https://www.ibm.com/developerworks/cn/cloud/library/1604-openstack-host-aggregate/
问题描述： 生产区一期环境增加 4 台计算结点，希望被大数据租户独占 1. 该大数据用户创建的虚拟机必须被调度到这 4 个计算结点 2. 其他租户创建虚拟机禁止调度到这 4 台机器 标黄的 需要自行根据情况修改 解决方案： 创建 ha 分区 1. 将 4 台计算结点置为一个 ha 分区 [root@controller-1 ~]# nova aggregate-create bigdata+----+---------+-------------------+-------+----------+| Id | Name | Availability Zone | Hosts | Metadata |+----+---------+-------------------+-------+----------+| 9 | bigdata | - | | |+----+---------+-------------------+-------+----------+ 1. 将 4 台计算结点加入这个 ha 分区 [root@controller-1 ~]# nova aggregate-add-host 9 compute-2 Host compute-3 has been successfully added for aggregate 9+----+---------+-------------------+-------------+----------+| Id | Name | Availability Zone | Hosts | Metadata |+----+---------+-------------------+-------------+----------+| 9 | bigdata | - | 'compute-2' | |+----+---------+-------------------+-------------+----------+ （执行 4 次） 1. 增加 ha 区调度属性 [root@controller-1 ~]# nova aggregate-set-metadata 9 bigdata=yes Metadata has been successfully updated for aggregate 9.+----+---------+-------------------+-------------+---------------+| Id | Name | Availability Zone | Hosts | Metadata |+----+---------+-------------------+-------------+---------------+| 9 | bigdata | - | 'compute-2' | 'bigdata=yes' |+----+---------+-------------------+-------------+---------------+ bigdata=yes 是写死的，不能修改 4. 增加调度属性 2 ： [root@controller-1 ~]# nova aggregate-set-metadata 9 filter_tenant_id= 7b597e8e774c41d9bcc92d494c0ad6ef Metadata has been successfully updated for aggregate 9.+----+---------+-------------------+-------------+--------------------------------------------------------------------+| Id | Name | Availability Zone | Hosts | Metadata |+----+---------+-------------------+-------------+--------------------------------------------------------------------+| 9 | bigdata | - | 'compute-2' | 'bigdata=yes', 'filter_tenant_id=7b597e8e774c41d9bcc92d494c0ad6ef' |+----+---------+-------------------+-------------+--------------------------------------------------------------------+ filter_tenant_id= 7b597e8e774c41d9bcc92d494c0ad6ef 等号后面的填写大数据租户的 tenant-id 此时， ha 分区创建完毕 修改调度策略 1. 修改三台控制结点的 nova.conf 修改： scheduler_default_filters=RetryFilter,AvailabilityZoneFilter,RamFilter,CoreFilter,DiskFilter,ComputeFilter,ComputeCapabilitiesFilter,ImagePropertiesFilter,ServerGroupAntiAffinityFilter,ServerGroupAffinityFilter 为： scheduler_default_filters=RetryFilter,AvailabilityZoneFilter,RamFilter,ComputeFilter, ImagePropertiesFilter,ServerGroupAntiAffinityFilter,ServerGroupAffinityFilter,AggregateMultiTenancyIsolation,AggregateInstanceExtraSpecsFilter 1. 重启 nova-schedulerservice openstack-nova-scheduler restart 创建大数据组独享的 flavor （模板） 1. 创建一个私有的模板（用 admin 租户的身份创建） [root@controller-1 ~]# nova flavor-create lihao1234 auto 1024 20 1 --is-public false+--------------------------------------+-----------+-----------+------+-----------+------+-------+-------------+-----------+| ID | Name | Memory_MB | Disk | Ephemeral | Swap | VCPUs | RXTX_Factor | Is_Public |+--------------------------------------+-----------+-----------+------+-----------+------+-------+-------------+-----------+| e5a55a80-015e-4aed-96cc-d6ca42574cf1 | lihao1234 | 1024 | 20 | 0 | | 1 | 1.0 | False |+--------------------------------------+-----------+-----------+------+-----------+------+-------+-------------+-----------+2. 将该模板给大数据租户使用 [root@controller-1 ~]# nova flavor-access-add e5a55a80-015e-4aed-96cc-d6ca42574cf1 7b597e8e774c41d9bcc92d494c0ad6ef +--------------------------------------+----------------------------------+| Flavor_ID | Tenant_ID |+--------------------------------------+----------------------------------+| e5a55a80-015e-4aed-96cc-d6ca42574cf1 | 7b597e8e774c41d9bcc92d494c0ad6ef |+--------------------------------------+----------------------------------+ 前者是创建的 flavor 的 id 后者是大数据租户的 tenant-id3. 将模板中置上调度参数 [root@controller-1 ~]# nova flavor-key e5a55a80-015e-4aed-96cc-d6ca42574cf1 set bigdata=yes 效果： 1. 用大数据账号，专用模板创建的虚拟机，一定且只会被调度到指定的 4 台主机上
2. 其他用户看不到特殊模板，且创建的虚拟机只能被调度到剩余的主机上，也就是说，原来的用户对该改造无感