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random-number-controller

This project is a sample Kubebuilder controller that demonstrates a few different testing approaches.

The controller itself is straightforward, it defines a CRD that outlines how much "entropy" you'd like in your random number and then generates a ConfigMap with a random number in it that is guaranteed to be random because it was the result of a fair die roll.

Testing Strategies

There are three types of tests in here:

  1. Tests using a fake client from the Kubernetes controller-runtime project
  2. Tests using an API server spun up by envtest
  3. End to end tests run against a kind or colima cluster provisioned by a script in the repo

The goal of this repository is to help outline the drawbacks/benefits of each test type and enable you to write more tests against your own custom controllers.

NOTE: Run make --help for more information on all potential make targets

More information can be found via the Kubebuilder Documentation

License

Copyright 2022.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.