OpenStack Caracal : How to use Heat2024/04/09 |
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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 | | Neutron L2/L3 Agent | | Libvirt |
| Memcached Nginx | | Neutron Metadata | | Nova Compute |
| Keystone httpd | | Open vSwitch | | Neutron L2 Agent |
| Glance Nova API | | iSCSI Target | | Open vSwitch |
| Neutron Server | | Cinder Volume | | |
| Neutron Metadata | | Heat API/Engine | | |
| Cinder API | | | | |
+-----------------------+ +-----------------------+ +-----------------------+
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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 | +--------------------------------------+------------+--------+ | 76820d6f-918b-44ac-ad2f-c8075456ff45 | Ubuntu2204 | active | +--------------------------------------+------------+--------+root@dlp ~(keystone)# openstack network list +---------------------------------+---------+----------------------------------+ | ID | Name | Subnets | +---------------------------------+---------+----------------------------------+ | 24288203-5512-40c5-8bcb- | public | 0b39a7b6-3b03-4704-ba32- | | aed6dffc2bc1 | | 89e5894bad2c | | b28ad879-8bbf-40fe-b2fb- | private | 42dd9fb5-a0f2-4556-b896- | | af772cf88a8a | | 6257cb5119f6 | +---------------------------------+---------+----------------------------------+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 | bc9c570b-2ff9-4650-8fb4-72b6e5ba49f2 | | stack_name | Sample-Stack | | description | Heat Sample Template | | creation_time | 2024-04-09T06:58:26Z | | 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 | +------------+------------+------------+--------------+---------------+--------------+ | bc9c570b- | Sample- | 62980715ee | CREATE_COMPL | 2024-04- | None | | 2ff9-4650- | Stack | 6d434eaf4e | ETE | 09T06:58:26Z | | | 8fb4- | | fddd9b63e9 | | | | | 72b6e5ba49 | | d6 | | | | | f2 | | | | | | +------------+------------+------------+--------------+---------------+--------------+ # the instance is running which is created from the Heat template root@dlp ~(keystone)# openstack server list +--------------+--------------+--------+---------------+------------+----------+ | ID | Name | Status | Networks | Image | Flavor | +--------------+--------------+--------+---------------+------------+----------+ | bf1c1167- | Heat_Deploye | ACTIVE | private=192.1 | Ubuntu2204 | m1.small | | 184d-403d- | d_Server | | 68.100.84 | | | | b468- | | | | | | | aa3c07c28af3 | | | | | | +--------------+--------------+--------+---------------+------------+----------+ # 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 | +----------------------------------+------------------+ | 3d69f0474abe48869999014caae40558 | admin | | 44bca5dd1676498996c6ca78f2b61cd2 | service | | 4cb545b66c61411f8c75d65708d650e9 | reader | | 68ac49b978524b0a99060b177ea96f60 | manager | | 6b2003ce3c3241aaaf6a70ea3e814de7 | member | | c563d10b879d48b5bf9013515f0a410f | heat_stack_user | | cd14b829a842488188299462ff4dd37e | heat_stack_owner | +----------------------------------+------------------+root@dlp ~(keystone)# openstack project list +----------------------------------+-----------+ | ID | Name | +----------------------------------+-----------+ | 2bcdd2fecf1d4a8c8faf87f1232cf365 | hiroshima | | 62980715ee6d434eaf4efddd9b63e9d6 | admin | | c9a28e6f0f794ccf889c115bb9c2872c | service | +----------------------------------+-----------+root@dlp ~(keystone)# openstack user list +----------------------------------+-------------------+ | ID | Name | +----------------------------------+-------------------+ | 27a667fb6dd84abf950add9f36ad72ae | admin | | 98cc3b3090fa4f2683b0fd77ad849fe4 | glance | | 14118344ffac4cd180e77dedd181fa53 | nova | | 2bdae31834f3416a8eab803b5f25ef82 | placement | | bb6b7624bc6b45bdae1125db005133ff | neutron | | e682843492a44937b745ef945bfacf70 | serverworld | | 0f0b38d9c3a5423ebbdf92d26fcf3ddf | cinder | | a57f5ef4320d4944a6cc7e6372ada879 | heat | | 34ad5075ff2b4ef5a5f51e7278eacd04 | 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 | +---------------+--------------+---------------+----------------+--------------+ | b89ffe65- | Sample-Stack | CREATE_COMPLE | 2024-04- | None | | 150a-44fe- | | TE | 09T07:01:20Z | | | 8dfd- | | | | | | 23d2726c4cfb | | | | | +---------------+--------------+---------------+----------------+--------------+ubuntu@dlp ~(keystone)$ openstack server list +--------------+--------------+---------+--------------+------------+----------+ | ID | Name | Status | Networks | Image | Flavor | +--------------+--------------+---------+--------------+------------+----------+ | c41e770c- | Heat_Deploye | ACTIVE | private=192. | Ubuntu2204 | m1.small | | ec24-4cdf-bc | d_Server | | 168.100.78 | | | | 5c- | | | | | | | 86af5897344a | | | | | | | e7feb65c- | Ubuntu-2204 | SHUTOFF | private=10.0 | Ubuntu2204 | m1.small | | 1482-48a9- | | | .0.250, 192. | | | | 9d45- | | | 168.100.188 | | | | e74196a5ea92 | | | | | | +--------------+--------------+---------+--------------+------------+----------+ |
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