Files
container/Sources/Integration/VMTests.swift
T
Dmitry Kovba 50500276e2 Update allocations in Allocator (#264)
The `allocations` property in the nested `Allocator` structure wasn't
updated. This PR resolves the problem by using mutating methods and
keeping the original types as structs.
2025-08-13 12:50:23 -04:00

314 lines
10 KiB
Swift

//===----------------------------------------------------------------------===//
// Copyright © 2025 Apple Inc. and the Containerization project authors. All rights reserved.
//
// 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 Containerization
import ContainerizationError
import ContainerizationOCI
import Foundation
import Logging
extension IntegrationSuite {
func testMounts() async throws {
let id = "test-cat-mount"
let bs = try await bootstrap()
let buffer = BufferWriter()
let container = try LinuxContainer(id, rootfs: bs.rootfs, vmm: bs.vmm) { config in
let directory = try createMountDirectory()
config.process.arguments = ["/bin/cat", "/mnt/hi.txt"]
config.mounts.append(.share(source: directory.path, destination: "/mnt"))
config.process.stdout = buffer
}
try await container.create()
try await container.start()
let status = try await container.wait()
try await container.stop()
guard status == 0 else {
throw IntegrationError.assert(msg: "process status \(status) != 0")
}
let value = String(data: buffer.data, encoding: .utf8)
guard value == "hello" else {
throw IntegrationError.assert(
msg: "process should have returned from file 'hello' != '\(String(data: buffer.data, encoding: .utf8)!)")
}
}
func testPauseResume() async throws {
let id = "test-pause-resume"
let bs = try await bootstrap()
let container = try LinuxContainer(id, rootfs: bs.rootfs, vmm: bs.vmm) { config in
config.process.arguments = ["sleep", "infinity"]
}
try await container.create()
try await container.start()
// Very simple test of can we perform actions on the container after pause/resume.
try await container.pause()
try await Task.sleep(for: .milliseconds(500))
try await container.resume()
try await container.kill(SIGKILL)
try await container.wait()
try await container.stop()
}
func testPauseResumeWait() async throws {
let id = "test-pause-resume-wait"
let bs = try await bootstrap()
let container = try LinuxContainer(id, rootfs: bs.rootfs, vmm: bs.vmm) { config in
config.process.arguments = ["sleep", "2"]
}
try await container.create()
try await container.start()
let t = Task {
try await container.wait(timeoutInSeconds: 5)
}
try await Task.sleep(for: .milliseconds(25))
try await container.pause()
try await Task.sleep(for: .milliseconds(500))
try await container.resume()
let status = try await t.value
guard status == 0 else {
throw IntegrationError.assert(msg: "process status \(status) != 0")
}
try await container.stop()
}
func testPauseResumeIO() async throws {
let id = "test-pause-resume-io"
let bs = try await bootstrap()
let buffer = BufferWriter()
let container = try LinuxContainer(id, rootfs: bs.rootfs, vmm: bs.vmm) { config in
config.process.arguments = ["ping", "-c", "5", "localhost"]
config.process.stdout = buffer
}
try await container.create()
try await container.start()
try await container.pause()
try await Task.sleep(for: .seconds(2))
try await container.resume()
try await container.wait()
guard let str = String(data: buffer.data, encoding: .utf8) else {
throw IntegrationError.assert(msg: "failed to convert stdout to utf8")
}
// Should be 10 lines long. 5 of "filler" and 5 of actual
// output, however one of the lines is a blank newline.
