• openstack-glance API 镜像管理的部分实现和样例


    感谢朋友支持本博客,欢迎共同探讨交流,因为能力和时间有限。错误之处在所难免。欢迎指正。
    假设转载,请保留作者信息。
    博客地址:http://blog.csdn.net/qq_21398167

    原博文地址:http://blog.csdn.net/qq_21398167/article/details/46422629

    Openstack-glance API

    为了方便,可先自己定义一个函数 放在credentials.py里面

    # vi credentials.py

    #!/usr/bin/env python

    import os

    def get_keystone_creds():

       d = {}

       d['username'] =os.environ['OS_USERNAME']

       d['password'] =os.environ['OS_PASSWORD']

       d['auth_url'] =os.environ['OS_AUTH_URL']

       d['tenant_name'] = os.environ['OS_TENANT_NAME']

       return d

    def get_nova_creds():

       d = {}

       d['username'] =os.environ['OS_USERNAME']

       d['api_key'] =os.environ['OS_PASSWORD']

       d['auth_url'] =os.environ['OS_AUTH_URL']

       d['project_id']= os.environ['OS_TENANT_NAME']

       return d

     

    使用API

    import keystoneclient.v2_0.client as ksclient

    import glanceclient

    import glanceclient.v2.client as glclient

    from credentials import get_keystone_creds

     

    1)查询虚拟机信息  

    images = glance.images.list() 获取img的队列

    images.next() 依次输出

    部分代码:

    creds = get_keystone_creds()

    keystone = ksclient.Client(**creds)

    glance_endpoint=keystone.service_catalog.url_for(service_type='image',endpoint_type='publicURL')

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

    images = glance.images.list()

    print images

    print images.next()

     

    (2)上传img

    with open(img_url) as fimage: #img_url镜像存放路径

              glance.images.create(name="cirros_zy",is_public=True,disk_format="qcow2",container_format="bare",data=fimage)

     

     

    部分代码:

    keystone = ksclient.Client(**creds)

    glance_endpoint=keystone.service_catalog.url_for(service_type='image',endpoint_type='publicURL')

    glance=glanceclient.Client('1',glance_endpoint,token=keystone.auth_token)

    with open(img_url) as fimage:

    glance.images.create(name="cirros_zy",is_public=True,disk_format="qcow2",container_format="bare",data=fimage)

    3)删除img

    glance.images.delete(image_id)

     

    4)成员绑定

    glance.image_members.create(image_id,mem_id,can_share=True)

     

    5)成员删除

    glance.image_members.delete(image_id,mem_id)

     

    6img下载

       因为glance v2没有支持镜像下载的API 所以直接使用命令行的方式下载

    代码例如以下:

    Import os

    string_1 = 'glance image-download --file ' + image_url +' ' + image_id  

    os.system(string_1)

  • 相关阅读:
    转一篇:arp欺骗的原理和防御
    CF1209A Paint the Numbers
    字符串专题之KMP算法
    CF1209B Koala and Lights
    CF1217A Creating a Character
    CF1217B Zmei Gorynich
    各种模板
    开通博客园拉..
    汇编语言程序设计学习笔记(第一遍学习)第4节:汇编就像HTML一样简单
    我也要学C语言第二十章:结构体类型变量,结构体数组
  • 原文地址:https://www.cnblogs.com/zsychanpin/p/6783331.html
Copyright © 2020-2023  润新知