Ruby Kubernetes Operator

If you do not want to create your operators for kubernetes in golang, it is difficult to find good frameworks. This gem is used to implement a few basic functions and to quickly create your own operators based on ruby. It is not a framework, so the YAML CRDs still have to be created by hand.

How it works?

  • Watch changes on CR.
  • Trigger Actions for Add,Update or Delete
  • Handle the finalizer on create and after delete

KubernetesOperator.png

Installation

The gem is hosted on rubygems.org, so you can install it with ...

gem install kubernetes-operator

... or with bundler in your Gemfile.

Example

crdGroup = "exmaple.com"
crdVersion = "v1alpha1"
crdPlural = "myres"

def my_custom_action(obj,k8sclient)
    puts "Do some cool stuff for #{obj["metadata"]["crd_status"]} action of #{obj["metadata"]["name"]}"
end

opi = KubernetesOperator.new(crdGroup,crdVersion,crdPlural)
opi.setAddMethod(method(:my_custom_action))
opi.run()