I am creating a MongoDB cluster on Kubernetes using Stateful sets. I have 3 mongo replicas configured in my Stateful set.

Now I create Stateful set and service using just one command

kubectl create -f mongo-stateful.yaml

Then I use the mongo client to initiate mongo replica set members.

rs.initiate(
   {
      _id: "replicaset1",
      version: 1,
      members: [
         { _id: 0, host:port1 },
         { _id: 1, host : host:port1 },
         { _id: 2, host : host:port1  }
      ]
   }
)

All of this works except I would like to automate this step of configuring replica set members.

My questions is whether this step can be automated and if we can add this to the yaml file?