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一/下载安装包

链接：https://pan.baidu.com/s/1ACX8xADUDLvBoEY2utUEWQ 
提取码：r1qm

二/编写脚本

#cat mongodb_4_2_install.sh
#!/bin/bash
# -------------------------------------------------------------------------------
# Filename:    安装mongodb_4_2_11
# Revision:    1.2.9
# Author 		
# Description: 解压安装
# Notes:       Rocky Linux 9/CentOS Stream 9
# --------------------------------------------------------------------------------
mongodb_4_2_install(){
if ! type mongo > /dev/null 2>&1 ;then
    yum -y install openssl
	rpm -ivh compat-openssl10-1.0.2o-3.el8.x86_64.rpm 
	tar zxvf mongodb*.tgz -C /usr/local/
	mv /usr/local/mongodb*  /usr/local/mongodb
	echo "PATH=$PATH:/usr/local/mongodb/bin" >> /etc/profile
	source /etc/profile
	mkdir -p /data/mongodb/{data,log}
	touch /usr/local/mongodb/mongodb.conf
cat > /usr/local/mongodb/mongodb.conf <<EOF
dbpath=/data/mongodb/data
logpath=/data/mongodb/log/mongodb.log
journal=true
fork=true
bind_ip=0.0.0.0
port=27017
maxConns= 5000
slowms=1000
logappend = true
EOF

cat > /etc/systemd/system/mongod.service << EOF
[Unit]
Description=mongod
After=network.target

[Service]
User=root
Group=root
ExecStart=/usr/local/mongodb/bin/mongod --config /usr/local/mongodb/mongodb.conf
ExecStop=/usr/local/mongodb/bin/mongod --shutdown --config /usr/local/mongodb/mongodb.conf
Restart=always
Type=forking

[Install]
WantedBy=multi-user.target

EOF

    chmod +x /etc/systemd/system/mongod.service 
	sudo systemctl daemon-reload  && sudo systemctl enable mongod.service && sudo systemctl start mongod.service
	ps -ef |grep "mongodb"
	MONGODB=$(netstat -tlnup |grep mongod |wc -l)
	if [ $MONGODB = "1" ];then
sudo /usr/local/mongodb/bin/mongo  -host 127.0.0.1 -port 27017 <<EOF

use admin;
db.createUser({user:"root",pwd:"1234567890",roles:[{role:"userAdminAnyDatabase",db:"admin"}]});
show users;

EOF
	fi

	sudo systemctl daemon-reload  && sudo systemctl enable mongod.service && sudo systemctl restart mongod.service
		ps -ef |grep "mongodb"
		local port_mongodb=`netstat -tlunp |grep "mongod"|awk '{print $4}'|awk -F ":" '{print $2}'`
		if [ $port_mongodb = "27017" ];then
			echo "mongodb启动成功！"
		else
			echo "mongodb启动失败，请查找日志！"
		fi
else
	echo "安装mongodb已经安装了,如果需要重装请先把原来mongodb删除，再进行安装"
	echo -e "\n"
fi

mongodb_4_2_install

3/登录

默认无密码登录
用户：root
密码：1234567890

如有疏漏不妥之处,还请不吝赐教