mirror of
https://github.com/apple/container.git
synced 2026-07-13 04:57:08 +00:00
J Logan
2b18fc5870
- Facilitates #507, #642. - Plumb logger with logger option access into every command. - StderrLogHandler allows logging to be enhanced for ANSI color mode for log levels, JSONL log output, replacing `--debug` with `--level level`. - Global logger is now just an Application.swift fileprivate only used for initial args processing. - Log with timestamp at debug and trace level. - Metadata output is crude at present; we can refine this in a follow-up.
85 lines
2.9 KiB
Swift
85 lines
2.9 KiB
Swift
//===----------------------------------------------------------------------===//
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// Copyright © 2025-2026 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 ArgumentParser
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import ContainerAPIClient
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import ContainerizationError
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import ContainerizationOS
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import Foundation
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import OSLog
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extension Application {
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public struct SystemLogs: AsyncLoggableCommand {
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public static let subsystem = "com.apple.container"
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public static let configuration = CommandConfiguration(
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commandName: "logs",
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abstract: "Fetch system logs for `container` services"
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)
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@Flag(name: .shortAndLong, help: "Follow log output")
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var follow: Bool = false
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@Option(
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name: .long,
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help: "Fetch logs starting from the specified time period (minus the current time); supported formats: m, h, d"
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)
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var last: String = "5m"
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@OptionGroup
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public var logOptions: Flags.Logging
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public init() {}
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public func run() async throws {
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let process = Process()
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let sigHandler = AsyncSignalHandler.create(notify: [SIGINT, SIGTERM])
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Task {
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for await _ in sigHandler.signals {
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process.terminate()
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Darwin.exit(0)
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}
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}
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do {
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var args = ["log"]
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args.append(self.follow ? "stream" : "show")
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args.append(contentsOf: ["--info", "--debug"])
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if !self.follow {
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args.append(contentsOf: ["--last", last])
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}
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args.append(contentsOf: ["--predicate", "subsystem = 'com.apple.container'"])
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process.launchPath = "/usr/bin/env"
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process.arguments = args
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process.standardOutput = FileHandle.standardOutput
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process.standardError = FileHandle.standardError
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try process.run()
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process.waitUntilExit()
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} catch {
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throw ContainerizationError(
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.invalidArgument,
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message: "failed to system logs: \(error)"
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)
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}
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throw ArgumentParser.ExitCode(process.terminationStatus)
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}
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}
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}
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