Select alternate data path with container system start --app-root path.

.github/workflows/common.yml

@@ -68,7 +68,10 @@ jobs:
       - name: Test the container project
         run: |
           launchctl setenv HTTP_PROXY $HTTP_PROXY
-          make test cleancontent install-kernel integration
+          APP_ROOT=$(mktemp -d -p "${RUNNER_TEMP}")
+          trap 'rm -rf "${APP_ROOT}"; echo Removing data directory ${TMP_DIR}' EXIT
+          echo "Created data directory ${APP_ROOT}"
+          make APP_ROOT="${APP_ROOT}" test install-kernel integration
         env:
           DEVELOPER_DIR: "/Applications/Xcode-latest.app/Contents/Developer"
 

Makefile

@@ -28,6 +28,13 @@ DSYM_DIR := bin/$(BUILD_CONFIGURATION)/bundle/container-dSYM
 DSYM_PATH := bin/$(BUILD_CONFIGURATION)/bundle/container-dSYM.zip
 CODESIGN_OPTS ?= --force --sign - --timestamp=none
 
+# Conditionally use a temporary data directory for integration tests
+ifeq ($(strip $(APP_ROOT)),)
+	SYSTEM_START_OPTS :=
+else
+	SYSTEM_START_OPTS := --app-root "$(strip $(APP_ROOT))"
+endif
+
 MACOS_VERSION := $(shell sw_vers -productVersion)
 MACOS_MAJOR := $(shell echo $(MACOS_VERSION) | cut -d. -f1)
 
@@ -124,28 +131,26 @@ test:
 .PHONY: install-kernel
 install-kernel:
 	@bin/container system stop || true
-	@bin/container system start --enable-kernel-install
+	@bin/container system start --enable-kernel-install $(SYSTEM_START_OPTS)
 
 .PHONY: integration
 integration: init-block
 	@echo Ensuring apiserver stopped before the CLI integration tests...
 	@bin/container system stop && sleep 3 && scripts/ensure-container-stopped.sh
 	@echo Running the integration tests...
-	@bin/container system start
-	@echo "Removing any existing containers"
-	@bin/container rm --all
-	@echo "Starting CLI integration tests"
-	@$(SWIFT) test -c $(BUILD_CONFIGURATION) --filter TestCLINetwork
-	@$(SWIFT) test -c $(BUILD_CONFIGURATION) --filter TestCLIRunLifecycle
-	@$(SWIFT) test -c $(BUILD_CONFIGURATION) --filter TestCLIExecCommand
-	@$(SWIFT) test -c $(BUILD_CONFIGURATION) --filter TestCLICreateCommand
-	@$(SWIFT) test -c $(BUILD_CONFIGURATION) --filter TestCLIRunCommand
-	@$(SWIFT) test -c $(BUILD_CONFIGURATION) --filter TestCLIImagesCommand
-	@$(SWIFT) test -c $(BUILD_CONFIGURATION) --filter TestCLIRunBase
-	@$(SWIFT) test -c $(BUILD_CONFIGURATION) --filter TestCLIBuildBase
-	@$(SWIFT) test -c $(BUILD_CONFIGURATION) --filter TestCLIVolumes
-	@echo Ensuring apiserver stopped after the CLI integration tests...
-	@scripts/ensure-container-stopped.sh
+	bin/container system start $(SYSTEM_START_OPTS) ; \
+	echo "Starting CLI integration tests" ; \
+	$(SWIFT) test -c $(BUILD_CONFIGURATION) --filter TestCLINetwork ; \
+	$(SWIFT) test -c $(BUILD_CONFIGURATION) --filter TestCLIRunLifecycle ; \
+	$(SWIFT) test -c $(BUILD_CONFIGURATION) --filter TestCLIExecCommand ; \
+	$(SWIFT) test -c $(BUILD_CONFIGURATION) --filter TestCLICreateCommand ; \
+	$(SWIFT) test -c $(BUILD_CONFIGURATION) --filter TestCLIRunCommand ; \
+	$(SWIFT) test -c $(BUILD_CONFIGURATION) --filter TestCLIImagesCommand ; \
+	$(SWIFT) test -c $(BUILD_CONFIGURATION) --filter TestCLIRunBase ; \
+	$(SWIFT) test -c $(BUILD_CONFIGURATION) --filter TestCLIBuildBase ; \
+	$(SWIFT) test -c $(BUILD_CONFIGURATION) --filter TestCLIVolumes ; \
+	echo Ensuring apiserver stopped after the CLI integration tests ; \
+	scripts/ensure-container-stopped.sh
 
