Please read the post from earlier to learn how to set up a MySQL community server and client on EC2, which serves as a bridge to connect to AWS RDS.
The following error was encountered by many of us during installation.
The GPG keys listed for the “MySQL 8.0 Community Server” repository are already installed but they are not correct for this package.
Check that the correct key URLs are configured for this repository.
Failing package is: mysql-community-client-8.0.28-1.el7.x86_64
GPG Keys are configured as: file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
Run the following to import the GPG keys.
[ec99-root@ip-99-9-9-991 ~]$ rpm –import https://repo.mysql.com/RPM-GPG-KEY-mysql-2022
And now, run the below to Install MySQL Community Server
[ec99-root@ip-99-9-9-991 ~]$ yum –enablerepo=mysql80-community install mysql-community-server
Hope you find this article helpful.