Mysql Proxy Added Ssl Termination Support To The

Added SSL termination support to the MySQL proxy filter with RSA-mediated caching_sha2_password authentication. The filter can now terminate downstream TLS connections using the :ref:starttls transport socket <envoy_v3_api_msg_extensions.transport_sockets.starttls.v3.StartTlsConfig> and transparently mediate MySQL 8.0+ caching_sha2_password full authentication by performing RSA public key exchange on behalf of the client. Added a new :ref:downstream_ssl <envoy_v3_api_field_extensions.filters.network.mysql_proxy.v3.MySQLProxy.downstream_ssl> config option with DISABLE, REQUIRE, and ALLOW modes.