OpenStack Kilo : How to use Heat2015/06/20 |
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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: 2014-10-16
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 | Disk Format | Container Format | Size | Status | +--------------------------------------+---------+-------------+------------------+------------+--------+ | 2aab2d1a-e1e8-45c9-81a0-0c76a3c98ee5 | CentOS7 | qcow2 | bare | 1042481152 | active | +--------------------------------------+---------+-------------+------------------+------------+--------+[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 | +--------------------------------------+--------------+--------------------+----------------------+ | dc0a06cc-d387-48b1-a81c-c31875356f2e | Sample-Stack | CREATE_IN_PROGRESS | 2015-06-19T16:18:32Z | +--------------------------------------+--------------+--------------------+----------------------+ # turn to "CREATE_COMPLETE" after few minutes later like follows [root@dlp ~(keystone)]# heat stack-list +--------------------------------------+--------------+-----------------+----------------------+ | id | stack_name | stack_status | creation_time | +--------------------------------------+--------------+-----------------+----------------------+ | dc0a06cc-d387-48b1-a81c-c31875356f2e | Sample-Stack | CREATE_COMPLETE | 2015-06-19T16:18:32Z | +--------------------------------------+--------------+-----------------+----------------------+ # the instance is running which is created from the Heat template [root@dlp ~(keystone)]# nova list +-----------+----------------------+---------+------------+-------------+-----------------------+ | ID | Name | Status | Task State | Power State | Networks | +-----------+----------------------+---------+------------+-------------+-----------------------+ | 2c7a1025- | CentOS_7 | SHUTOFF | - | Shutdown | int_net=192.168.100.3 | | 1d43ce4c- | 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 +--------------------------------------+--------------+--------------------+----------------------+ | id | stack_name | stack_status | creation_time | +--------------------------------------+--------------+--------------------+----------------------+ | dc0a06cc-d387-48b1-a81c-c31875356f2e | Sample-Stack | DELETE_IN_PROGRESS | 2015-06-19T16:18:32Z | +--------------------------------------+--------------+--------------------+----------------------+[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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