OpenStack Mitaka : How to use Heat2016/05/12 |
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How to use the OpenStack Orchestration Service (Heat).
This example is based on the environment like follows.
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+------------------+ | +------------------------+
| [ Control Node ] | | | [ Network Node ] |
| Keystone |10.0.0.30 | 10.0.0.50| DHCP,L3,L2 Agent |
| Glance |------------+------------| Metadata Agent |
| Nova API |eth0 | eth0| Heat API,API-CFN |
| Neutron Server | | | Heat Engine |
+------------------+ | +------------------------+
eth0|10.0.0.51
+--------------------+
| [ Compute Node ] |
| Nova Compute |
| L2 Agent |
+--------------------+
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| [1] | Deploy Instances with Heat services and templates. The example below is on the Controle Node. |
heat_template_version: 2016-04-08
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)]#
glance image-list +--------------------------------------+---------+ | ID | Name | +--------------------------------------+---------+ | cd41a1b9-9ba6-4681-9310-e4befaf71fa5 | CentOS7 | +--------------------------------------+---------+[root@dlp ~(keystone)]# neutron net-list +--------------------------------------+---------+-------------------------------------------------------+ | id | name | subnets | +--------------------------------------+---------+-------------------------------------------------------+ | 550b379c-90f6-4cff-8063-88167dc7c568 | ext_net | 702832ef-4de5-41ba-9c2c-de2450d15ab0 10.0.0.0/24 | | a8705bd3-c2de-4526-aa7c-2c4605a6edf4 | int_net | f29ee9fd-7bae-40d8-8d4c-a1340092f258 192.168.100.0/24 | +--------------------------------------+---------+-------------------------------------------------------+[root@dlp ~(keystone)]# Int_Net_ID=`neutron net-list | grep int_net | awk '{ print $2 }'`
# create an instance from the template [root@dlp ~(keystone)]# heat stack-create -f sample-stack.yml -P "ImageID=CentOS7;NetID=$Int_Net_ID" Sample-Stack +--------------------------------------+--------------+--------------------+---------------------+--------------+ | id | stack_name | stack_status | creation_time | updated_time | +--------------------------------------+--------------+--------------------+---------------------+--------------+ | 66b7f3f2-9fb3-4b7c-adf8-b1be85990a6e | Sample-Stack | CREATE_IN_PROGRESS | 2016-05-12T12:49:03 | None | +--------------------------------------+--------------+--------------------+---------------------+--------------+ # turn to "CREATE_COMPLETE" after few minutes later like follows [root@dlp ~(keystone)]# heat stack-list +--------------------------------------+--------------+-----------------+---------------------+--------------+ | id | stack_name | stack_status | creation_time | updated_time | +--------------------------------------+--------------+-----------------+---------------------+--------------+ | 66b7f3f2-9fb3-4b7c-adf8-b1be85990a6e | Sample-Stack | CREATE_COMPLETE | 2016-05-12T12:49:03 | None | +--------------------------------------+--------------+-----------------+---------------------+--------------+ # the instance is running which is created from the Heat template [root@dlp ~(keystone)]# nova list +--------------------------------------+----------------------+---------+------------+-------------+-----------------------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+----------------------+---------+------------+-------------+-----------------------------------+ | 4e232450-4cae-47ba-a19a-1c59e3cbc91b | CentOS_7 | SHUTOFF | - | Shutdown | int_net=192.168.100.3, 10.0.0.201 | | 7b91f594-100d-4d84-a78b-952c6a1abb98 | Heat_Deployed_Server | ACTIVE | - | Running | int_net=192.168.100.4 | +--------------------------------------+----------------------+---------+------------+-------------+-----------------------------------+ # delete the instance likwe follows if you don't need [root@dlp ~(keystone)]# heat stack-delete Sample-Stack Are you sure you want to delete this stack(s) [y/N]? y +--------------------------------------+--------------+-----------------+---------------------+--------------+ | id | stack_name | stack_status | creation_time | updated_time | +--------------------------------------+--------------+-----------------+---------------------+--------------+ | 66b7f3f2-9fb3-4b7c-adf8-b1be85990a6e | Sample-Stack | CREATE_COMPLETE | 2016-05-12T12:49:03 | None | +--------------------------------------+--------------+-----------------+---------------------+--------------+[root@dlp ~(keystone)]# heat stack-list +----+------------+--------------+---------------+ | id | stack_name | stack_status | creation_time | +----+------------+--------------+---------------+ +----+------------+--------------+---------------+ |
| [2] |
The guide for writing templates are opened on the official site below.
⇒ http://docs.openstack.org/developer/heat/template_guide/index.html |
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