# CentOS7安装Mongodb

# 下载并解压

curl -O https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-4.0.4.tgz
tar -zxvf mongodb-linux-x86_64-4.0.4.tgz

# 创建mongodb相关目录

cd /opt/
mkdir -p mongodb/{data/db,log}
mv /root/mongodb-linux-x86_64-4.0.4 /opt/mongodb/
mv /opt/mongodb/mongodb-linux-x86_64-4.0.4/* /opt/mongodb/
rm -rf mongodb-linux-x86_64-4.0.4/

# 创建mongodb配置文件

cd /opt/mongodb/
mkdir conf
cd conf
vim mgdb.conf

# 配置文件内容

dbpath=/opt/mongodb/data/db  #数据文件存放目录
logpath=/opt/mongodb/log/mongodb.log  #日志文件存放目录
port=27017  #端口，默认27017，可以自定义
logappend=true  #开启日志追加添加日志
fork=true  #以守护程序的方式启用，即在后台运行
bind_ip=0.0.0.0  #本地监听IP，0.0.0.0表示本地所有IP
auth=false  #是否需要验证权限登录(用户名和密码)

# 添加环境变量

vim /etc/profile

export MONGODB_HOME=/opt/mongodb
export PATH=$PATH:$MONGODB_HOME/bin

source /etc/profile

# 创建Mongodb开机启动配置文件

vim /lib/systemd/system/mongodb.service

# 启动文件内容

[Unit]
Description=mongodb
After=network.target remote-fs.target nss-lookup.target

[Service]
Type=forking
RuntimeDirectory=mongodb
PIDFile=/opt/mongodb/data/db/mongod.lock
ExecStart=/opt/mongodb/bin/mongod --config /opt/mongodb/conf/mgdb.conf
ExecStop=/opt/mongodb/bin/mongod --shutdown --config /opt/mongodb/conf/mgdb.conf
PrivateTmp=true

[Install]  
WantedBy=multi-user.target

# 启动mongodb并加入开机启动

systemctl daemon-reload
systemctl start mongodb
systemctl stop mongodb
systemctl enable mongodb

# 检验是否启动

ps -ef | grep mongodb

# 创建mongodb管理用户

mongo --port 27017

use admin
db.createUser({user:"tiankafei",pwd:"tiankafei",roles:[{role:"userAdminAnyDatabase",db: "admin"}]})
db.auth('tiankafei','tiankafei')

# 创建测试用户

mongo --port 27017

use test
db.createUser({user:"test",pwd:"tiankafei",roles:[{role:"readWrite",db:"securitydata"}]})
db.auth('test','tiankafei')

# 测试用户登录

mongo --port 27017 -u test -p tiankafei

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