OpenStack Heat 提供 Orchestration 服務,可以基於模板(Template)來編配產生可執行雲端應用程式,讓管理員可以用一個板模檔案來描述部署業務流程。
在開始安裝前,要預先建立一個資料庫給 Heat 儲存相關資訊,使用以下指令建立資料庫:
$ mysql -u root -p
透過以下命令用來更新現有帳號資料或建立 Heat 資料庫:
CREATE DATABASE heat;
GRANT ALL PRIVILEGES ON heat.* TO 'heat'@'localhost' IDENTIFIED BY 'HEAT_DBPASS';
GRANT ALL PRIVILEGES ON heat.* TO 'heat'@'%' IDENTIFIED BY 'HEAT_DBPASS';
這邊
HEAT_DBPASS
可以隨需求修改。
完成後離開資料庫,接著要建立 Service 與 API Endpoint,首先導入admin
環境變數:
$ . admin-openrc
接著透過以下流程來建立 Heat 的使用者、Service 以及 API Endpoint:
# 建立 Heat User
$ openstack user create --domain default --password HEAT_PASS --email [email protected] heat
# 新增 Heat 到 Admin Role
$ openstack role add --project service --user heat admin
# 建立 Heat service
$ openstack service create --name heat --description "Orchestration" orchestration
# 建立 Heat-cfn 服務
$ openstack service create --name heat-cfn --description "Orchestration" cloudformation
# 建立 Heat public endpoints
$ openstack endpoint create --region RegionOne \
orchestration public http://10.0.0.11:8004/v1/%\(tenant_id\)s
# 建立 Heat internal endpoints
$ openstack endpoint create --region RegionOne \
orchestration internal http://10.0.0.11:8004/v1/%\(tenant_id\)s
# 建立 Heat admin endpoints
$ openstack endpoint create --region RegionOne \
orchestration admin http://10.0.0.11:8004/v1/%\(tenant_id\)s
# 建立 Heat cloudformation public endpoints
$ openstack endpoint create --region RegionOne \
cloudformation public http://10.0.0.11:8000/v1
# 建立 Heat cloudformation internal endpoints
$ openstack endpoint create --region RegionOne \
cloudformation internal http://10.0.0.11:8000/v1
# 建立 Heat cloudformation admin endpoints
$ openstack endpoint create --region RegionOne \
cloudformation admin http://10.0.0.11:8000/v1
# 建立 Heat domain
$ openstack domain create --description "Stack projects and users" heat
# 建立 Heat domain admin user
$ openstack user create --domain heat --password HEAT_DOMAIN_PASS \
--email [email protected] \
heat_domain_admin
# 新增 Heat domain admin 到 Admin role
$ openstack role add --domain heat --user heat_domain_admin admin
# 建立 Heat stack owner role
$ openstack role create heat_stack_owner
# 新增 dome 到 heat_stack_owner role
$ openstack role add --project demo --user demo heat_stack_owner
# 建立 Heat stack user role
$ openstack role create heat_stack_user
這邊
HEAT_PASS
與HEAT_DOMAIN_PASS
可以隨需求修改。
在開始設定之前,首先要安裝相關套件與 OpenStack 服務套件,可以透過以下指令進行安裝:
$ sudo apt-get install -y heat-api heat-api-cfn heat-engine
若有使用
magnum
的話,請務必再安裝heat-api-cloudwatch
。
安裝完成後,編輯/etc/heat/heat.conf
設定檔,在[DEFAULT]
部分加入以下內容:
[DEFAULT]
...
