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Auto upload missing images

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This commit is contained in:
Julien Duponchelle 2016-06-07 19:38:01 +02:00
parent 972cbd0594
commit 08e482004f
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GPG Key ID: CE8B29639E07F5E8
15 changed files with 194 additions and 65 deletions
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34
gns3server/compute/base_manager.py
View File

@ -38,7 +38,7 @@ from .project_manager import ProjectManager
from .nios.nio_udp import NIOUDP
from .nios.nio_tap import NIOTAP
from .nios.nio_ethernet import NIOEthernet
from ..utils.images import md5sum, remove_checksum
from ..utils.images import md5sum, remove_checksum, images_directories
from .error import NodeError, ImageMissingError
@ -389,24 +389,6 @@ class BaseManager:
assert nio is not None
return nio
def images_directories(self):
"""
Return all directory where we will look for images
by priority
"""
server_config = self.config.get_section_config("Server")
paths = []
img_directory = self.get_images_directory()
os.makedirs(img_directory, exist_ok=True)
paths.append(img_directory)
for directory in server_config.get("additional_images_path", "").split(":"):
paths.append(directory)
# Compatibility with old topologies we look in parent directory
paths.append(os.path.normpath(os.path.join(self.get_images_directory(), '..')))
# Return only the existings paths
return [force_unix_path(p) for p in paths if os.path.exists(p)]
def get_abs_image_path(self, path):
"""
Get the absolute path of an image
@ -417,6 +399,7 @@ class BaseManager:
if not path:
return ""
orig_path = path
server_config = self.config.get_section_config("Server")
img_directory = self.get_images_directory()
@ -427,8 +410,7 @@ class BaseManager:
raise NodeError("{} is not allowed on this remote server. Please use only a filename in {}.".format(path, img_directory))
if not os.path.isabs(path):
orig_path = path
for directory in self.images_directories():
for directory in images_directories(self._NODE_TYPE):
path = self._recursive_search_file_in_directory(directory, orig_path)
if path:
return force_unix_path(path)
@ -438,21 +420,21 @@ class BaseManager:
path = force_unix_path(os.path.join(self.get_images_directory(), *s))
if os.path.exists(path):
return path
raise ImageMissingError(path)
raise ImageMissingError(orig_path)
# For non local server we disallow using absolute path outside image directory
if server_config.get("local", False) is True:
path = force_unix_path(path)
if os.path.exists(path):
return path
raise ImageMissingError(path)
raise ImageMissingError(orig_path)
path = force_unix_path(path)
for directory in self.images_directories():
for directory in images_directories(self._NODE_TYPE):
if os.path.commonprefix([directory, path]) == directory:
if os.path.exists(path):
return path
raise ImageMissingError(path)
raise ImageMissingError(orig_path)
raise NodeError("{} is not allowed on this remote server. Please use only a filename in {}.".format(path, self.get_images_directory()))
def _recursive_search_file_in_directory(self, directory, searched_file):
@ -485,7 +467,7 @@ class BaseManager:
if not path:
return ""
path = force_unix_path(self.get_abs_image_path(path))
for directory in self.images_directories():
for directory in images_directories(self._NODE_TYPE):
if os.path.commonprefix([directory, path]) == directory:
return os.path.relpath(path, directory)
return path

1
gns3server/compute/dynamips/__init__.py
View File

@ -103,6 +103,7 @@ WIC_MATRIX = {"WIC-1ENET": WIC_1ENET,
class Dynamips(BaseManager):
_NODE_CLASS = DynamipsVMFactory
_NODE_TYPE = "dynamips"
_DEVICE_CLASS = DynamipsDeviceFactory
_ghost_ios_lock = None

1
gns3server/compute/error.py
View File

@ -39,3 +39,4 @@ class ImageMissingError(Exception):
def __init__(self, image):
super().__init__("The image {} is missing".format(image))
self.image = image

1
gns3server/compute/iou/__init__.py
View File

@ -33,6 +33,7 @@ log = logging.getLogger(__name__)
class IOU(BaseManager):
_NODE_CLASS = IOUVM
_NODE_TYPE = "iou"
def __init__(self):

