kopf
by nolar
Kopf is a Python framework that simplifies writing Kubernetes operators with minimal code using a declarative and Pythonic approach.
A Python framework to write Kubernetes operators in just a few lines of code
Primary Use Case
Kopf is designed for developers and DevOps engineers who want to automate Kubernetes custom resource management by writing operators in Python quickly and efficiently. It enables the creation of Kubernetes operators that encapsulate domain logic to manage infrastructure as code, enhancing security automation and DevSecOps workflows.
- Create full-featured Kubernetes operators with just a Dockerfile and a Python file
- Declarative handler registration via Python decorators
- Support for synchronous and asynchronous event handlers
- Automatic marshalling between Kubernetes resources and Python handler arguments
- Support for custom and built-in Kubernetes resources, including multi-resource and cluster or namespace scoped operators
- Advanced event handling including low-level, high-level, field-specific, conditional sub-handlers, timers, daemons, and admission webhooks
- Robust retry mechanisms with custom limits and persistence across operator restarts
- In-memory indexing, filtering, and storage containers for resource-specific data
Installation
- Install Kopf via pip: pip install kopf
- Create a Python file defining your operator handlers using Kopf decorators
- Build a Docker image including your operator code and dependencies
- Deploy the operator container image to your Kubernetes cluster
Usage
>_ pip install kopfInstalls the Kopf framework Python package.
>_ kopf run my_operator.pyRuns a Kubernetes operator defined in the Python file 'my_operator.py'.
- Leverage Kopf to automate remediation workflows by writing custom operators that detect and respond to anomalous Kubernetes resource states.
- Integrate Kopf-based operators into CI/CD pipelines to enforce security policies and automate infrastructure compliance checks.
- Use Kopf to build operators that monitor and react to suspicious container behaviors, enhancing runtime security detection capabilities.
- Combine Kopf with Kubernetes admission webhooks to enforce security controls dynamically during resource creation or modification.
- Employ Kopf for purple team exercises by simulating attacker behaviors via custom operators to test detection and response mechanisms.
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