Heat/ConvergenceDesign
Contents
Convergence Design
This page proposes the design for the convergence blueprints.
Note: Currently this page does not address design for 3rd blueprint "Convergence continuous observer"
Flow Diagrams
Flowchart
Sequence
Data Model Change
Data model for persisting the graph
Add a new table 'resource_graph'
| Column name | Type | Constraint |
|---|---|---|
| resource_id | varchar(36) | NOT NULL ForeignKey resource.id |
| needed_by | varchar(36) | NULL ForeignKey resource.id |
| stack_id | varchar(36) | NOT NULL ForeignKey stack.id |
| retry_count | Integer | Default (0) |
| observed_ready | Boolean | Default False |
Stack Create Flow
- Heat engine parses the template and upon successful validation it persists the template, stack ,all the resources and the graph. [Currently only stack and template are stored as part of stack.store() ]
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