1
gns3server/compute/qemu/__init__.py
View File

@ -38,6 +38,7 @@ log = logging.getLogger(__name__)
class Qemu(BaseManager):
_NODE_CLASS = QemuVM
_NODE_TYPE = "qemu"
@staticmethod
@asyncio.coroutine

21
gns3server/controller/compute.py
View File

@ -19,6 +19,7 @@ import aiohttp
import asyncio
import json
import uuid
import io
from ..utils import parse_version
from ..controller.controller_error import ControllerError
@ -34,6 +35,17 @@ class ComputeError(ControllerError):
pass
class ComputeConflict(aiohttp.web.HTTPConflict):
"""
Raise when the compute send a 409 that we can handle
:param response: The response of the compute
"""
def __init__(self, response):
super().__init__(text=response["message"])
self.response = response
class Timeout(aiohttp.Timeout):
"""
Could be removed with aiohttp 0.22 that support None timeout
@ -293,7 +305,7 @@ class Compute:
if hasattr(data, '__json__'):
data = json.dumps(data.__json__())
# Stream the request
elif isinstance(data, aiohttp.streams.StreamReader):
elif isinstance(data, aiohttp.streams.StreamReader) or isinstance(data, io.BufferedIOBase):
chunked = True
headers['content-type'] = 'application/octet-stream'
else:
@ -306,10 +318,13 @@ class Compute:
if response.status >= 300:
# Try to decode the GNS3 error
if body:
try:
msg = json.loads(body)["message"]
except (KeyError, json.decoder.JSONDecodeError):
msg = body
else:
msg = ""
if response.status == 400:
raise aiohttp.web.HTTPBadRequest(text="Bad request {} {}".format(url, body))
@ -320,6 +335,10 @@ class Compute:
elif response.status == 404:
raise aiohttp.web.HTTPNotFound(text=msg)
elif response.status == 409:
try:
raise ComputeConflict(json.loads(body))
# If the 409 doesn't come from a GNS3 server
except json.decoder.JSONDecodeError:
raise aiohttp.web.HTTPConflict(text=msg)
elif response.status == 500:
raise aiohttp.web.HTTPInternalServerError(text="Internal server error {}".format(url))

33
gns3server/controller/node.py
View File

@ -15,12 +15,16 @@
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import aiohttp
import asyncio
import copy
import uuid
import os
from .compute import ComputeConflict
from ..utils.images import images_directories
class Node:
def __init__(self, project, compute, node_id=None, node_type=None, name=None, console=None, console_type=None, properties={}):
@ -101,8 +105,19 @@ class Node:
"""
data = self._node_data()
data["node_id"] = self._id
trial = 0
while trial != 6:
try:
response = yield from self._compute.post("/projects/{}/{}/nodes".format(self._project.id, self._node_type), data=data)
except ComputeConflict as e:
if e.response.get("exception") == "ImageMissingError":
res = yield from self._upload_missing_image(self._node_type, e.response["image"])
if not res:
raise e
else:
self.parse_node_response(response.json)
return True
trial += 1
@asyncio.coroutine
def update(self, name=None, console=None, console_type=None, properties={}):
@ -236,6 +251,22 @@ class Node:
else:
return (yield from self._compute.delete("/projects/{}/{}/nodes/{}{}".format(self._project.id, self._node_type, self._id, path)))
@asyncio.coroutine
def _upload_missing_image(self, type, img):
"""
Search an image on local computer and upload it to remote compute
if the image exists
"""
for directory in images_directories(type):
image = os.path.join(directory, img)
if os.path.exists(image):
self.project.controller.notification.emit("log.info", {"message": "Uploading missing image {}".format(img)})
with open(image, 'rb') as f:
yield from self._compute.post("/{}/images/{}".format(self._node_type, os.path.basename(img)), data=f, timeout=None)
self.project.controller.notification.emit("log.info", {"message": "Upload finished for {}".format(img)})
return True
return False
@asyncio.coroutine
def dynamips_auto_idlepc(self):
"""

