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Cybersecurity Lead, PwC
Amazon Web Services (AWS) recently unveiled built-in support for enforcing Kubernetes network policies for its native VPC CNI, a move that has been eagerly anticipated by the developer community. This enhancement paves the way for more secure and streamlined pod-to-pod communications within Kubernetes clusters.
Otterize, in their recent post, sheds light on the significance of this development. Kubernetes, by default, permits unrestricted communication between all pods. The introduction of Kubernetes network policies empowers developers to curtail traffic, ushering in a zero-trust environment for workloads within a cluster.
Previously, the norm was to deploy an external network policy controller or to overhaul the CNI entirely. Such measures, especially for pre-existing clusters, often led to intricate challenges. The ideal scenario for many is to utilize the VPC CNI, ensuring direct communication between Kubernetes pods and other workloads within the VPC network.
Yet, implementing network policies is no walk in the park. The Otterize team candidly discusses the hurdles:
Otterize offers a solution in the form of their open-source intents operator and network mapper. These tools address the aforementioned challenges and extend their capabilities to manage other access controls, including Kafka ACLs, Istio authorization policies, and the soon-to-be-released AWS RDS PostgreSQL and AWS IAM policies.
The Otterize team suggests a novel approach:
For those eager to dive in, Otterize has curated a comprehensive tutorial on AWS EKS CNI. This guide ensures that users can seamlessly navigate the new features and integrations.
In essence, while AWS lays the foundational infrastructure, Otterize offers tools that refine and enhance the Kubernetes networking experience. As Kubernetes solidifies its position in the container orchestration domain, these advancements signal a shift towards more secure and efficient application communications. With AWS's infrastructure enhancements and Otterize's innovative solutions, the tech community stands to gain immensely.
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