container/Sources/ContainerResource/Network/AttachmentConfiguration.swift

//===----------------------------------------------------------------------===//
// Copyright © 2026 Apple Inc. and the container project authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//   https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//===----------------------------------------------------------------------===//

import ContainerizationExtras

/// Configuration information for attaching a container network interface to a network.
public struct AttachmentConfiguration: Codable, Sendable {
    /// The network ID associated with the attachment.
    public let network: String

    /// The option information for the attachment
    public let options: AttachmentOptions

    public init(network: String, options: AttachmentOptions) {
        self.network = network
        self.options = options
    }
}

// Option information for a network attachment.
public struct AttachmentOptions: Codable, Sendable {
    /// The hostname associated with the attachment.
    public let hostname: String

    /// The MAC address associated with the attachment (optional).
    public let macAddress: MACAddress?

    /// The MTU for the network interface.
    public let mtu: UInt32?

    public init(hostname: String, macAddress: MACAddress? = nil, mtu: UInt32? = nil) {
        self.hostname = hostname
        self.macAddress = macAddress
        self.mtu = mtu
    }
}