Operator Concepts
Master the Kubernetes Operator pattern and learn how to build intelligent controllers that manage complex applications automatically.
Prerequisites
What You Should Know Before Starting
Essential knowledge for understanding Operator concepts
- Understanding of CRDs and Custom Resources
- Basic knowledge of Go programming
- Experience with Kubernetes controllers
- Familiarity with event-driven programming
Learning Topics
Operator Pattern
Understanding the Kubernetes Operator pattern and its benefits
Learning Objectives:
- •Operator Architecture
- •Controller Pattern
- •Reconciliation Loop
- •Event-driven Design
- •State Management
Controller Development
Building controllers to manage custom resources
Learning Objectives:
- •Controller Framework
- •Event Handling
- •Reconciliation Logic
- •Error Handling
- •Testing Strategies
Operator SDK
Using the Operator SDK for rapid operator development
Learning Objectives:
- •SDK Installation
- •Project Scaffolding
- •Code Generation
- •Testing Tools
- •Deployment
Operator Lifecycle
Managing operator deployment, updates, and maintenance
Learning Objectives:
- •Deployment Strategies
- •Version Management
- •Rolling Updates
- •Monitoring
- •Troubleshooting
Key Concepts
Operator Pattern
A method of packaging, deploying, and managing Kubernetes applications.
- • Application-specific controllers
- • Domain knowledge encoding
- • Automated operations
- • Self-healing capabilities
Controller Logic
The core logic that watches and reconciles desired state.
- • Event-driven architecture
- • Reconciliation loops
- • State management
- • Error handling
Operator SDK
Framework for building operators with best practices.
- • Code generation tools
- • Testing frameworks
- • Deployment automation
- • Best practice templates
Lifecycle Management
Managing operator deployment and maintenance.
- • Deployment strategies
- • Version management
- • Monitoring and alerting
- • Troubleshooting techniques
Operator Development Process
1. Design
Design the operator architecture and resource model.
2. Develop
Implement the controller logic and reconciliation.
3. Test
Test the operator with various scenarios and edge cases.
4. Deploy
Deploy and monitor the operator in production.
Ready to Continue?
Master Operator concepts, then explore real-world operators like Prometheus Operator.