04. Design

Goals

• User friendly interface
• Idempotent Create/Delete Operations
• Undo File
• Nagios Checks
• Provide a Synchronous Flow on top of a Asynchronous API
• Reduce the commands necessary to accomplish our tasks
• (Needs Work) API Sequencing, enforced by AWS CLI

CLI Best Practices

• Be easy to use: Commands, Arguments, and Options
• Be Helpful and delight casual users
• Make configuration Easy
• Test, Test, Test
• Be Easy to Maintain and Distribute Painlessly
• Add Color, Formatting, and Iteractivity
• Common-Line Libraries:

Layers

1. Thor - Provides a structure to implement CLI best practices.
2. Zaws - The brains of the Zynx Implementation
3. AWS CLI - Provides a unified access to AWS
4. AWS IAAS - Cloud resources.