How can you develop an Operator?
The process is straightforward, and we have already covered some parts of this question. In general, to develop your Operator, you must follow these steps:
- Prepare the architecture: You must define all requirements (functional and non-functional), understand how your Operator will behave, and determine what exactly it should be responsible for. Here are the requirements for a sample Kubernetes Operator:
- Functional: The Operator should create, update, and delete Kubernetes resources (e.g., Deployments, Services, and CMs) based on the CR’s spec, ensuring that the application maintains the desired state. The Operator should update the CR’s
statusfield to reflect the current state of the application (e.g., number of running Pods, readiness state, etc.) and provide feedback for debugging and monitoring. - Non-functional: The Operator must handle a large number of CRs and manage them efficiently, even in high-demand...
- Functional: The Operator should create, update, and delete Kubernetes resources (e.g., Deployments, Services, and CMs) based on the CR’s spec, ensuring that the application maintains the desired state. The Operator should update the CR’s
