DevOps & SRE notes

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Helpful articles and tools for DevOps&SRE WhatsApp: https://whatsapp.com/channel/0029Vb79nmmHVvTUnc4tfp2F For paid consultation (RU/EN), contact: @tutunak All ways to support https://telegra.ph/How-support-the-channel-02-19

USA2 979 Technologies & Applications10 047...

📈 Analytical overview of Telegram channel DevOps & SRE notes

Channel DevOps & SRE notes (@devops_sre_notes) in the English language segment is an active participant. Currently, the community unites 12 640 subscribers, ranking 10 047 in the Technologies & Applications category and 2 979 in the USA region.

📊 Audience metrics and dynamics

Since its creation on невідомо, the project has demonstrated rapid growth, gathering an audience of 12 640 subscribers.

According to the latest data from 10 June, 2026, the channel demonstrates stable activity. Although there has been a change in the number of participants by 217 over the last 30 days and by 3 over the last 24 hours, overall reach remains high.

Verification status: Not verified
Engagement rate (ER): The average audience engagement rate is 18.62%. Within the first 24 hours after publication, content typically collects 4.84% reactions from the total number of subscribers.
Post reach: On average, each post receives 2 354 views. Within the first day, a publication typically gains 612 views.
Reactions and interaction: The audience actively supports content: the average number of reactions per post is 3.
Thematic interests: Content is focused on key topics such as kubernete, cluster, author, engineering, monitoring.

📝 Description and content policy

The author describes the resource as a platform for expressing subjective opinions:
“Helpful articles and tools for DevOps&SRE WhatsApp: https://whatsapp.com/channel/0029Vb79nmmHVvTUnc4tfp2F For paid consultation (RU/EN), contact: @tutunak All ways to support https://telegra.ph/How-support-the-channel-02-19”

Thanks to the high frequency of updates (latest data received on 11 June, 2026), the channel maintains relevance and a high level of publication reach. Analytics show that the audience actively interacts with content, making it an important point of influence in the Technologies & Applications category.

12 640

Subscribers

+324 hours

+487 days

+21730 days

2 354

Post views

~ 61224 hours

~ 79248 hours

18.62%

Engagement rate

No data

Posts per day

Ads index

beta

Posts Archive

12 651

This blogpost by Zach Loeber introduces Atmos, an opinionated infrastructure deployment tool from CloudPosse designed to simplify and scale Terraform state management for multi-state projects. Loeber walks through adopting Atmos, its stack-based structure, YAML-driven configuration, and highlights both the flexibility and initial learning curve that come with integrating Atmos into existing workflows. https://dev.to/zloeber/atmos-wield-terraform-like-a-boss-3bfc

12 651

This retrospective by Marc Olson offers a detailed look at the evolution of AWS Elastic Block Store (EBS), tracing its journey from a simple network-attached block storage service launched in 2008 to a massive, distributed SSD-based system now handling over 140 trillion operations daily. The post highlights key lessons learned in performance engineering, organizational structure, and continuous incremental improvement, illustrating how EBS overcame challenges like noisy neighbors, hardware transitions from HDDs to SSDs, and the need for robust measurement and instrumentation to deliver ever-lower latency and higher reliability for AWS customers. https://www.allthingsdistributed.com/2024/08/continuous-reinvention-a-brief-history-of-block-storage-at-aws.html

12 651

GitHub Action to automate versioning, releases, and documentation for Terraform modules in monorepos. https://github.com/techpivot/terraform-module-releaser

12 651

Timoni is a package manager for Kubernetes, powered by CUE and inspired by Helm. https://github.com/stefanprodan/timoni

12 651

This article by Ahmet Alp Balkan highlights common pitfalls in generating Kubernetes CustomResourceDefinitions (CRDs) with controller-gen, emphasizing the importance of explicit validation, careful use of required and optional markers, and understanding how Go’s zero values interact with CRD schemas. Through practical examples, it warns developers about issues like unvalidated nested fields, marker typos, and the challenges of defaulting and validation, offering actionable advice to avoid subtle bugs in custom Kubernetes APIs. https://ahmet.im/blog/crd-generation-pitfalls/index.html

