I'm running a pretty basic cluster in AKS on Azure.
I need to expose a TCP server on port 6879.
I have added the TCP port to the Loadbalancer spec:
kind: Service
metadata:
name: ingress-nginx
selfLink: /api/v1/namespaces/ingress-nginx/services/ingress-nginx
spec:
externalTrafficPolicy: Local
healthCheckNodePort: 32557
ports:
- name: http
nodePort: 30731
port: 80
protocol: TCP
targetPort: http
- name: https
nodePort: 31187
port: 443
protocol: TCP
targetPort: https
- name: tcp
nodePort: 31197
port: 6879
protocol: TCP
targetPort: 6879
selector:
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
sessionAffinity: None
type: LoadBalancerWould this configuration expose port 6879 or 31197 on the public IP?
I'm thinking that I need to add a rule to the Ingress to route that traffic to the TCP server host. But my reading suggests that the Kubernetes Ingress doesn't support routing TCP traffic. What part of the docs am I missing.
TCP\UDP is supported on nginx ingress
apiVersion: v1
kind: ConfigMap
metadata:
name: tcp-services
namespace: ingress-nginx
data:
6879: "default/example-go:8080"
31197: "namespace/service:port"The above example shows how to expose the service example-go running in the namespace default in the port 8080 using the port 9000 (copy paste from the linked article).