Removing default node roles

Elastic Stack Elasticsearch
1

when I display the setting for one of my nodes I get:

  "nodes": {
    "kAWPcpoxSNSN9WlUsYlQlg": {
      "timestamp": 1614190995674,
      "name": "secesprd01",
      "transport_address": "10.6.0.67:9300",
      "host": "10.6.0.67",
      "ip": "10.6.0.67:9300",
      "roles": [
        "data",
        "data_cold",
        "data_content",
        "data_hot",
        "data_warm",
        "ingest",
        "master",
        "ml",
        "remote_cluster_client",
        "transform"
      ],
      "attributes": {
        "ml.machine_memory": "67510460416",
        "node_type": "hot",
        "xpack.installed": "true",
        "transform.node": "true",
        "ml.max_open_jobs": "20"
      },

and we see a list of roles which I did not set explicitly -- I assume these are defaults.

I want to remove the some of the roles but it is not clear how to do this from the docs.

Do I have to enumerate all the roles I want in node.roles?

If I put master into the node.roles is the node.master setting redundant?

2

If you want specific roles only, yes.

Yes.