chore: import upstream snapshot with attribution
container project - merge build / Invoke build (push) Successful in 1s
container project - merge build / Invoke build (push) Successful in 1s
This commit is contained in:
wehub-resource-sync
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//===----------------------------------------------------------------------===//
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// Copyright © 2026 Apple Inc. and the container project authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//===----------------------------------------------------------------------===//
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import CVersion
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import ContainerVersion
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import ContainerizationExtras
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import Foundation
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/// Top-level configuration decoded from config.toml.
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///
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/// Each section maps to a nested struct. Missing keys fall back to
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/// hardcoded defaults via custom `init(from:)` implementations.
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public final class ContainerSystemConfig: Codable, Sendable, Initable {
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public let build: BuildConfig
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public let container: ContainerConfig
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public let dns: DNSConfig
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public let kernel: KernelConfig
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public let machine: MachineConfig
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public let network: NetworkConfig
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public let registry: RegistryConfig
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public let vminit: VminitConfig
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public init(
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build: BuildConfig = .init(),
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container: ContainerConfig = .init(),
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dns: DNSConfig = .init(),
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kernel: KernelConfig = .init(),
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machine: MachineConfig = MachineConfig.default,
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network: NetworkConfig = .init(),
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registry: RegistryConfig = .init(),
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vminit: VminitConfig = .init()
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) {
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self.build = build
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self.container = container
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self.dns = dns
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self.kernel = kernel
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self.machine = machine
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self.network = network
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self.registry = registry
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self.vminit = vminit
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}
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public init() {
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self.build = .init()
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self.container = .init()
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self.dns = .init()
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self.kernel = .init()
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self.machine = MachineConfig.default
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self.network = .init()
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self.registry = .init()
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self.vminit = .init()
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}
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public init(from decoder: any Decoder) throws {
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let container = try decoder.container(keyedBy: CodingKeys.self)
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self.build = try container.decodeIfPresent(BuildConfig.self, forKey: .build) ?? .init()
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self.container = try container.decodeIfPresent(ContainerConfig.self, forKey: .container) ?? .init()
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self.dns = try container.decodeIfPresent(DNSConfig.self, forKey: .dns) ?? .init()
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self.kernel = try container.decodeIfPresent(KernelConfig.self, forKey: .kernel) ?? .init()
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self.machine = try container.decodeIfPresent(MachineConfig.self, forKey: .machine) ?? MachineConfig.default
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self.network = try container.decodeIfPresent(NetworkConfig.self, forKey: .network) ?? .init()
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self.registry = try container.decodeIfPresent(RegistryConfig.self, forKey: .registry) ?? .init()
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self.vminit = try container.decodeIfPresent(VminitConfig.self, forKey: .vminit) ?? .init()
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}
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}
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final public class BuildConfig: Codable, Sendable {
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public static let defaultRosetta = true
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public static let defaultCPUs = 2
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public static let defaultMemory = try! MemorySize("2048MB")
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public static var defaultImage: String {
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let tag = String(cString: get_container_builder_shim_version())
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return "ghcr.io/apple/container-builder-shim/builder:\(tag)"
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}
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public let rosetta: Bool
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public let cpus: Int
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public let memory: MemorySize
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public let image: String
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public init(
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rosetta: Bool = defaultRosetta,
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cpus: Int = defaultCPUs,
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memory: MemorySize = defaultMemory,
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image: String = defaultImage
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) {
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self.rosetta = rosetta
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self.cpus = cpus
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self.memory = memory
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self.image = image
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}
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public init(from decoder: any Decoder) throws {
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let container = try decoder.container(keyedBy: CodingKeys.self)
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self.rosetta = try container.decodeIfPresent(Bool.self, forKey: .rosetta) ?? Self.defaultRosetta
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self.cpus = try container.decodeIfPresent(Int.self, forKey: .cpus) ?? Self.defaultCPUs
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self.memory = try container.decodeIfPresent(MemorySize.self, forKey: .memory) ?? Self.defaultMemory
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self.image = try container.decodeIfPresent(String.self, forKey: .image) ?? Self.defaultImage
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}
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}
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final public class ContainerConfig: Codable, Sendable {
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public static let defaultCPUs = 4
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public static let defaultMemory = try! MemorySize("1g")
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public let cpus: Int
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public let memory: MemorySize
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public init(cpus: Int = defaultCPUs, memory: MemorySize = defaultMemory) {
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self.cpus = cpus
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self.memory = memory
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}
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public init(from decoder: any Decoder) throws {
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let container = try decoder.container(keyedBy: CodingKeys.self)
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self.cpus = try container.decodeIfPresent(Int.self, forKey: .cpus) ?? Self.defaultCPUs
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self.memory = try container.decodeIfPresent(MemorySize.self, forKey: .memory) ?? Self.defaultMemory
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}
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}
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final public class DNSConfig: Codable, Sendable {
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public let domain: String?
