mirror of
https://github.com/apple/container.git
synced 2026-07-15 05:57:01 +00:00
Kathryn Baldauf
16f2630126
We're working on making a pure swift container image build system that leverages containerization. This PR represents our initial design and initial work towards this goal. The native builder is still in active development and most of the implementation has not been started or completed. We will be opening a series of issues that represent various (but not necessarily all) pieces of work that need to be done here. There are docs included in this PR that describe the overall design of each component and outline some of our goals. The easiest way to view the docs by themselves (since this is a massive PR) is to look at the docs commit in the `Commits` tab. We'd love any feedback! @wlan0 --------- Signed-off-by: Kathryn Baldauf <k_baldauf@apple.com>
106 lines
4.0 KiB
Swift
106 lines
4.0 KiB
Swift
//===----------------------------------------------------------------------===//
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// Copyright © 2025 Apple Inc. and the container project authors. All rights reserved.
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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 ContainerBuildIR
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import ContainerBuildSnapshotter
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import Foundation
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/// Executes ExecOperation (RUN commands).
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public struct ExecOperationExecutor: OperationExecutor {
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public let capabilities: ExecutorCapabilities
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public init() {
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self.capabilities = ExecutorCapabilities(
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supportedOperations: [.exec],
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maxConcurrency: 5
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)
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}
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public func execute(_ operation: ContainerBuildIR.Operation, context: ExecutionContext) async throws -> ExecutionResult {
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guard let execOp = operation as? ExecOperation else {
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throw ExecutorError(
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type: .invalidConfiguration,
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context: ExecutorError.ErrorContext(
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operation: operation, underlyingError: NSError(domain: "Executor", code: 1, userInfo: [NSLocalizedDescriptionKey: "Unsupported operation"]),
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diagnostics: ExecutorError.Diagnostics(environment: [:], workingDirectory: "", recentLogs: [])))
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}
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do {
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// Stub implementation
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// In a real implementation, this would:
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// 1. Prepare the container environment
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// 2. Execute the command
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// 3. Capture output and changes
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// 4. Update the snapshot
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let startTime = Date()
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// Simulate command execution
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let commandString = execOp.command.displayString
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let output = ExecutionOutput(
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stdout: "Executing: \(commandString)\nOutput from command execution...\nDone.",
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stderr: "",
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exitCode: 0
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)
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// Simulate filesystem changes
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let changes = ContainerBuildSnapshotter.FilesystemChanges(
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added: ["/tmp/exec-\(UUID().uuidString)"],
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sizeChange: 1024
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)
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// Create a new snapshot
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let snapshot = try ContainerBuildSnapshotter.Snapshot(
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digest: Digest(algorithm: .sha256, bytes: Data(count: 32)),
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size: 1024,
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parent: context.latestSnapshot()?.id
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)
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let duration = Date().timeIntervalSince(startTime)
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return ExecutionResult(
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filesystemChanges: changes,
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environmentChanges: [:],
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metadataChanges: [:],
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snapshot: snapshot,
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duration: duration,
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output: output
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)
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} catch {
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// Collect diagnostics
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let environment = context.environment.effectiveEnvironment
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let diagnostics = ExecutorError.Diagnostics(
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environment: environment,
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workingDirectory: context.workingDirectory,
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recentLogs: ["Failed to execute: \(execOp.command.displayString)"]
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)
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throw ExecutorError(
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type: .executionFailed,
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context: ExecutorError.ErrorContext(
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operation: operation,
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underlyingError: error,
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diagnostics: diagnostics
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)
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)
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}
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}
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public func canExecute(_ operation: ContainerBuildIR.Operation) -> Bool {
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operation is ExecOperation
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}
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}
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