rpc_backend = rabbit
heat_metadata_server_url = http://10.0.0.11:8000
heat_waitcondition_server_url = http://10.0.0.11:8000/v1/waitcondition
heat_watch_server_url = http://10.0.0.11:8003
stack_domain_admin = heat_domain_admin
stack_domain_admin_password = HEAT_DOMAIN_PASS
stack_user_domain_name = heat
這邊
HEAT_PASS
與HEAT_DOMAIN_PASS
可以隨需求修改。
在[database]
部分修改使用以下方式:
[database]
connection = mysql+pymysql://heat:[email protected]/heat
這邊
HEAT_DBPASS
可以隨需求修改。
在[oslo_messaging_rabbit]
部分加入以下內容:
[oslo_messaging_rabbit]
rabbit_host = 10.0.0.11
rabbit_userid = openstack
rabbit_password = RABBIT_PASS
這邊
RABBIT_PASS
可以隨需求修改。
在[keystone_authtoken]
部分加入以下內容:
[keystone_authtoken]
auth_uri = http://10.0.0.11:5000
auth_url = http://10.0.0.11:35357
memcached_servers = 10.0.0.11:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = heat
password = HEAT_PASS
這邊
HEAT_PASS
可以隨需求修改。
在[trustee]
部分加入以下內容:
[trustee]
auth_url = http://10.0.0.11:35357
auth_plugin = password
user_domain_name = default
username = heat
password = HEAT_PASS
這邊
HEAT_PASS
可以隨需求修改。
在[clients_keystone]
部分加入以下內容:
[clients_keystone]
auth_uri = http://10.0.0.11:5000
在[ec2authtoken]
部分加入以下內容:
[ec2authtoken]
auth_uri = http://10.0.0.11:5000
完成以上檔案設定後,即可同步資料庫來建立資料表:
$ sudo heat-manage db_sync
完成後,重新啟動 Heat 的服務:
sudo service heat-api restart
sudo service heat-api-cfn restart
sudo service heat-engine restart
最後刪除預設的 SQLite 資料庫:
$ sudo rm -f /var/lib/heat/heat.sqlite
首先在Controller
節點導入admin
帳號來驗證服務:
$ . admin-openrc
建立一個test-stack.yml
板模檔案,在裡面加入以下內容:
heat_template_version: 2014-10-16
description: A simple server.
parameters:
ImageID:
type: string
description: Image use to boot a server
NetID:
type: string
description: Network ID for the server
resources:
server:
type: OS::Nova::Server
properties:
image: { get_param: ImageID }
flavor: m1.tiny
networks:
- network: { get_param: NetID }
outputs:
private_ip:
description: IP address of the server in the private network
value: { get_attr: [ server, first_address ] }
完成後,可以透過 Heat client 程式來使用板模,指令如下:
$ NET_ID=$(nova net-list | awk '/ admin-net / { print $2 }')
$ heat stack-create -f test-stack.yml \
-P "ImageID=cirros-0.3.4-x86_64;NetID=$NET_ID" testStack
+--------------------------------------+------------+--------------------+----------------------+
| id | stack_name | stack_status | creation_time |
+--------------------------------------+------------+--------------------+----------------------+
| 477d96b4-d547-4069-938d-32ee990834af | testStack | CREATE_IN_PROGRESS | 2014-04-06T15:11:01Z |
+--------------------------------------+------------+--------------------+----------------------+
P.S 這邊
NET_ID
要注意執行指令時,抓取的網路是否存在。
透過 Heat client 程式來查看列表,指令如下:
$ heat stack-list
+--------------------------------------+------------+-----------------+----------------------+
| id | stack_name | stack_status | creation_time |
+--------------------------------------+------------+-----------------+----------------------+
| b1e5e05e-8932-4b2e-beba-97a5ba36a3f3 | testStack | CREATE_COMPLETE | 2015-07-03T07:08:28Z |
+--------------------------------------+------------+-----------------+----------------------+
透過 Heat client 程式來查看服務列表,指令如下:
$ openstack orchestration service list
+-------------+-------------+--------------------------+-------------+--------+--------------------------+--------+
| hostname | binary | engine_id | host | topic | updated_at | status |
+-------------+-------------+--------------------------+-------------+--------+--------------------------+--------+
| controller1 | heat-engine | ff8e8263-363e-4496-a9b3- | controller1 | engine | 2016-10-12T09:42:45.0000 | up |
| | | 9e65a0f2d86f | | | 00 | |
| controller1 | heat-engine | 96032e24-599d-413a- | controller1 | engine | 2016-10-12T09:42:44.0000 | up |
| | | a3d8-3faeae6d3e08 | | | 00 | |
| controller1 | heat-engine | ea90e4a1-38d6-4b79-b22b- | controller1 | engine | 2016-10-12T09:42:44.0000 | up |
| | | 43b48a33ba59 | | | 00 | |
| controller1 | heat-engine | c309fae9-2ce6-4733-82aa- | controller1 | engine | 2016-10-12T09:42:44.0000 | up |
| | | 9aa6f13ce308 | | | 00 | |
+-------------+-------------+--------------------------+-------------+--------+--------------------------+--------+