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Ranger ships with the following two condition evaluators: RangerIpMatcher and RangerTimeOfDayMatcher. The former is used by the standard Knox plugin.

Appendix

Purpose	To find out the id of the HDFS service so that it can be used in get and put calls
REST Call	curl --user admin:admin --get "http://node-1:6080/service/public/v2/api/servicedef/name/hdfs"
JSON response	See below
Points to Note	id of the service-def is 1. Both the contextEnrichers and conditionEvaluator collections are empty

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"enums": [ ... detailed elided for ease of readability ... ]

}

Purpose	Update the contextEnrichers collection on the HDFS service-definition via PUT.
REST Call	curl --user admin:admin --put "http://node-1:6080/service/public/v2/api/servicedef/name/hdfs"
JSON payload	Edit the response received from the previous step and modify the policy conditions section as indicated below.
JSON response	per the semantics of PUT the response should be semantically similar to the JSON payload. The update times might differ.
Points to Note	Context enricher attribute is an array so that multiple context enrichers can be specified, if needed, which would be invoked in order.

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