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![コマンド (stable/folsom)
$ glance-replicator –h
Usage: glance-replicator <command> [options] [args]
Commands:
help <command> Output help for one of the commands below
compare What is missing from the slave glance?
dump Dump the contents of a glance instance to local disk.
livecopy Load the contents of one glance instance into another.
load Load the contents of a local directory into glance.
size Determine the size of a glance instance if dumped to disk.
4](https://image.slidesharecdn.com/glance-replicator-121222231834-phpapp02/85/glance-replicator-4-320.jpg)
![TIPS
● 認証にはテナント・ユーザ・パスワードではな
く、 keystone が発行した TOKEN を使う
● TOKEN を取得するスクリプト
– get_token.sh
#!/bin/bash
HOST_IP=$1
ADMIN_TENANT=$2
ADMIN_USER=$3
ADMIN_PASSWORD=$4
TOKEN=`curl -s -d "{"auth":{"passwordCredentials":
{"username": "$ADMIN_USER", "password": "$ADMIN_PASSWORD"}, "tenan
tName": "$ADMIN_TENANT"}}" -H "Content-type: application/json" http://
$HOST_IP:5000/v2.0/tokens | python -c "import sys; import json; tok =
json.loads(sys.stdin.read()); print tok['access']['token']['id'];"`
echo $TOKEN
5](https://image.slidesharecdn.com/glance-replicator-121222231834-phpapp02/85/glance-replicator-5-320.jpg)
Uploaded byirix_jp
glance replicator
The document discusses the glance-replicator tool in OpenStack. Glance-replicator allows replication of images between two glance servers. It can replicate images and also import and export images. The document provides examples of using glance-replicator commands like compare, livecopy to replicate images between two devstack all-in-one OpenStack environments. It demonstrates the initial state with only one environment having images and after replication both environments having the same set of images.
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glance replicator
- 1. Advent Calendar 2012JP openstack Open source software to build public and private clouds. glance-replicator glance-replicator 2012.12.23 @irix_jp 1
- 2. glance-replicator ● folsom から glance に組み込まれたコマンドツー ル ● 二つの glance サーバ間で image のレプリケー ションができる。 ● レプリケーションだけでなく、イメージのインポート・ エクスポートも可能 2
- 3. 動作イメージ images glance-replicator glance-api glance-registry glance-api glance-registry DB DB images images data store keystone data store keystone 3
- 4. コマンド (stable/folsom) $ glance-replicator–h Usage: glance-replicator <command> [options] [args] Commands: help <command> Output help for one of the commands below compare What is missing from the slave glance? dump Dump the contents of a glance instance to local disk. livecopy Load the contents of one glance instance into another. load Load the contents of a local directory into glance. size Determine the size of a glance instance if dumped to disk. 4
- 5. TIPS ● 認証にはテナント・ユーザ・パスワードではな く、 keystone が発行した TOKEN を使う ● TOKEN を取得するスクリプト – get_token.sh #!/bin/bash HOST_IP=$1 ADMIN_TENANT=$2 ADMIN_USER=$3 ADMIN_PASSWORD=$4 TOKEN=`curl -s -d "{"auth":{"passwordCredentials": {"username": "$ADMIN_USER", "password": "$ADMIN_PASSWORD"}, "tenan tName": "$ADMIN_TENANT"}}" -H "Content-type: application/json" http:// $HOST_IP:5000/v2.0/tokens | python -c "import sys; import json; tok = json.loads(sys.stdin.read()); print tok['access']['token']['id'];"` echo $TOKEN 5
- 6. テスト環境 ● 二つの独立した OpenStack 環境を構築 ● devstack での All in One 環境（ localrc は次項） 192.168.128.100 192.168.128.200 Ubuntu12.04 Ubuntu12.04 Folsom/stable Folsom/stable Devstack Devstack (all in one) (all in one) 6
