const (
    // Prefix constant marks the reserved label space for libnetwork
    Prefix = "com.docker.network"

    // DriverPrefix constant marks the reserved label space for libnetwork drivers
    DriverPrefix = Prefix + ".driver"

    // DriverPrivatePrefix constant marks the reserved label space
    // for internal libnetwork drivers
    DriverPrivatePrefix = DriverPrefix + ".private"

    // GenericData constant that helps to identify an option as a Generic constant
    GenericData = Prefix + ".generic"

    // PortMap constant represents Port Mapping
    PortMap = Prefix + ".portmap"

    // MacAddress constant represents Mac Address config of a Container
    MacAddress = Prefix + ".endpoint.macaddress"

    // ExposedPorts constant represents the container's Exposed Ports
    ExposedPorts = Prefix + ".endpoint.exposedports"

    // DNSServers A list of DNS servers associated with the endpoint
    DNSServers = Prefix + ".endpoint.dnsservers"

    //EnableIPv6 constant represents enabling IPV6 at network level
    EnableIPv6 = Prefix + ".enable_ipv6"

    // DriverMTU constant represents the MTU size for the network driver
    DriverMTU = DriverPrefix + ".mtu"

    // OverlayBindInterface constant represents overlay driver bind interface
    OverlayBindInterface = DriverPrefix + ".overlay.bind_interface"

    // OverlayNeighborIP constant represents overlay driver neighbor IP
    OverlayNeighborIP = DriverPrefix + ".overlay.neighbor_ip"

    // OverlayVxlanIDList constant represents a list of VXLAN Ids as csv
    OverlayVxlanIDList = DriverPrefix + ".overlay.vxlanid_list"

    // Gateway represents the gateway for the network
    Gateway = Prefix + ".gateway"

    // Internal constant represents that the network is internal which disables default gateway service
    Internal = Prefix + ".internal"

    // ContainerIfacePrefix can be used to override the interface prefix used inside the container
    ContainerIfacePrefix = Prefix + ".container_iface_prefix"

    // HostIP is the Source-IP Address used to SNAT container traffic
    HostIP = Prefix + ".host_ipv4"
)

var (
    // GlobalKVProvider constant represents the KV provider backend
    GlobalKVProvider = MakeKVProvider("global")

    // GlobalKVProviderURL constant represents the KV provider URL
    GlobalKVProviderURL = MakeKVProviderURL("global")

    // GlobalKVProviderConfig constant represents the KV provider Config
    GlobalKVProviderConfig = MakeKVProviderConfig("global")

    // GlobalKVClient constants represents the global kv store client
    GlobalKVClient = MakeKVClient("global")

    // LocalKVProvider constant represents the KV provider backend
    LocalKVProvider = MakeKVProvider("local")

    // LocalKVProviderURL constant represents the KV provider URL
    LocalKVProviderURL = MakeKVProviderURL("local")

    // LocalKVProviderConfig constant represents the KV provider Config
    LocalKVProviderConfig = MakeKVProviderConfig("local")

    // LocalKVClient constants represents the local kv store client
    LocalKVClient = MakeKVClient("local")
)