A kubectl-style pizza orchestrator built with .NET System.CommandLine.
Playful, but designed to showcase all the key features of the library — from parsing and validation to tab completion, custom help, and testable command handlers.
kubepizza is a demo CLI that simulates managing pizza orders like Kubernetes manages pods.
It’s built to support a live session or workshop titled:
“CLI-first: Modern command-line apps with System.CommandLine”
Through a series of progressive demos, it illustrates how to create modern, structured, and testable command-line tools in .NET.
| Step | Topic | Example Command | Features Highlighted |
|---|---|---|---|
| 1 | Basic command and parameter parsing | kubepizza order create --pizza margherita --size large --toppings basil,mozzarella |
Arguments, options, parsing |
| 2 | Commands and subcommands | kubepizza order list, kubepizza topping add |
Nested commands, aliases, global options |
| 3 | Parameter validation | kubepizza order create --size small --toppings mozzarella,cheddar,parmesan |
Validation rules, error messages |
| 4 | Tab completion | kubepizza order create --pizza [TAB] |
Dynamic completions, AddCompletions() |
| 5 | Custom help | kubepizza order create --help |
Custom HelpBuilder, rich descriptions |
| 6 | Final application | kubepizza order list --output table |
Middleware, formatting, testable handlers |
- Understand the core concepts of System.CommandLine (
RootCommand,Option,Argument,CommandHandler). - Learn how to structure and test CLI applications in .NET.
- Discover built-in features: autocomplete, validation, help generation, and dependency injection.
- Build a production-grade CLI using the same library that powers the .NET SDK tools.