Ubuntu 20.04
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OpenStack Yoga : Add VM images to Glance
2022/04/04
 
Add Virtual Machine images to Glance.
[1] For example, Create a Virtual Machine image of ubuntu 20.04.
# download the official disk image

root@dlp ~(keystone)#
wget http://cloud-images.ubuntu.com/releases/20.04/release/ubuntu-20.04-server-cloudimg-amd64.img
# if you'd like to change settings in the image, configure like follows
# mount disk image

root@dlp ~(keystone)#
modprobe nbd

root@dlp ~(keystone)#
qemu-nbd --connect=/dev/nbd0 ubuntu-20.04-server-cloudimg-amd64.img

root@dlp ~(keystone)#
mount /dev/nbd0p1 /mnt

root@dlp ~(keystone)#
vi /mnt/etc/cloud/cloud.cfg
# line 13 : add
# only the case you'd like to allow SSH password authentication

ssh_pwauth: true
# line 101: change
# only the case if you'd like to allow [ubuntu] user to use SSH password auth

system_info:
   # This will affect which distro class gets used
   distro: ubuntu
   # Default user name + that default users groups (if added/used)
   default_user:
     name: ubuntu
     lock_passwd: False
     gecos: Ubuntu

root@dlp ~(keystone)#
umount /mnt

root@dlp ~(keystone)#
qemu-nbd --disconnect /dev/nbd0p1

/dev/nbd0p1 disconnected
# add image to Glance

root@dlp ~(keystone)#
openstack image create "Ubuntu2004" --file ubuntu-20.04-server-cloudimg-amd64.img --disk-format qcow2 --container-format bare --public

+------------------+-----------------------------------------------------------+
| Field            | Value                                                     |
+------------------+-----------------------------------------------------------+
| container_format | bare                                                      |
| created_at       | 2022-04-01T00:40:47Z                                      |
| disk_format      | qcow2                                                     |
| file             | /v2/images/53f6415a-1f98-485f-be0b-3f80edf523df/file      |
| id               | 53f6415a-1f98-485f-be0b-3f80edf523df                      |
| min_disk         | 0                                                         |
| min_ram          | 0                                                         |
| name             | Ubuntu2004                                                |
| owner            | ddb7c08ba73a48eea040270d13a7b0cf                          |
| properties       | os_hidden='False', owner_specified.openstack.md5='',..... |
| protected        | False                                                     |
| schema           | /v2/schemas/image                                         |
| status           | queued                                                    |
| tags             |                                                           |
| updated_at       | 2022-04-01T00:40:47Z                                      |
| visibility       | public                                                    |
+------------------+-----------------------------------------------------------+

root@dlp ~(keystone)#
openstack image list

+--------------------------------------+------------+--------+
| ID                                   | Name       | Status |
+--------------------------------------+------------+--------+
| 53f6415a-1f98-485f-be0b-3f80edf523df | Ubuntu2004 | active |
+--------------------------------------+------------+--------+
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