Files
apple--containerization/Tests/ContainerizationTests/LinuxContainerTests.swift
T
wehub-resource-sync 680845cb1c
Linux build / Determine Swift version (push) Waiting to run
Linux build / Linux compile check (push) Blocked by required conditions
Build containerization / Verify commit signatures (push) Has been skipped
Build containerization / containerization (push) Successful in 0s
chore: import upstream snapshot with attribution
2026-07-13 12:25:30 +08:00

123 lines
5.3 KiB
Swift

//===----------------------------------------------------------------------===//
// Copyright © 2025-2026 Apple Inc. and the Containerization 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 ContainerizationOCI
import ContainerizationOS
import Foundation
import Testing
@testable import Containerization
struct LinuxContainerTests {
@Test func processInitFromImageConfigWithAllFields() {
let imageConfig = ImageConfig(
user: "appuser",
env: ["NODE_ENV=production", "PORT=3000"],
entrypoint: ["/usr/bin/node"],
cmd: ["app.js", "--verbose"],
workingDir: "/app"
)
let process = LinuxProcessConfiguration(from: imageConfig)
#expect(process.workingDirectory == "/app")
#expect(process.environmentVariables == ["NODE_ENV=production", "PORT=3000"])
#expect(process.arguments == ["/usr/bin/node", "app.js", "--verbose"])
#expect(process.user.username == "appuser")
}
@Test func processInitFromImageConfigWithNilValues() {
let imageConfig = ImageConfig(
user: nil,
env: nil,
entrypoint: nil,
cmd: nil,
workingDir: nil
)
let process = LinuxProcessConfiguration(from: imageConfig)
#expect(process.workingDirectory == "/")
#expect(process.environmentVariables == [])
#expect(process.arguments == [])
#expect(process.user.username == "") // Default User() has empty string username
}
@Test func processInitFromImageConfigEntrypointAndCmdConcatenation() {
let imageConfig = ImageConfig(
entrypoint: ["/bin/sh", "-c"],
cmd: ["echo 'hello'", "&&", "sleep 10"]
)
let process = LinuxProcessConfiguration(from: imageConfig)
#expect(process.arguments == ["/bin/sh", "-c", "echo 'hello'", "&&", "sleep 10"])
}
@Test func defaultCapabilitiesAreRestrictedOCISet() {
// Regression guard against shipping `.allCapabilities` as the default.
// A default container must not receive CAP_SYS_ADMIN, which would let it
// write /proc/sys/kernel/core_pattern and escape to guest-root. Cover both
// construction paths: the no-argument init (property default) and the full
// memberwise init (parameter default).
let viaProperty = LinuxProcessConfiguration()
let viaInit = LinuxProcessConfiguration(arguments: ["/bin/sh"])
for caps in [viaProperty.capabilities, viaInit.capabilities] {
for set in [caps.bounding, caps.effective, caps.permitted, caps.inheritable, caps.ambient] {
#expect(!set.contains(.sysAdmin), "default capabilities must not include CAP_SYS_ADMIN")
}
}
// The default must be exactly the documented OCI baseline.
let expected = LinuxCapabilities.defaultOCICapabilities
#expect(viaProperty.capabilities.bounding == expected.bounding)
#expect(viaProperty.capabilities.effective == expected.effective)
#expect(viaProperty.capabilities.permitted == expected.permitted)
#expect(viaProperty.capabilities.inheritable == expected.inheritable)
#expect(viaProperty.capabilities.ambient == expected.ambient)
#expect(viaInit.capabilities.bounding == expected.bounding)
}
@Test func defaultMaskedAndReadonlyPathsAreOCISet() {
// Regression guard: masked/readonly paths must default to the OCI
// standard set now that capabilities default to the restricted baseline.
// Without CAP_SYS_ADMIN a workload can't unmount these, so the defaults
// are meaningful defense-in-depth — shipping empty defaults would leave
// /proc/kcore and friends exposed. Cover both construction paths and
// both configuration types.
let expectedMasked = LinuxContainer.defaultMaskedPaths()
let expectedReadonly = LinuxContainer.defaultReadonlyPaths()
// Sensitive kernel paths must actually be in the defaults.
#expect(expectedMasked.contains("/proc/kcore"))
#expect(expectedMasked.contains("/sys/firmware"))
#expect(expectedReadonly.contains("/proc/sys"))
let containerViaProperty = LinuxContainer.Configuration()
let containerViaInit = LinuxContainer.Configuration(process: LinuxProcessConfiguration(arguments: ["/bin/sh"]))
let pod = LinuxPod.ContainerConfiguration()
for config in [containerViaProperty, containerViaInit] {
#expect(config.maskedPaths == expectedMasked)
#expect(config.readonlyPaths == expectedReadonly)
}
#expect(pod.maskedPaths == expectedMasked)
#expect(pod.readonlyPaths == expectedReadonly)
}
}