原文链接 https://lingxiankong.github.io/2014-07-25-nova-image-create.html
注：以下为加速网络访问所做的原文缓存，经过重新格式化，可能存在格式方面的问题，或偶有遗漏信息，请以原文为准。
之前在CSDN写博客时有过对image-create的讲解，这几天在解决问题时，有了一些操作，记录在此，以备后查。
code version: havana
非后端卷启动，导出镜像
root@contrller:~# glance image-show test_vm
+---------------------------------------+--------------------------------------+
| Property | Value |
+---------------------------------------+--------------------------------------+
| Property 'base_image_ref' | 60ede79d-1b79-408a-b749-d6db3eb59cda |
| Property 'image_location' | snapshot |
| Property 'image_state' | available |
| Property 'image_type' | snapshot |
| Property 'instance_type_ephemeral_gb' | 0 |
| Property 'instance_type_flavorid' | 2 |
| Property 'instance_type_id' | 9 |
| Property 'instance_type_memory_mb' | 2048 |
| Property 'instance_type_name' | m1.small |
| Property 'instance_type_root_gb' | 20 |
| Property 'instance_type_rxtx_factor' | 1 |
| Property 'instance_type_swap' | 0 |
| Property 'instance_type_vcpus' | 1 |
| Property 'instance_uuid' | 03014d2d-c370-464e-ac42-c11c64f4f7e9 |
| Property 'os_type' | None |
| Property 'owner_id' | 45e6271fa2904be6b7fd97f43314e1d9 |
| Property 'user_id' | 4b1ff1de0d0c41edb908a1ce5be375ca |
| checksum | 5a0d1668e745eebaf3883a1e00e0b072 |
| container_format | bare |
| created_at | 2014-07-08T15:46:32 |
| deleted | False |
| disk_format | qcow2 |
| id | df8bb475-b3d6-4b36-8444-ac70c03d8799 |
| is_public | False |
| min_disk | 20 |
| min_ram | 0 |
| name | test_vm |
| owner | 45e6271fa2904be6b7fd97f43314e1d9 |
| protected | False |
| size | 13041664 |
| status | active |
| updated_at | 2014-07-08T15:46:40 |
+---------------------------------------+--------------------------------------+
非后端卷+1个用户卷，导出镜像
其实这种情况跟没有用户卷的虚拟机导出镜像一致，用户卷被忽略。
root@contrller:~# glance image-show test_vm_image
+---------------------------------------+--------------------------------------+
| Property | Value |
+---------------------------------------+--------------------------------------+
| Property 'base_image_ref' | 60ede79d-1b79-408a-b749-d6db3eb59cda |
| Property 'image_location' | snapshot |
| Property 'image_state' | available |
| Property 'image_type' | snapshot |
| Property 'instance_type_ephemeral_gb' | 0 |
| Property 'instance_type_flavorid' | 2 |
| Property 'instance_type_id' | 9 |
| Property 'instance_type_memory_mb' | 2048 |
| Property 'instance_type_name' | m1.small |
| Property 'instance_type_root_gb' | 20 |
| Property 'instance_type_rxtx_factor' | 1 |
| Property 'instance_type_swap' | 0 |
| Property 'instance_type_vcpus' | 1 |
| Property 'instance_uuid' | 03014d2d-c370-464e-ac42-c11c64f4f7e9 |
| Property 'os_type' | None |
| Property 'owner_id' | 45e6271fa2904be6b7fd97f43314e1d9 |
| Property 'user_id' | 4b1ff1de0d0c41edb908a1ce5be375ca |
| checksum | 2b3e4118a3ad691e3686a6e18628b034 |
| container_format | bare |
| created_at | 2014-07-08T19:53:10 |
| deleted | False |
| disk_format | qcow2 |
| id | 7a8c421d-0eea-4a93-a3b8-41ae751d9405 |
| is_public | False |
| min_disk | 20 |
| min_ram | 0 |
| name | test_vm_image |
| owner | 45e6271fa2904be6b7fd97f43314e1d9 |
| protected | False |
| size | 13041664 |
| status | active |
| updated_at | 2014-07-08T19:53:18 |
+---------------------------------------+--------------------------------------+
后端卷启动，导出镜像
此时镜像的size是0，同时记录了通过cinder从volume创建的snapshot链接。
使用Nova命令：
root@contrller:~# nova image-show 7a75e9a8-a5a8-49f5-ada0-a658ab327e31
+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Property | Value |
+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| status | ACTIVE |
| updated | 2014-07-19T15:27:55Z |
| metadata block_device_mapping | [{u'virtual_name': None, u'no_device': None, u'device_name': u'/dev/vda', u'volume_size': 1, u'snapshot_id': u'2dba63ed-86f6-448d-964b-7c7663c78fda', u'delete_on_termination': False}] |
| name | kong_1_image_2 |
| created | 2014-07-19T15:27:55Z |
| minDisk | 0 |
| metadata root_device_name | /dev/vda |
| progress | 100 |
| minRam | 0 |
| OS-EXT-IMG-SIZE:size | 0 |
| id | 7a75e9a8-a5a8-49f5-ada0-a658ab327e31 |
+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
使用Glance命令：
root@contrller:~# glance image-show 7a75e9a8-a5a8-49f5-ada0-a658ab327e31
+---------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Property | Value |
+---------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Property 'block_device_mapping' | [{"virtual_name": null, "no_device": null, "device_name": "/dev/vda", "volume_size": 1, "snapshot_id": "2dba63ed-86f6-448d-964b-7c7663c78fda", "delete_on_termination": false}] |
| Property 'root_device_name' | /dev/vda |
| created_at | 2014-07-19T15:27:55 |
| deleted | False |
| id | 7a75e9a8-a5a8-49f5-ada0-a658ab327e31 |
| is_public | False |
| min_disk | 0 |
| min_ram | 0 |
| name | kong_1_image_2 |
| owner | 45e6271fa2904be6b7fd97f43314e1d9 |
| protected | False |
| size | 0 |
| status | active |
| updated_at | 2014-07-19T15:27:55 |
+---------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+