Openstack API管理之glance镜像服务

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Openstack-glance API镜像管理的相关例子：

我的openstack环境变量写在openstack.conf中，

[OPENSTACK]OS_USERNAME=adminOS_PASSWORD=Passw0rdOS_TENANT_NAME=adminOS_AUTH_URL=http://192.168.122.7:5000/v2.0OS_REGION_NAME=RegionOne

python-glanceclient API:

class glanceclient.v2.client.Client(endpoint, **kwargs)Bases: objectClient for the OpenStack Images v2 API.Parameters:endpoint (string) – A user-supplied endpoint URL for the glance service.token (string) – Token for authentication.timeout (integer) – Allows customization of the timeout for client http requests. (optional)

首先要通过keystone获取glance service的endpoint:

from keystoneclient.v2_0 import client as keystoneclient

from glanceclient.v2 import client as gclient

import ConfigParserconfig = ConfigParser.ConfigParser()conf = open('openstack.conf','r')config.readfp(conf)USERNAME = config.get('OPENSTACK','OS_USERNAME')PASSWORD = config.get('OPENSTACK','OS_PASSWORD')TENANT_NAME = config.get('OPENSTACK','OS_TENANT_NAME')AUTH_URL = config.get('OPENSTACK','OS_AUTH_URL')keystone = keystoneclient.Client(username=USERNAME,password=PASSWORD,tenant_name=TENANT_NAME,auth_url=AUTH_URL)glance_endpoint = keystone.service_catalog.url_for(service_type='image',endpoint_type='publicURL')

获取client对象：

glance = gclient.Client(glance_endpoint,token=keystone.auth_token)

列出上传的镜像：

images = glance.images.list()print "=========================================================================================================================="print "ID                                   Name                                Disk Format    Container Format  Size      Status"for i in images:    print ("%-35s %-35s %-15s %-15s %-10d %-4s")%(i.id,i.name,i.disk_format,i.container_format,i.size,i.status)

结果：

创建镜像：

from keystoneclient.v2_0 import client as keystoneclientimport glanceclientimport ConfigParserconfig = ConfigParser.ConfigParser()conf = open('openstack.conf','r')config.readfp(conf)USERNAME = config.get('OPENSTACK','OS_USERNAME')PASSWORD = config.get('OPENSTACK','OS_PASSWORD')TENANT_NAME = config.get('OPENSTACK','OS_TENANT_NAME')AUTH_URL = config.get('OPENSTACK','OS_AUTH_URL')keystone = keystoneclient.Client(username=USERNAME,password=PASSWORD,tenant_name=TENANT_NAME,auth_url=AUTH_URL)print keystone.auth_tokenglance_endpoint = keystone.service_catalog.url_for(service_type='image',endpoint_type='publicURL')# create and upload an imageglanceClient = glanceclient.Client('1',glance_endpoint,token=keystone.auth_token)img_url = "/home/stack/hao/cirros-0.3.0-x86_64-disk.img"with open(img_url,'rb') as img_file:    glanceClient.images.create(name='hao',is_public='True',disk_format='qcow2',container_format='bare',data=img_file)

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