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DevOps & SRE notes
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Helpful articles and tools for DevOps&SRE

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DevOps & SRE notes
12K subscribers
DevOps & SRE notes
https://medium.com/capital-one-tech/policy-enabled-kubernetes-with-open-policy-agent-3b612b3f0203
Medium
Policy Enabled Kubernetes with Open Policy Agent
Addressing Common Concerns with Cloud Computing and DevOps
601 viewstutunak, 
DevOps & SRE notes
https://dev.to/pavanbelagatti/verify-your-kubernetes-deployments-with-prometheus-and-newrelic-2482
DEV Community
Verify Your Kubernetes Deployments with Prometheus and NewRelic
Software organizations today are heavily focusing on automation and developer efficiency. No doubt,...
621 viewstutunak, 
DevOps & SRE notes
https://dev.to/zenika/how-to-deploy-a-cost-efficient-awseks-kubernetes-cluster-using-terraform-in-2023-3903
DEV Community
☸️ How to Deploy a Cost-Efficient AWS/EKS Kubernetes Cluster Using Terraform in 2023
Initial thoughts Variables Providers and locals The enclosing VPC network The actual Kubernetes...
620 viewstutunak, 
DevOps & SRE notes
jq for binary formats - tool, language and decoders for working with binary and text formats

https://github.com/wader/fq
GitHub
GitHub - wader/fq: jq for binary formats - tool, language and decoders for working with binary and text formats
jq for binary formats - tool, language and decoders for working with binary and text formats - wader/fq
576 viewstutunak, 
DevOps & SRE notes
https://medium.com/@sangjinn/kubernetes-annotations-e61b19effdf9
Medium
What are Kubernetes Annotations?
Annotations in Kubernetes are metadata used to express additional information related to a…
598 viewstutunak, 
DevOps & SRE notes
Interesting article about debugging running pods

https://medium.com/@danielepolencic/isolating-kubernetes-pods-for-debugging-5fe41e630e9
Medium
Isolating Kubernetes pods for debugging
This article introduces a technique that helps you with debugging running Pods in production. By changing labels, you can detach Pods from the Service (no traffic), and you troubleshoot them …
633 viewstutunak, 
DevOps & SRE notes
https://dev.to/luafanti/vault-auto-unseal-using-transit-secret-engine-on-kubernetes-13k8
DEV Community
Vault Auto-unseal using Transit Secret Engine on Kubernetes
Theoretical introduction To make the Vault operational once it has been installed, we need...
593 viewstutunak, 
DevOps & SRE notes
https://sysdig.com/blog/how-to-secure-helm/
Sysdig
Helm security and best practices
Helm is a useful tool to manage the Kubernetes applications lifecycle. This article covers some best practices and helm security recommendations.
598 viewstutunak, 
DevOps & SRE notes
https://itnext.io/how-do-you-gracefully-shut-down-pods-in-kubernetes-fb19f617cd67
Medium
How do you gracefully shut down Pods in Kubernetes?
When you type kubectl delete pod, the pod is deleted, and the endpoint controller removes its IP address and port (endpoint) from the Services and etcd. You can observe this with kubectl describe …
619 viewstutunak, 
DevOps & SRE notes
https://code.tubitv.com/managing-kubernetes-manifest-complexity-with-kustomize-b172346a805a
Medium
Managing Kubernetes Manifest Complexity with Kustomize
The meteoric rise of Kubernetes adoption in recent years has spurred many engineering organizations to take advantage of its cost…
620 viewstutunak, 
DevOps & SRE notes
https://medium.com/adaltas/kubernetes-debugging-with-ephemeral-containers-e4be659d9ef6
Medium
Kubernetes: debugging with ephemeral containers
Introduction to `kubectl debug`, a new way to debug pods in Kubernetes available in beta in its version 1.23.
497 viewstutunak, 
DevOps & SRE notes
https://medium.com/branch-engineering/experimenting-blue-green-cluster-migration-with-amazon-route-53-and-externaldns-6b8245cff0d3
Medium
Experimenting with blue-green cluster migration using Amazon Route 53 and ExternalDNS
At Branch, most of our infrastructure runs on Amazon EKS (Elastic Kubernetes Service). However, a significant challenge is that EKS…
495 viewstutunak, 
DevOps & SRE notes
https://medium.com/everything-full-stack/gitops-way-with-github-actions-and-self-hosted-runner-on-kubernetes-bb15d3f2f147
Medium
GitOps way with Github Actions and self-hosted runner on Kubernetes
Hi, I’m DevOps Engineer at Tikal Knowledge.
499 viewstutunak, 
DevOps & SRE notes
https://aws.amazon.com/blogs/containers/optimizing-your-kubernetes-compute-costs-with-karpenter-consolidation/
Amazon
Optimizing your Kubernetes compute costs with Karpenter consolidation | Amazon Web Services
Introduction Karpenter was built to solve issues pertaining to optimal node selection in Kubernetes. Karpenter’s what-you-need-when-you-need-it model simplifies the process of managing compute resources in Kubernetes by adding compute capacity to your cluster…
512 viewstutunak, 
DevOps & SRE notes
A tool to stress Kubernetes cluster and solutions with fun

