OpenStack Train : Add VM Images2019/10/25 |
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Add Virtual Machine images in Glance.
For example on here, create and add CentOS 7 virtual machine image. |
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| [1] |
Install KVM HyperVisor, refer to here.
It's unnecessarry to set Bridge networking on the section [2] of the link. |
| [2] | Create CentOS 7 image on Glance Host. |
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# create a disk image [root@dlp ~(keystone)]# qemu-img create -f qcow2 /var/kvm/images/centos7.img 10G
# install [root@dlp ~(keystone)]# virt-install \
Starting install...
--name centos7 \ --ram 2048 \ --disk path=/var/kvm/images/centos7.img,format=qcow2 \ --vcpus 2 \ --os-type linux \ --os-variant rhel7 \ --graphics none \ --console pty,target_type=serial \ --location 'http://ftp.iij.ad.jp/pub/linux/centos/7/os/x86_64/' \ --extra-args 'console=ttyS0,115200n8 serial' # installation starts
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| [2] |
After installation, change settings in virtual machine like follows and shutdown it.
* Delete or comment out the line [HWADDR] and [UUID] in [/etc/sysconfig/network-scripts/ifcfg-eth0] * Set [dhcp] for [BOOTPROTO] in [/etc/sysconfig/network-scripts/ifcfg-eth0] * Install [cloud-init] package and enable [cloud-init] service, and also add a user whose name is [centos] |
| [3] | Add the virtual image to Glance. |
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[root@dlp ~(keystone)]# openstack image create "CentOS7" --file /var/kvm/images/centos7.img --disk-format qcow2 --container-format bare --public +------------------+------------------------------------------------------------------------------+ | Field | Value | +------------------+------------------------------------------------------------------------------+ | checksum | adf98f346668ff3b67907a133ed7e5f3 | | container_format | bare | | created_at | 2019-10-25T04:44:36Z | | disk_format | qcow2 | | file | /v2/images/c742c8ed-9d0f-4555-9844-7f063a0b585f/file | | id | c742c8ed-9d0f-4555-9844-7f063a0b585f | | min_disk | 0 | | min_ram | 0 | | name | CentOS7 | | owner | 4f93fd3e6e184c859641b017115016a4 | | properties | os_hash_algo='sha512', os_hash_value='c163656fec8a6b0fb2f6106856565b2d0115...| | protected | False | | schema | /v2/schemas/image | | size | 1695154176 | | status | active | | tags | | | updated_at | 2019-10-25T04:44:45Z | | virtual_size | None | | visibility | public | +------------------+------------------------------------------------------------------------------+[root@dlp ~(keystone)]# openstack image list +--------------------------------------+---------+--------+ | ID | Name | Status | +--------------------------------------+---------+--------+ | c742c8ed-9d0f-4555-9844-7f063a0b585f | CentOS7 | active | +--------------------------------------+---------+--------+ |
| [4] | By the way, if you got an image from internet, it's OK to simply add it like follows. |
[root@dlp ~(keystone)]# wget cloud-images.ubuntu.com/releases/18.04/release/ubuntu-18.04-server-cloudimg-amd64.img -P /var/kvm/images [root@dlp ~(keystone)]# openstack image create "Ubuntu1804" --file /var/kvm/images/ubuntu-18.04-server-cloudimg-amd64.img --disk-format qcow2 --container-format bare --public +------------------+----------------------------------------------------------------------------------+ | Field | Value | +------------------+----------------------------------------------------------------------------------+ | checksum | 8f92c8890165448793cee1f03264165a | | container_format | bare | | created_at | 2019-04-11T02:32:59Z | | disk_format | qcow2 | | file | /v2/images/21050ab6-dbd7-487f-abf2-cabbab507abe/file | | id | 21050ab6-dbd7-487f-abf2-cabbab507abe | | min_disk | 0 | | min_ram | 0 | | name | Ubuntu1804 | | owner | e52584cf60234bc090c7d437b8ca7b62 | | properties | os_hash_algo='sha512', os_hash_value='3e1ef6f0d9f90a9a2c21e7c2976c1762e9765'...' | | protected | False | | schema | /v2/schemas/image | | size | 343736320 | | status | active | | tags | | | updated_at | 2019-04-11T02:33:02Z | | virtual_size | None | | visibility | public | +------------------+----------------------------------------------------------------------------------+ |
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