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vsphere-automation-sdk-python/vsphere/samples/vcenter/vm/placement.py

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2016-10-26 19:08:23 -04:00
"""
* *******************************************************
* Copyright (c) VMware, Inc. 2016. All Rights Reserved.
* *******************************************************
*
* DISCLAIMER. THIS PROGRAM IS PROVIDED TO YOU "AS IS" WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, WHETHER ORAL OR WRITTEN,
* EXPRESS OR IMPLIED. THE AUTHOR SPECIFICALLY DISCLAIMS ANY IMPLIED
* WARRANTIES OR CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY,
* NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE.
"""
from com.vmware.vcenter_client import (Cluster, Datastore, Folder, ResourcePool,
VM)
from vsphere.samples.vcenter.helper import vm_placement_helper
#####################################################################
# Placement samples: How to get a valid PlacementSpec to create a VM
#####################################################################
# Place to a Cluster
#
# a. Datacenter based flow:
# * Use vcenter.Datacenter#list() to find a datacenter
# * Find a compute resource that is in the selected Datacenter
# * 1. Cluster:
# * Use the cluster list operation to find a cluster in a
# datacenter with a specific name
#
def get_placement_spec_for_cluster(context):
"""
Cluster names are not guaranteed to be unique within a vCenter instance,
so we qualify our search using the Datacenter. If Folders are used, the
search must be qualified using Folders since a Cluster name is not
guaranteed to be unique across different Folders within a Datacenter.
"""
# Select a Cluster meeting our requirements
datacenter_name = context.testbed.config['DATACENTER2_NAME']
datacenter = context.testbed.entities['DATACENTER_IDS'][datacenter_name]
cluster_name = context.testbed.config['CLUSTER1_NAME']
names = set([cluster_name])
cluster_svc = Cluster(context.stub_config)
filter = Cluster.FilterSpec(
names=set([cluster_name]),
datacenters=set([datacenter]))
cluster_summaries = cluster_svc.list(filter=filter)
cluster = None
if len(cluster_summaries) > 0:
cluster = cluster_summaries[0].cluster
print("Selecting Cluster '{}' ({})".format(cluster_name, cluster))
else:
print("Cluster '{}' not found".format(cluster_name))
return None
# Select a Folder meeting our requirements.
#
# Must be in the same Datacenter as the Cluster that was chosen.
datacenter_name = context.testbed.config['DATACENTER2_NAME']
datacenter = context.testbed.entities['DATACENTER_IDS'][datacenter_name]
folder_name = context.testbed.config['VM_FOLDER2_NAME']
folder_svc = Folder(context.stub_config)
filter = Folder.FilterSpec(
names=set([folder_name]),
datacenters=set([datacenter]))
folder_summaries = folder_svc.list(filter=filter)
folder = None
if len(folder_summaries) > 0:
folder = folder_summaries[0].folder
print("Selecting Folder '{}' ({})".format(folder_name, folder))
else:
print("Folder '{}' not found".format(folder_name))
return None
# Select a Datastore meeting our requirements.
#
# Must be in the same Datacenter as the Cluster that was chosen.
# TODO No way to validate that Cluster is connected to Datastore
datacenter_name = context.testbed.config['DATACENTER2_NAME']
datacenter = context.testbed.entities['DATACENTER_IDS'][datacenter_name]
# TODO Parameterize based on NFS or VMFS
datastore_name = context.testbed.config['NFS_DATASTORE_NAME']
datastore_svc = Datastore(context.stub_config)
filter = Datastore.FilterSpec(
names=set([datastore_name]),
datacenters=set([datacenter]))
datastore_summaries = datastore_svc.list(filter=filter)
datastore = None
if len(datastore_summaries) > 0:
datastore = datastore_summaries[0].datastore
print("Selecting Datastore '{}' ({})".format(datastore_name, datastore))
else:
print("Datastore '{}' not found".format(datastore_name))
return None
placement_spec = VM.PlacementSpec(folder=folder,
cluster=cluster,
datastore=datastore)
print("get_placement_spec_for_cluster: Result is '{}'".
format(placement_spec))
return placement_spec
def get_placement_spec_for_resource_pool(context):
# Select a ResourcePool meeting our requirements
datacenter_name = context.testbed.config['DATACENTER2_NAME']
datacenter = context.testbed.entities['DATACENTER_IDS'][datacenter_name]
resource_pool_svc = ResourcePool(context.stub_config)
filter = ResourcePool.FilterSpec(datacenters=set([datacenter]))
resource_pool_summaries = resource_pool_svc.list(filter=filter)
resource_pool = None
if len(resource_pool_summaries) > 0:
resource_pool = resource_pool_summaries[0].resource_pool
print('Selecting ResourcePool ({})'.format(resource_pool))
else:
print("ResourcePool not found in Datacenter '{}'".
format(datacenter_name))
return None
# Select a Folder meeting our requirements.
#
# Must be in the same Datacenter as the ResourcePool that was chosen.
datacenter_name = context.testbed.config['DATACENTER2_NAME']
datacenter = context.testbed.entities['DATACENTER_IDS'][datacenter_name]
folder_name = context.testbed.config['VM_FOLDER2_NAME']
folder_svc = Folder(context.stub_config)
filter = Folder.FilterSpec(
names=set([folder_name]),
datacenters=set([datacenter]))
folder_summaries = folder_svc.list(filter=filter)
folder = None
if len(folder_summaries) > 0:
folder = folder_summaries[0].folder
print("Selecting Folder '{}' ({})".format(folder_name, folder))
else:
print("Folder '{}' not found".format(folder_name))
return None
# Select a Datastore meeting our requirements.
#
# Must be in the same Datacenter as the ResourcePool that was chosen.
datacenter_name = context.testbed.config['DATACENTER2_NAME']
datacenter = context.testbed.entities['DATACENTER_IDS'][datacenter_name]
# TODO Parameterize based on NFS or VMFS
datastore_name = context.testbed.config['NFS_DATASTORE_NAME']
datastore_svc = Datastore(context.stub_config)
filter = Datastore.FilterSpec(
names=set([datastore_name]),
datacenters=set([datacenter]))
datastore_summaries = datastore_svc.list(filter=filter)
datastore = None
if len(datastore_summaries) > 0:
datastore = datastore_summaries[0].datastore
print("Selecting Datastore '{}' ({})".format(datastore_name, datastore))
else:
print("Datastore '{}' not found".format(datastore_name))
return None
placement_spec = VM.PlacementSpec(folder=folder,
resource_pool=resource_pool,
datastore=datastore)
print("get_placement_spec_for_resourcepool: Result is '{}'".
format(placement_spec))
return placement_spec