执行操作

docker exec -it mongo-master /bin/bash

初始化mongo-replset

rs.initiate({ _id:"ChairSet", members:[{_id:0,host:"192.168.6.96:27017"},{_id:1,host:"192.168.6.168:27017"},{_id:2,host:"192.168.7.11:27017"}]})

进入mongo admin库创建user

mongo

> use admin

> db.createUser({user: "root",pwd: "xxx",roles: [ { role: "root", db: "admin" } ]})

> db.createUser({user: "admin",pwd: "xxx",roles: [ { role: "userAdminAnyDatabase", db: "admin" } ]})

切换到xxx库创建user

> use xxx

> db.createUser({user: "xxx",pwd: "xxx",roles: [ { role: "readWrite", db: "touty" }]})

在xxx库测试用户

相关信息

返回1代表成功

> use xxx

> db.auth("xxx","xxxxxx")

创建key文件

openssl rand -base64 756 > mongo.key

chmod 600 mongo.key

注

把这个key文件放到另外两台服务器上

修改compose文件

vim mongo-master.yaml

mongo-master:
 image: docker.touty.io/library/mongo:latest
 container_name: mongo-master
 restart: always
 ports:
 - 27017:27017
 volumes:
 - /downloads/mongo/master/:/downloads/db/
 - /opt/mongo/dumpdb/:/opt/mongo/dumpdb/
 command: mongod --dbpath /downloads/db --replSet ChairSet --oplogSize 128 --keyFile /downloads/db/mongo.key
mongo-arbiter:
 image: docker.touty.io/library/mongo:latest
 container_name: mongo-arbiter
 restart: always
 ports:
 - 27018:27017
 volumes:
 - /downloads/mongo/arbiter/:/downloads/db/
 - /opt/mongo/dumpdb/:/opt/mongo/dumpdb/
 command: mongod --dbpath /downloads/db --replSet ChairSet --oplogSize 128 --keyFile downloads/db/mongo.key

vim mongo-slave-1.yaml

mongo-master:
 image: docker.touty.io/library/mongo:latest
 container_name: mongo-slave1
 restart: always
 ports:
 - 27017:27017
 volumes:
 - /downloads/mongo/master/:/downloads/db/
 - /opt/mongo/dumpdb/:/opt/mongo/dumpdb/
 command: mongod --dbpath /downloads/db --replSet ChairSet --oplogSize 128 --keyFile /downloads/db/mongo.key
mongo-arbiter:
 image: docker.touty.io/library/mongo:latest
 container_name: mongo-arbiter
 restart: always
 ports:
 - 27018:27017
 volumes:
 - /downloads/mongo/arbiter/:/downloads/db/
 - /opt/mongo/dumpdb/:/opt/mongo/dumpdb/
 command: mongod --dbpath /downloads/db --replSet ChairSet --oplogSize 128 --keyFile downloads/db/mongo.key

vim mongo-slave-2.yaml

mongo-slave-2:
 image: docker.touty.io/library/mongo:latest
 container_name: mongo-slave2
 restart: always
 ports:
 - 27017:27017
 volumes:
 - /downloads/mongo/master/:/downloads/db/
 - /opt/mongo/dumpdb/:/opt/mongo/dumpdb/
 command: mongod --dbpath /downloads/db --replSet ChairSet --oplogSize 128 --keyFile /downloads/db/mongo.key
mongo-arbiter:
 image: docker.touty.io/library/mongo:latest
 container_name: mongo-arbiter
 restart: always
 ports:
 - 27018:27017
 volumes:
 - /downloads/mongo/arbiter/:/downloads/db/
 - /opt/mongo/dumpdb/:/opt/mongo/dumpdb/
 command: mongod --dbpath /downloads/db --replSet ChairSet --oplogSize 128 --keyFile downloads/db/mongo.key

docker-compose重新创建容器

Master:
docker-compose -f mongo-master.yaml up -d
Slave-1:
docker-compose -f mongo-slave-1.yaml up -d
Slave-2:
docker-compose -f mongo-slave-2.yaml up -d

使用mongodump备份库

直接执行命令

mongodump -h 127.0.0.1 --port 27017 -u xxx -p xxxx --authenticationDatabase xxx -d xxx -o /opt/mongo/dumpdb/

提示

-h：指定Mongo地址 --port：指定端口号 -u：指定库用户名 -p：指定库密码 --authenticationDatabase：指定验证库 -d：指定库 -o：指定文件输出位置

使用文件恢复

mongorestore -h xxx -u xxx -p xxx --port xxx --authenticationDatabase xxx -d xxx /opt/mongo/dumpdb/xxx/

Mongo3.x常用命令

切换数据库

use xxx;

User认证

db.auth("username","password")

查看所有索引

db.getCollectionNames().forEach(function(collection){     indexes = db[collection].getIndexes();     print("Indexes for " + collection + ":" );     printjson(indexes); });