AnnotationBackendProtocol is the annotation key for proxy-backend-protocol, default "http".

AnnotationBackendProtocol is the annotation key for Timeout for establishing a new TCP connection to your origin server.

AnnotationProxySSLVerify is the annotation key for proxy-ssl-verify, available values: "on" or "off", default "off".

AnnotationTCPKeepAliveConnections is the annotation key for Maximum number of idle keepalive connections between Tunnel and your origin.

AnnotationTCPKeepAliveTimeout is the annotation key for the timeout after which a TCP keepalive packet is sent on a connection between Tunnel and the origin server.