Adds support for hypervisor vmware ESX/ESXi server in OpenStack (Nova).
Key features included are,
1) Support for FLAT and VLAN networking model
2) Support for Guest console access through VMware vmrc
3) Integrated with Glance service for image storage and retrival
Documentation: A readme file at "doc/source/vmwareapi_readme.rst" encapsulates configuration/installation instructions required to use this module/feature.
* Corrected docstrings as per pep0257 recommentations.
* Stream-lined the comments.
* Updated code with locals() where ever applicable.
* VIM : It stands for VMware Virtual Infrastructure Methodology. We have used the terminology from VMware. we have added a question in FAQ inside vmware_readme.rst in doc/source
* New fake db: vmwareapi fake module uses a different set of fields and hence the structures required are different. Ex: bridge : 'xenbr0' does not hold good for VMware environment and bridge : 'vmnic0' is used instead. Also return values varies, hence went for implementing separate fake db.
* Now using eventlet library instead and removed io_utils.py from branch.
* Now using glance.client.Client instead of homegrown code to talk to Glance server to handle images.
* Corrected all mis-spelled function names and corresponding calls. Yeah, an auto-complete side-effect!
Images may be streamed raw, or will be streamed into the right place to allow room for an MBR and partition table, if using non-raw images. PV vs HVM detection now occurs on the image, immediately after it has been streamed. External kernel / ramdisk are also supported in this mode.
Unit test changes include a partial Glance simulator, which is stubbed in place of glance.client.Client. This allows us to pass through the VM spawn path with either glance or objectstore backends enabled; the unit tests now cover both. A dependency upon glance has been added to pip-requires, in order to pull the Glance client code into the venv.
This includes minor fixes to nova.image.glance. This code is expected to be heavily reworked anyway with the image-service-use-glance-clients work.
Chris Behrens