1、仅安装MySQL客户端

# 添加rpm源
[root@k8s-master ~]# rpm -ivh https://repo.mysql.com//mysql57-community-release-el7-11.noarch.rpm
[root@test1 ~]#
# 通过yum搜索
[root@test1 ~]# yum search mysql-community
[root@test1 ~]#
# 安装x64位的 mysql客户端
[root@test1 ~]# yum install mysql-community-client.x86_64

2、仅安装MongoDB客户端

下载相关版本mongodb客户端 client
linux上选择rpm

rpm 安装客户端

apt-get install rpm -y
rpm -ivh https://repo.mongodb.org/yum/amazon/2013.03/mongodb-org/4.0/x86_64/RPMS/mongodb-org-shell-4.0.25-1.amzn1.x86_64.rpm --nodeps --force

测试连接

mongo --port 22222 --host 10.0.0.0  --authenticationDatabase "admin" -u "root" -p "password"

报错处理

1、

Failing package is: mysql-community-common-5.7.38-1.el7.i686
 GPG Keys are configured as: file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

解决
出现上述提示原因是Mysql的GPG升级了，需要重新获取

sudo rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2022

再次安装即可