openstack调整云主机实例类型大小 |
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修改配置文件
修改controller节点和compute节点nova.conf配置文件，添加调整类型大小的参数 controller节点设置参数如下所示 [root@controller ~]# crudini --set /etc/nova/nova.conf DEFAULT allow_resize_to_same_host True [root@controller ~]# crudini --set /etc/nova/nova.conf DEFAULT scheduler_default_filters RetryFilter,AvailabilityZoneFilter,RamFilter,ComputeFilter,ComputeCapabilitiesFilter, ImagePropertiesFilter,ServerGroupAntiAffinityFilter,ServerGroupAffinityFilter [root@controller ~]# systemctl restart openstack-nova*compute节点设置参数如下所示 [root@compute ~]# crudini --set /etc/nova/nova.conf DEFAULT allow_resize_to_same_host True [root@compute ~]# crudini --set /etc/nova/nova.conf DEFAULT scheduler_default_filters RetryFilter,AvailabilityZoneFilter,RamFilter,ComputeFilter,ComputeCapabilitiesFilter, ImagePropertiesFilter,ServerGroupAntiAffinityFilter,ServerGroupAffinityFilter [root@compute ~]# systemctl restart openstack-nova-compute 创建需要的云主机类型现有云主机硬盘和内存不满足使用，需要对现有云主机进行资源扩容，将内存扩容至2G，硬盘扩容至15G大小，类型名称为“centos1”首先创建一个新的云主机类型满足扩容资源的需求。通过命令创建新云主机类型 [root@controller ~]# openstack flavor create --disk 15 --ram 2048 --vcpus 2 centos1 +----------------------------+--------------------------------------+ | Field | Value | +----------------------------+--------------------------------------+ | OS-FLV-DISABLED:disabled | False | | OS-FLV-EXT-DATA:ephemeral | 0 | | disk | 15 | | id | 182eac11-33b4-4153-8f8f-42e67c67e8bf | | name | centos1 | | os-flavor-access:is_public | True | | properties | | | ram | 2048 | | rxtx_factor | 1.0 | | swap | | | vcpus | 2 | +----------------------------+--------------------------------------+查看当前云主机类型列表 [root@controller ~]# openstack flavor list +--------------------------------------+---------+------+------+-----------+-------+-----------+ | ID | Name | RAM | Disk | Ephemeral | VCPUs | Is Public | +--------------------------------------+---------+------+------+-----------+-------+-----------+ | 1 | centos | 1024 | 10 | 0 | 2 | True | | 182eac11-33b4-4153-8f8f-42e67c67e8bf | centos1 | 2048 | 15 | 0 | 2 | True | +--------------------------------------+---------+------+------+-----------+-------+-----------+查看云主机列表，通过命令查看云主机列表 [root@controller ~]# openstack server list +-------------------------+-------------+--------+-----------------+--------------+--------+ | ID | Name | Status | Networks | Image | Flavor | +-------------------------+-------------+--------+-----------------+--------------+--------+ | 7e424f14-eed1-44f5-a29a | cirros-test | ACTIVE | network-vlan= | cirros-0.3.4 | centos | -0b64749cbc4d 192.168.200.132 +-------------------------+-------------+--------+-----------------+--------------+--------+使用命令“openstack server resize”调整云主机类型 [root@controller ~]# openstack help server resize usage: openstack server resize [-h] [--flavor | --confirm | --revert] [--wait] Server (name or ID) optional arguments: -h, --help show this help message and exit --flavor Resize server to specified flavor --confirm Confirm server resize is complete --revert Restore server state before resize --wait Wait for resize to complete 调整云主机类型使用命令调整云主机“cirros-test”类型为centos1，使用--wait参数，在命令执行后，调整云主机需要一定时间，添加--wait参数后会在确认时回馈“complete” [root@controller ~]# openstack server resize --flavor centos1 --wait cirros-test Complete [root@controller ~]# openstack server list +-------------------------+-------------+---------------+-----------------+--------------+---------+ | ID | Name | Status | Networks | Image | Flavor | +-------------------------+-------------+---------------+-----------------+--------------+---------+ | 7e424f14-eed1-44f5-a29a | cirros-test | VERIFY_RESIZE | network-vlan= | cirros-0.3.4 | centos1 | -0b64749cbc4d 192.168.200.132 +-------------------------+-------------+---------------+-----------------+--------------+---------+在命令执行完毕后，返回“Complete”值时，通过命令查看云主机列表信息 [root@controller ~]# openstack server list +-------------------------+-------------+--------+-----------------+--------------+---------+ | ID | Name | Status | Networks | Image | Flavor | +-------------------------+-------------+--------+-----------------+--------------+---------+ | 7e424f14-eed1-44f5-a29a | cirros-test | ACTIVE | network-vlan= | cirros-0.3.4 | centos1 | -0b64749cbc4d 192.168.200.132 +-------------------------+-------------+--------+-----------------+--------------+---------+ |
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