How to change the number of Replicas
To change the number of replicas of a service you need to edit the file in the advanced Section: core-services.json.
and add the key replicas and value the number of replica.
For example, to configure auth service with 5 replicas, the configuration to be provided is as follows:
"auth-service": {
"type": "core",
"name": "auth-service",
"key": "auth-service",
"replicas": 5
}