OpenStack Ussuri : Heat 利用方法2020/06/10 |
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OpenStack Orchestration Service（Heat）の利用方法です。
当例では以下のような環境を例に Orchestration サービスを設定しています。
------------+---------------------------+---------------------------+------------
| | |
eth0|10.0.0.30 eth0|10.0.0.50 eth0|10.0.0.51
+-----------+-----------+ +-----------+-----------+ +-----------+-----------+
| [ Control Node ] | | [ Network Node ] | | [ Compute Node ] |
| | | | | |
| MariaDB RabbitMQ | | Open vSwitch | | Libvirt |
| Memcached httpd | | L2 Agent | | Nova Compute |
| Keystone Glance | | L3 Agent | | Open vSwitch |
| Nova API | | Metadata Agent | | L2 Agent |
| Neutron Server | | Cinder Volume | | |
| Metadata Agent | | Heat API API-CFN | | |
| Cinder API | | Heat Engine | | |
+-----------------------+ +-----------------------+ +-----------------------+
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| [1] | 構築した Heat サービスとテンプレートを利用してインスタンスをデプロイします。 作業は、どこでもよいですが、当例ではコントロールノード上で行います。 |
heat_template_version: 2018-08-31
description: Heat Sample Template
parameters:
ImageID:
type: string
description: Image used to boot a server
NetID:
type: string
description: Network ID for the server
resources:
server1:
type: OS::Nova::Server
properties:
name: "Heat_Deployed_Server"
image: { get_param: ImageID }
flavor: "m1.small"
networks:
- network: { get_param: NetID }
outputs:
server1_private_ip:
description: IP address of the server in the private network
value: { get_attr: [ server1, first_address ] }
[root@dlp ~(keystone)]#
openstack image list +--------------------------------------+---------+--------+ | ID | Name | Status | +--------------------------------------+---------+--------+ | 9e7034a0-c825-4990-8834-4a01ee920cf5 | CentOS8 | active | +--------------------------------------+---------+--------+[root@dlp ~(keystone)]# openstack network list +--------------------------------------+---------+--------------------------------------+ | ID | Name | Subnets | +--------------------------------------+---------+--------------------------------------+ | 5ad4fafb-24c6-4994-bfdb-7230dfcc8d8e | int_net | f0e80ef7-9b55-4ddd-a3e5-4bd98b5f93c2 | | 7b251931-9a2f-456f-8041-ef27027bb58d | ext_net | a7ee24b5-eb02-410d-a326-68a956aa2adb | +--------------------------------------+---------+--------------------------------------+[root@dlp ~(keystone)]# Int_Net_ID=$(openstack network list | grep int_net | awk '{ print $2 }')
# サンプルテンプレートからインスタンス作成 [root@dlp ~(keystone)]# openstack stack create -t sample-stack.yml --parameter "ImageID=CentOS8;NetID=$Int_Net_ID" Sample-Stack +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | id | 7b5eddcf-e6b9-4a19-9949-97d39ebdd752 | | stack_name | Sample-Stack | | description | Heat Sample Template | | creation_time | 2020-06-10T04:34:49Z | | updated_time | None | | stack_status | CREATE_IN_PROGRESS | | stack_status_reason | Stack CREATE started | +---------------------+--------------------------------------+ # しばらく待つとステータスがコンプリートになる [root@dlp ~(keystone)]# openstack stack list +--------------------------------------+--------------+----------------------------------+-----------------+----------------------+--------------+ | ID | Stack Name | Project | Stack Status | Creation Time | Updated Time | +--------------------------------------+--------------+----------------------------------+-----------------+----------------------+--------------+ | 7b5eddcf-e6b9-4a19-9949-97d39ebdd752 | Sample-Stack | 9cffeca6beec4a39ab6b076ec2bdd0c9 | CREATE_COMPLETE | 2020-06-10T04:34:49Z | None | +--------------------------------------+--------------+----------------------------------+-----------------+----------------------+--------------+ # テンプレートで指定したインスタンスが起動している [root@dlp ~(keystone)]# openstack server list +--------------------------------------+----------------------+--------+------------------------+---------+----------+ | ID | Name | Status | Networks | Image | Flavor | +--------------------------------------+----------------------+--------+------------------------+---------+----------+ | 21ba3dbd-322a-45b1-ae76-911619510ffe | Heat_Deployed_Server | ACTIVE | int_net=192.168.100.45 | CentOS8 | m1.small | +--------------------------------------+----------------------+--------+------------------------+---------+----------+ # 作成したインスタンスを削除する [root@dlp ~(keystone)]# openstack stack delete --yes Sample-Stack
[root@dlp ~(keystone)]#
[root@dlp ~(keystone)]# openstack stack list openstack server list |
| [2] |
テンプレートの記述方法のガイドは公式サイトに記載されているので参考にしてください。
⇒ https://docs.openstack.org/heat/latest/template_guide/index.html |
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