 .PHONY: fmt
 fmt: swift-fmt update-licenses

Package.swift

@@ -164,6 +164,7 @@ let package = Package(
                 .product(name: "Containerization", package: "containerization"),
                 "CVersion",
                 "ContainerLog",
+                "ContainerPlugin",
                 "ContainerXPC",
                 "ContainerImagesService",
             ],

Sources/APIServer/APIServer.swift

@@ -43,16 +43,11 @@ struct APIServer: AsyncParsableCommand {
     @Flag(name: .long, help: "Enable debug logging")
     var debug = false
 
-    @Option(name: .shortAndLong, help: "Daemon root directory")
-    var root = Self.appRoot.path
+    var appRoot = ApplicationRoot.url
 
-    static let appRoot: URL = {
-        FileManager.default.urls(
-            for: .applicationSupportDirectory,
-            in: .userDomainMask
-        ).first!
-        .appendingPathComponent("com.apple.container")
-    }()
+    static func releaseVersion() -> String {
+        (Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String) ?? get_release_version().map { String(cString: $0) } ?? "0.0.0"
+    }
 
     func run() async throws {
         let commandName = Self.configuration.commandName ?? "container-apiserver"
@@ -64,20 +59,18 @@ struct APIServer: AsyncParsableCommand {
 
         do {
             log.info("configuring XPC server")
-            let root = URL(filePath: root)
             var routes = [XPCRoute: XPCServer.RouteHandler]()
             let pluginLoader = try initializePluginLoader(log: log)
             try await initializePlugins(pluginLoader: pluginLoader, log: log, routes: &routes)
-            let containersService = try initializeContainerService(root: root, pluginLoader: pluginLoader, log: log, routes: &routes)
+            let containersService = try initializeContainerService(pluginLoader: pluginLoader, log: log, routes: &routes)
             let networkService = try await initializeNetworkService(
-                root: root,
                 pluginLoader: pluginLoader,
                 log: log,
                 routes: &routes
             )
             initializeHealthCheckService(log: log, routes: &routes)
             try initializeKernelService(log: log, routes: &routes)
-            try initializeVolumeService(root: root, containersService: containersService, log: log, routes: &routes)
+            try initializeVolumeService(containersService: containersService, log: log, routes: &routes)
 
             let server = XPCServer(
                 identifier: "com.apple.container.apiserver",
@@ -134,7 +127,10 @@ struct APIServer: AsyncParsableCommand {
             .deletingLastPathComponent()
             .appendingPathComponent("..")
             .standardized
-        let pluginsURL = PluginLoader.userPluginsDir(root: installRoot)
+        log.info("initializing plugin loader", metadata: ["installRoot": "\(installRoot.path(percentEncoded: false))"])
+
+        let pluginsURL = PluginLoader.userPluginsDir(installRoot: installRoot)
+        log.info("detecting user plugins directory", metadata: ["path": "\(pluginsURL.path(percentEncoded: false))"])
         var directoryExists: ObjCBool = false
         _ = FileManager.default.fileExists(atPath: pluginsURL.path, isDirectory: &directoryExists)
         let userPluginsURL = directoryExists.boolValue ? pluginsURL : nil
@@ -161,10 +157,19 @@ struct APIServer: AsyncParsableCommand {
             AppBundlePluginFactory(),
         ]
 
-        log.info("PLUGINS: \(pluginDirectories)")
-        let statePath = PluginLoader.defaultPluginResourcePath(root: Self.appRoot)
+        for pluginDirectory in pluginDirectories {
+            log.info("discovered plugin directory", metadata: ["path": "\(pluginDirectory.path(percentEncoded: false))"])
+        }
+
+        let statePath = PluginLoader.defaultPluginResourcePath(root: appRoot)
         try FileManager.default.createDirectory(at: statePath, withIntermediateDirectories: true)
-        return PluginLoader(pluginDirectories: pluginDirectories, pluginFactories: pluginFactories, defaultResourcePath: statePath, log: log)
+        return PluginLoader(
+            appRoot: appRoot,
+            pluginDirectories: pluginDirectories,
+            pluginFactories: pluginFactories,
+            defaultResourcePath: statePath,
+            log: log
+        )
     }
 
     // First load all of the plugins we can find. Then just expose
@@ -188,20 +193,20 @@ struct APIServer: AsyncParsableCommand {
     }
 
     private func initializeHealthCheckService(log: Logger, routes: inout [XPCRoute: XPCServer.RouteHandler]) {
-        let svc = HealthCheckHarness(log: log)
+        let svc = HealthCheckHarness(appRoot: appRoot, log: log)
         routes[XPCRoute.ping] = svc.ping
     }
 
     private func initializeKernelService(log: Logger, routes: inout [XPCRoute: XPCServer.RouteHandler]) throws {
-        let svc = try KernelService(log: log, appRoot: Self.appRoot)
+        let svc = try KernelService(log: log, appRoot: appRoot)
         let harness = KernelHarness(service: svc, log: log)
         routes[XPCRoute.installKernel] = harness.install
         routes[XPCRoute.getDefaultKernel] = harness.getDefaultKernel
     }
 
