Is it possible to map Kubernetes service to a specific port for a group of pods (deployement)? E.g. I have service (just as an example)
kind: Service
apiVersion: v1
metadata:
name: my-service
spec:
selector:
app: MyApp
ports:
- protocol: TCP
port: 8081
targetPort: 8081And I want this service be available as http://localhost:8081/ in my pods from some specific deployment.
It seems to me that I saw this in K8S docs several days ago, but I can not find this right now.
It may be beneficial to review your usage of K8s services. If you had exposed a deployment of pods as a service, then your service will define the port mappings, and you will be able to access your service on its cluster DNS name on the service port.
If you must access your service via localhost, I am assuming your use case is some tightly coupled containers in your pod. In which case, you can define a "containerPort" in your deployment yaml, and add the containers that need to communicate with each other on localhost in the same pod.
If by localhost you are referring to your own local development computer, you can do a port-forward. As long as the port-forwarding process is running, you can access the pods' ports from your localhost. Find more on port-forwarding. Simple example:
kubectl port-forward redis-master-765d459796-258hz 6379:6379
# or
kubectl port-forward service/redis 6379:6379 Hope this helps!