Description of problem: When Director deployed with DVR, tempest configuration (deployer input) should include the following configuration: neutron_plugin_options.l3_agent_mode='dvr_snat' In order for relevant DVR tests in neutron tempest plugin to run. I believe it doesn't make sense for CI systems to manually insert it. Version-Release number of selected component (if applicable): any release that supports DVR
While we could add a single additional line for this configuration setting, the bug report suggests the need for a generalized mechanism for mapping the values of heat environment variables to tempest-deployer-input.conf.
Let's reopen this as a RFE as it needs a more complex mechanism than just adding it to the config.