OpenStack Mitaka : How to use Heat2016/06/08 |
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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 |
+--------------------+
|
| [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 | +--------------------------------------+------------+ | d7e743c4-c1f5-458b-abc5-2d9176c07a93 | Ubuntu1604 | +--------------------------------------+------------+root@dlp ~(keystone)# neutron net-list +--------------------------------------+---------+-------------------------------------------------------+ | id | name | subnets | +--------------------------------------+---------+-------------------------------------------------------+ | 770a1018-973c-43bc-8922-26238b7bcde5 | ext_net | 24bee302-ab35-43fc-b415-3930d1e01902 10.0.0.0/24 | | 4b658dd5-bc91-40d4-8268-c1fa2cfdfff0 | int_net | 3c232880-5aca-42fd-b9f9-a077cf5e6a39 192.168.100.0/24 | +--------------------------------------+---------+-------------------------------------------------------+root@dlp ~(keystone)# Int_Net_ID=`neutron net-list | grep int_net | awk '{ print $2 }'`
# create an instance from the template root@dlp ~(keystone)# heat stack-create -f sample-stack.yml -P "ImageID=Ubuntu1604;NetID=$Int_Net_ID" Sample-Stack +--------------------------------------+--------------+--------------------+---------------------+--------------+ | id | stack_name | stack_status | creation_time | updated_time | +--------------------------------------+--------------+--------------------+---------------------+--------------+ | 5040ab16-54cb-468b-ae4a-0b474a4930ac | Sample-Stack | CREATE_IN_PROGRESS | 2016-06-09T11:28:33 | 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 | +--------------------------------------+--------------+-----------------+---------------------+--------------+ | 5040ab16-54cb-468b-ae4a-0b474a4930ac | Sample-Stack | CREATE_COMPLETE | 2016-06-09T11:28:33 | 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 | +----------------+----------------------+---------+------------+-------------+-----------------------------------+ | c6ea1f23-d031- | Heat_Deployed_Server | ACTIVE | - | Running | int_net=192.168.100.4 | | 545457b2-517f- | Ubuntu_1604 | SHUTOFF | - | Shutdown | int_net=192.168.100.3, 10.0.0.201 | +----------------+----------------------+---------+------------+-------------+-----------------------------------+ # 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 | +--------------------------------------+--------------+-----------------+---------------------+--------------+ | 5040ab16-54cb-468b-ae4a-0b474a4930ac | Sample-Stack | CREATE_COMPLETE | 2016-06-09T11:28:33 | 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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