*       code, or even to discover <i>any</i> two distinct inputs that yield the same result. These
 *       are called <i>cryptographic hash functions</i>. But, whenever it is learned that either of
 *       these feats has become computationally feasible, the function is deemed "broken" and should
 *       no longer be used for secure purposes. (This is the likely eventual fate of <i>all</i>

But for now, let's check these important **conceptual ideas**. These concepts also apply to any other type of web API. 💡

## Security - HTTPS

In the [previous chapter about HTTPS](./https.md){.internal-link target=_blank} we learned about how HTTPS provides encryption for your API.

We also saw that HTTPS is normally provided by a component **external** to your application server, a **TLS Termination Proxy**.

# Alternatives, Inspiration and Comparisons

What inspired **FastAPI**, how it compares to other alternatives and what it learned from them.

## Intro

**FastAPI** wouldn't exist if not for the previous work of others.

There have been many tools created before that have helped inspire its creation.

			}
			os.Exit(2)
		}
		fatalf("parsing %s: %s", name, err)
	}
	return ast1
}

func sourceLine(n ast.Node) int {
	return fset.Position(n.Pos()).Line
}

// ParseGo populates f with information learned from the Go source code
// which was read from the named file. It gathers the C preamble
// attached to the import "C" comment, a list of references to C.xxx,
// a list of exported functions, and the actual AST, to be rewritten and

* Allow anonymous API server access, decorate authenticated users with system:authenticated group ([#32386](https://github.com/kubernetes/kubernetes/pull/32386), [@liggitt](https://github.com/liggitt))

- Kubeadm: added the experimental (alpha) feature gate `EtcdLearnerMode` that allows etcd members to be joined as learner and only then promoted as voting members ([#113318](https://github.com/kubernetes/kubernetes/pull/113318), [@pacoxu](https://github.com/pacoxu))

- `kubeadm`: promoted feature gate `EtcdLearnerMode` to `beta`. Learner mode for
  joining `etcd` members is now enabled by default. ([#120228](https://github.com/kubernetes/kubernetes/pull/120228), [@pacoxu](https://github.com/pacoxu))

every day--'

  `I'VE been to a day-school, too,' said Alice; `you needn't be
so proud as all that.'

  `With extras?' asked the Mock Turtle a little anxiously.

  `Yes,' said Alice, `we learned French and music.'

  `And washing?' said the Mock Turtle.

  `Certainly not!' said Alice indignantly.

  `Ah! then yours wasn't a really good school,' said the Mock

every day--'

  `I'VE been to a day-school, too,' said Alice; `you needn't be
so proud as all that.'

  `With extras?' asked the Mock Turtle a little anxiously.

  `Yes,' said Alice, `we learned French and music.'

  `And washing?' said the Mock Turtle.

  `Certainly not!' said Alice indignantly.

  `Ah! then yours wasn't a really good school,' said the Mock

* Added scheduler integration test owners. ([#46930](https://github.com/kubernetes/kubernetes/pull/46930), [@k82cn](https://github.com/k82cn))
* `kubectl run` learned how to set a service account name in the generated pod spec with the `--serviceaccount` flag. ([#46318](https://github.com/kubernetes/kubernetes/pull/46318), [@liggitt](https://github.com/liggitt))