K8s security guide.

By Jorge Salamero Sanz - APRIL 4, 2018

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In this K8s security guide we cover the most significant aspects of implementing K8s security best practices.

K8s security, like monitoring or building a CI/CD pipeline is becoming a must as a consequence of Kubernetes platform quickly gaining reputation as the defacto standard for modern containerized deployments.

Unfortunately, traditional security processes need to be updated for Kubernetes; legacy security tools that were not built for containers cannot look inside, analyze or protect containers, microservices and cloud-native apps. Containers are like black boxes, useful for moving applications from development into production. They provide a great level of portability and isolation. But makes harder to understand what’s happening inside, monitor and secure them. Microservices help to develop applications faster and orchestration tools like Kubernetes allow to deploy and dynamically scale the apps, but now we have different pieces moving around, therefore we must take a more dynamic security approach.

Furthermore, many organizations are adopting security best practices and implementing DevSecOps processes, where everyone is responsible for security and, security is implemented from early development stages into production through the entire software supply chain, this also known as Continuous Security.

Moving Kubernetes to production implies new infrastructure layers, new components, new procedures and therefore new security processes and tools. This security guide will help you to implement K8s security, mostly focused around Kubernetes specific security features and its configuration, but also some additionals tools that will go beyond what Kubernetes can do.

Get the Kubernetes Security Guide to get the critical information you need to implement Kubernetes security

We have covered the following topics:

You can use this guide as comprehensive read if you are new to K8s security or as a quick reference document / cheat sheet if you are looking at implementing specific K8s security best practices.

If you are new into Docker and container security, as a prerequisite for this guide, we recommend you to check out 7 Docker security vulnerabilities and threats.

But if you are looking at expanding security into applications, you will find useful K8s security policies and audit with Sysdig Secure where we show how to secure Docker’s example-voting-app, a modern microservices based demo app running on Kubernetes.

Additionally, we also wrote some real stories about K8s security incidents that will help you understand the threats that you need to consider when running Kubernetes in production:

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