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public init(domain: String? = nil) {
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self.domain = domain
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}
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public init(from decoder: any Decoder) throws {
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let container = try decoder.container(keyedBy: CodingKeys.self)
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self.domain = try container.decodeIfPresent(String.self, forKey: .domain)
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}
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}
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final public class VminitConfig: Codable, Sendable {
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public static var defaultImage: String {
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let tag = String(cString: get_swift_containerization_version())
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return tag == "latest"
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? "vminit:latest"
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: "ghcr.io/apple/containerization/vminit:\(tag)"
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}
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public let image: String
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public init(image: String = defaultImage) {
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self.image = image
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}
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public init(from decoder: any Decoder) throws {
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let container = try decoder.container(keyedBy: CodingKeys.self)
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self.image = try container.decodeIfPresent(String.self, forKey: .image) ?? Self.defaultImage
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}
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}
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final public class KernelConfig: Codable, Sendable {
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public static let defaultBinaryPath = "opt/kata/share/kata-containers/vmlinux-6.18.15-186"
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public static let defaultURL: URL =
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URL(string: "https://github.com/kata-containers/kata-containers/releases/download/3.28.0/kata-static-3.28.0-arm64.tar.zst")!
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private enum CodingKeys: String, CodingKey {
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case binaryPath
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case url
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}
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public let binaryPath: String
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public let url: URL
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public init(
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binaryPath: String = defaultBinaryPath,
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url: URL = defaultURL
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) {
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self.binaryPath = binaryPath
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self.url = url
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}
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public init(from decoder: any Decoder) throws {
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let container = try decoder.container(keyedBy: CodingKeys.self)
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self.binaryPath =
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try container.decodeIfPresent(String.self, forKey: .binaryPath)
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?? Self.defaultBinaryPath
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if let urlString = try container.decodeIfPresent(String.self, forKey: .url),
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let parsed = URL(string: urlString)
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{
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self.url = parsed
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} else {
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self.url = Self.defaultURL
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}
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}
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// JSONEncoder special-cases URL to encode as absoluteString, but third-party
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// encoders (e.g. TOMLEncoder) hit Foundation's default Codable conformance which
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// encodes into a keyed container with a "relative" key. Encode as a plain string
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// so all formats produce a consistent URL representation.
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// If more config types start using URL, consider a property wrapper or a wrapper
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// type (like MemorySize) that encodes/decodes URL as a string uniformly.
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public func encode(to encoder: any Encoder) throws {
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var container = encoder.container(keyedBy: CodingKeys.self)
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try container.encode(binaryPath, forKey: .binaryPath)
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try container.encode(url.absoluteString, forKey: .url)
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}
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}
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final public class NetworkConfig: Codable, Sendable {
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public let subnet: CIDRv4?
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public let subnetv6: CIDRv6?
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public init(subnet: CIDRv4? = nil, subnetv6: CIDRv6? = nil) {
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self.subnet = subnet
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self.subnetv6 = subnetv6
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}
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}
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final public class RegistryConfig: Codable, Sendable {
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public static let defaultDomain = "docker.io"
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public let domain: String
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public init(domain: String = defaultDomain) {
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self.domain = domain
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}
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public init(from decoder: any Decoder) throws {
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let container = try decoder.container(keyedBy: CodingKeys.self)
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self.domain = try container.decodeIfPresent(String.self, forKey: .domain) ?? Self.defaultDomain
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}
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}
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