Enabling SCTP in Openshift Container Platform 4

Issue

Making use of SCTP protocol such as in the following deployment requires additional steps for it to fully work.

apiVersion: v1
kind: Pod
metadata:
  namespace: sctpdemo
  name: sctpserver
  labels:
    app: sctpserver
spec:
  containers:
    - name: sctpserver
      image: fedora:31
      command: ["/bin/sh", "-c"]
      args:
       ["dnf install -y lksctp-tools && sctp_test -H localhost -P 30100 -l"]
      ports:
        - containerPort: 30100
          name: sctpserver
          protocol: SCTP
---
apiVersion: v1
kind: Service
metadata:
  namespace: sctpdemo
  name: sctpserver
  labels:
    app: sctpserver
spec:
  selector:
    app: sctpserver
  ports:
    - name: sctpserver
      protocol: SCTP
      port: 30100
      targetPort: 30100
  type: ClusterIP

In order to expose SCTP port(s), the protocol field of the relevant port must be set to SCTP.

ports:
   - containerPort: 30100
      name: sctpserver
      protocol: SCTP