-    private func initializeContainerService(root: URL, pluginLoader: PluginLoader, log: Logger, routes: inout [XPCRoute: XPCServer.RouteHandler]) throws -> ContainersService {
+    private func initializeContainerService(pluginLoader: PluginLoader, log: Logger, routes: inout [XPCRoute: XPCServer.RouteHandler]) throws -> ContainersService {
         let service = try ContainersService(
-            root: root,
+            appRoot: appRoot,
             pluginLoader: pluginLoader,
             log: log
         )
@@ -217,12 +222,11 @@ struct APIServer: AsyncParsableCommand {
     }
 
     private func initializeNetworkService(
-        root: URL,
         pluginLoader: PluginLoader,
         log: Logger,
         routes: inout [XPCRoute: XPCServer.RouteHandler]
     ) async throws -> NetworksService {
-        let resourceRoot = root.appendingPathComponent("networks")
+        let resourceRoot = appRoot.appendingPathComponent("networks")
         let service = try await NetworksService(
             pluginLoader: pluginLoader,
             resourceRoot: resourceRoot,
@@ -245,8 +249,8 @@ struct APIServer: AsyncParsableCommand {
         return service
     }
 
-    private func initializeVolumeService(root: URL, containersService: ContainersService, log: Logger, routes: inout [XPCRoute: XPCServer.RouteHandler]) throws {
-        let resourceRoot = root.appendingPathComponent("volumes")
+    private func initializeVolumeService(containersService: ContainersService, log: Logger, routes: inout [XPCRoute: XPCServer.RouteHandler]) throws {
+        let resourceRoot = appRoot.appendingPathComponent("volumes")
         let service = try VolumesService(resourceRoot: resourceRoot, containersService: containersService, log: log)
         let harness = VolumesHarness(service: service, log: log)
 
@@ -255,8 +259,4 @@ struct APIServer: AsyncParsableCommand {
         routes[XPCRoute.volumeList] = harness.list
         routes[XPCRoute.volumeInspect] = harness.inspect
     }
-
-    private static func releaseVersion() -> String {
-        (Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String) ?? get_release_version().map { String(cString: $0) } ?? "0.0.0"
-    }
 }

Sources/APIServer/Containers/ContainersService.swift

@@ -56,8 +56,8 @@ actor ContainersService {
         }
     }
 
-    public init(root: URL, pluginLoader: PluginLoader, log: Logger) throws {
-        let containerRoot = root.appendingPathComponent("containers")
+    public init(appRoot: URL, pluginLoader: PluginLoader, log: Logger) throws {
+        let containerRoot = appRoot.appendingPathComponent("containers")
         try FileManager.default.createDirectory(at: containerRoot, withIntermediateDirectories: true)
         self.containerRoot = containerRoot
         self.pluginLoader = pluginLoader
@@ -200,7 +200,7 @@ actor ContainersService {
         ]
         try loader.registerWithLaunchd(
             plugin: plugin,
-            rootURL: path,
+            pluginStateRoot: path,
             args: args,
             instanceId: configuration.id
         )

Sources/APIServer/HealthCheck/HealthCheckHarness.swift

@@ -14,20 +14,28 @@
 // limitations under the License.
 //===----------------------------------------------------------------------===//
 
+import CVersion
 import ContainerClient
 import ContainerXPC
 import Containerization
+import Foundation
 import Logging
 
 actor HealthCheckHarness {
+    private let appRoot: URL
     private let log: Logger
 
-    public init(log: Logger) {
+    public init(appRoot: URL, log: Logger) {
+        self.appRoot = appRoot
         self.log = log
     }
 
     @Sendable
     func ping(_ message: XPCMessage) async -> XPCMessage {
-        message.reply()
+        let reply = message.reply()
+        reply.set(key: .appRoot, value: appRoot.formatted())
+        reply.set(key: .apiServerVersion, value: APIServer.releaseVersion())
+        reply.set(key: .apiServerCommit, value: get_git_commit().map { String(cString: $0) } ?? "unknown")
+        return reply
     }
 }

Sources/APIServer/Networks/NetworksService.swift

@@ -230,7 +230,7 @@ actor NetworksService {
 
         try await pluginLoader.registerWithLaunchd(
             plugin: networkPlugin,
-            rootURL: store.entityUrl(configuration.id),
+            pluginStateRoot: store.entityUrl(configuration.id),
             args: args,
             instanceId: configuration.id
         )