The Images contain a virtual disk holding a bootable OS (Operating System).
Some images of standard GNU / Linux systems are provided.
They can be listed with the command openstack image list.
$ openstack image list
+--------------------------------------+----------------------------+--------+
| ID | Name | Status |
+--------------------------------------+----------------------------+--------+
| b89e2b27-e388-4cc7-b75c-c46e95dd2b1a | centos-8-x86_64 | active |
| 78b19f3a-1394-409c-a860-c9f76bc336f6 | ciros-0.5.2-x86_64 | active |
| 7f700c57-cdec-4d0c-b3c2-9a8136563955 | debian-10-buster-x86_64 | active |
| ba0fd214-4e8d-456e-8166-e5b9b2a83d2c | debian-9-stretch-x86_64 | active |
| b62d2239-5345-4067-8a45-117644b1c52f | debian-9.13.3-vgpu-x86_64 | active |
| b0b2b2b1-ecec-413e-b182-17c530509484 | nixos-18.03-x86_64 | active |
| 8ebf61ed-f060-4d92-83ad-49145bcef6a8 | ubuntu-18.04-bionic-x86_64 | active |
| 880c4d5b-a96b-4a41-bcfc-d9590d73641c | ubuntu-18.10-cosmic-x86_64 | active |
| 7105978d-4e99-41f6-a030-61fdb5d6a66c | ubuntu-19.04-disco-x86_64 | active |
| de3e88ed-ea89-4936-a8e9-2c3ef2c29425 | ubuntu-19.10-eoan-x86_64 | active |
| e07bc56f-548c-4287-bb7f-265dd854fba0 | ubuntu-20.04-focal-x86_64 | active |
+--------------------------------------+----------------------------+--------+
It is also possible to upload your own image by using openstack image create.
$ openstack image create \
--public \
--disk-format qcow2 \
--container-format bare \
--file /tmp/hurd-sid-i386.img \
hurd-sid-i386.img
To be started directly, the image must be cloud-ready (with cloud-init).