3cdfe894ab
Since we can't generally shrink incoming images, add extra checks to ensure oversized images are not allowed through. All cases when populating the libvirt image cache are now handled, including the initial download from glance, where we avoid converting to raw, as that could generate non sparse images much larger than the downloaded image. * nova/virt/libvirt/utils.py (fetch_image): Allow passing through of the max_size parameter. * nova/virt/images.py (fetch_to_raw): Accept the max_size parameter, and use it to discard images with larger (virtual) sizes. * nova/virt/libvirt/imagebackend.py (verify_base_size): A new refactored function to identify and raise exception to oversized images. (Raw.create_image): Pass the max_size to the fetch function. Also enforce virtual image size checking for already fetched images, as this class (despite the name) can be handling qcow files. (Qcow2.create_image): Pass the max_size to the fetch function, or verify the virtual size for the instance as done previously. (Lvm.create_image): Pass the max_size to the fetch function. Also check the size before transferring to the volume to improve efficiency by not even attempting the transfer of oversized images. (Rbd.create_image): Likewise. * nova/tests/virt/libvirt/fake_libvirt_utils.py: Support max_size arg. * nova/tests/virt/libvirt/test_libvirt.py (test_fetch_raw_image): Add a case to check oversized images are discarded. * nova/tests/virt/libvirt/test_imagebackend.py (test_create_image_too_small): Adjust to avoid the fetch size check. Fixes bug: 1177830 Fixes bug: 1206081 Change-Id: I3d47adaa2ad07434853f447feb27d7aae0e2e717 |
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|---|---|---|
| contrib | ||
| doc | ||
| etc/nova | ||
| nova | ||
| plugins/xenserver | ||
| smoketests | ||
| tools | ||
| .coveragerc | ||
| .gitignore | ||
| .gitreview | ||
| .mailmap | ||
| .testr.conf | ||
| CONTRIBUTING.rst | ||
| HACKING.rst | ||
| LICENSE | ||
| MANIFEST.in | ||
| README.rst | ||
| babel.cfg | ||
| openstack-common.conf | ||
| pylintrc | ||
| requirements.txt | ||
| run_tests.sh | ||
| setup.cfg | ||
| setup.py | ||
| test-requirements.txt | ||
| tox.ini | ||
README.rst
OpenStack Nova README
OpenStack Nova provides a cloud computing fabric controller, supporting a wide variety of virtualization technologies, including KVM, Xen, LXC, VMware, and more. In addition to its native API, it includes compatibility with the commonly encountered Amazon EC2 and S3 APIs.
OpenStack Nova is distributed under the terms of the Apache License, Version 2.0. The full terms and conditions of this license are detailed in the LICENSE file.
Nova primarily consists of a set of Python daemons, though it requires and integrates with a number of native system components for databases, messaging and virtualization capabilities.
To keep updated with new developments in the OpenStack project follow @openstack on Twitter.
To learn how to deploy OpenStack Nova, consult the documentation available online at:
For information about the different compute (hypervisor) drivers supported by Nova, read this page on the wiki:
In the unfortunate event that bugs are discovered, they should be reported to the appropriate bug tracker. If you obtained the software from a 3rd party operating system vendor, it is often wise to use their own bug tracker for reporting problems. In all other cases use the master OpenStack bug tracker, available at:
Developers wishing to work on the OpenStack Nova project should always base their work on the latest Nova code, available from the master GIT repository at:
Developers should also join the discussion on the mailing list, at:
http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
Any new code must follow the development guidelines detailed in the HACKING.rst file, and pass all unit tests. Further developer focused documentation is available at:
For information on how to contribute to Nova, please see the contents of the CONTRIBUTING.rst file.
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