Openstack glance Adding/Deleting Images

by Anish


Posted on Sunday June 24



Openstack Image Service

The Image service (glance) enables users to discover, register, and retrieve virtual machine

Source the project credentials to gain access to project-only CLI commands:

. project-openrc

Download the Cirros for Testing Image

wget http://download.cirros-cloud.net/0.4.0/cirros-0.4.0-x86_64-disk.img

Upload the image to the Image service using the QCOW2 disk format, bare container format, and public visibility so all projects can access it:

openstack image create "cirros"  --file cirros-0.4.0-x86_64-disk.img --disk-format qcow2 --container-format bare --public

Upload the image to the Image service using the vmdk disk format, ova container format, and public visibility so all projects can access it

openstack image create  centos-7-repo-mirror --container-format ova  --disk-format vmdk --file centos7-mirror-disk1.vmdk --public

Upload the image to the Image service using the ISO disk format, bare container format, and public visibility so all projects can access it

openstack image create  rhel-workstation-7.3 --public  --container-format bare --disk-format iso --file rhel-workstation-7.3-x86_64-dvd.iso  --public

Openstack List Images

openstack image list 
+--------------------------------------+-----------------------------+--------+
| ID                                   | Name                        | Status |
+--------------------------------------+-----------------------------+--------+
| 50fc1d8b-7f7f-41d5-9ec8-8762d377a612 | CentOS-7-GenericCloud.qcow2 | active |
| 8758f8c4-f83b-4ecf-b833-9b6962bd894a | centos-7                    | active |
| 817a63fc-b4e7-4e75-b230-5d27a78ee56a | centos-7-repo-mirror        | active |
| f056158b-0750-4623-b42a-723dbedee99f | cirros                      | active |
| bee327db-797c-4014-8029-98ac7c21c6f1 | rhel-server-7.3-x86_64      | active |
| 61002bcf-c5bb-4c9e-81f5-b7ab184bddb7 | rhel-workstation-7.3        | active |
| 0b99acc1-b84b-46f3-a43a-aaf573a12a19 | rhel7-qcow2                 | active |
+--------------------------------------+-----------------------------+--------+

Openstack delete Images

openstack image delete 50fc1d8b-7f7f-41d5-9ec8-8762d377a612 

Openstack delete protected Images

openstack image set --unprotected 50fc1d8b-7f7f-41d5-9ec8-8762d377a612
openstack image delete 50fc1d8b-7f7f-41d5-9ec8-8762d377a612

Openstack glance upload image with default disk requirement

openstack image create  rhel-workstation-7.3 --public  --container-format bare --disk-format iso --file rhel-workstation-7.3-x86_64-dvd.iso  --public --protected --min-disk 20

Glance Disks and Container Formats

Disk Format

Container Format

aki

Amazon Kernel Package

aki

Amazon Kernel Package

ami

Amazon machine image

ami

Amazon machine image

ari

Amazon ramdisk Image

ari

Amazon ramdisk Image

iso

Optical disks

bare

The image does not have a container or metadata envelope. It is safe to specify bare as the container format if you are unsure.

qcow2

 

Qemu Emulator

Docker

A docker container format.

 

raw

 

An unstructured disk image format

Usually without Extenstions

ova

 

An OVF package in a tarfile.

 

vdi

Oracle VirtualBox

ovf

The OVF container format.

 

vhd

Used by Oracle Virtual Box, vmWare,Xen

 

vhdx

Enhanced version of vhd format

 

vmdk

Common disk format

 

 

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