Secrets Webhook is a tool that enables direct secret injection into Kubernetes Pods through a mutating webhook.

More: https://github.com/bank-vaults/secrets-webhook

The allowPrivilegeEscalation flag prevents processes from gaining more privileges than their parent process.

This article explains that while turning it off can be a valuable security mechanism, not doing so is unlikely to get you hacked.

More: https://blog.christophetd.fr/stop-worrying-about-allowprivilegeescalation

Are you facing challenges with pre-production environments in Kubernetes?

This KubeFM episode shows how to implement efficient deployment previews and solve data seeding bottlenecks.

Nick Nikitas, Senior Platform Engineer at Blueground, shares how his team transformed their static pre-production environments into dynamic previews using ArgoCD Application Sets, Wave and Velero.

He explains their journey from managing informal environment sharing between teams to implementing a scalable preview system that reduced environment creation time from 19 minutes to 25 seconds.

You will learn:

- How to implement GitOps-based preview environments with Argo CD Application Sets and PR generators for automatic environment creation and cleanup.
- How to control cloud costs with TTL-based termination and FIFO queues to manage the number of active preview environments.
- How to optimize data seeding using Velero, AWS EBS snapshots, and Kubernetes PVC management to achieve near-instant environment creation.

Watch it here: https://kube.fm/deployment-previews-nick

Contrast is a tool that runs confidential container deployments on Kubernetes.

It is based on the Kata Containers and Confidential Containers projects.

More: https://github.com/edgelesssys/contrast

This week on Learn Kubernetes Weekly 103:

🔐 How Agoda handles load shedding in private cloud
📕 A hands-on guide to Kubernetes endpoints & EndpointSlices
🤠 Kubernetes: containers, and the "lost" SIGTERM signals
🙅‍♂️ Observability is not equal observability in Kubernetes
⚒️ Amazon EKS: managing and fixing etcd database size

Read it now: https://learnk8s.io/issues/103

⭐️ Single big cluster or multiple clusters?
Why not the best of both?! Simplify Kubernetes with vCluster by Loft Labs, the leading solution for Kubernetes multi-tenancy and cost savings https://www.vcluster.com/?utm_source=learnk8s&utm_medium=newsletter&utm_campaign=102924-learnk8s-nl

This article explains how to use Network Policies in Kubernetes to control traffic flow and create isolation between services, with a practical example.

More: https://medium.com/@jdominguezc26/building-secure-kubernetes-environments-a-practical-guide-to-network-policies-3590f372ab2d

This week's 6 best Kubernetes vacancies that focus on security are:

DevSecOps Engineer with Worldcoin
💰 $236K to $323K a year
🏠 From the office in San Francisco, CA, USA
→ https://kube.careers/t/e824f971-4831-4329-8dfd-2edcce0c9ed5?s=55

DevSecOps Engineer with Gemini
💰 $248K to $310K a year
👨‍💻 Remote from the United States
→ https://kube.careers/t/03598248-6bcb-4117-85b1-ecba6edb3070?s=55

DevSecOps Engineer with Uniswap Labs
💰 $264K to $294K a year
🏠 From the office in New York, NY, USA
→ https://kube.careers/t/3d7c0bd7-abd8-4526-a376-458f65018709?s=55

Security Architect with Adobe Inc.
💰 $191.7K to $345.7K a year
🏠 From the office in Seattle, WA / San Francisco / San Jose, CA, USA
→ https://kube.careers/t/b6de3faf-adb8-462a-9dd9-260446149b27?s=55

👉 Browse all 1352 Kubernetes jobs on Kube Careers https://kube.careers

Kubernetes in action: from pods to production-ready clusters!

📆 Learnk8s runs a 4-day online Advanced Kubernetes course in 2 weeks!

You will learn how to:

1️⃣ Architect and design resilient clusters (in the cloud or on-prem).
2️⃣ Master deployment strategies and resource management.
3️⃣ Wire the cluster network and trace packets flowing through it.
4️⃣ Secure your cluster with the latest best practices.
5️⃣ Autoscale, manage data and stateful workloads, monitoring and more.

What you need to know:

✅ 40% lecture, 60% hands-on labs.
✅ Small groups for personalized learning.
✅ Progresses from basics to advanced topics.
✅ Lifetime access to course materials and Slack community.

Ticket and info: https://kube.events/t/3ae8e890-0f78-40e8-854e-849964bb8aee

Corporate training: https://learnk8s.io/corporate-training

SOPS: Secrets OPerationS is an operator for managing Kubernetes Secret Resources created from user-defined SopsSecrets CRDs, inspired by Bitnami SealedSecrets and sops.

More: https://github.com/isindir/sops-secrets-operator

Securing Kubernetes Pods is crucial for production workloads, as they are a common entry point for attackers.

This article outlines the steps to take to mitigate risks using tools like OPA and Kyverno, and configuring network policies to manage traffic.

More: https://dev.to/thenjdevopsguy/securing-kubernetes-pods-for-production-workloads-51oh

Learn how to use a Kubernetes admission controller to authorize external requests by creating a custom authorization service, generating TLS certificates, and configuring deployment and service manifests.

