Network Controls in the DevSecOps life cycle

Network controls and segmentation methods allow you to control, segregate, and visualize Kubernetes traffic. These methods help you isolate tenants and better secure communications flow between containerized applications and microservices.

August is “Network Controls” month in Red Hat’s monthly Security series! Since March 2021, the Red Hat Security Ecosystem team has published monthly articles and videos on DevOps Security topics to help you learn how Red Hat can help you master the practice called DevSecOps. 

By explaining how to assemble Red Hat products and introducing our security ecosystem partners, we aim to aid in your journey to deploying a comprehensive DevSecOps solution.

Network controls defined

Network controls are typically implemented in a running Kubernetes cluster, and the goal is to provide a defense-in-depth approach to protect Kubernetes network traffic. The following security methods make up the Network Controls category:

• CNI / SDN: Software-defined networking (SDN), which provides a programmable, adaptable network fabric that is provisioned in real-time to support dynamic networking security requirements and is typically implemented with a container networking interface (CNI).

• Network Policies: control traffic flows at the IP address or port level, and can be enhanced with cluster ingress and egress traffic controls, logging and network visualization. 

• Ingress, Egress Traffic Controls: provide protection of network traffic within a running cluster between pods.

• Hardening Service Mesh: includes network segmentation, authentication  and authorization for containerized applications and microservices.

• Network Visualization: provides a graphical user interface showing the network traffic and relationships in order to control and identify suspicious activity.

• Packet Analysis: capturing live pod network traffic to typically debug issues in the communication between services.

• API Management: controlling access to APIs and securing API traffic.

Network controls integrated in DevSecOps

As pictured in the DevSecOps framework below, network controls integrations are typically found on the right side of the DevSecOps life cycle in a running cluster. The table that follows details some, but not all, of the common integrations to consider for network controls. 

Enhance and extend Network Controls with Red Hat partners

Combining Red Hat OpenShift Container Platform Network Control features with Red Hat’s certified ecosystem security partners can help your organization's DevSecOps practice.  

If you are looking to enhance and extend Red Hat’s security capabilities in Network Controls, take a look at the following Red Hat Partners:

• Aqua Security free trial and Operator.

• Palo Alto Prisma Cloud Compute Edition and webinar.

• Sysdig free trial and webinar.

• Tigera Calico Enterprise and Operator.

For more information, visit "Modernize and secure applications with DevSecOps," or begin your discussion with us on enhancing container security and adopting DevSecOps. For similar blog posts on Red Hat’s DevSecOps Framework, search for previous months’ categories (Data Controls, Compliance, Identity and Access and Application Analysis) and stay tuned for upcoming posts.