"options":
  "nagios_context":
    "default": "juju"
    "type": "string"
    "description": |
      Used by the nrpe subordinate charms.
      A string that will be prepended to instance name to set the host name
      in nagios. So for instance the hostname would be something like:
          juju-myservice-0
      If you're running multiple environments with the same services in them
      this allows you to differentiate between them.
  "nagios_servicegroups":
    "default": ""
    "type": "string"
    "description": |
      A comma-separated list of nagios servicegroups.
      If left empty, the nagios_context will be used as the servicegroup
  "iface":
    "type": "string"
    "default": ""
    "description": |
      The interface to bind flannel overlay networking. The default value is
      the interface bound to the cni endpoint.
  "cidr":
    "type": "string"
    "default": "10.1.0.0/16"
    "description": |
      Network CIDR to assign to Flannel
  "port":
    "type": "int"
    "default": !!int "0"
    "description": |
      Network port to use for Flannel
  "vni":
    "type": "int"
    "default": !!int "0"
    "description": |
      VXLAN network id to assign to Flannel