Support for different resource request / limit for arbiters

[radsto]

What did you expect?
In the statefulset configuration, we can set CPU & RAM requests and limits per container which are then merged into the created pods.

I was expecting in the case of using Guaranteed QoS (requests = limits) :

• to be able to set specific (lower resources) for arbiters which are supposed to be very lightweight

I looked in the source but can't find wether it is supported or not.

Could you please help me ?

What happened instead?
Same limits / requests are applied to all pods no matter if they are arbiters or replica / secondary nodes.

Screenshots
Real usage :

Pod Specs :

"mongo-prod-hds-0"
"mongod"
"mongodb-agent"
{
  "limits": {
    "cpu": "2",
    "memory": "2Gi"
  },
  "requests": {
    "cpu": "500m",
    "memory": "2Gi"
  }
}
{
  "limits": {
    "cpu": "1",
    "memory": "384Mi"
  },
  "requests": {
    "cpu": "250m",
    "memory": "384Mi"
  }
}
"mongo-prod-hds-arb-0"
"mongod"
"mongodb-agent"
{
  "limits": {
    "cpu": "2",
    "memory": "2Gi"
  },
  "requests": {
    "cpu": "500m",
    "memory": "2Gi"
  }
}
{
  "limits": {
    "cpu": "1",
    "memory": "384Mi"
  },
  "requests": {
    "cpu": "250m",
    "memory": "384Mi"
  }
}
"mongo-prod-hds-1"
"mongod"
"mongodb-agent"
{
  "limits": {
    "cpu": "2",
    "memory": "2Gi"
  },
  "requests": {
    "cpu": "500m",
    "memory": "2Gi"
  }
}
{
  "limits": {
    "cpu": "1",
    "memory": "384Mi"
  },
  "requests": {
    "cpu": "250m",
    "memory": "384Mi"
  }
}

[irajdeep]

Hi @radsto - this is a known issue #962 - currently we don't have any plans to address this. However we welcome contribution from community to add this feature.

I am going to close this as duplicate of #962