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Kubernetes Network Policy Recipes

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Kubernetes Network Policy Recipes

What is Kubernetes Network Policy Recipes

A Fake Protocol Server tool with support for multiple network services and protocols.

This repository contains various use cases of Kubernetes Network Policies

This repository features a variety of use cases for Kubernetes Network Policies, along with sample YAML files that you can use in your setup. If you've ever wondered how to drop or restrict traffic to applications running on Kubernetes, this is the place to start. The easiest way to experiment with Network Policies is by creating a new Google Kubernetes Engine cluster. Applying Network Policies to your existing cluster may disrupt your networking configuration. As of now, most cloud providers do not offer built-in support for network policies. If you are not familiar with Network Policies, I recommend reading my article on Securing Kubernetes Cluster Networking first. NetworkPolicies function at layer 3 or 4 of the OSI model, which corresponds to the IP and port levels.

They are used to control traffic flow...

They are used to manage the traffic coming into (ingress) and going out of (egress) pods. An empty selector will match all traffic.

Understanding spec.podSelector in NetworkPolicies

{} applies the policy to all pods within the current namespace. Selectors can only target Pods that reside in the same namespace as the NetworkPolicies. For example, the spec.podSelector of an ingress rule is limited to selecting pods that are also in the same namespace.

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