How to Add Cloud Image on Openstack

Glance is an image service which provides discovering, registering, retrieving for disk and server images. The OpenStack Glance is a central repository for virtual images.

Glance supports the following image formats:

• raw (unstructured disk image format)
• qcow2 (Qemu / KVM, supports Copy on Write)
• iso (format for the data contents of an optical disc. e.g. CDROM)
• vhd (common disk format used by virtual machine monitors from VMware, Xen, Microsoft, VirtualBox, and others
• vdi (Qemu / VirtualBox)
• vmdk (VMware)
• etc.

Default Login Username

Below is the default login username for the instance/server created from the newly added image:

Username Debian: debian
Username Fedora: fedora
Username Ubuntu: ubuntu
Username CentOS: centos
Username OpenSUSE: opensuse
Username RHEL: cloud-user
Username Cirros: cirros

Cirros Cloud Image

To add a CirrOS image, follow the command below:

wget http://download.cirros-cloud.net/0.6.1/cirros-0.6.1-x86_64-disk.img

openstack image create --disk-format qcow2 \
  --container-format bare --public \
  --file ./cirros-0.6.1-x86_64-disk.img cirros-0.6.1

Ubuntu Cloud Image

To add a Ubuntu image, follow the command below:

# Ubuntu Focal
wget https://cloud-images.ubuntu.com/focal/current/focal-server-cloudimg-amd64.img

openstack image create --disk-format qcow2 \
  --container-format bare --public --protected \
  --file ./focal-server-cloudimg-amd64.img Ubuntu-20.04
  
# Ubuntu Jammy
wget https://cloud-images.ubuntu.com/jammy/current/jammy-server-cloudimg-amd64.img

openstack image create --disk-format qcow2 \
  --container-format bare --public --protected \
  --file ./jammy-server-cloudimg-amd64.img Ubuntu-22.04

CentOS Cloud Image

To add a CentOS image, follow the command below:

wget https://cloud.centos.org/centos/8-stream/x86_64/images/CentOS-Stream-GenericCloud-8-20220913.0.x86_64.qcow2

openstack image create --disk-format qcow2 \
  --container-format bare --public --protected \
  --file ./CentOS-Stream-GenericCloud-8-20220913.0.x86_64.qcow2 CentOS-8

Fedora Cloud Image

To add a Fedora image, follow the command below:

wget https://download.fedoraproject.org/pub/fedora/linux/releases/37/Cloud/x86_64/images/Fedora-Cloud-Base-37-1.7.x86_64.qcow2

openstack image create --disk-format qcow2 \
  --container-format bare --public \
  --file ./Fedora-Cloud-Base-37-1.7.x86_64.qcow2 Fedora-37

Debian Cloud Image

To add a Debian image, follow the command below:

wget https://cloud.debian.org/images/cloud/OpenStack/current-10/debian-10-openstack-amd64.qcow2

openstack image create --disk-format qcow2 \
  --container-format bare \
  --file ./debian-10-openstack-amd64.qcow2 Debian-10

OpenSUSE Cloud Image

To add a OpenSUSE image, follow the command below:

wget https://download.opensuse.org/pub/opensuse/distribution/leap/15.4/appliances/openSUSE-Leap-15.4-JeOS.x86_64-15.4-OpenStack-Cloud-Current.qcow2 -O openSUSE-Leap-15.4.x86_64.qcow2

openstack image create --disk-format qcow2 \
  --container-format bare --public \
  --property os_type=linux \
  --property os_admin_user=opensuse \
  --file openSUSE-Leap-15.4.x86_64.qcow2 openSUSE-15.4

RHEL Cloud Image

Register to redhat.com and login. Download Red Hat cloud image with qcow2 format.

openstack image create --disk-format qcow2 \
 --container-format bare \
 --file ./rhel-8.7-x86_64-kvm.qcow2 rhel-8

Reference

Get images — Virtual Machine Image Guide documentation