I'm trying to use Spring Gateway to route requests to some Spring Boot pods exposing REST APIs.

I have a search service deployed like this:

apiVersion: apps/v1
kind: Deployment
metadata:
  creationTimestamp: null
  labels:
    app: search
  name: search
spec:
  replicas: 1
  selector:
    matchLabels:
      app: search
  strategy:
    type: Recreate
  template:
    metadata:
      creationTimestamp: null
      labels:
        app: search
    spec:
      containers:
      - image: <ommited>
        name: search-service
        imagePullPolicy: Always
        resources: {}
      imagePullSecrets:
        - name: <ommited>
status: {}
---
apiVersion: v1
kind: Service
metadata:
  creationTimestamp: null
  labels:
    app: search
  name: search
spec:
  ports:
  - name: stage
    port: 8080
    protocol: TCP
  selector:
    app: search
  type: ClusterIP

It deploys fine and is accessible if I use an ngnix ingress deployment. I want to use Spring Gateway as an entry point however so I deploy it in another pod like so:

<ommiting deployment>
---
apiVersion: v1
kind: Service
metadata:
  creationTimestamp: null
  labels:
    app: gateway
  name: gateway
spec:
  ports:
  - name: stage
    port: 8080
    protocol: TCP
    targetPort: 8080
  selector:
    app: gateway
  type: LoadBalancer

With a defined route:

.route("search", r -> r.path("/search")
                        .uri("http://search:8080/search"))

It also deploys fine and is accessible externally.

When the gateway pod tries to route the request to the search pod however it gets an explicit "connection refused".

{
  "timestamp": "...",
  "path": "/search",
  "status": 500,
  "error": "Internal Server Error",
  "message": "finishConnect(..) failed: Connection refused: search/10.100.130.149:8080",
  "requestId": "a3af8165-1"
}

Hostname is resolved properly.

Also tried with connecting from gateway to search nc:

kubectl exec -it gateway-7798cb658-ffzvb -- nc -z search 8080
command terminated with exit code 1

Again host is properly resolved, so expect I have misconfigured ports somewhere. I have verified that the search Spring Boot app listens on 8080 and 8080 is exposed via the docker container and the search pod.

Any help appreciated, thanks!