Okay, check this out: you install a containerized application on your Kubernetes cluster, which manages other applications for you. That’s what Kubernetes operators are in a nutshell. But let’s start from the beginning. Reconciliation Kubernetes, like other orchestrators, is stuck in an eternal loop - the control loop. It checks what the world looks like, compares it to its note on how the world is SUPPOSED to look like, and performs operations to make reality resemble the desired state.