- op: add
  path: /spec/versions/name=v1/schema/openAPIV3Schema/properties/spec/properties/upstreamResolvers/default
  value: {}
- op: add
  path: /spec/versions/name=v1/schema/openAPIV3Schema/properties/spec/properties/upstreamResolvers/properties/upstreams/items/properties/address/anyOf
  value:
    - format: ipv4
    - format: ipv6
- op: add
  path: /spec/versions/name=v1/schema/openAPIV3Schema/properties/spec/properties/upstreamResolvers/properties/upstreams/items/anyOf
  value:
  - properties:
      type:
        enum: [ "","SystemResolvConf" ] # empty string because client-side validation will not see the default value
    not:
      required: [ "address", "port" ]
  - properties:
      type:
        enum: [ "Network" ]
    required: [ "address" ]
    optional: [ "port" ]