[Feature Request]: Cluster Admin HTTP APIs - part2

[vsian]

Is there an existing issue for the same feature request?

• I have checked the existing issues.

Is your feature request related to a problem?

No response

Describe the feature you'd like

Support following HTTP APIs:

Set node role:

curl --request POST \
     --url http://localhost:23820/admin/node/current \
     --header 'accept: application/json' \
     --header 'content-type: application/json' \
     --data ' 
     {
            "role" : "leader"
     } '

List node variables:

curl --request GET \
     --url http://localhost:23820/admin/variables \
     --header 'accept: application/json' \

List node configs:

curl --request GET \
     --url http://localhost:23820/admin/configs \
     --header 'accept: application/json' \

Show node variable by name:

curl --request GET \
     --url http://localhost:23820/admin/variables/{var_name} \
     --header 'accept: application/json' \

Describe implementation you've considered

No response

Documentation, adoption, use case

No response

Additional information

No response