In May 2019, Network Policies on Azure Kubernetes Service (AKS) became generally available through the Azure native policy plug-in or through the community project Calico.
Note: for its 1-year anniversary, I refreshed this blog article in November 2019 to leverage new features with Helm 3 and Azure Pipelines (mainly YAML for both Build/CI and Release/CD), as well as to incorporate great feedback we’ve been receiving from our readers.