charm-designate-bind/charm/config.yaml

options:
  allowed_nets:
    default: "p2p"
    type: string
    description:
      list of allowed networks, with trailing semicolons"  e.g., "10.172.0.0/16; 10.10.0.0/18;"
  forwarders:
    default: ""
    type: string
    description: |
      list of forwarders, with trailing semicolons:  e.g., "8.8.8.8; 10.1.1.1;"