OpenStack Ussuri : Add VM images to Glance2020/06/07 |
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Add Virtual Machine images to Glance.
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| [1] |
Install KVM HyperVisor on Compute Host, refer to here.
It's unnecessarry to set Bridge networking on the section [2] of the link. |
| [2] | For example, Create a Virtual Machine image of ubuntu 20.04. |
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# create a disk image root@dlp ~(keystone)# qemu-img create -f qcow2 /var/kvm/images/ubuntu2004.img 10G
# install root@dlp ~(keystone)# virt-install \
--name ubuntu2004 \ --ram 2048 \ --disk path=/var/kvm/images/ubuntu2004.img,format=qcow2 \ --vcpus 2 \ --os-type linux \ --os-variant ubuntu20.04 \ --network network=default \ --graphics none \ --console pty,target_type=serial \ --location 'http://archive.ubuntu.com/ubuntu/dists/focal/main/installer-amd64/' \ --extra-args 'console=ttyS0,115200n8 serial'
Starting install...
# installation starts
# after finishing installation, back to KVM Host and shutdown VM root@dlp ~(keystone)# virsh shutdown ubuntu2004
# mount the disk image of the VM root@dlp ~(keystone)# guestmount -d ubuntu2004 -i /mnt
# enable getty@ttyS0.service root@dlp ~(keystone)# ln -s /mnt/lib/systemd/system/getty@.service /mnt/etc/systemd/system/getty.target.wants/getty@ttyS0.service # unmount and start root@dlp ~(keystone)# umount /mnt root@dlp ~(keystone)# virsh start ubuntu2004 --console
# configure some settings on GuestOS root@ubuntu:~# apt update root@ubuntu:~# apt -y install ssh cloud-init linux-virtual pollinate
root@ubuntu:~#
vi /etc/default/grub # line 10: change like follows GRUB_DEFAULT=0 GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=0 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT=" console=tty1 console=ttyS0 "GRUB_CMDLINE_LINUX="" # line 34,35: comment out # GRUB_TERMINAL=serial# GRUB_SERIAL_COMMAND="serial --unit=0 --speed=115200 --word=8 --parity=no --stopp=1"
root@ubuntu:~#
update-grub
root@ubuntu:~#
vi /etc/cloud/cloud.cfg # line 13: add # only the case you'd like to allow SSH password authentication
ssh_pwauth: true
# line 94: change # only the case if you'd like to allow [ubuntu] user to use SSH password auth default_user: name: ubuntu lock_passwd: False
root@ubuntu:~#
systemctl enable serial-getty@ttyS0.service
# shutdown to finish settings root@ubuntu:~# shutdown -h now
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| [3] | Add the virtual image to Glance. |
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root@dlp ~(keystone)# openstack image create "Ubuntu2004" --file /var/kvm/images/ubuntu2004.img --disk-format qcow2 --container-format bare --public +------------------+-------------------------------------------------------------------------------+ | Field | Value | +------------------+-------------------------------------------------------------------------------+ | checksum | 8112509b5fda156387336244b130f1eb | | container_format | bare | | created_at | 2020-06-04T03:38:13Z | | disk_format | qcow2 | | file | /v2/images/de51f2d9-aa58-4a34-87d6-857451599d9a/file | | id | de51f2d9-aa58-4a34-87d6-857451599d9a | | min_disk | 0 | | min_ram | 0 | | name | Ubuntu2004 | | owner | 3227cdd34d5c4d9c97eeb8f0dfdf5d0e | | properties | os_hash_algo='sha512', os_hash_value='cd0c29d9fa03a0cad6e265ed4829ba3c27e8... | | protected | False | | schema | /v2/schemas/image | | size | 3137404928 | | status | active | | tags | | | updated_at | 2020-06-04T03:38:30Z | | visibility | public | +------------------+-------------------------------------------------------------------------------+root@dlp ~(keystone)# openstack image list +--------------------------------------+------------+--------+ | ID | Name | Status | +--------------------------------------+------------+--------+ | de51f2d9-aa58-4a34-87d6-857451599d9a | Ubuntu2004 | 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/20.04/release/ubuntu-20.04-server-cloudimg-amd64.img -P /var/kvm/images
openstack image create "Ubuntu2004-Official" --file /var/kvm/images/ubuntu-20.04-server-cloudimg-amd64.img --disk-format qcow2 --container-format bare --public +------------------+----------------------------------------------------------------------------------------------+ | Field | Value | +------------------+----------------------------------------------------------------------------------------------+ | checksum | be096b5b3c1a28f9416deed0253ad3e2 | | container_format | bare | | created_at | 2020-06-04T03:43:24Z | | disk_format | qcow2 | | file | /v2/images/ecfb5b90-eb90-436e-b853-16ede5f55bda/file | | id | ecfb5b90-eb90-436e-b853-16ede5f55bda | | min_disk | 0 | | min_ram | 0 | | name | Ubuntu2004-Official | | owner | 3227cdd34d5c4d9c97eeb8f0dfdf5d0e | | properties | os_hash_algo='sha512', os_hash_value='1cbc97f05e9de86ea571dd154b855dd217de51905367e9599c1... | | protected | False | | schema | /v2/schemas/image | | size | 533856256 | | status | active | | tags | | | updated_at | 2020-06-04T03:43:27Z | | visibility | public | +------------------+----------------------------------------------------------------------------------------------+ |
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