container/Sources/ContainerCommands/System/SystemStatus.swift

//===----------------------------------------------------------------------===//
// Copyright © 2025 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 ArgumentParser
import ContainerClient
import ContainerPlugin
import ContainerizationError
import Foundation
import Logging

extension Application {
    public struct SystemStatus: AsyncParsableCommand {
        public static let configuration = CommandConfiguration(
            commandName: "status",
            abstract: "Show the status of `container` services"
        )

        @Option(name: .shortAndLong, help: "Launchd prefix for services")
        var prefix: String = "com.apple.container."

        @OptionGroup
        var global: Flags.Global

        public init() {}

        public func run() async throws {
            let isRegistered = try ServiceManager.isRegistered(fullServiceLabel: "\(prefix)apiserver")
            if !isRegistered {
                print("apiserver is not running and not registered with launchd")
                Application.exit(withError: ExitCode(1))
            }

            // Now ping our friendly daemon. Fail after 10 seconds with no response.
            do {
                let systemHealth = try await ClientHealthCheck.ping(timeout: .seconds(10))
                print("apiserver is running")
                print("application data root: \(systemHealth.appRoot.path(percentEncoded: false))")
                print("application install root: \(systemHealth.installRoot.path(percentEncoded: false))")
                print("container-apiserver version: \(systemHealth.apiServerVersion)")
                print("container-apiserver commit: \(systemHealth.apiServerCommit)")
            } catch {
                print("apiserver is not running")
                Application.exit(withError: ExitCode(1))
            }
        }
    }
}