January 2018
Intermediate to advanced
524 pages
13h 33m
English
Content preview from Internet of Things for Architects
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Heat – orchestration (optional)
Heat can launch multiple composite cloud applications and manage cloud infrastructure based on templates on an OpenStack instance. Heat integrates with telemetry to autoscale a system to match load needs. Templates in Heat try to comply with AWS CloudFormation formats, and relationships between resources can be specified in a similar manner (for example, this volume is connected to this server).
A Heat template may resemble the following:
heat_template_version: 2015-04-30 description: example template resources: my_instance: type: OS::Nova::Server properties: key_name: { get_param: key_name } image: { get_param: image } flavor: { get_param: flavor } admin_pass: { get_param: admin_pass } user_data: str_replace: ...
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