---
features:
  - |
    Adds variables to define extra command-line parameters to be passed to
    Prometheus exporters:

    * ``prometheus_blackbox_exporter_cmdline_extras``
    * ``prometheus_elasticsearch_exporter_cmdline_extras``
    * ``prometheus_haproxy_exporter_cmdline_extras``
    * ``prometheus_memcached_exporter_cmdline_extras``
    * ``prometheus_mysqld_exporter_cmdline_extras``
    * ``prometheus_node_exporter_cmdline_extras``
    * ``prometheus_openstack_exporter_cmdline_extras``