80414299cd
Instead of checkpointing the tree and then accessing the generated tree inside the store via the `map_object` function we not just export the tree and use that. This better hides the internals of the store and also allows us to activate on-demand building that does not rely on checkpoints being implicitly built like exports.
293 lines
12 KiB
Python
293 lines
12 KiB
Python
#
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# Runtime tests for the individual assemblers.
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#
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import contextlib
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import hashlib
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import json
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import os
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import subprocess
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import tempfile
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import unittest
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from osbuild import loop
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from .. import test
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MEBIBYTE = 1024 * 1024
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@unittest.skipUnless(test.TestBase.have_test_data(), "no test-data access")
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@unittest.skipUnless(test.TestBase.can_bind_mount(), "root-only")
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class TestAssemblers(test.TestBase):
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@classmethod
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def setUpClass(cls):
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super().setUpClass()
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def setUp(self):
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self.osbuild = test.OSBuild()
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@contextlib.contextmanager
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def run_assembler(self, osb, name, options, output_path):
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with open(os.path.join(self.locate_test_data(),
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"manifests/filesystem.json")) as f:
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manifest = json.load(f)
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manifest["pipeline"] = dict(
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manifest["pipeline"],
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assembler={"name": name, "options": options}
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)
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data = json.dumps(manifest)
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treeid = osb.treeid_from_manifest(data)
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assert treeid
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with tempfile.TemporaryDirectory(dir="/var/tmp") as output_dir:
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osb.compile(data, output_dir=output_dir, exports=["assembler", "tree"])
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tree = os.path.join(output_dir, "tree")
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yield tree, os.path.join(output_dir, "assembler", output_path)
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def assertImageFile(self, filename, fmt, expected_size=None):
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info = json.loads(subprocess.check_output(["qemu-img", "info", "--output", "json", filename]))
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self.assertEqual(info["format"], fmt)
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self.assertEqual(info["virtual-size"], expected_size)
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def assertFilesystem(self, device, uuid, fstype, tree):
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output = subprocess.check_output(["blkid", "--output", "export", device], encoding="utf-8")
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blkid = dict(line.split("=") for line in output.strip().split("\n"))
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self.assertEqual(blkid["UUID"], uuid)
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self.assertEqual(blkid["TYPE"], fstype)
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with mount(device) as target_tree:
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diff = self.tree_diff(tree, target_tree)
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if fstype == 'ext4':
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added_files = ["/lost+found"]
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else:
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added_files = []
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self.assertEqual(diff["added_files"], added_files)
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self.assertEqual(diff["deleted_files"], [])
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self.assertEqual(diff["differences"], {})
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def assertGRUB2(self, device, l1hash, l2hash, size):
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m1 = hashlib.sha256()
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m2 = hashlib.sha256()
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with open(device, "rb") as d:
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sectors = d.read(size)
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self.assertEqual(len(sectors), size)
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m1.update(sectors[:440])
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m2.update(sectors[512:size])
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self.assertEqual(m1.hexdigest(), l1hash)
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self.assertEqual(m2.hexdigest(), l2hash)
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def assertPartitionTable(self, ptable, label, uuid, n_partitions, boot_partition=None):
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self.assertEqual(ptable["label"], label)
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self.assertEqual(ptable["id"][2:], uuid[:8])
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self.assertEqual(len(ptable["partitions"]), n_partitions)
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if boot_partition:
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bootable = [p.get("bootable", False) for p in ptable["partitions"]]
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self.assertEqual(bootable.count(True), 1)
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self.assertEqual(bootable.index(True) + 1, boot_partition)
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def read_partition_table(self, device):
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sfdisk = json.loads(subprocess.check_output(["sfdisk", "--json", device]))
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ptable = sfdisk["partitiontable"]
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self.assertIsNotNone(ptable)
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return ptable
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@unittest.skipUnless(test.TestBase.have_tree_diff(), "tree-diff missing")
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def test_rawfs(self):
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for fs_type in ["ext4", "xfs", "btrfs"]:
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with self.subTest(fs_type=fs_type):
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print(f" {fs_type}", flush=True)
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options = {
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"filename": "image.raw",
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"root_fs_uuid": "016a1cda-5182-4ab3-bf97-426b00b74eb0",
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"size": 1024 * MEBIBYTE,
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"fs_type": fs_type,
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}
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with self.osbuild as osb:
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with self.run_assembler(osb, "org.osbuild.rawfs", options, "image.raw") as (tree, image):
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self.assertImageFile(image, "raw", options["size"])
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self.assertFilesystem(image, options["root_fs_uuid"], fs_type, tree)
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@unittest.skipUnless(test.TestBase.have_tree_diff(), "tree-diff missing")
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def test_ostree(self):
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with self.osbuild as osb:
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with open(os.path.join(self.locate_test_data(),
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"manifests/fedora-ostree-commit.json")) as f:
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manifest = json.load(f)
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data = json.dumps(manifest)
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with tempfile.TemporaryDirectory(dir="/var/tmp") as output_dir:
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result = osb.compile(data, output_dir=output_dir, exports=["assembler"])
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compose_file = os.path.join(output_dir, "assembler", "compose.json")
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repo = os.path.join(output_dir, "assembler", "repo")
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with open(compose_file) as f:
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compose = json.load(f)
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commit_id = compose["ostree-commit"]
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ref = compose["ref"]
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rpmostree_inputhash = compose["rpm-ostree-inputhash"]
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os_version = compose["ostree-version"]
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assert commit_id
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assert ref
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assert rpmostree_inputhash
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assert os_version
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self.assertIn("metadata", result["assembler"])
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metadata = result["assembler"]["metadata"]
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self.assertIn("compose", metadata)
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self.assertEqual(compose, metadata["compose"])
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md = subprocess.check_output(
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[
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"ostree",
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"show",
