Apache Ranger allows contributions via pull requests (PRs) on GitHub.
Alternatively, use this to submit changes for review using the Review Board.
Also create a ranger jira to go along with the review and mention it in the review board review.
Ranger is built using Apache Maven. To run Ranger:
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Check out the code from GIT repository 
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Ensure that docker & docker-compose is installed and running on your system. 
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Ensure that JDK 1.8+ is installed on your system. 
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Ensure that Apache Maven is installed on your system. 
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Run the following command to build & run Ranger from Docker ./ranger_in_docker up
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After successful completion of the above command, you should be able to view Ranger Admin Console by using URL: http://<hostname-of-system>:6080/ UserName: admin Password: rangerR0cks!
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Check out the code from GIT repository 
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On the root folder, please execute the following Maven command: mvn clean installmvn eclipse:eclipse
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After the above build command execution, you should see the following TAR files in the target folder: ranger-<version>-admin.tar.gz ranger-<version>-atlas-plugin.tar.gz ranger-<version>-hbase-plugin.tar.gz ranger-<version>-hdfs-plugin.tar.gz ranger-<version>-hive-plugin.tar.gz ranger-<version>-kafka-plugin.tar.gz ranger-<version>-kms.tar.gz ranger-<version>-knox-plugin.tar.gz ranger-<version>-migration-util.tar.gz ranger-<version>-ranger-tools.tar.gz ranger-<version>-solr-plugin.tar.gz ranger-<version>-sqoop-plugin.tar.gz ranger-<version>-src.tar.gz ranger-<version>-storm-plugin.tar.gz ranger-<version>-tagsync.tar.gz ranger-<version>-usersync.tar.gz ranger-<version>-yarn-plugin.tar.gz ranger-<version>-kylin-plugin.tar.gz ranger-<version>-elasticsearch-plugin.tar.gz
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Create an Eclipse workspace called 'ranger' 
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Import maven project from the root directory where ranger source code is downloaded (and build) 
- Ranger Admin Tool Component (ranger--admin.tar.gz) should be installed on a host where Policy Admin Tool web application runs on port 6080 (default).
- Ranger User Synchronization Component (ranger--usersync.tar.gz) should be installed on a host to synchronize the external user/group information into Ranger database via Ranger Admin Tool.
- Ranger Component plugin should be installed on the component boxes:
- HDFS Plugin needs to be installed on Name Node hosts.
- Hive Plugin needs to be installed on HiveServer2 hosts.
- HBase Plugin needs to be installed on both Master and Regional Server nodes.
- Knox Plugin needs to be installed on Knox gateway host.
- Storm Plugin needs to be installed on Storm hosts.
- Kafka/Solr Plugin needs to be installed on their respective component hosts.
- YARN plugin needs to be installed on YARN Resource Manager hosts.
- Sqoop plugin needs to be installed on Sqoop2 hosts.
- Kylin plugin needs to be installed on Kylin hosts.
- Elasticsearch plugin needs to be installed on Elasticsearch hosts.
 
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Download the tar.gz file into a temporary folder in the box where it needs to be installed. 
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Expand the tar.gz file into /usr/lib/ranger/ folder 
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Go to the component name under the expanded folder (e.g. /usr/lib/ranger/ranger--admin/) 
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Modify the install.properties file with appropriate variables 
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- If the module has setup.sh, execute ./setup.sh
- If the install.sh file does not exists, execute ./enable--plugin.sh