Merge pull request #3996 from dprotaso/websocket-protocol

KEP-3726: Add WebSocket as a standard protocol

Author: k8s-ci-robot

keps/sig-network/3726-standard-application-protocols/README.md

@@ -144,6 +144,8 @@ Those common protocols will be well defined strings prefixed with ‘kubernetes.
 
 ### New Standard Protocols
 - 'kubernetes.io/h2c'
+- 'kubernetes.io/ws'
+- 'kubernetes.io/wss'
 
 ### Risks and Mitigations
 
@@ -176,6 +178,8 @@ type ServicePort struct {
   //
   // * Kubernetes-defined prefixed names:
   //   * 'kubernetes.io/h2c' - HTTP/2 over cleartext as described in https://www.rfc-editor.org/rfc/rfc7540
+  //   * 'kubernetes.io/ws'  - WebSocket over cleartext as described in https://www.rfc-editor.org/rfc/rfc6455
+  //   * 'kubernetes.io/wss' - WebSocket over TLS as described in https://www.rfc-editor.org/rfc/rfc6455
   //
   // * Other protocols should use implementation-defined prefixed names such as
   // mycompany.com/my-custom-protocol.