pyro-mcp/tests/test_runtime_build.py

189 lines
7.1 KiB
Python

from __future__ import annotations
import hashlib
import json
import tarfile
from pathlib import Path
import pytest
from pyro_mcp.runtime_build import (
_build_paths,
_load_lock,
build_bundle,
generate_manifest,
materialize_binaries,
stage_agent,
stage_binaries,
stage_kernel,
stage_rootfs,
validate_sources,
)
def _write_text(path: Path, content: str) -> None:
path.parent.mkdir(parents=True, exist_ok=True)
path.write_text(content, encoding="utf-8")
def _make_source_tree(tmp_path: Path) -> tuple[Path, Path, Path]:
source_dir = tmp_path / "runtime_sources"
platform_root = source_dir / "linux-x86_64"
_write_text(source_dir / "NOTICE", "notice\n")
_write_text(platform_root / "bin/firecracker", "firecracker\n")
_write_text(platform_root / "bin/jailer", "jailer\n")
_write_text(platform_root / "guest/pyro_guest_agent.py", "#!/usr/bin/env python3\n")
_write_text(platform_root / "profiles/debian-base/vmlinux", "kernel-base\n")
_write_text(platform_root / "profiles/debian-base/rootfs.ext4", "rootfs-base\n")
_write_text(platform_root / "profiles/debian-git/vmlinux", "kernel-git\n")
_write_text(platform_root / "profiles/debian-git/rootfs.ext4", "rootfs-git\n")
_write_text(platform_root / "profiles/debian-build/vmlinux", "kernel-build\n")
_write_text(platform_root / "profiles/debian-build/rootfs.ext4", "rootfs-build\n")
lock = {
"bundle_version": "9.9.9",
"platform": "linux-x86_64",
"component_versions": {
"firecracker": "1.0.0",
"jailer": "1.0.0",
"kernel": "6.0.0",
"guest_agent": "0.2.0",
"base_distro": "debian-12",
},
"capabilities": {"vm_boot": True, "guest_exec": True, "guest_network": True},
"binaries": {"firecracker": "bin/firecracker", "jailer": "bin/jailer"},
"guest": {"agent": {"path": "guest/pyro_guest_agent.py"}},
"profiles": {
"debian-base": {
"description": "base",
"kernel": "profiles/debian-base/vmlinux",
"rootfs": "profiles/debian-base/rootfs.ext4",
},
"debian-git": {
"description": "git",
"kernel": "profiles/debian-git/vmlinux",
"rootfs": "profiles/debian-git/rootfs.ext4",
},
"debian-build": {
"description": "build",
"kernel": "profiles/debian-build/vmlinux",
"rootfs": "profiles/debian-build/rootfs.ext4",
},
},
}
(platform_root / "runtime.lock.json").write_text(
json.dumps(lock, indent=2) + "\n", encoding="utf-8"
)
build_dir = tmp_path / "build/runtime_bundle"
bundle_dir = tmp_path / "bundle_out"
return source_dir, build_dir, bundle_dir
def test_runtime_build_stages_and_manifest(tmp_path: Path) -> None:
source_dir, build_dir, bundle_dir = _make_source_tree(tmp_path)
paths = _build_paths(
source_dir=source_dir,
build_dir=build_dir,
bundle_dir=bundle_dir,
materialized_dir=tmp_path / "materialized_sources",
platform="linux-x86_64",
)
lock = _load_lock(paths)
paths.build_platform_root.mkdir(parents=True, exist_ok=True)
stage_binaries(paths, lock)
stage_kernel(paths, lock)
stage_rootfs(paths, lock)
stage_agent(paths, lock)
manifest = generate_manifest(paths, lock)
assert manifest["bundle_version"] == "9.9.9"
assert manifest["capabilities"]["guest_exec"] is True
assert manifest["component_versions"]["guest_agent"] == "0.2.0"
