In my previous article, I discussed how two frameworks can generate the basic structure for a Kubernetes Operator. I would discuss how to build on top of the base generated by the framework, so I would go through how to build an operator with simple functionality. If you are don’t know about Kubernetes operators check out the session where I talk about operators in detail.
I will be building an operator for Locust. Locust is a framework for load testing written in python. It is easy to use and supports distributed mode for simulating a higher load. But running locust in distributed mode needs more effort and a good understanding of infrastructure.
Main functions expected from Locust Operator:
operator-sdk new locust-operator --repo=github.com/amila-ku/locust-operator operator-sdk add api --api-version=locustload.cndev.io/v1alpha1 --kind=Locust
Defining the API of Locust custom resource.
type definitions are created under_ pkg_/_api/locustload/v1alpha1/ _in locust_types.go file, struct is already generated by operator SDK with a default value but I would replace with values for our locust operator.
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