How to install keyring_aws plugin in MySQL?
Unfortunately, the keyring_aws plugin is only available on the Enterprise edition (not available on the community edition).

For community edition, the only encryption method available for tablespace encryption is the standard keyring (keyring_file.so)

To load the plugin, use the --early-plugin-load option to name the plugin library file that contains it. For example, on platforms where the plugin library file suffix is .so, use these lines in the server my.cnf file (adjust the .so suffix for your platform as necessary):

[mysqld]
early-plugin-load=keyring_file.so


If you need the AWS plugin and can't pay for enterprise edition your best option could be MariaDB:
https://mariadb.com/kb/en/library/aws-key-management-encryption-plugin/