- 7. localrc HOST_IP=192.168.128.100 HOST_IP=192.168.128.200 ADMIN_PASSWORD=openstack ADMIN_PASSWORD=openstack MYSQL_PASSWORD=$ADMIN_PASSWORD MYSQL_PASSWORD=$ADMIN_PASSWORD RABBIT_PASSWORD=$ADMIN_PASSWORD RABBIT_PASSWORD=$ADMIN_PASSWORD SERVICE_PASSWORD=$ADMIN_PASSWORD SERVICE_PASSWORD=$ADMIN_PASSWORD SERVICE_TOKEN=admintoken SERVICE_TOKEN=admintoken disable_service n-net disable_service n-net disable_service n-obj disable_service n-obj enable_service q-svc enable_service q-svc enable_service q-agt enable_service q-agt enable_service q-dhcp enable_service q-dhcp enable_service q-l3 enable_service q-l3 ENABLE_TENANT_TUNNELS=True ENABLE_TENANT_TUNNELS=True FIXED_RANGE=172.24.17.0/24 FIXED_RANGE=172.24.17.0/24 NETWORK_GATEWAY=172.24.17.254 NETWORK_GATEWAY=172.24.17.254 FLOATING_RANGE=10.0.0.0/24 FLOATING_RANGE=10.0.0.0/24 NOVA_BRANCH=stable/folsom NOVA_BRANCH=stable/folsom GLANCE_BRANCH=stable/folsom GLANCE_BRANCH=stable/folsom KEYSTONE_BRANCH=stable/folsom KEYSTONE_BRANCH=stable/folsom HORIZON_BRANCH=stable/folsom HORIZON_BRANCH=stable/folsom CINDER_BRANCH=stable/folsom CINDER_BRANCH=stable/folsom QUANTUM_BRANCH=stable/folsom QUANTUM_BRANCH=stable/folsom 7
- 8. 初期状態の glance ● 192.168.128.100 $ glance --os-auth-url http://localhost:5000/v2.0 --os-tenant-name admin --os-username admin --os-password openstack image-list +--------------------------------------+---------------------------------+-------------+------------------+----------+--------+ | ID | Name | Disk Format | Container Format | Size | Status | +--------------------------------------+---------------------------------+-------------+------------------+----------+--------+ | de150d8d-eb33-45f9-88a6-142228b902ba | cirros-0.3.0-x86_64-uec | ami | ami | 25165824 | active | | bcaf789e-df5e-4862-b77b-d6cc8e63d33b | cirros-0.3.0-x86_64-uec-kernel | aki | aki | 4731440 | active | | 0db62cb0-d592-4a24-8fdf-45a44a6f9298 | cirros-0.3.0-x86_64-uec-ramdisk | ari | ari | 2254249 | active | +--------------------------------------+---------------------------------+-------------+------------------+----------+--------+ ● 192.168.128.200 $ glance --os-auth-url http://localhost:5000/v2.0 --os-tenant-name admin --os-username admin --os-password openstack image-list → 空 8
- 9. compare ● 100 → 200 $ glance-replicator -v compare 192.168.128.100:9292 192.168.128.200:9292 -M `./get_token.sh 192.168.128.100 admin admin openstack` -S `./get_token.sh 192.168.128.200 admin admin openstack` de150d8d-eb33-45f9-88a6-142228b902ba: entirely missing from the destination 0db62cb0-d592-4a24-8fdf-45a44a6f9298: entirely missing from the destination bcaf789e-df5e-4862-b77b-d6cc8e63d33b: entirely missing from the destination ● 200 → 100 $ glance-replicator -v compare 192.168.128.200:9292 192.168.128.100:9292 -M `./get_token.sh 192.168.128.200 admin admin openstack` -S `./get_token.sh 192.168.128.100 admin admin openstack` → 空 9
- 10. livecopy ● 100 → 200 $ glance-replicator -v livecopy 192.168.128.100:9292 192.168.128.200:9292 -M `./get_token.sh 192.168.128.100 demo demo openstack` -S `./get_token.sh 192.168.128.200 demo demo openstack` Considering de150d8d-eb33-45f9-88a6-142228b902ba de150d8d-eb33-45f9-88a6-142228b902ba is being synced Considering 0db62cb0-d592-4a24-8fdf-45a44a6f9298 0db62cb0-d592-4a24-8fdf-45a44a6f9298 is being synced Considering bcaf789e-df5e-4862-b77b-d6cc8e63d33b bcaf789e-df5e-4862-b77b-d6cc8e63d33b is being synced ● 200 → 100 $ glance-replicator -v compare 192.168.128.200:9292 192.168.128.100:9292 -M `./get_token.sh 192.168.128.200 admin admin openstack` -S `./get_token.sh 192.168.128.100 admin admin openstack` → 空 10
- 11. コピー後の状態１ ● 192.168.128.100 $ glance --os-auth-url http://localhost:5000/v2.0 --os-tenant-name admin --os-username admin --os-password openstack image-list +--------------------------------------+---------------------------------+-------------+------------------+----------+--------+ | ID | Name | Disk Format | Container Format | Size | Status | +--------------------------------------+---------------------------------+-------------+------------------+----------+--------+ | de150d8d-eb33-45f9-88a6-142228b902ba | cirros-0.3.0-x86_64-uec | ami | ami | 25165824 | active | | bcaf789e-df5e-4862-b77b-d6cc8e63d33b | cirros-0.3.0-x86_64-uec-kernel | aki | aki | 4731440 | active | | 0db62cb0-d592-4a24-8fdf-45a44a6f9298 | cirros-0.3.0-x86_64-uec-ramdisk | ari | ari | 2254249 | active | +--------------------------------------+---------------------------------+-------------+------------------+----------+--------+ ● 192.168.128.200 $ glance --os-auth-url http://localhost:5000/v2.0 --os-tenant-name admin --os-username admin --os-password openstack image-list +--------------------------------------+---------------------------------+-------------+------------------+----------+--------+ | ID | Name | Disk Format | Container Format | Size | Status | +--------------------------------------+---------------------------------+-------------+------------------+----------+--------+ | de150d8d-eb33-45f9-88a6-142228b902ba | cirros-0.3.0-x86_64-uec | ami | ami | 25165824 | active | | bcaf789e-df5e-4862-b77b-d6cc8e63d33b | cirros-0.3.0-x86_64-uec-kernel | aki | aki | 4731440 | active | | 0db62cb0-d592-4a24-8fdf-45a44a6f9298 | cirros-0.3.0-x86_64-uec-ramdisk | ari | ari | 2254249 | active | +--------------------------------------+---------------------------------+-------------+------------------+----------+--------+ 11
- 12. コピー後の状態 2 192.168.128.100 $ glance --os-auth-url http://localhost:5000/v2.0 --os-tenant-name 192.168.128.200 $ glance --os-auth-url http://localhost:5000/v2.0 --os-tenant-name admin --os-username admin --os-password openstack image-show admin --os-username admin --os-password openstack image-show de150d8d-eb33-45f9-88a6-142228b902ba de150d8d-eb33-45f9-88a6-142228b902ba +-----------------------+--------------------------------------+ +-----------------------+--------------------------------------+ | Property | Value | | Property | Value | +-----------------------+--------------------------------------+ +-----------------------+--------------------------------------+ | Property 'kernel_id' | bcaf789e-df5e-4862-b77b-d6cc8e63d33b | | Property 'kernel_id' | bcaf789e-df5e-4862-b77b-d6cc8e63d33b | | Property 'ramdisk_id' | 0db62cb0-d592-4a24-8fdf-45a44a6f9298 | | Property 'ramdisk_id' | 0db62cb0-d592-4a24-8fdf-45a44a6f9298 | | checksum | 2f81976cae15c16ef0010c51e3a6c163 | | checksum | 2f81976cae15c16ef0010c51e3a6c163 | | container_format | ami | | container_format | ami | | created_at | 2012-12-22T03:00:42 | | created_at | 2012-12-22T16:46:30 | | deleted | False | | deleted | False | | disk_format | ami | | disk_format | ami | | id | de150d8d-eb33-45f9-88a6-142228b902ba | | id | de150d8d-eb33-45f9-88a6-142228b902ba | | is_public | True | | is_public | True | | min_disk | 0 | | min_disk | 0 | | min_ram | 0 | | min_ram | 0 | | name | cirros-0.3.0-x86_64-uec | | name | cirros-0.3.0-x86_64-uec | | owner | a458e9fbf0394622a1aa627550d20daa | | owner | a458e9fbf0394622a1aa627550d20daa | | protected | False | | protected | False | | size | 25165824 | | size | 25165824 | | status | active | | status | active | | updated_at | 2012-12-22T03:00:43 | | updated_at | 2012-12-22T16:46:31 | +-----------------------+--------------------------------------+ +-----------------------+--------------------------------------+ ● owner(tenant_id) までコピーされている点に注意 ● 今回は別の keystone を使っているが、 is_public=true なので image-list に出ているだけ。 12
- 13. is_public=false だと・・・ ● 100 側、 demo ユーザで追加 $ glance --os-auth-url http://localhost:5000/v2.0 --os-tenant-name demo --os-username demo --os-password openstack image-list +--------------------------------------+---------------------------------+-------------+------------------+----------+--------+ | ID | Name | Disk Format | Container Format | Size | Status | +--------------------------------------+---------------------------------+-------------+------------------+----------+--------+ | de150d8d-eb33-45f9-88a6-142228b902ba | cirros-0.3.0-x86_64-uec | ami | ami | 25165824 | active | | bcaf789e-df5e-4862-b77b-d6cc8e63d33b | cirros-0.3.0-x86_64-uec-kernel | aki | aki | 4731440 | active | | 0db62cb0-d592-4a24-8fdf-45a44a6f9298 | cirros-0.3.0-x86_64-uec-ramdisk | ari | ari | 2254249 | active | | 0d075151-3925-4b85-8f77-d908f1df70be | snap1 | ami | ami | 25165824 | active | +--------------------------------------+---------------------------------+-------------+------------------+----------+--------+ ● Admin(100) → Admin(200) でコピー ● コピーはされるが、誰も参照できない ( コピーされた ID が 200 側の keystone に存在しないため。 