OpenStack Victoria : How to use Heat2021/09/01 |
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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 ] | | [ Network Node ] | | [ Compute Node ] |
| | | | | |
| MariaDB RabbitMQ | | L2 Agent | | Libvirt |
| Memcached httpd | | L3 Agent | | Nova Compute |
| Keystone Glance | | Metadata Agent | | L2 Agent |
| Nova API | | Cinder Volume | | |
| Neutron Server | | Heat API | | |
| Metadata Agent | | Heat Engine | | |
| Cinder API | | | | |
+-----------------------+ +-----------------------+ +-----------------------+
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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: 2018-08-31
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 | +--------------------------------------+----------+--------+ | 773971b3-b4be-4b07-aa06-fe8ca76b395d | Debian11 | active | +--------------------------------------+----------+--------+root@dlp ~(keystone)# openstack network list +--------------------------------------+---------+--------------------------------------+ | ID | Name | Subnets | +--------------------------------------+---------+--------------------------------------+ | 70d34670-7e68-4605-816b-244634a0a323 | public | 103cd703-3fc3-429a-a68b-52643757c619 | | f30adecb-7c0b-4829-a5bd-d0836b3bffe2 | private | b2892d90-0b42-4785-b666-15688d9aaa5d | +--------------------------------------+---------+--------------------------------------+root@dlp ~(keystone)# Int_Net_ID=$(openstack network list | grep private | awk '{ print $2 }')
# create an instance from the template root@dlp ~(keystone)# openstack stack create -t sample-stack.yml --parameter "ImageID=Debian11;NetID=$Int_Net_ID" Sample-Stack +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | id | e7dcf189-1d05-4dae-b6a3-4f1904acf34a | | stack_name | Sample-Stack | | description | Heat Sample Template | | creation_time | 2021-09-01T07:02:19Z | | 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 | +--------------------------------------+--------------+----------------------------------+-----------------+----------------------+--------------+ | e7dcf189-1d05-4dae-b6a3-4f1904acf34a | Sample-Stack | 14c0b23f6f574380b9687f326debf0fe | CREATE_COMPLETE | 2021-09-01T07:02:19Z | None | +--------------------------------------+--------------+----------------------------------+-----------------+----------------------+--------------+ # the instance is running which is created from the Heat template root@dlp ~(keystone)# openstack server list +--------------------------------------+----------------------+--------+-------------------------+----------+----------+ | ID | Name | Status | Networks | Image | Flavor | +--------------------------------------+----------------------+--------+-------------------------+----------+----------+ | 20ea9326-21e6-4b41-9ac3-d8a4a27fc49f | Heat_Deployed_Server | ACTIVE | private=192.168.100.190 | Debian11 | 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 | +----------------------------------+------------------+ | 4af6360cc5e9401facb11c6be1dc195d | heat_stack_user | | 7ed27a42efa24dd1a27779ae69616932 | CloudUser | | 87834083807a4b2ca66e0fad9cb580d6 | heat_stack_owner | | 9362e495e39146f1b7e2c65fae07ce0b | member | | 976f11c0ba9e43d2ac03f4eec8a685d9 | reader | | c42a706b07e3483ba5e4908323d969cb | admin | +----------------------------------+------------------+root@dlp ~(keystone)# openstack project list +----------------------------------+-----------+ | ID | Name | +----------------------------------+-----------+ | 14c0b23f6f574380b9687f326debf0fe | admin | | 1718217eee4b4f2ea143d65122864fe0 | service | | cba75a02a921457db62b660f3d0b57c4 | hiroshima | +----------------------------------+-----------+root@dlp ~(keystone)# openstack user list +----------------------------------+-------------------+ | ID | Name | +----------------------------------+-------------------+ | 54aecf16eff14eb788485d1586313818 | admin | | 103e8869feb649ab9f9fe7f864bdf651 | glance | | f87e87b4c7b7483186d6f3288fed268a | nova | | bfc86277128749928fca04fc14b3ea3a | placement | | c05a94c3ae6c472781d2646768369ce3 | neutron | | 62a91aa559f64acab11861ed7cd51ecc | serverworld | | 6c4b57a3252547259839003f6ab0d6a4 | cinder | | f04581c155934b7d9bda9689bd5ef779 | heat | | 512e86bea4bd493eaa3cca9b0c040a9e | 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
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-api neutron-rpc-server
# that's OK, common users can create stacks debian@dlp ~(keystone)$ openstack stack list +--------------------------------------+--------------+-----------------+----------------------+--------------+ | ID | Stack Name | Stack Status | Creation Time | Updated Time | +--------------------------------------+--------------+-----------------+----------------------+--------------+ | f53620dd-1624-4ffc-9f95-adb57deaff51 | Sample-Stack | CREATE_COMPLETE | 2021-09-01T07:08:33Z | None | +--------------------------------------+--------------+-----------------+----------------------+--------------+ |
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