Cloudera Manager UI - External User Mappings API

curl -g -X GET -u admin:admin -H "Content-Type: application/json" "http://cmhost:7180/api/v43/authRoles" > cm_authroles.json

Download the existing authroles from the CM UI and validate if the CM roles are mentioned in target state available in the file cm_authroles.json

Step 2: Create the user mapping template example shown below  cm_user_mapping.json

{
  "items": [
    {
      "name": "CMGroup1",
      "type": "LDAP",
      "authRoles": [
        { "name": "ROLE_ADMIN" }
      ]
    },
    {
	"name": "CMGroup2",	
      "type": "LDAP",
      "authRoles": [
        { "name": "ROLE_CONFIGURATOR" }
      ]
    },
    {
	"name": "CMGroup3",
      "type": "LDAP",
      "authRoles": [
        { "name": "ROLE_AUDITOR" },
        { "name": "ROLE_LIMITED" }
      ]
    }
  ]
}

 Step 3: Post the cm_user_mapping.json to the CM via externalUserMappings api

curl -g -X POST -u admin:admin -H "Content-Type: application/json" -d _user_mapping.json "http://cmhost:7180/api/v43/externalUserMappings"

More details about the mapping and authroles and user mapping can be found in official documentation 

https://archive.cloudera.com/cm7/7.2.4/generic/jar/cm_api/apidocs/index.html