34
gns3server/utils/images.py
View File

@ -18,10 +18,44 @@
import os
import hashlib
from ..config import Config
from . import force_unix_path
import logging
log = logging.getLogger(__name__)
def images_directories(type):
"""
Return all directory where we will look for images
by priority
:param type: Type of emulator
"""
server_config = Config.instance().get_section_config("Server")
paths = []
img_dir = os.path.expanduser(server_config.get("images_path", "~/GNS3/images"))
if type == "qemu":
type_img_directory = os.path.join(img_dir, "QEMU")
elif type == "iou":
type_img_directory = os.path.join(img_dir, "IOU")
elif type == "dynamips":
type_img_directory = os.path.join(img_dir, "IOS")
else:
raise NotImplementedError("%s is not supported", type)
os.makedirs(type_img_directory, exist_ok=True)
paths.append(type_img_directory)
for directory in server_config.get("additional_images_path", "").split(":"):
paths.append(directory)
# Compatibility with old topologies we look in parent directory
paths.append(img_dir)
# Return only the existings paths
return [force_unix_path(p) for p in paths if os.path.exists(p)]
def md5sum(path):
"""
Return the md5sum of an image and cache it on disk

7
gns3server/web/route.py
View File

@ -197,11 +197,16 @@ class Route(object):
response = Response(request=request, route=route)
response.set_status(409)
response.json({"message": str(e), "status": 409})
except (NodeError, UbridgeError, ImageMissingError) as e:
except (NodeError, UbridgeError) as e:
log.error("Node error detected: {type}".format(type=e.__class__.__name__), exc_info=1)
response = Response(request=request, route=route)
response.set_status(409)
response.json({"message": str(e), "status": 409, "exception": e.__class__.__name__})
except (ImageMissingError) as e:
log.error("Image missing error detected: {}".format(e.image))
response = Response(request=request, route=route)
response.set_status(409)
response.json({"message": str(e), "status": 409, "image": e.image, "exception": e.__class__.__name__})
except asyncio.futures.CancelledError as e:
log.error("Request canceled")
response = Response(request=request, route=route)

22
tests/compute/test_manager.py
View File

@ -88,28 +88,6 @@ def test_create_node_old_topology(loop, project, tmpdir, vpcs):
assert f.read() == "1"
def test_images_directories(qemu, tmpdir):
path1 = tmpdir / "images1" / "QEMU" / "test1.bin"
path1.write("1", ensure=True)
path1 = force_unix_path(str(path1))
path2 = tmpdir / "images2" / "test2.bin"
path2.write("1", ensure=True)
path2 = force_unix_path(str(path2))
with patch("gns3server.config.Config.get_section_config", return_value={
"images_path": str(tmpdir / "images1"),
"additional_images_path": "/tmp/null24564:{}".format(tmpdir / "images2"),
"local": False}):
# /tmp/null24564 is ignored because doesn't exists
res = qemu.images_directories()
assert res[0] == str(tmpdir / "images1" / "QEMU")
assert res[1] == str(tmpdir / "images2")
assert res[2] == str(tmpdir / "images1")
assert len(res) == 3
def test_get_abs_image_path(qemu, tmpdir):
os.makedirs(str(tmpdir / "QEMU"))
path1 = force_unix_path(str(tmpdir / "test1.bin"))

16
tests/controller/test_compute.py
View File

@ -23,7 +23,7 @@ import asyncio
from unittest.mock import patch, MagicMock
from gns3server.controller.project import Project
from gns3server.controller.compute import Compute, ComputeError
from gns3server.controller.compute import Compute, ComputeError, ComputeConflict
from gns3server.version import __version__
from tests.utils import asyncio_patch, AsyncioMagicMock
@ -139,9 +139,19 @@ def test_compute_httpQueryNotConnectedNonGNS3Server2(compute, async_run):
def test_compute_httpQueryError(compute, async_run):
response = MagicMock()
with asyncio_patch("aiohttp.ClientSession.request", return_value=response) as mock:
response.status = 409
response.status = 404
with pytest.raises(aiohttp.web.HTTPConflict):
with pytest.raises(aiohttp.web.HTTPNotFound):
async_run(compute.post("/projects", {"a": "b"}))
def test_compute_httpQueryConflictError(compute, async_run):
response = MagicMock()
with asyncio_patch("aiohttp.ClientSession.request", return_value=response) as mock:
response.status = 409
response.read = AsyncioMagicMock(return_value=b'{"message": "Test"}')
with pytest.raises(ComputeConflict):
async_run(compute.post("/projects", {"a": "b"}))

