Core concepts

Now that you’ve completed the Quickstart, let’s explore Flyte’s core concepts through working examples.

By the end of this section, you’ll understand:

• TaskEnvironment: The container configuration that defines where and how your code runs
• Tasks: Python functions that execute remotely in containers
• Runs and Actions: How Flyte tracks and manages your executions
• Apps: Long-running services for APIs, dashboards, and inference endpoints

Each concept is introduced with a practical example you can run yourself.

How Flyte works

When you run code with Flyte, here’s what happens:

1. You define a TaskEnvironment that specifies the container image and resources
2. You decorate Python functions with @env.task to create tasks
3. When you execute a task, Flyte creates a run that tracks the execution
4. Each task execution within a run is an action

Let’s explore each of these in detail.