The oslo_vmware.vim_util Module

The VMware API utility module.

class oslo_vmware.vim_util.WithRetrieval(vim, retrieve_result)

Bases: object

Context to retrieve results.

This context provides an iterator to retrieve results and cancel (when needed) retrieve operation on __exit__.

Example:

with WithRetrieval(vim, retrieve_result) as objects:
for obj in objects:
# Use obj
oslo_vmware.vim_util.build_object_spec(client_factory, root_folder, traversal_specs)

Builds the object spec.

Parameters:
  • client_factory – factory to get API input specs
  • root_folder – root folder reference; the starting point of traversal
  • traversal_specs – filter specs required for traversal
Returns:

object spec
oslo_vmware.vim_util.build_property_filter_spec(client_factory, property_specs, object_specs)

Builds the property filter spec.

Parameters:
  • client_factory – factory to get API input specs
  • property_specs – property specs to be collected for filtered objects
  • object_specs – object specs to identify objects to be filtered
Returns:

property filter spec
oslo_vmware.vim_util.build_property_spec(client_factory, type_='VirtualMachine', properties_to_collect=None, all_properties=False)

Builds the property spec.

Parameters:
  • client_factory – factory to get API input specs
  • type – type of the managed object
  • properties_to_collect – names of the managed object properties to be collected while traversal filtering
  • all_properties – whether all properties of the managed object need to be collected
Returns:

property spec
oslo_vmware.vim_util.build_recursive_traversal_spec(client_factory)

Builds recursive traversal spec to traverse managed object hierarchy.

Parameters:client_factory – factory to get API input specs
Returns:recursive traversal spec
oslo_vmware.vim_util.build_selection_spec(client_factory, name)

Builds the selection spec.

Parameters:
  • client_factory – factory to get API input specs
  • name – name for the selection spec
Returns:

selection spec
oslo_vmware.vim_util.build_traversal_spec(client_factory, name, type_, path, skip, select_set)

Builds the traversal spec.

Parameters:
  • client_factory – factory to get API input specs
  • name – name for the traversal spec
  • type – type of the managed object
  • path – property path of the managed object
  • skip – whether or not to filter the object identified by param path
  • select_set – set of selection specs specifying additional objects to filter
Returns:

traversal spec
oslo_vmware.vim_util.cancel_retrieval(vim, retrieve_result)

Cancels the retrieve operation if necessary.

Parameters:
  • vim – Vim object
  • retrieve_result – result of RetrievePropertiesEx API call
Raises:

VimException, VimFaultException, VimAttributeException, VimSessionOverLoadException, VimConnectionException
oslo_vmware.vim_util.continue_retrieval(vim, retrieve_result)

Continue retrieving results, if available.

Parameters:
  • vim – Vim object
  • retrieve_result – result of RetrievePropertiesEx API call
Raises:

VimException, VimFaultException, VimAttributeException, VimSessionOverLoadException, VimConnectionException
oslo_vmware.vim_util.find_extension(vim, key)

Looks for an existing extension.

Parameters:
  • vim – Vim object
  • key – the key to search for
Returns:

the data object Extension or None
oslo_vmware.vim_util.get_http_service_request_spec(client_factory, method, uri)

Build a HTTP service request spec.

Parameters:
  • client_factory – factory to get API input specs
  • method – HTTP method (GET, POST, PUT)
  • uri – target URL
oslo_vmware.vim_util.get_inventory_path(vim, entity_ref, max_objects=100)

Get the inventory path of a managed entity.

Parameters:
  • vim – Vim object
  • entity_ref – managed entity reference
  • max_objects – maximum number of objects that should be returned in a single call
Returns:

inventory path of the entity_ref
oslo_vmware.vim_util.get_moref(value, type_)

Get managed object reference.

Parameters:
  • value – value of the managed object
  • type – type of the managed object
Returns:

managed object reference with given value and type
oslo_vmware.vim_util.get_obj_spec(client_factory, obj, select_set=None)

Builds the Object Spec object.

oslo_vmware.vim_util.get_object_properties(vim, moref, properties_to_collect, skip_op_id=False)

Get properties of the given managed object.

Parameters:
  • vim – Vim object
  • moref – managed object reference
  • properties_to_collect – names of the managed object properties to be collected
  • skip_op_id – whether to skip putting opID in the request
Returns:

properties of the given managed object
Raises:

VimException, VimFaultException, VimAttributeException, VimSessionOverLoadException, VimConnectionException
oslo_vmware.vim_util.get_object_properties_dict(vim, moref, properties_to_collect)

Get properties of the given managed object as a dict.

Parameters:
  • vim – Vim object
  • moref – managed object reference
  • properties_to_collect – names of the managed object properties to be collected
Returns:

a dict of properties of the given managed object
Raises:

VimException, VimFaultException, VimAttributeException, VimSessionOverLoadException, VimConnectionException
oslo_vmware.vim_util.get_object_property(vim, moref, property_name, skip_op_id=False)

Get property of the given managed object.

Parameters:
  • vim – Vim object
  • moref – managed object reference
  • property_name – name of the property to be retrieved
  • skip_op_id – whether to skip putting opID in the request
Returns:

property of the given managed object
Raises:

VimException, VimFaultException, VimAttributeException, VimSessionOverLoadException, VimConnectionException
oslo_vmware.vim_util.get_objects(vim, type_, max_objects, properties_to_collect=None, all_properties=False)

Get all managed object references of the given type.

It is the caller’s responsibility to continue or cancel retrieval.

Parameters:
  • vim – Vim object
  • type – type of the managed object
  • max_objects – maximum number of objects that should be returned in a single call
  • properties_to_collect – names of the managed object properties to be collected
  • all_properties – whether all properties of the managed object need to be collected
Returns:

all managed object references of the given type
Raises:

VimException, VimFaultException, VimAttributeException, VimSessionOverLoadException, VimConnectionException
oslo_vmware.vim_util.get_prop_filter_spec(client_factory, obj_spec, prop_spec)

Builds the Property Filter Spec Object.

oslo_vmware.vim_util.get_prop_spec(client_factory, spec_type, properties)

Builds the Property Spec Object.

oslo_vmware.vim_util.get_properties_for_a_collection_of_objects(vim, type_, obj_list, properties, max_objects=None)

Gets the list of properties for the collection of objects of the type specified.

oslo_vmware.vim_util.get_vc_version(session)

Return the dot-separated vCenter version string. For example, “1.2”.

Parameters:session – vCenter soap session
Returns:vCenter version
oslo_vmware.vim_util.propset_dict(propset)

Turn a propset list into a dictionary

PropSet is an optional attribute on ObjectContent objects that are returned by the VMware API.

You can read more about these at: | http://pubs.vmware.com/vsphere-51/index.jsp | #com.vmware.wssdk.apiref.doc/ | vmodl.query.PropertyCollector.ObjectContent.html

Parameters:propset – a property “set” from ObjectContent
Returns:dictionary representing property set
oslo_vmware.vim_util.register_extension(vim, key, type, label='OpenStack', summary='OpenStack services', version='1.0')

Create a new extention.

Parameters:
  • vim – Vim object
  • key – the key for the extension
  • type – Managed entity type, as defined by the extension. This matches the type field in the configuration about a virtual machine or vApp
  • label – Display label
  • summary – Summary description
  • version – Extension version number as a dot-separated string