https://github.com/jpca/Boulegueur
GitHub
GitHub - jpca/Boulegueur: A tool to stress Kubernetes cluster and solutions with fun
A tool to stress Kubernetes cluster and solutions with fun - GitHub - jpca/Boulegueur: A tool to stress Kubernetes cluster and solutions with fun
502 viewstutunak, 
DevOps & SRE notes
Module to Automatically maximize the utilization of GPU resources in a Kubernetes cluster through real-time dynamic partitioning and elastic quotas - Effortless optimization at its finest!

https://github.com/nebuly-ai/nos
GitHub
GitHub - nebuly-ai/nos: Module to Automatically maximize the utilization of GPU resources in a Kubernetes cluster through real…
Module to Automatically maximize the utilization of GPU resources in a Kubernetes cluster through real-time dynamic partitioning and elastic quotas - Effortless optimization at its finest! - nebuly...
👍1
522 viewstutunak, 
DevOps & SRE notes
KubeVPN is Cloud Native Dev Environment, connect to kubernetes cluster network, you can access remote kubernetes cluster network, remote kubernetes cluster service can also access your local service. and more, you can run your kubernetes pod on local Docker container with same environment、volume、and network.

https://github.com/KubeNetworks/kubevpn
GitHub
GitHub - kubenetworks/kubevpn: KubeVPN offers a Cloud Native Dev Environment that connects to kubernetes cluster network.
KubeVPN offers a Cloud Native Dev Environment that connects to kubernetes cluster network. - GitHub - kubenetworks/kubevpn: KubeVPN offers a Cloud Native Dev Environment that connects to kubernete...
👍1
433 viewstutunak, 
DevOps & SRE notes
Kubernetes PreUpGrade (Checker)

https://github.com/rikatz/kubepug
GitHub
GitHub - kubepug/kubepug: Kubernetes PreUpGrade (Checker)
Kubernetes PreUpGrade (Checker). Contribute to kubepug/kubepug development by creating an account on GitHub.
411 viewstutunak, 
DevOps & SRE notes
https://medium.com/cloutive/production-ready-eks-coredns-configuration-6fea830606f8
Medium
Production Ready EKS CoreDNS Configuration
As a “Managed Kubernetes” offering, AWS EKS comes with some essential core services, like CoreDNS. (kube-proxy etc.)
401 viewstutunak, 
DevOps & SRE notes
https://aws.amazon.com/blogs/containers/scale-from-100-to-10000-pods-on-amazon-eks/
Amazon
Scale from 100 to 10,000 pods on Amazon EKS | Amazon Web Services
This post was co-authored by Nikhil Sharma and Ravishen Jain of OLX Autos Introduction We, at OLX Autos run more than 100 non-production (non-prod) environments in parallel for different use-cases on home grown Internal Developer Platform (IDP), ORION. ORION…
436 viewstutunak, 
DevOps & SRE notes
https://medium.com/codex/mtu-in-cilium-clustermesh-with-eks-c05b2aca2f4f
Medium
MTU in Cilium ClusterMesh with EKS
MTU stands for Maximum Transmission Unit. It is a networking term that refers to the largest size of a data packet that can be transmitted…
412 viewstutunak,