Hi all,
I've been testing libcloud for the past couple of months against vCloud
Director working with colleagues to develop a cloud portal for the
environmental science research community in the UK. Our experience with
libcloud has been good so thank you for all the great work that has gone into
this package.
We started testing against version 1.5 of vCD but have migrated to 5.5. In the
case of the latter, we've been able to use the existing driver for version 5.1
but there have been a couple of issues with some of the API calls. For
example, the explicitly setting the version 5.5 string in the Accept header is
needed in some cases. For the moment I've made a local patch to
libcloud.compute.drivers.vcloud modifying VCloudNodeDriver and defining new 5.5
classes:
class VCloudNodeDriver(NodeDriver):
"""
vCloud node driver
"""
. . .
def __new__(cls, key, secret=None, secure=True, host=None, port=None,
api_version=DEFAULT_API_VERSION, **kwargs):
if cls is VCloudNodeDriver:
if api_version == '0.8':
cls = VCloudNodeDriver
elif api_version == '1.5':
cls = VCloud_1_5_NodeDriver
elif api_version == '5.1':
cls = VCloud_1_5_NodeDriver
elif api_version == '5.5':
cls = VCloud_5_5_NodeDriver
else:
raise NotImplementedError(
"No VCloudNodeDriver found for API version %s" %
(api_version))
return super(VCloudNodeDriver, cls).__new__(cls)
. . .
class VCloud_5_5_Connection(VCloud_1_5_Connection):
def add_default_headers(self, headers):
headers['Accept'] = 'application/*+xml;version=5.5'
headers['x-vcloud-authorization'] = self.token
return headers
. . .
class VCloud_5_5_NodeDriver(VCloud_5_1_NodeDriver):
'''Use 5.5 Connection class to explicitly set 5.5 for the version in
Accept headers
'''
connectionCls = VCloud_5_5_Connection
We'd like to contribute a version 5.5 driver to the code base as I think we're
likely to come across further wrinkles as we explore more of the functionality
of the libcloud vCD driver.
We're also likely to want to make use of external cloud providers for our
system so some of the other drivers are useful to us. Unfortunately to make
connections outside from our site here we need to run through a proxy for both
HTTP and HTTPS. Again I've made a patch for this as the current code doesn't
seem to support this.
What would be the best way to contribute code back? Could we fork the git
repository and request any of our contributions be merged in?
Thanks,
Phil--
Scanned by iCritical.