12 651

This post details Amazon’s ambitious migration from Apache Spark to Ray on Amazon EC2 for exabyte-scale data processing, revealing how Ray’s flexibility and efficiency enabled massive cost savings and performance improvements. Readers will discover the technical strategies and real-world results that made this transformation a success for Amazon’s Business Data Technologies team. https://aws.amazon.com/blogs/opensource/amazons-exabyte-scale-migration-from-apache-spark-to-ray-on-amazon-ec2/

12 651

Self serve cloud resources with Terraform & Kubernetes https://github.com/appvia/terranetes

12 651

Manages Envoy Proxy as a Standalone or Kubernetes-based Application Gateway https://github.com/envoyproxy/gateway

12 651

This blogpost by Rodrigo Fior Kuntzer delves into how Miro’s Compute team leverages Kyverno’s mutating webhooks to automate and streamline complex Kubernetes workflows. With practical examples, it demonstrates how Kyverno policies can dynamically modify resources, enforce best practices, and enhance both security and operational efficiency across Kubernetes environments. https://medium.com/@rodrigofk/automating-kubernetes-workflows-with-kyvernos-mutating-webhooks-ae3f0a81d4d7

12 651

This guide by Marcin Cuber provides a comprehensive walkthrough for implementing AWS ECR pull-through cache for an EKS cluster using Terraform. The tutorial details how to configure cache rules for multiple upstream registries-such as Docker Hub, GitHub, Quay, Kubernetes, and ECR Public-covering both authentication requirements and IAM permissions for seamless integration with your Kubernetes workloads. https://marcincuber.medium.com/implementing-aws-ecr-pull-through-cache-for-eks-cluster-most-in-depth-implementation-details-e51395568034

12 651

AWS & GCP FinOps Tools https://github.com/cloudon-one/FinOps-Guardian/tree/main

12 651

A web interface for Sealed Secrets by Bitnami. https://github.com/bakito/sealed-secrets-web

12 651

In this captivating tutorial, Noah H explores the powerful capabilities of eBPF technology and Tetragon for enhancing Kubernetes security through runtime monitoring and policy enforcement. The author provides valuable insights into how these tools can detect suspicious activities, prevent container escapes, and enforce security policies directly at the kernel level without significant performance overhead. https://medium.com/@noah_h/kubernetes-security-ebpf-tetragon-for-runtime-monitoring-policy-enforcement-819b6ed97953

12 651

This informative piece by bm54cloud explores the intricacies of deploying and updating Zarf packages in air-gapped environments. The author provides valuable insights into overcoming the unique challenges faced when working with systems disconnected from external networks. https://medium.com/@bm54cloud/deploy-and-update-zarf-packages-in-an-air-gap-b2e3ec43abf7

12 651

Homogeneous Kubernetes clusters at scale on any infrastructure using hosted control planes. https://github.com/gardener/gardener

12 651

A more powerful alternative to kubectx and kubens https://github.com/sbstp/kubie

12 651

Understanding how to secure Linux containers requires a deep dive into tools like seccomp, which can restrict the system calls available to containerized processes. In this technical guide, the fourth installment of the Container Internals Series breaks down how seccomp filters work, their real-world impact on container security, and practical steps to implement custom seccomp profiles for hardened deployments. https://levelup.gitconnected.com/container-internals-series-part-4-seccomp-d88543988709

12 651

Upgrading from Node.js 18 to 20 brought unexpected performance impacts to a Kubernetes-deployed service, as detailed in this technical recap. The experience-driven story reveals how changing memory reservations on Kubernetes pods can shrink Node.js heap spaces—specifically the "new space"—triggering heavier garbage collection and higher CPU load, and how adjusting the --max-semi-space-size parameter restored both speed and stability. https://deezer.io/node-js-20-upgrade-a-journey-through-unexpected-heap-issues-with-kubernetes-27ae3d325646

12 651

kubectl-modify-secrets allows user to directly modify the secret without worrying about base64 encoding/decoding https://github.com/rajatjindal/kubectl-modify-secret

12 651

A CLI utility to sort Terraform variables and outputs https://github.com/AlexNabokikh/tfsort