After reading this article, you will learn:

- How not to run pods as root.
- How to use immutable root fs (lock the root filesystem).
- How to do Docker image scan locally and with your CI pipelines.
- How to use PSP.

Read more https://blog.gitguardian.com/kubernetes-tutorial-part-1-pods

In this repository, you will find a curated list of awesome Kubernetes security resources.

Read more https://github.com/ksoclabs/awesome-kubernetes-security

This article discusses two Open Source tools for auditing cluster security: kube-bench and kube-hunter.

Read more https://blog.flant.com/kubernetes-security-with-kube-bench-and-kube-hunter

Kubernetes 1.23 includes security features to enhance cluster security:

- Support for ephemeral containers
- HostProcess containers for Windows
- PodSecurity admission controller

And more.

Read more https://blog.aquasec.com/kubernetes-version-1.23-security-features

Learn how to use eBPF and the Security Profiles Operator to automatically generate seccomp profiles, a Linux kernel security feature for Kubernetes.

Read more https://developers.redhat.com/articles/2021/12/16/secure-your-kubernetes-deployments-ebpf#what_is_the_security_profiles_operator_

Learn how to run Regula on a Kubernetes manifest to detect an insecure pod, and then learn how to secure it.

Read more https://fugue.co/blog/securing-a-kubernetes-pod-with-regula-and-open-policy-agent

A typical web application responds to requests from bots, health checks, and various attempts to circumvent security and gain unauthorized access.

Examples include:

- SQL injections.
- XSS attacks.

So, how can you filter out those malicious attempts in Kubernetes?

You have at least 2 solid options:

1. You can filter the traffic before it reaches the container.
2. You can filter the traffic at the Ingress.

Chris Nesbitt-Smith will dive into the details this coming Monday at 8am PT / 4pm CET in a live webinar.

After the session, you will have access to the code, a step-by-step tutorial and interactive labs to test the configuration (provided by NGINX).

You can register here (it's free): https://www.nginx.com/c/microservices-march-2022-kubernetes-networking-agenda/

A high-severity CVE was released that affects the Linux kernel, allowing unprivileged users to escalate those rights to root and escape from the container.
Learn how you can protect your cluster with a seccomp filter.

Read more https://blog.aquasec.com/cve-2022-0185-linux-kernel-container-escape-in-kubernetes

In this post, you will learn how to incorporate the Kong Ingress Controller, KeyCloak and Kubernetes to have an initial OIDC flow to front our external services (API or web endpoints).

Read more https://dev.to/robincher/securing-your-site-via-oidc-powered-by-kong-and-keycloak-2ccc

ArgoCD-Vault-plugin is an Argo CD plugin to retrieve secrets from various Secret Management tools (HashiCorp Vault, IBM Cloud Secrets Manager, AWS Secrets Manager, etc.) and inject them into Kubernetes resources.

Read more https://github.com/argoproj-labs/argocd-vault-plugin

In this post, you will explore the different methods of integrating HashiCorp Vault with Kubernetes and learn how to choose the best solution for your use case.

Read more https://www.hashicorp.com/blog/kubernetes-vault-integration-via-sidecar-agent-injector-vs-csi-provider

In this 2 part article, you will explore Kubernetes RBAC with a few hands-on demo labs.

Read more https://medium.com/@badawekoo/using-rbac-in-kubernetes-for-authorization-complete-demo-part-1-83f0a1fb8f

In this article, you learn how to exploit the Log4j vulnerability (log4shell) in an application deployed on Kubernetes

Read more https://ankur-katiyar.medium.com/cve-2021-44228-proof-of-concept-on-kubernetes-34c7337e8a89

Cloud Custodian enables us to write simple YAML policies for creating well-managed cloud infrastructure which is secure and cost-optimized in real-time.



Read more https://infracloud.io/blogs/cloud-governance-code-cloud-custodian

In this post, you will learn how to simplify the process of setting up and running controlled fault injection experiments on Amazon EKS using pre-built templates as well as custom faults to find hidden weaknesses in your Amazon EKS workloads.

Read more https://aws.amazon.com/blogs/devops/chaos-engineering-on-amazon-eks-using-aws-fault-injection-simulator

Generally, operators of the cluster are assigned to the cluster-admin ClusterRole. This gives the user access and permission to do all operations on all resources in the cluster. But what if you need to block an action performed by cluster admins?


Read more https://marcusnoble.co.uk/2022-01-20-restricting-cluster-admin-permissions

A guide on how to stay safe when pushing Helm values files containing passwords and other sensitive data to the version control.

Read more https://dev-vibe.medium.com/encrypt-helm-sensitive-data-9d7622e41d00

Commonly, an application requires access to data and, usually, such access must be restricted. So, you need to provide your pod/deployment/replicaSet/DaemonSet with secrets.

Learn how you can do so in AKS.

Read more https://mehighlow.medium.com/hardened-aks-secrets-82351c43eac4

So you want to deploy an application to EKS that requires access to AWS resources like an S3 bucket or a Kinesis stream. What's the best way to allow that? Use OIDC!

Read more https://medium.com/@abhinav.ittekot/granting-iam-permissions-to-pods-in-eks-using-oidc-f2044c88a53

In this tutorial, you will create an Amazon EKS cluster, install LitmusChaos and deploy a demo application. Then, you will define chaos experiments to be run on it and observe the behaviour.

Read more https://aws.amazon.com/blogs/containers/chaos-engineering-with-litmuschaos-on-amazon-eks

What happens when you combine a Kubernetes RoleBinding to a ClusterRole?

Are you even allowed?

This article will explore the Kubernetes RBAC authorization model by rebuilding it from scratch.

You will also discover different (unusual but useful) configurations for your RBAC resources.

If you work in a large organization with many users and applications, you will find this article on limiting access to Kubernetes resources relevant.

https://learnk8s.io/rbac-kubernetes