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DevOps & SRE notes

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Helpful articles and tools for DevOps&SRE

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Post #2302 13.4K
In his overview, Martin Heinz unpacks a recent technical challenge and walks readers through the solution, complete with code snippets and performance benchmarks. The candid narrative emphasizes practical learning and encourages experimentation in everyday development workflows.
https://martinheinz.dev/blog/111
martinheinz.dev Recent Docker BuildKit Features You're Missing Out On <p> With introduction of BuildKit - the improved builder backend for Docker - many new features has been added to Docker, many of which are little known. S...
Post #2301 14.3K
Post #2300 13.2K
vCluster - Create fully functional virtual Kubernetes clusters - Each vcluster runs inside a namespace of the underlying k8s cluster. It's cheaper than creating separate full-blown clusters and it offers better multi-tenancy and isolation than regular namespaces.

https://github.com/loft-sh/vcluster?tab=readme-ov-file
GitHub GitHub - loft-sh/vcluster: vCluster - Create fully functional virtual Kubernetes clusters - Each vcluster runs inside a namespace… vCluster - Create fully functional virtual Kubernetes clusters - Each vcluster runs inside a namespace of the underlying k8s cluster. It's cheaper than creating separate full-blown clusters...
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Post #2297 14.3K
The write-up by Overcast explores whether Kubernetes pods are truly evicted because of CPU pressure or if other scheduler nuances are at play. By dissecting eviction events and kubelet metrics, the author equips operators with actionable tips to diagnose and prevent unexpected pod terminations.
https://overcast.blog/do-pods-really-get-evicted-due-to-cpu-pressure-2b27274a670c
Medium Do Kubernetes Pods Really Get Evicted Due to CPU Pressure? As Kubernetes administrators and developers, we’ve all heard the notion that pods can get evicted due to high CPU pressure on a node. But…
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Post #2294 11.6K
In this blogpost the AWS Containers team walks through a real-world scenario, showing how to streamline container deployment pipelines using native AWS tooling and best practices. Readers gain practical guidance on automating builds, scaling workloads, and monitoring production clusters with minimal overhead.
https://aws.amazon.com/blogs/containers/16532-2/
Amazon How to Run WebAssembly on Amazon EKS | Amazon Web Services WebAssembly (Wasm) is a revolutionary technology that promises to bring near-native performance to web applications. However, its potential extends far beyond the browser, enabling developers to run Wasm workloads in various environments, such as cloud-native…
Post #2293 12K
Post #2290 10.8K
In “Using Go Instead of Bash for Scripts,” Krzysztof Kowalczyk showcases how Go programs can supplant traditional shell scripts for running, testing, and deploying applications. This tutorial outlines a single multi-purpose Go command-line tool with flags and helper functions for process execution, file handling, and environment management.

https://blog.kowalczyk.info/article/4b1f9201181340099b698246857ea98d/using-go-instead-of-bash-for-scripts.html
Krzysztof Kowalczyk Using Go instead of bash for scripts
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Post #2289 11.8K
AWS Senior Solution Architect Specialist Sébastien Allamand outlines how Amazon VPC Lattice combined with EKS Pod Identity IAM session tags enables secure communication across multiple Kubernetes clusters. This post demonstrates encryption in transit, fine-grained attribute-based access control, and Envoy sidecar proxies to simplify cross-cluster connectivity.

https://aws.amazon.com/blogs/containers/secure-cross-cluster-communication-in-eks-with-vpc-lattice-and-pod-identity-iam-session-tags/
Amazon Secure Cross-Cluster Communication in EKS with VPC Lattice and Pod Identity IAM Session Tags | Amazon Web Services This blog was authored by Sébastien Allamand (Sr. Solution Architect Specialist, Containers). This blog has also been translated into Portuguese here. Solution overview When you create your applications and want to expose internal API endpoints, you can build…
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Post #2286 10.8K
Recently, I received a message from a recruiter about an open position. We chatted, I sent my CV, and after a week they asked about my desired salary. Then they set a time to sign an NDA before any interview. That was my first warning sign.
I read the NDA carefully and found a few red flags worth sharing (my personal view, not legal advice):

Very broad definition of “Confidential Information.”
The NDA says “Confidential Information” means “any and all information…in whatever form,” including “business plans, forecasts, projections, analyses, compilations, records and other materials” . This could cover even simple chat notes - so you might break the agreement just by asking a normal question.

Three‑year term.
The NDA stays in force for three years from signing . For a one‑time interview, this long period seems too much. It could stop you from working on similar projects elsewhere for a long time.

Foreign jurisdiction.
All disputes must go to the DIFC Courts in Dubai under DIFC law . If you disagree, you could face high travel and legal costs to defend yourself there.

No warranties on information.
The NDA states there are no promises about the accuracy or completeness of the shared information . Yet if you accidentally misuse something, you are fully responsible.

Surprise timing of the NDA.
The recruiter never mentioned the NDA at the start. It only appeared at a late stage - after salary discussions and interview timing agreement. That “tricky” timing feels like a hidden catch.

Always read an NDA line by line. Ask:
- “What exactly counts as confidential?”
- “Why is the term so long?”
- “Am I okay with this jurisdiction?”
A few clear questions now can save you big headaches later.

Have you ever reviewed an NDA with similar points? What questions did you ask before signing?
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Post #2285 11.8K
KevisAlex’s “Interpreting Terraform Plan Outputs with the Help of an LLM” demystifies how large language models can translate Terraform’s complex plan data into practical insights. This blogpost guides DevOps teams through clear, step-by-step examples to streamline infrastructure as code workflows.

https://medium.com/@KevsAlex/interpreting-terraform-plan-outputs-with-the-help-of-an-llm-8f9824c63ecd
Medium Interpreting Terraform Plan Outputs with the Help of an LLM So, you’ve got a Terraform plan output in front of you. It’s filled with lines of code that look like a language only your computer…
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