---
prelude: >
    Remove 'router_id' configuration option from the
    l3_agent.ini file. 'router_id' option has been defined
    in order to associate an l3-agent to a specific router
    when use_namespaces=False. It was deprecated after
    use_namespaces was removed in Mitaka release.
upgrade:
  - Remove 'router_id' configuration option from the
    l3_agent.ini file.