40
tests/controller/test_node.py
View File

@ -18,7 +18,8 @@
import pytest
import uuid
import asyncio
from unittest.mock import MagicMock
import os
from unittest.mock import MagicMock, ANY
from tests.utils import AsyncioMagicMock
@ -77,7 +78,7 @@ def test_create(node, compute, project, async_run):
response.json = {"console": 2048}
compute.post = AsyncioMagicMock(return_value=response)
async_run(node.create())
assert async_run(node.create()) is True
data = {
"console": 2048,
"console_type": "vnc",
@ -90,6 +91,28 @@ def test_create(node, compute, project, async_run):
assert node._properties == {"startup_script": "echo test"}
def test_create_image_missing(node, compute, project, async_run):
node._console = 2048
node.__calls = 0
@asyncio.coroutine
def resp(*args, **kwargs):
node.__calls += 1
response = MagicMock()
if node.__calls == 1:
response.status = 409
response.json = {"image": "linux.img", "exception": "ImageMissingError"}
else:
response.status = 200
return response
compute.post = AsyncioMagicMock(side_effect=resp)
node._upload_missing_image = AsyncioMagicMock(return_value=True)
assert async_run(node.create()) is True
node._upload_missing_image.called is True
def test_update(node, compute, project, async_run):
response = MagicMock()
response.json = {"console": 2048}
@ -193,3 +216,16 @@ def test_dynamips_idlepc_proposals(node, async_run, compute):
async_run(node.dynamips_idlepc_proposals())
compute.get.assert_called_with("/projects/{}/dynamips/nodes/{}/idlepc_proposals".format(node.project.id, node.id), timeout=240)
def test_upload_missing_image(compute, controller, async_run, images_dir):
project = Project(str(uuid.uuid4()), controller=controller)
node = Node(project, compute,
name="demo",
node_id=str(uuid.uuid4()),
node_type="qemu",
properties={"hda_disk_image": "linux.img"})
open(os.path.join(images_dir, "linux.img"), 'w+').close()
assert async_run(node._upload_missing_image("qemu", "linux.img")) is True
compute.post.assert_called_with("/qemu/images/linux.img", data=ANY, timeout=None)

5
tests/utils.py
View File

@ -70,7 +70,10 @@ class AsyncioMagicMock(unittest.mock.MagicMock):
Magic mock returning coroutine
"""
def __init__(self, return_value=None, **kwargs):
def __init__(self, return_value=None, return_values=None, **kwargs):
"""
:return_values: Array of return value at each call will return the next
"""
if return_value:
future = asyncio.Future()
future.set_result(return_value)

27
tests/utils/test_images.py
View File

@ -16,8 +16,33 @@
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import os
from unittest.mock import patch
from gns3server.utils.images import md5sum, remove_checksum
from gns3server.utils import force_unix_path
from gns3server.utils.images import md5sum, remove_checksum, images_directories
def test_images_directories(tmpdir):
path1 = tmpdir / "images1" / "QEMU" / "test1.bin"
path1.write("1", ensure=True)
path1 = force_unix_path(str(path1))
path2 = tmpdir / "images2" / "test2.bin"
path2.write("1", ensure=True)
path2 = force_unix_path(str(path2))
with patch("gns3server.config.Config.get_section_config", return_value={
"images_path": str(tmpdir / "images1"),
"additional_images_path": "/tmp/null24564:{}".format(tmpdir / "images2"),
"local": False}):
# /tmp/null24564 is ignored because doesn't exists
res = images_directories("qemu")
assert res[0] == str(tmpdir / "images1" / "QEMU")
assert res[1] == str(tmpdir / "images2")
assert res[2] == str(tmpdir / "images1")
assert len(res) == 3
def test_md5sum(tmpdir):

2
tests/utils/test_path.py
View File

@ -19,7 +19,9 @@ import os
import pytest
import aiohttp
from gns3server.utils.path import check_path_allowed, get_default_project_directory
from gns3server.utils import force_unix_path
def test_check_path_allowed(config, tmpdir):