Is there a way to add additional configurable settings in OpsCenter 6.0.2 Lifecycle Manager config profiles? - opscenter

Question

I would really like to add the following settings to our spark-defaults.conf using OpsCenter 6.0.2 in order to avoid configuration drift. Is there a way to add these config items to the config profile template?
spark.cores.max 4
spark.driver.memory 2g
spark.executor.memory 4g
spark.python.worker.memory 2g

Answer 1

NOTE: As Mike Lococo has pointed out in the comments for this answer -- this answer may work to update the config profile values but will not result in those values being written to spark-defaults.conf.
The following is not a solution!
You can; you have to update the config profile via the LCM Config Profile API (https://docs.datastax.com/en/opscenter/6.0/api/docs/lcm_config_profile.html#lcm-config-profile).
First, identify the config profile that needs updating:
$ curl http://localhost:8888/api/v1/lcm/config_profiles
Get the href for the specific config profile that needs updating, request it, and save the response body to a file:
$ curl http://localhost:8888/api/v1/lcm/config_profiles/026fe8e3-0bb8-49c1-9888-8187b1624375 > profile.json
Now, in the profile.json file you just saved to, you add or edit the key at json > spark-defaults-conf to include the following keys:
"spark-defaults-conf": {
"spark-cores-max": 4,
"spark-python-worker-memory": "2g",
"spark-ssl-enabled": false,
"spark-drivers-memory": "2g",
"spark-executor-memory": "4g"
}
Save the updated profile.json. Finally, execute an HTTP PUT to the same config profile URL, using the edited file as the request data:
$ curl -X PUT http://localhost:8888/api/v1/lcm/config_profiles/026fe8e3-0bb8-49c1-9888-8187b1624375 -d #profile.json