assert (paths.build_platform_root / "guest/pyro_guest_agent.py").exists()
def test_runtime_build_bundle_syncs_output(tmp_path: Path) -> None:
source_dir, build_dir, bundle_dir = _make_source_tree(tmp_path)
paths = _build_paths(
source_dir=source_dir,
build_dir=build_dir,
bundle_dir=bundle_dir,
materialized_dir=tmp_path / "materialized_sources",
platform="linux-x86_64",
)
manifest = build_bundle(paths, sync=True)
assert manifest["profiles"]["debian-git"]["description"] == "git"
assert (bundle_dir / "NOTICE").exists()
assert (bundle_dir / "linux-x86_64/manifest.json").exists()
assert (bundle_dir / "linux-x86_64/guest/pyro_guest_agent.py").exists()
def test_runtime_build_rejects_guest_capabilities_for_placeholder_sources(tmp_path: Path) -> None:
source_dir, build_dir, bundle_dir = _make_source_tree(tmp_path)
paths = _build_paths(
source_dir=source_dir,
build_dir=build_dir,
bundle_dir=bundle_dir,
materialized_dir=tmp_path / "materialized_sources",
platform="linux-x86_64",
)
lock_path = source_dir / "linux-x86_64/runtime.lock.json"
_write_text(
source_dir / "linux-x86_64/bin/firecracker",
"#!/usr/bin/env bash\n"
"echo 'bundled firecracker shim'\n",
)
_write_text(
source_dir / "linux-x86_64/profiles/debian-base/rootfs.ext4",
"placeholder-rootfs\n",
)
lock = json.loads(lock_path.read_text(encoding="utf-8"))
lock["capabilities"] = {"vm_boot": True, "guest_exec": True, "guest_network": True}
lock_path.write_text(json.dumps(lock, indent=2) + "\n", encoding="utf-8")
with pytest.raises(RuntimeError, match="guest-capable features"):
validate_sources(paths, _load_lock(paths))
def test_runtime_build_materializes_firecracker_release(tmp_path: Path) -> None:
source_dir, build_dir, bundle_dir = _make_source_tree(tmp_path)
archive_path = tmp_path / "firecracker-v1.12.1-x86_64.tgz"
release_dir = "release-v1.12.1-x86_64"
with tarfile.open(archive_path, "w:gz") as archive:
firecracker_path = tmp_path / "firecracker-bin"
jailer_path = tmp_path / "jailer-bin"
firecracker_path.write_text("real-firecracker\n", encoding="utf-8")
jailer_path.write_text("real-jailer\n", encoding="utf-8")
archive.add(firecracker_path, arcname=f"{release_dir}/firecracker-v1.12.1-x86_64")
archive.add(jailer_path, arcname=f"{release_dir}/jailer-v1.12.1-x86_64")
digest = hashlib.sha256(archive_path.read_bytes()).hexdigest()
lock_path = source_dir / "linux-x86_64/runtime.lock.json"
lock = json.loads(lock_path.read_text(encoding="utf-8"))
lock["upstream"] = {
"firecracker_release": {
"archive_url": archive_path.resolve().as_uri(),
"archive_sha256": digest,
"firecracker_member": f"{release_dir}/firecracker-v1.12.1-x86_64",
"jailer_member": f"{release_dir}/jailer-v1.12.1-x86_64",
}
}
lock_path.write_text(json.dumps(lock, indent=2) + "\n", encoding="utf-8")
paths = _build_paths(
source_dir=source_dir,
build_dir=build_dir,
bundle_dir=bundle_dir,
materialized_dir=tmp_path / "materialized_sources",
platform="linux-x86_64",
)
materialize_binaries(paths, _load_lock(paths))
assert (paths.materialized_platform_root / "bin/firecracker").read_text(encoding="utf-8") == (
"real-firecracker\n"
)
assert (paths.materialized_platform_root / "bin/jailer").read_text(encoding="utf-8") == (
"real-jailer\n"
)