Kubernetes webhook example

This example is to illustrate problems in network communication using EKS, Calico and webhooks.

Webhook rule

This example uses a ValidatinAdmissionWebhook that expects Deployments to be called dallas-demo if they have annotation tunde.meetup.com/prod: "true".

Based on this example:

• https://banzaicloud.com/blog/k8s-admission-webhooks/
• https://github.com/ssdowd/k8s-example-admission-controller/tree/4688a9226571aa1400aebe2ac997b934eb1e109e