MYSQL> use glance; select id,name,is_public,owner from images; +--------------------------------------+---------------------------------+-----------+----------------------------------+ | id | name | is_public | owner | +--------------------------------------+---------------------------------+-----------+----------------------------------+ | 0d075151-3925-4b85-8f77-d908f1df70be | snap1 | 0 | 936ef2486d3749bbb51bfedbc69e9d28 | | 0db62cb0-d592-4a24-8fdf-45a44a6f9298 | cirros-0.3.0-x86_64-uec-ramdisk | 1 | a458e9fbf0394622a1aa627550d20daa | | bcaf789e-df5e-4862-b77b-d6cc8e63d33b | cirros-0.3.0-x86_64-uec-kernel | 1 | a458e9fbf0394622a1aa627550d20daa | | de150d8d-eb33-45f9-88a6-142228b902ba | cirros-0.3.0-x86_64-uec | 1 | a458e9fbf0394622a1aa627550d20daa | +--------------------------------------+---------------------------------+-----------+----------------------------------+ 13
- 14. ユーザ権限でのコピーだと ● 100 側 $ glance --os-auth-url http://localhost:5000/v2.0 --os-tenant-name demo --os-username demo --os-password openstack image-list +--------------------------------------+---------------------------------+-------------+------------------+----------+--------+ | ID | Name | Disk Format | Container Format | Size | Status | +--------------------------------------+---------------------------------+-------------+------------------+----------+--------+ | de150d8d-eb33-45f9-88a6-142228b902ba | cirros-0.3.0-x86_64-uec | ami | ami | 25165824 | active | | bcaf789e-df5e-4862-b77b-d6cc8e63d33b | cirros-0.3.0-x86_64-uec-kernel | aki | aki | 4731440 | active | | 0db62cb0-d592-4a24-8fdf-45a44a6f9298 | cirros-0.3.0-x86_64-uec-ramdisk | ari | ari | 2254249 | active | | 0d075151-3925-4b85-8f77-d908f1df70be | snap1 | ami | ami | 25165824 | active | | 3532fd21-6bf8-440c-9bcb-9ea7df30ce8a | snap2 | ami | ami | 25165824 | active | +--------------------------------------+---------------------------------+-------------+------------------+----------+--------+ $ glance-replicator -v livecopy 192.168.128.100:9292 192.168.128.200:9292 -M `./get_token.sh 192.168.128.100 demo demo openstack` -S `./get_token.sh 192.168.128.200 demo demo openstack` ● 200 側 $ glance --os-auth-url http://localhost:5000/v2.0 --os-tenant-name demo --os-username demo --os-password openstack image-list +--------------------------------------+---------------------------------+-------------+------------------+----------+--------+ | ID | Name | Disk Format | Container Format | Size | Status | +--------------------------------------+---------------------------------+-------------+------------------+----------+--------+ | de150d8d-eb33-45f9-88a6-142228b902ba | cirros-0.3.0-x86_64-uec | ami | ami | 25165824 | active | | bcaf789e-df5e-4862-b77b-d6cc8e63d33b | cirros-0.3.0-x86_64-uec-kernel | aki | aki | 4731440 | active | | 0db62cb0-d592-4a24-8fdf-45a44a6f9298 | cirros-0.3.0-x86_64-uec-ramdisk | ari | ari | 2254249 | active | | 3532fd21-6bf8-440c-9bcb-9ea7df30ce8a | snap2 | ami | ami | 25165824 | active | +--------------------------------------+---------------------------------+-------------+------------------+----------+--------+ snap1 のコピーは、既に同じ ID のイメージが登録されている（参照不可）ため失敗します。 14
- 15. まとめ ● keystone を共有しているか、していないかで livecopy の使い方が変わる。 ● している場合： admin でコピーすれば終わり ● していない場合：ユーザ権限でコピーする – ユーザ権限でコピーすると、 is_public=true のものが、 ID が 変わってコピーされてしまう。 ● --no-replica-public 等のオプションが欲しい。 – 冬休みに時間があったらパッチ書く（キリッ ● dump/load でいったんファイルに落として操作す ればどっちでもおｋ。 15