CentOS 7
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OpenStack Juno : Add Images
2015/01/08
 
Add Virtual Machine images in Glance.
[1] Load environment variables first.
[root@dlp ~]#
unset SERVICE_TOKEN

[root@dlp ~]#
unset SERVICE_ENDPOINT

[root@dlp ~]#
vi ~/keystonerc
export OS_USERNAME=admin
export OS_PASSWORD=adminpassword
export OS_TENANT_NAME=admin
export OS_AUTH_URL=http://10.0.0.30:35357/v2.0/
export PS1='[\u@\h \W(keystone)]\$ '
[root@dlp ~]#
chmod 600 ~/keystonerc

[root@dlp ~]#
source ~/keystonerc

[root@dlp ~(keystone)]#
echo "source ~/keystonerc " >> ~/.bash_profile
# display status (it's OK if no errors are shown)

[root@dlp ~(keystone)]#
glance image-list 
+----+------+-------------+------------------+------+--------+
| ID | Name | Disk Format | Container Format | Size | Status |
+----+------+-------------+------------------+------+--------+
+----+------+-------------+------------------+------+--------+
[2] For example, Create a Virtual Machine image of CentOS 7 for adding.
# create a directory for disk image

[root@dlp ~(keystone)]#
mkdir -p /var/kvm/images
# create a disk image

[root@dlp ~(keystone)]#
qemu-img create -f qcow2 /var/kvm/images/centos7.img 10G
# install

[root@dlp ~(keystone)]#
virt-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'
Starting install...
# installation starts
[3]
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
[4] Add the virtual image to Glance.
[root@dlp ~(keystone)]#
glance image-create --name="CentOS7" --is-public=true --disk-format=qcow2 --container-format=bare < /var/kvm/images/centos7.img 

+------------------+--------------------------------------+
| Property         | Value                                |
+------------------+--------------------------------------+
| checksum         | 53ef100c4653a55c3bc7f6627f75a5c2     |
| container_format | bare                                 |
| created_at       | 2015-01-08T13:40:54                  |
| deleted          | False                                |
| deleted_at       | None                                 |
| disk_format      | qcow2                                |
| id               | 4a663fce-97eb-42d3-93d6-415e477bc0a4 |
| is_public        | True                                 |
| min_disk         | 0                                    |
| min_ram          | 0                                    |
| name             | CentOS7                              |
| owner            | e8f6ac69de5f46afa189fcefd99c8a1a     |
| protected        | False                                |
| size             | 974454784                            |
| status           | active                               |
| updated_at       | 2015-01-08T13:40:59                  |
| virtual_size     | None                                 |
+------------------+--------------------------------------+
[root@dlp ~(keystone)]#
glance image-list 

+-----------+---------+-------------+------------------+-----------+--------+
| ID        | Name    | Disk Format | Container Format | Size      | Status |
+-----------+---------+-------------+------------------+-----------+--------+
| 4a663fce- | CentOS7 | qcow2       | bare             | 974454784 | active |
+-----------+---------+-------------+------------------+-----------+--------+
[5] By the way, if you got an image fron internet, it's OK to simply add it like follows.
root@dlp:~#
wget http://cloud-images.ubuntu.com/releases/14.10/release/ubuntu-14.10-server-cloudimg-amd64-disk1.img -P /var/kvm/images
root@dlp:~#
glance image-create --name="Ubuntu1410" --is-public=true --disk-format=qcow2 --container-format=bare < /var/kvm/images/ubuntu-14.10-server-cloudimg-amd64-disk1.img 

+------------------+--------------------------------------+
| Property         | Value                                |
+------------------+--------------------------------------+
| checksum         | 1fde1b5712b25dd1710acca5779e7cca     |
| container_format | bare                                 |
| created_at       | 2015-01-06T11:14:06                  |
| deleted          | False                                |
| deleted_at       | None                                 |
| disk_format      | qcow2                                |
| id               | 32f8999d-4242-43b4-ad3c-9b0b705dedd3 |
| is_public        | True                                 |
| min_disk         | 0                                    |
| min_ram          | 0                                    |
| name             | Ubuntu1410                           |
| owner            | ba9a9493fcd34512bf09108e455dc17e     |
| protected        | False                                |
| size             | 266535424                            |
| status           | active                               |
| updated_at       | 2015-01-06T11:14:09                  |
| virtual_size     | None                                 |
+------------------+--------------------------------------+
 
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