OpenStack-命令指南-Glance.md 8.6 KB
OpenStack_Glance
Glance 运维
Glance是OpenStack的镜像服务。
默认Glance镜像上传后在/var/lib/glance/images目录
镜像相关命令
[root@controller ~]# openstack image --help
Command "image" matches:
image create # 创建镜像
image delete # 删除镜像
image list # 镜像列表
image set # 更新镜像
image show # 查看镜像信息
image unset
镜像管理
创建镜像
创建一个镜像，需要提供镜像名、源文件、镜像格式等信息。
[root@controller ~]# openstack image create --disk-format qcow2 --container-format bare --file /opt/openstack/images/cirros-0.3.4-x86_64-disk.img --public cirros
+------------------+------------------------------------------------------+
| Field | Value |
+------------------+------------------------------------------------------+
| checksum | ee1eca47dc88f4879d8a229cc70a07c6 |
| container_format | bare |
| created_at | 2021-03-19T13:01:20Z |
| disk_format | qcow2 |
| file | /v2/images/9fdae471-668e-4341-b85c-5aa3a8e2db0d/file |
| id | 9fdae471-668e-4341-b85c-5aa3a8e2db0d |
| min_disk | 0 |
| min_ram | 0 |
| name | cirros |
| owner | 57e7eb094ace4170ab2c4792c23ee6e7 |
| protected | False |
| schema | /v2/schemas/image |
| size | 13287936 |
| status | active |
| tags | |
| updated_at | 2021-03-19T13:01:20Z |
| virtual_size | None |
| visibility | public |
+------------------+------------------------------------------------------+
查看镜像列表
[root@controller ~]# openstack image list
+--------------------------------------+--------+--------+
| ID | Name | Status |
+--------------------------------------+--------+--------+
| 9fdae471-668e-4341-b85c-5aa3a8e2db0d | cirros | active |
+--------------------------------------+--------+--------+
查看镜像
[root@controller ~]# openstack image show cirros
+------------------+------------------------------------------------------+
| Field | Value |
+------------------+------------------------------------------------------+
| checksum | ee1eca47dc88f4879d8a229cc70a07c6 |
| container_format | bare |
| created_at | 2021-03-19T13:01:20Z |
| disk_format | qcow2 |
| file | /v2/images/9fdae471-668e-4341-b85c-5aa3a8e2db0d/file |
| id | 9fdae471-668e-4341-b85c-5aa3a8e2db0d |
| min_disk | 0 |
| min_ram | 0 |
| name | cirros |
| owner | 57e7eb094ace4170ab2c4792c23ee6e7 |
| protected | False |
| schema | /v2/schemas/image |
| size | 13287936 |
| status | active |
| tags | |
| updated_at | 2021-03-19T13:01:20Z |
| virtual_size | None |
| visibility | public |
+------------------+------------------------------------------------------+
删除镜像
# 上传镜像
[root@controller ~]# openstack image create --disk-format qcow2 --container-format bare --file /opt/openstack/images/cirros-0.3.4-x86_64-disk.img --public cirros_2
+------------------+------------------------------------------------------+
| Field | Value |
+------------------+------------------------------------------------------+
| checksum | ee1eca47dc88f4879d8a229cc70a07c6 |
| container_format | bare |
| created_at | 2021-03-19T13:05:11Z |
| disk_format | qcow2 |
| file | /v2/images/522d0fd7-5fc8-402f-91f5-46daf94e65cd/file |
| id | 522d0fd7-5fc8-402f-91f5-46daf94e65cd |
| min_disk | 0 |
| min_ram | 0 |
| name | cirros_2 |
| owner | 57e7eb094ace4170ab2c4792c23ee6e7 |
| protected | False |
| schema | /v2/schemas/image |
| size | 13287936 |
| status | active |
| tags | |
| updated_at | 2021-03-19T13:05:11Z |
| virtual_size | None |
| visibility | public |
+------------------+------------------------------------------------------+
# 删除镜像
[root@controller ~]# openstack image delete cirros_2
# 查看列表，查不到cirros_2
[root@controller ~]# openstack image list
+--------------------------------------+--------+--------+
| ID | Name | Status |
+--------------------------------------+--------+--------+
| 9fdae471-668e-4341-b85c-5aa3a8e2db0d | cirros | active |
+--------------------------------------+--------+--------+
镜像运维
修改镜像元数据
使用openstack image set命令来修改镜像的元数据
[root@controller ~]# openstack image set --min-disk 1 cirros # 修改最小启动硬盘1GB
[root@controller ~]# openstack image show cirros
+------------------+------------------------------------------------------+
| Field | Value |
+------------------+------------------------------------------------------+
| checksum | ee1eca47dc88f4879d8a229cc70a07c6 |
| container_format | bare |
| created_at | 2021-03-19T13:01:20Z |
| disk_format | qcow2 |
| file | /v2/images/9fdae471-668e-4341-b85c-5aa3a8e2db0d/file |
| id | 9fdae471-668e-4341-b85c-5aa3a8e2db0d |
| min_disk | 1 # 👈 修改成功了 |
| min_ram | 0 |
| name | cirros |
| owner | 57e7eb094ace4170ab2c4792c23ee6e7 |
| protected | False |
| schema | /v2/schemas/image |
| size | 13287936 |
| status | active |
| tags | |
| updated_at | 2021-03-19T13:09:35Z |
| virtual_size | None |
| visibility | public |
+------------------+------------------------------------------------------+