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OpenStack Ocata : Add VM Images
2017/02/27 |
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Add Virtual Machine images in Glance.
For example on here, add CentOS 7 virtual machine image. |
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| [1] | 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 * If you'd like to connect to Instances with SSH key-pair, install "cloud-init" package and enable "cloud-init" service. |
| [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 | 3d6ecc5c0f2b0cb35c60fb6957e903ce | | container_format | bare | | created_at | 2017-02-28T06:48:22Z | | disk_format | qcow2 | | file | /v2/images/c8f1484e-b877-4447-b6ce-f1baa6bef785/file | | id | c8f1484e-b877-4447-b6ce-f1baa6bef785 | | min_disk | 0 | | min_ram | 0 | | name | CentOS7 | | owner | c654e2e098b14356b97b6e613775cc54 | | protected | False | | schema | /v2/schemas/image | | size | 1341784064 | | status | active | | tags | | | updated_at | 2017-02-28T06:48:28Z | | virtual_size | None | | visibility | public | +------------------+------------------------------------------------------+[root@dlp ~(keystone)]# openstack image list +--------------------------------------+---------+--------+ | ID | Name | Status | +--------------------------------------+---------+--------+ | c8f1484e-b877-4447-b6ce-f1baa6bef785 | CentOS7 | 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/16.04/release/ubuntu-16.04-server-cloudimg-amd64-disk1.img -P /var/kvm/images
openstack image create "Ubuntu1604" --file /var/kvm/images/ubuntu-16.04-server-cloudimg-amd64-disk1.img --disk-format qcow2 --container-format bare --public +------------------+------------------------------------------------------+ | Field | Value | +------------------+------------------------------------------------------+ | checksum | fc5ad26274fcc42cfa32d97308613432 | | container_format | bare | | created_at | 2017-02-24T01:44:21Z | | disk_format | qcow2 | | file | /v2/images/3113fc28-fa1f-4221-909e-a4fc5bdb8d6a/file | | id | 3113fc28-fa1f-4221-909e-a4fc5bdb8d6a | | min_disk | 0 | | min_ram | 0 | | name | Ubuntu1604 | | owner | 3424019a88f34894b22058d6e15a8d35 | | protected | False | | schema | /v2/schemas/image | | size | 324141056 | | status | active | | tags | | | updated_at | 2017-02-24T01:44:23Z | | virtual_size | None | | visibility | public | +------------------+------------------------------------------------------+ |