Kubernetes on Spinnaker - Interservice communication - kubernetes

Question

I have a sample application running on a Kubernetes cluster. Two microservices, one is a mongodb container and the other is a java springboot container.
The springboot container interacts with the mongodb container thro a service and stores data into the mongodb container.
The specs are provided below.
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: empappdepl
labels:
name: empapp
spec:
replicas: 1
template:
metadata:
labels:
name: empapp
spec:
containers:
-
resources:
limits:
cpu: 0.5
image: 11.168.xx.xx:5000/employee:latest
imagePullPolicy: IfNotPresent
name: wsemp
ports:
- containerPort: 8080
name: wsemp
command: ["java","-Dspring.data.mongodb.uri=mongodb://mongoservice/microservices", "-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]
imagePullSecrets:
- name: myregistrykey
---
apiVersion: v1
kind: Service
metadata:
labels:
name: empwhatever
name: empservice
spec:
ports:
- port: 8080
nodePort: 30062
type: NodePort
selector:
name: empapp
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: mongodbdepl
labels:
name: mongodb
spec:
replicas: 1
template:
metadata:
labels:
name: mongodb
spec:
containers:
- resources:
limits:
cpu: 1
image: mongo
imagePullPolicy: IfNotPresent
name: mongodb
ports:
- containerPort: 27017
---
apiVersion: v1
kind: Service
metadata:
labels:
name: mongowhatever
name: mongoservice
spec:
ports:
- port: 27017
targetPort: 27017
protocol: TCP
type: NodePort
selector:
name: mongodb
I would like to know how this communication can be accomplished in spinnaker since it creates its own labels and selectors.
Thanks,

Answer 1

This is how it needs to be done.
Each loadbalancer created for the application is the service. So for mongodb application, after a loadbalancer is created with the nodeport settings, get the name of the service eg: mongodb-dev. The server group for mongodb also needs to be created.
Then when creating the employee server group, you need to specify the commands one by one in a separate line for that container as mentioned here
https://github.com/spinnaker/spinnaker/issues/2021#issuecomment-334885467
"java","-Dspring.data.mongodb.uri=mongodb://name-of-mongodb-service/microservices", "-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"
Now when the employee and mongodb pod starts, it is able to get its mapping and able to communicate properly.