Nova 通过Python API 查询，创建，删除flavor

 [root@controller ~]# cat flavor.py
 from novaclient import client as nvclient
 from novaclient import utils
 from novaclient import base

 from keystoneauth1.identity import v3
 from keystoneauth1 import session
 from keystoneclient.v3 import client

 import time
 import sys
 import keystoneclient.v3.client as ksclient
 from neutronclient.v2_0 import client as netclient

 # Keystone get project_id
 auth = v3.Password(user_domain_name='Default',
                    username='admin',
                    password='openstack',
                    project_domain_name='Default',
                    project_name='admin',
                    auth_url='http://controller:35357/v3')
 sess = session.Session(auth=auth)
 keystone = client.Client(session=sess)

 projects_list = keystone.projects.list()
 for o in projects_list:
     name = getattr(o, "name", '')
     if name == "admin":
         project_id = getattr(o, "id", '')
         break

 # Nova
 nova = nvclient.Client('2.42', 'admin', 'openstack', project_id, 'http://controller:5000/v2.0')

 def flavors_list():
     flavors_list = nova.flavors.list()
     print "================ list flavor =============="
     for data in flavors_list:
         print "ID  :" + data.id
         print "Name:" + data.name
         print "CPU :" + str(data.vcpus)
         print "MEM :" + str(data.ram)
         print "Disk:" + str(data.disk)
         print "==========================================="
     print ""

 def flavors_create(name, ram, vcpus, disk):
     print "=============== create flavor ============="
     flavors_create = nova.flavors.create(name, ram, vcpus, disk, flavorid="auto",
                                          ephemeral=0, swap=0, rxtx_factor=1.0, is_public=True)
     print flavors_create
     print "===================  end  ================="
     print ""

 def set_key_flavor(name):
     print "============== set key flavor ============="
     key = {'hw:cpu_cores':'', 'hw:cpu_sockets':''}
     flavors_list = nova.flavors.list()
     for data in flavors_list:
         if data.name == name:
             print data
             data.set_keys(key)
     print "===================  end  ================="
     print ""

 def flavors_delete(name):
     print "=============== delete flavor ============="
     flavors_list = nova.flavors.list()
     for data in flavors_list:
         if data.name == name:
             print data
             nova.flavors.delete(data)
     print "===================  end  ================="

 flavors_list()
 flavors_create(name='flavor_demo', ram=4096, vcpus='', disk=0)
 set_key_flavor(name='flavor_demo')
 flavors_list()
 flavors_delete(name='flavor_demo')

运行效果：

[root@controller ~]# python flavor.py
================ list flavor ==============

=============== create flavor =============
<Flavor: flavor_demo>
=================== end =================

============== set key flavor =============
<Flavor: flavor_demo>
=================== end =================

[root@controller ~]# vim flavor.py
[root@controller ~]# python flavor.py
================ list flavor ==============

=============== create flavor =============
<Flavor: flavor_demo>
=================== end =================

============== set key flavor =============
<Flavor: flavor_demo>
=================== end =================

================ list flavor ==============
ID :c2c99abd-82d2-4ef5-9656-10bfaca5b8e8
Name:flavor_demo
CPU :4
MEM :4096
Disk:0
===========================================

=============== delete flavor =============
<Flavor: flavor_demo>
=================== end =================