More: https://itnext.io/kubernetes-webhook-admission-controller-3271d041c636

This episode explores Admission Controllers and Webhooks with Gordon Myers, who shares his experience implementing webhook solutions in production.

You will learn:

- How the Kubernetes API processes requests through authentication, authorization, and Admission Controllers.
- Best practices for testing webhooks and avoiding common pitfalls that can break cluster deployments.
- Real-world examples of webhook implementations, including injecting secrets from HashiCorp Vault into containers.

Watch (or listen to) it here: https://kube.fm/webhooks-aop-gordon

🌟 This episode is sponsored by @Learnk8s: get started on your Kubernetes journey through comprehensive online, in-person or remote training https://learnk8s.io/training

With @Birthmarkb "Joyful and empowering voice" Farrell

This article provides an in-depth exploration of Kubernetes networking, tracing the journey of a network packet through a cluster and highlighting the crucial role of Network Policies in securing applications.

More: https://otterize.com/blog/mastering-kubernetes-networking-otterize-s-journey-in-cloud-native-packet-management

This week on Learn Kubernetes Weekly 104:

🤔 Why sometimes the PID 1 process cannot be killed in a container
📕 Understanding DNS in Kubernetes
🏥 From fragile to faultless: Kubernetes self-healing in practice
🚧 The trouble with topology-aware routing: sacrificing reliability in the name of cost savings
♻️ Taming FluxCD Helm releases: the Kustomize way approach

Read it now: https://learnk8s.io/issues/104

⭐️ Become an expert in Kubernetes. Join the next instructor-led Learnk8s training and learn how to master Kubernetes scaling, security and development https://learnk8s.io/training

This article provides a guide to Falco, a system threat detection engine.

It covers its installation, rule creation, architecture, and use with containers and Kubernetes.

More: https://a-cup-of.coffee/blog/falco

This week's 6 best Kubernetes vacancies that focus on security are:

DevSecOps Engineer with Worldcoin
💰 $236K to $323K a year
🏠 From the office in San Francisco, CA, USA
→ https://kube.careers/t/e824f971-4831-4329-8dfd-2edcce0c9ed5?s=55

DevSecOps Engineer with Gemini
💰 $248K to $310K a year
👨‍💻 Remote from the United States
→ https://kube.careers/t/03598248-6bcb-4117-85b1-ecba6edb3070?s=55

DevSecOps Engineer with Uniswap Labs
💰 $264K to $294K a year
🏠 From the office in New York, NY, USA
→ https://kube.careers/t/3d7c0bd7-abd8-4526-a376-458f65018709?s=55

Security Architect with Adobe Inc.
💰 $191.7K to $345.7K a year
🏠 From the office in Seattle, WA / San Francisco / San Jose, CA, USA
→ https://kube.careers/t/b6de3faf-adb8-462a-9dd9-260446149b27?s=55

👉 Browse all 1231 Kubernetes jobs on Kube Careers https://kube.careers

Hillai Ben-Sasson and Ronen Shustin, Security Researchers at Wiz, emphasized that containers should not be solely relied upon as security barriers due to their vulnerability to kernel exploits and common misconfiguration.

They also pointed out significant risks associated with strong secrets within Kubernetes environments, which can grant extensive read and write access across different cloud services and customers.

Watch the full episode: https://kube.fm/hacking-alibaba-ronen-hillai

The article examines the kube-proxy API, covering its healthz and metrics components, and the information it provides without authentication.

More: https://raesene.github.io/blog/2024/06/16/Taking-A-Look-At-The-Kube-Proxy-API

Kubernetes in action: from pods to production-ready clusters!

📆 Learnk8s runs a 4-day online Advanced Kubernetes course next week!

You will learn how to:

1️⃣ Architect and design resilient clusters (in the cloud or on-prem).
2️⃣ Master deployment strategies and resource management.
3️⃣ Wire the cluster network and trace packets flowing through it.
4️⃣ Secure your cluster with the latest best practices.
5️⃣ Autoscale, manage data and stateful workloads, monitoring and more.

What you need to know:

✅ 40% lecture, 60% hands-on labs.
✅ Small groups for personalized learning.
✅ Progresses from basics to advanced topics.
✅ Lifetime access to course materials and Slack community.

Ticket and info: https://kube.events/t/3ae8e890-0f78-40e8-854e-849964bb8aee

Corporate training: https://learnk8s.io/corporate-training

kubeztl is a tool that zitifies the Kubernetes client, allowing users to access their Kubernetes cluster securely using a zero-trust overlay network.

More: https://github.com/openziti-test-kitchen/kubeztl

The article walks through a hands-on lab where a Flask application is exploited to gain initial access to a Kubernetes cluster.

This is followed by privilege escalation using GitHub CI/CD credentials and exfiltrating sensitive data from a database.

More: https://soc-inspiration.medium.com/hands-on-lab-full-kubernetes-compromise-what-will-your-soc-do-about-it-3866106cf041