let expectedLines = 9
let lines = str.split(separator: "\n")
guard lines.count == expectedLines else {
throw IntegrationError.assert(msg: "expected \(expectedLines), got \(lines.count)")
}
try await container.stop()
}
func testNestedVirtualizationEnabled() async throws {
let id = "test-nested-virt"
let bs = try await bootstrap()
let container = try LinuxContainer(id, rootfs: bs.rootfs, vmm: bs.vmm) { config in
config.process.arguments = ["/bin/true"]
config.virtualization = true
}
do {
try await container.create()
try await container.start()
} catch {
if let err = error as? ContainerizationError {
if err.code == .unsupported {
throw SkipTest(reason: err.message)
}
}
}
let status = try await container.wait()
try await container.stop()
guard status == 0 else {
throw IntegrationError.assert(msg: "process status \(status) != 0")
}
}
func testContainerManagerCreate() async throws {
let id = "test-container-manager"
// Get the kernel from bootstrap
let bs = try await bootstrap()
// Create ContainerManager with kernel and initfs reference
var manager = try ContainerManager(vmm: bs.vmm)
defer {
try? manager.delete(id)
}
let buffer = BufferWriter()
let container = try await manager.create(
id,
image: bs.image,
rootfs: bs.rootfs
) { config in
config.process.arguments = ["/bin/echo", "ContainerManager test"]
config.process.stdout = buffer
}
// Start the container
try await container.create()
try await container.start()
// Wait for completion
let status = try await container.wait()
try await container.stop()
guard status == 0 else {
throw IntegrationError.assert(msg: "process status \(status) != 0")
}
let output = String(data: buffer.data, encoding: .utf8)
guard output == "ContainerManager test\n" else {
throw IntegrationError.assert(
msg: "process should have returned 'ContainerManager test' != '\(output ?? "nil")'")
}
}
func testContainerReuse() async throws {
let id = "test-container-reuse"
// Get the kernel from bootstrap
let bs = try await bootstrap()
// Create ContainerManager with kernel and initfs reference
var manager = try ContainerManager(vmm: bs.vmm)
defer {
try? manager.delete(id)
}
let buffer = BufferWriter()
let container = try await manager.create(
id,
image: bs.image,
rootfs: bs.rootfs
) { config in
config.process.arguments = ["/bin/echo", "ContainerManager test"]
config.process.stdout = buffer
}
// Start the container
try await container.create()
try await container.start()
// Wait for completion
var status = try await container.wait()
guard status == 0 else {
throw IntegrationError.assert(msg: "process status \(status) != 0")
}
try await container.stop()
// Recreate things.
try await container.create()
try await container.start()
// Wait for completion.. again.
status = try await container.wait()
guard status == 0 else {
throw IntegrationError.assert(msg: "process status \(status) != 0")
}
let output = String(data: buffer.data, encoding: .utf8)
let expected = "ContainerManager test\nContainerManager test\n"
guard output == expected else {
throw IntegrationError.assert(
msg: "process should have returned '\(expected)' != '\(output ?? "nil")'")
}
}
func testContainerDevConsole() async throws {
let id = "test-container-devconsole"
let bs = try await bootstrap()
var manager = try ContainerManager(vmm: bs.vmm)
defer {
try? manager.delete(id)
}
let buffer = BufferWriter()
let container = try await manager.create(
id,
image: bs.image,
rootfs: bs.rootfs
) { config in
// We mount devtmpfs by default, and while this includes creating
// /dev/console typically that'll be pointing to /dev/hvc0 (the
// virtio serial console). This is just a character device, so a trivial
// way to check that our bind mounted console setup worked is by just
// parsing `mount`'s output and looking for /dev/console as it wouldn't
// be there normally without our dance.
config.process.arguments = ["mount"]
config.process.terminal = true
config.process.stdout = buffer
}
try await container.create()
try await container.start()
let status = try await container.wait()
try await container.stop()
guard status == 0 else {
throw IntegrationError.assert(msg: "process status \(status) != 0")
}
guard let str = String(data: buffer.data, encoding: .utf8) else {
throw IntegrationError.assert(
msg: "failed to convert standard output to a UTF8 string")
}
let devConsole = "/dev/console"
guard str.contains(devConsole) else {
throw IntegrationError.assert(
msg: "process should have \(devConsole) in `mount` output")
}
}
private func createMountDirectory() throws -> URL {
let dir = FileManager.default.uniqueTemporaryDirectory(create: true)
try "hello".write(to: dir.appendingPathComponent("hi.txt"), atomically: true, encoding: .utf8)
return dir
}
}