OpenStack Antelope : How to use Heat2023/03/27 |
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How to use the OpenStack Orchestration Service (Heat).
This example is based on the environment like follows.
------------+--------------------------+--------------------------+------------
| | |
eth0|10.0.0.30 eth0|10.0.0.50 eth0|10.0.0.51
+-----------+-----------+ +-----------+-----------+ +-----------+-----------+
| [ dlp.srv.world ] | | [ network.srv.world ] | | [ node01.srv.world ] |
| (Control Node) | | (Network Node) | | (Compute Node) |
| | | | | |
| MariaDB RabbitMQ | | Open vSwitch | | Libvirt |
| Memcached Nginx | | Neutron Server | | Nova Compute |
| Keystone httpd | | OVN-Northd | | Open vSwitch |
| Glance Nova API | | Nginx iSCSI Target | | OVN Metadata Agent |
| Cinder API | | Cinder Volume | | OVN-Controller |
| | | Heat API/Engine | | |
+-----------------------+ +-----------------------+ +-----------------------+
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| [1] | Deploy Instances with Heat services and templates. The example below is on the Control Node. |
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root@dlp ~(keystone)#
apt -y install python3-heatclient
heat_template_version: 2021-04-16
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)#
openstack image list +--------------------------------------+------------+--------+ | ID | Name | Status | +--------------------------------------+------------+--------+ | 00ea6e97-0e97-4cb4-8ac4-2409c28f0289 | Ubuntu2204 | active | +--------------------------------------+------------+--------+root@dlp ~(keystone)# openstack network list +--------------------------------------+---------+--------------------------------------+ | ID | Name | Subnets | +--------------------------------------+---------+--------------------------------------+ | 5352e6c0-47b3-4df2-84f4-ca048f141e1d | public | ca5539a8-0291-4684-9fb3-0f448efacebf | | ce6e88bc-107a-446b-b2ab-255bab7269fe | private | feb337ec-215e-406e-8871-196fed2c4207 | +--------------------------------------+---------+--------------------------------------+root@dlp ~(keystone)# Int_Net_ID=$(openstack network list | grep private | awk '{ print $2 }')
# create an instance from the template root@dlp ~(keystone)# openstack stack create -t sample-stack.yml --parameter "ImageID=Ubuntu2204;NetID=$Int_Net_ID" Sample-Stack +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | id | b86ea144-9d9a-43b4-a04b-1feaa09ada14 | | stack_name | Sample-Stack | | description | Heat Sample Template | | creation_time | 2023-03-27T07:30:24Z | | updated_time | None | | stack_status | CREATE_IN_PROGRESS | | stack_status_reason | Stack CREATE started | +---------------------+--------------------------------------+ # turn to [CREATE_COMPLETE] after few minutes later like follows root@dlp ~(keystone)# openstack stack list +--------------------------------------+--------------+----------------------------------+-----------------+----------------------+--------------+ | ID | Stack Name | Project | Stack Status | Creation Time | Updated Time | +--------------------------------------+--------------+----------------------------------+-----------------+----------------------+--------------+ | b86ea144-9d9a-43b4-a04b-1feaa09ada14 | Sample-Stack | cac657ec003e4c95aaaa30bc0321895f | CREATE_COMPLETE | 2023-03-27T07:30:24Z | None | +--------------------------------------+--------------+----------------------------------+-----------------+----------------------+--------------+ # the instance is running which is created from the Heat template root@dlp ~(keystone)# openstack server list +--------------------------------------+----------------------+--------+------------------------+------------+----------+ | ID | Name | Status | Networks | Image | Flavor | +--------------------------------------+----------------------+--------+------------------------+------------+----------+ | 78d363a3-f137-46db-b486-eed2a5a14ae3 | Heat_Deployed_Server | ACTIVE | private=192.168.100.84 | Ubuntu2204 | m1.small | +--------------------------------------+----------------------+--------+------------------------+------------+----------+ # delete the instance root@dlp ~(keystone)# openstack stack delete --yes Sample-Stack root@dlp ~(keystone)# openstack stack list |
| [2] |
The guide for writing templates are opened on the official site below.
⇒ https://docs.openstack.org/heat/latest/template_guide/index.html |
| [3] | If you'd like to use Heat with a common user, it needs to add the user in Heat role. |
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root@dlp ~(keystone)# openstack role list +----------------------------------+------------------+ | ID | Name | +----------------------------------+------------------+ | 3f31c91423a240e6bea892e4558fc1e6 | heat_stack_owner | | 43c012ff4b1349f09b928ece32c00777 | heat_stack_user | | 9ef8c6b3f07544fa8fbda60043be9ab4 | reader | | e06201251dca4570839521f089b961d3 | member | | f8ab227f0a1b4c1ba730ec919741482f | admin | +----------------------------------+------------------+root@dlp ~(keystone)# openstack project list +----------------------------------+-----------+ | ID | Name | +----------------------------------+-----------+ | cac657ec003e4c95aaaa30bc0321895f | admin | | d3dd87fb1a034f7883539a6a4f83781f | service | | e294bd7c00314facacdb46c36fb54ee9 | hiroshima | +----------------------------------+-----------+root@dlp ~(keystone)# openstack user list +----------------------------------+-------------------+ | ID | Name | +----------------------------------+-------------------+ | 3f8408ddae654aed8ffd07d667a92e24 | admin | | b0eb7a7d5077484eb43ac73eff8f2215 | glance | | a9613485a7f24f2d857f656ad9282ae3 | nova | | be7d5fd468c04daca48874019925938e | placement | | 131733f1a6e24197b47a4e9da6434ba2 | neutron | | 85236576a97e492791abe70c217c8898 | serverworld | | 1291621249e140b6b1b175a5a16303ee | cinder | | 246eeda313194b32bfa735d76e670ac3 | heat | | 903347ea9bd14a75b991200b71be08ec | heat_domain_admin | +----------------------------------+-------------------+ # for example, add [serverworld] user in [hiroshima] project to [heat_stack_owner] role root@dlp ~(keystone)# openstack role add --project hiroshima --user serverworld heat_stack_owner
# that's OK, common users can create stacks ubuntu@dlp ~(keystone)$ openstack stack list +--------------------------------------+--------------+-----------------+----------------------+--------------+ | ID | Stack Name | Stack Status | Creation Time | Updated Time | +--------------------------------------+--------------+-----------------+----------------------+--------------+ | 26ef0a47-3774-4b4c-9946-daf2348bd5c0 | Sample-Stack | CREATE_COMPLETE | 2023-03-27T07:34:40Z | None | +--------------------------------------+--------------+-----------------+----------------------+--------------+ubuntu@dlp ~(keystone)$ openstack server list +--------------------------------------+----------------------+---------+-------------------------------------+------------+-----------+ | ID | Name | Status | Networks | Image | Flavor | +--------------------------------------+----------------------+---------+-------------------------------------+------------+-----------+ | 45592651-144c-4fb9-bca1-564b321cc808 | Heat_Deployed_Server | ACTIVE | private=192.168.100.60 | Ubuntu2204 | m1.small | | 11987eec-fb38-4de1-a386-3d1d6001bbd3 | Ubuntu-2204 | SHUTOFF | private=10.0.0.252, 192.168.100.100 | Ubuntu2204 | m1.medium | +--------------------------------------+----------------------+---------+-------------------------------------+------------+-----------+ |
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