OpenStack Caracal : Add VM Images2024/08/06 |
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Add Virtual Machine images in Glance. |
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| [1] |
Install KVM HyperVisor, refer to here. |
| [2] | Create a CentOS Stream 9 image on Glance service Host. Download the ISO image of CentOS Stream 9 first into a directory before it. |
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# create a disk image [root@dlp ~(keystone)]# qemu-img create -f qcow2 /var/kvm/images/centos-st9.img 10G
# install [root@dlp ~(keystone)]# virt-install \
--name centos-st9 \ --ram 4096 \ --disk path=/var/kvm/images/centos-st9.img,format=qcow2 \ --vcpus 2 \ --os-variant centos-stream9 \ --network network=default \ --graphics none \ --console pty,target_type=serial \ --location /home/CentOS-Stream-9-latest-x86_64-dvd1.iso \ --extra-args 'console=ttyS0,115200n8'
Starting install...
# after installing OS, login to the VM and configure necessary settings
CentOS Stream 9
Kernel 5.14.0-419.el9.x86_64 on an x86_64
Activate the web console with: systemctl enable --now cockpit.socket
localhost login: root
[root@localhost ~]# dnf -y install cloud-init openssh-server
[root@localhost ~]#
vi /etc/cloud/cloud.cfg # line 16 : if you like to allow SSH password auth, change to [1] ssh_pwauth: true # line 96, 97 : change to [centos] as default user # if you'd like to allow SSH password auth to the user, chage like follows system_info: default_user: name: centos lock_passwd: false # remove existing interface [root@localhost ~]# nmcli device ]DEVICE TYPE STATE CONNECTION enp1s0 ethernet connected enp1s0 lo loopback unmanaged --
[root@localhost ~]#
nmcli connection del enp1s0 Connection 'enp1s0' (81c5724e-b006-364b-9715-b4e4bc227325) successfully deleted. # finally, undefine the VM [root@dlp ~(keystone)]# virsh undefine centos-st9 |
| [3] | Add the virtual image to Glance. |
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[root@dlp ~(keystone)]# openstack image create "CentOS-Stream9" --file /var/kvm/images/centos-st9.img --disk-format qcow2 --container-format bare --public +------------------+-----------------------------------------------------------------------------+ | Field | Value | +------------------+-----------------------------------------------------------------------------+ | container_format | bare | | created_at | 2024-08-06T00:24:49Z | | disk_format | qcow2 | | file | /v2/images/cfa9783d-ca91-4e3b-8016-81e3336bd5f0/file | | id | cfa9783d-ca91-4e3b-8016-81e3336bd5f0 | | min_disk | 0 | | min_ram | 0 | | name | CentOS-Stream9 | | owner | b62e60c6d4b7406a90eee2f2d9c45917 | | properties | os_hidden='False', owner_specified.openstack.md5='', owner_specified.ope... | | protected | False | | schema | /v2/schemas/image | | status | queued | | tags | | | updated_at | 2024-08-06T00:24:49Z | | visibility | public | +------------------+-----------------------------------------------------------------------------+[root@dlp ~(keystone)]# openstack image list +--------------------------------------+----------------+--------+ | ID | Name | Status | +--------------------------------------+----------------+--------+ | cfa9783d-ca91-4e3b-8016-81e3336bd5f0 | CentOS-Stream9 | active | +--------------------------------------+----------------+--------+ |
| [4] | By the way, if you got an image from internet, it's OK to simply add it like follows. |
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[root@dlp ~(keystone)]#
[root@dlp ~(keystone)]# wget http://cloud-images.ubuntu.com/releases/24.04/release/ubuntu-24.04-server-cloudimg-amd64.img
openstack image create "Ubuntu2404-Official" --file ubuntu-24.04-server-cloudimg-amd64.img --disk-format qcow2 --container-format bare --public +------------------+-----------------------------------------------------------+ | Field | Value | +------------------+-----------------------------------------------------------+ | container_format | bare | | created_at | 2024-05-21T00:18:05Z | | disk_format | qcow2 | | file | /v2/images/7620a182-99f2-4132-9c6e-4b2da962b241/file | | id | 7620a182-99f2-4132-9c6e-4b2da962b241 | | min_disk | 0 | | min_ram | 0 | | name | Ubuntu2404 | | owner | 9c5145f76fd84324bdd2b1b61658a282 | | properties | os_hidden='False', owner_specified.openstack.md5='', | | | owner_specified.openstack.object='images/Ubuntu2404', | | | owner_specified.openstack.sha256='' | | protected | False | | schema | /v2/schemas/image | | status | queued | | tags | | | updated_at | 2024-05-21T00:18:05Z | | visibility | public | +------------------+-----------------------------------------------------------+ |
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