Kubernetes Network Policies
How does a network security policy safeguard a company’s network?
A well-crafted network security policy can help protect a company’s network. You can create the policy in-house or hire the expertise of a cyber security business with experience designing security policies.
How does Kubernetes control traffic?
In Kubernetes, that capability is implemented by network plugins and managed by network policies. Note that network policies are not a substitute for firewalls.
What is the purpose of Network Policy?
Network policies are sets of conditions, and settings that allow you to designate who is authorized to connect to the network and the circumstances under which they can or cannot connect.
Is Kubernetes Network policy stateful or stateless?
Network Policy is stateful and will allow an established connection to communicate both ways.
Is Network Policy a namespace?
Keep in mind that a Network Policy is applied to a particular Namespace and only selects pods in that particular kubernetes Namespace.
kubernetes Network Policlies
Everyone agrees that Kubernetes clusters are insecure by default. But the good news is that Kubernetes provides the tools to make that happen. In this article, we’re going to learn about one of the resources that K8s provides straight out of the box to help make your deployed apps more secure: Network policies.
A Kubernetes network policy specifies how pods can communicate with one another and other network endpoints in a Kubernetes cluster. Network policies provide fine-grained control over network traffic, allowing you to partition your network and secure your applications. They allow you to set incoming and outgoing traffic rules for pods and are implemented in the Kubernetes cluster using a CNI plugin like Calico or Weave Net.