Vendor apple/containerization with a VM-extensions forwarding patch

Switch the containerization dependency from the github URL to a vendored copy (third_party/containerization, upstream commit 6b7b42ca) referenced by path, so we can carry a small local patch that upstream lacks: LinuxContainer.Configuration gains a `vmExtensions` field forwarded into VMConfiguration.extensions. Upstream already supports VMConfiguration.extensions + the VZInstanceExtension hook, but LinuxContainer — our only entry point — never forwarded them, so there was no way to attach a device (e.g. a memory balloon) to a container's VM. Tests/, docs/, examples/, images/ and the corresponding test targets are trimmed for footprint (we never build the dependency's tests). See PATCHES.md for the full diff vs. upstream and the re-vendoring procedure. Also adds the ContainerizationExtras product to NucleicCore (AddressAllocator, named in the configureVZ signature). Co-Authored-By: Claude Opus 4.8 <[email protected]>
2026-06-21 20:22:21 -07:00
commit 11b9825e09
280 changed files with 75699 additions and 0 deletions
@@ -0,0 +1,63 @@
+//===----------------------------------------------------------------------===//
+// 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 FoundationEssentials
+
+#if canImport(Musl)
+import Musl
+#elseif canImport(Glibc)
+import Glibc
+#endif
+
+struct ContainerMount {
+    private let mounts: [ContainerizationOCI.Mount]
+    private let rootfs: String
+
+    init(rootfs: String, mounts: [ContainerizationOCI.Mount]) {
+        self.rootfs = rootfs
+        self.mounts = mounts
+    }
+
+    func mountToRootfs() throws {
+        for m in self.mounts {
+            let osMount = m.toOSMount()
+            try osMount.mount(root: self.rootfs)
+        }
+    }
+
+    func configureConsole() throws {
+        let ptmx = rootfs + "/dev/ptmx"
+        guard remove(ptmx) == 0 else {
+            throw App.Errno(stage: "remove(ptmx)")
+        }
+        guard symlink("pts/ptmx", ptmx) == 0 else {
+            throw App.Errno(stage: "symlink(pts/ptmx)")
+        }
+    }
+}
+
+extension ContainerizationOCI.Mount {
+    func toOSMount() -> ContainerizationOS.Mount {
+        ContainerizationOS.Mount(
+            type: self.type,
+            source: self.source,
+            target: self.destination,
+            options: self.options
+        )
+    }
+}