configurable SSMMessages endpoint #122
Description
Would it be at all possible to use the session-manager plugin with a custom VPC endpoint for SSMMessages?
The way I understand the behavior is that the endpoint address is given as StreamUrl by the SSM:StartSession API call, which in my case is unfortunate. I am in a corporate network and DNS requests to amazonaws.com addresses are resolved publicly to global endpoints. I can reach our private endpoints, but only via more explicit hostnames (e.g. vpce-123456789abcdef.ssm.eu-central-1.vpce.amazonaws.com. I can configure aws cli to use these for STS and SSM, but not for SSM Messages. And since SSM:StartSession returns wss://ssmmessages.eu-central-1.amazonaws.com I am forced to use the global endpoint (which in my case I can't).
Would it be possible to configuration option to override the default StreamUrl in the session-manager-plugin? Or must it be always the StreamUrl returned by SSM:StartSession ?