Kubernetes Operators#

Operators are Kubernetes native applications

Gone are the days of deploying an etcd cluster using a complicated collection of stateful sets, crds, services, and init containers to manage bootstrapping and lifecycle management, et cetera

  • Operators are software written to encapsulate all of those operational considerations for a specific Kubernetes application: configuration, deployment, upgrades, monitoring and failure-handling

stateless is easy, stateful is hard

Database operators allow Kubernetes users to safely deploy and manage certain databases without needing to build their own workarounds

  • Human knowledge as code

Sources#