OpenStack Yoga : How to use Heat2022/04/06 |
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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
+-----------+-----------+ +-----------+-----------+ +-----------+-----------+
| [ Control Node ] | | [ Storage Node ] | | [ Compute Node ] |
| | | | | |
| MariaDB RabbitMQ | | Open vSwitch | | Libvirt |
| Memcached httpd | | Neutron Server | | Nova Compute |
| Keystone Glance | | OVN-Northd | | Open vSwitch |
| Nova API | | Cinder Volume | | OVN Metadata Agent |
| Cinder API | | iSCSI Target | | OVN-Controller |
| | | Heat API/Engine | | |
+-----------------------+ +-----------------------+ +-----------------------+
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| [1] | Deploy Instances with Heat services and templates. The example below is on the Controle 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 | +--------------------------------------+------------+--------+ | 53f6415a-1f98-485f-be0b-3f80edf523df | Ubuntu2004 | active | +--------------------------------------+------------+--------+root@dlp ~(keystone)# openstack network list +--------------------------------------+---------+--------------------------------------+ | ID | Name | Subnets | +--------------------------------------+---------+--------------------------------------+ | 669dbb8b-17b9-4b1c-ba1a-34b24f1afaf1 | public | ca423ec5-7604-403f-92ca-14f81ee603cd | | 8cba72d5-e8c6-4003-9f68-5bb79c89ecc9 | private | e8c96f5c-0035-4966-a263-a84c54085d1e | +--------------------------------------+---------+--------------------------------------+root@dlp ~(keystone)# Int_Net_ID=$(openstack network list | grep private | awk '{ print $2 }')
# create an instance from the template root@dlp ~(keystone)# openstack stack create -t sample-stack.yml --parameter "ImageID=Ubuntu2004;NetID=$Int_Net_ID" Sample-Stack +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | id | 918e8f04-f7e7-416a-b9ee-b174c998c63b | | stack_name | Sample-Stack | | description | Heat Sample Template | | creation_time | 2022-04-06T06:56:04Z | | 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 | +--------------------------------------+--------------+----------------------------------+-----------------+----------------------+--------------+ | 918e8f04-f7e7-416a-b9ee-b174c998c63b | Sample-Stack | ddb7c08ba73a48eea040270d13a7b0cf | CREATE_COMPLETE | 2022-04-06T06:56:04Z | None | +--------------------------------------+--------------+----------------------------------+-----------------+----------------------+--------------+ # the instance is running which is created from the Heat template root@dlp ~(keystone)# openstack server list +--------------------------------------+----------------------+--------+-------------------------+------------+----------+ | ID | Name | Status | Networks | Image | Flavor | +--------------------------------------+----------------------+--------+-------------------------+------------+----------+ | e86641a5-912f-4bc8-a352-a3372ccfcd50 | Heat_Deployed_Server | ACTIVE | private=192.168.100.164 | Ubuntu2004 | 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 common users, it needs to change some settings. |
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root@dlp ~(keystone)# openstack role list +----------------------------------+------------------+ | ID | Name | +----------------------------------+------------------+ | 18131267bfb04d78a58221442aecc388 | heat_stack_owner | | 2d9d1a4b052d402795c8bf5f9f83a1b7 | heat_stack_user | | 3eca53d4474f4d81bf2c85c8ea238f7c | reader | | 7eea1df857244828afbf10ac46356b23 | CloudUser | | dbd8fff588c74deaa4e2192ba1d92933 | member | | f125eaa73aed4ea2ba2b7cba02acd42c | admin | +----------------------------------+------------------+root@dlp ~(keystone)# openstack project list +----------------------------------+-----------+ | ID | Name | +----------------------------------+-----------+ | c043fb355eff47e69642adfcd7a55620 | service | | d3434f55aa5541cfab5f13916da0697d | hiroshima | | ddb7c08ba73a48eea040270d13a7b0cf | admin | +----------------------------------+-----------+root@dlp ~(keystone)# openstack user list +----------------------------------+-------------------+ | ID | Name | +----------------------------------+-------------------+ | a8f07b80a7b34425a7778dee92319ef1 | admin | | 924b949b9fcd440abc7def686443cc21 | glance | | bcb1420b3c5145289f7f99e55a477705 | nova | | 2de5e07505a548829776022cd469ff64 | placement | | 5cd4b73f2cd74402b56be5c672dcfaa7 | neutron | | 95f196a1851c4b93b016871f7d5ded82 | serverworld | | 0bad5b870b814ba69014ae8c6a4f7ec2 | cinder | | 4922ef9d42f44be097324b38c6454ab8 | heat | | 99e220e856b94f29bae9c1f1e7b60ae7 | 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
# on the Node Neutron Server is running, change settings root@dlp ~(keystone)# vi /etc/neutron/policy.json # create new # overwrite some settings
{
"create_port:fixed_ips:subnet_id": "",
"create_port:allowed_address_pairs": "",
"create_port:allowed_address_pairs:ip_address": "",
}
root@dlp ~(keystone)# systemctl restart neutron-server
# that's OK, common users can create stacks ubuntu@dlp ~(keystone)$ openstack stack list +--------------------------------------+--------------+-----------------+----------------------+--------------+ | ID | Stack Name | Stack Status | Creation Time | Updated Time | +--------------------------------------+--------------+-----------------+----------------------+--------------+ | 357508bd-2b99-4055-8545-8a66b0ceba1f | Sample-Stack | CREATE_COMPLETE | 2022-04-06T07:03:59Z | None | +--------------------------------------+--------------+-----------------+----------------------+--------------+ubuntu@dlp ~(keystone)$ openstack server list +--------------------------------------+----------------------+---------+------------------------------------+------------+----------+ | ID | Name | Status | Networks | Image | Flavor | +--------------------------------------+----------------------+---------+------------------------------------+------------+----------+ | 4342a3bf-c1ca-482c-9a92-74af7c142c8a | Heat_Deployed_Server | ACTIVE | private=192.168.100.37 | Ubuntu2004 | m1.small | | 7ea894ee-3a91-4541-96ba-717ff45917c5 | Ubuntu-2004 | SHUTOFF | private=10.0.0.230, 192.168.100.12 | Ubuntu2004 | m1.small | +--------------------------------------+----------------------+---------+------------------------------------+------------+----------+ |
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