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"--repo", repo,
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"--print-metadata-key=rpmostree.inputhash",
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commit_id
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], encoding="utf-8").strip()
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self.assertEqual(md, f"'{rpmostree_inputhash}'")
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md = subprocess.check_output(
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[
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"ostree",
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"show",
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"--repo", repo,
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"--print-metadata-key=version",
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commit_id
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], encoding="utf-8").strip()
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self.assertEqual(md, f"'{os_version}'")
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@unittest.skipUnless(test.TestBase.have_tree_diff(), "tree-diff missing")
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def test_qemu(self):
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loctl = loop.LoopControl()
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with self.osbuild as osb:
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for fmt in ["raw", "raw.xz", "qcow2", "vmdk", "vdi"]:
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for fs_type in ["ext4", "xfs", "btrfs"]:
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with self.subTest(fmt=fmt, fs_type=fs_type):
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print(f" {fmt} {fs_type}", flush=True)
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options = {
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"format": fmt,
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"filename": f"image.{fmt}",
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"ptuuid": "b2c09a39-db93-44c5-846a-81e06b1dc162",
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"root_fs_uuid": "aff010e9-df95-4f81-be6b-e22317251033",
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"size": 1024 * MEBIBYTE,
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"root_fs_type": fs_type,
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}
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with self.run_assembler(osb,
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"org.osbuild.qemu",
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options,
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f"image.{fmt}") as (tree, image):
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if fmt == "raw.xz":
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subprocess.run(["unxz", "--keep", "--force", image], check=True)
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image = image[:-3]
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fmt = "raw"
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self.assertImageFile(image, fmt, options["size"])
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with open_image(loctl, image, fmt) as (target, device):
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ptable = self.read_partition_table(device)
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self.assertPartitionTable(ptable,
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"dos",
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options["ptuuid"],
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1,
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boot_partition=1)
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if fs_type == "btrfs":
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l2hash = "919aad44d37aa9fdbb8cb1bbd8ce2a44e64aee76f4dceb805eaab041b7f62348"
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elif fs_type == "xfs":
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l2hash = "1729f531281e4c3cbcde2a39b587c9dd5334ea1335bb860905556d5b73603de6"
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else:
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l2hash = "24c3ad6be9a5687d5140e0bf66d25953c4f0c7eeb6aaced4cc64685f5b3cfa9e"
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self.assertGRUB2(device,
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"26e3327c6b5ac9b5e21d8b86f19ff7cb4d12fb2d0406713f936997d9d89de3ee",
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l2hash,
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1024 * 1024)
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p1 = ptable["partitions"][0]
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ssize = ptable.get("sectorsize", 512)
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start, size = p1["start"] * ssize, p1["size"] * ssize
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with loop_open(loctl, target, offset=start, size=size) as dev:
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self.assertFilesystem(dev, options["root_fs_uuid"], fs_type, tree)
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@unittest.skipUnless(test.TestBase.have_tree_diff(), "tree-diff missing")
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def test_tar(self):
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cases = [
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("tree.tar.gz", None, ["application/x-tar"]),
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("tree.tar.gz", "gzip", ["application/x-gzip", "application/gzip"])
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]
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with self.osbuild as osb:
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for filename, compression, expected_mimetypes in cases:
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options = {"filename": filename}
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if compression:
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options["compression"] = compression
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with self.run_assembler(osb,
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"org.osbuild.tar",
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options,
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filename) as (tree, image):
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output = subprocess.check_output(["file", "--mime-type", image], encoding="utf-8")
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_, mimetype = output.strip().split(": ") # "filename: mimetype"
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self.assertIn(mimetype, expected_mimetypes)
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if compression:
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continue
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# In the non-compression case, we verify the tree's content
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with tempfile.TemporaryDirectory(dir="/var/tmp") as tmp:
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args = [
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"tar",
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"--numeric-owner",
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"--selinux",
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"--acls",
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"--xattrs", "--xattrs-include", "*",
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"-xaf", image,
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"-C", tmp]
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subprocess.check_output(args, encoding="utf-8")
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diff = self.tree_diff(tree, tmp)
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self.assertEqual(diff["added_files"], [])
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self.assertEqual(diff["deleted_files"], [])
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self.assertEqual(diff["differences"], {})
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@contextlib.contextmanager
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def loop_create_device(ctl, fd, offset=None, sizelimit=None):
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lo = None
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try:
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lo = ctl.loop_for_fd(fd,
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offset=offset,
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sizelimit=sizelimit,
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autoclear=True)
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yield lo
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finally:
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if lo:
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lo.close()
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@contextlib.contextmanager
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def loop_open(ctl, image, *, offset=None, size=None):
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with open(image, "rb") as f:
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fd = f.fileno()
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with loop_create_device(ctl, fd, offset=offset, sizelimit=size) as lo:
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yield os.path.join("/dev", lo.devname)
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@contextlib.contextmanager
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def mount(device):
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with tempfile.TemporaryDirectory() as mountpoint:
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subprocess.run(["mount", "-o", "ro", device, mountpoint], check=True)
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try:
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yield mountpoint
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finally:
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subprocess.run(["umount", "--lazy", mountpoint], check=True)
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@contextlib.contextmanager
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def open_image(ctl, image, fmt):
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with tempfile.TemporaryDirectory() as tmp:
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if fmt != "raw":
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target = os.path.join(tmp, "image.raw")
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subprocess.run(["qemu-img", "convert", "-O", "raw", image, target],
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check=True)
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else:
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target = image
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size = os.stat(target).st_size
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with loop_open(ctl, target, offset=0, size=size) as dev:
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yield target, dev
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