DevOps & SRE notes – Telegram
DevOps & SRE notes
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Helpfull articles and tools for DevOps&SRE

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This blogpost explores the deployment of large language models (LLMs) using a combination of Google Kubernetes Engine (GKE), Google Gemma, and the Ollama framework, highlighting the benefits of customization, flexibility, and cost-effectiveness. By leveraging these tools, users can achieve seamless and efficient LLM deployment while maintaining control over their data and environment.

https://medium.com/google-cloud/gke-gemma-ollama-the-power-trio-for-flexible-llm-deployment-5f1fa9223477
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This tutorial explores the integration of Kluctl with Cluster API, showcasing how Kluctl can efficiently manage Kubernetes clusters by leveraging its templating and deployment capabilities. By using Kluctl, users can manage multiple workload clusters with a unified CLI, benefiting from features like templating, which simplifies the management of complex deployments without requiring extensive copy-pasting or patching. The tutorial demonstrates setting up a local environment using Kind and deploying a workload cluster with Kluctl.

https://kluctl.io/blog/2024/03/13/cluster-api-kluctl/
This essay delves into the practical aspects of Kubernetes security using a hands-on training simulator developed by ControlPlane. The simulator offers a unique approach to learning container and Kubernetes security by deploying a vulnerable cluster in AWS and guiding users through scenarios to identify and fix security vulnerabilities, all in a fun Capture-the-Flag format.

https://blog.palark.com/kubernetes-security-practical-training-simulator/
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This piece discusses how FinOps can transform IT cost centers into value drivers by optimizing financial management and operations. By implementing FinOps practices, organizations can shift from merely managing costs to driving business value through better resource allocation, improved forecasting, and enhanced collaboration between IT and finance teams.

https://thenewstack.io/finops-can-turn-it-cost-centers-into-a-value-driver/
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This essay examines the shift in AWS's strategy as it begins to deprecate numerous services, marking the end of its "Everything Cloud" era. By focusing on core infrastructure services like EC2 and S3, AWS aims to optimize its offerings and redirect resources to more profitable areas, although this move introduces uncertainty about the longevity of new services.

https://newsletter.goodtechthings.com/p/the-end-of-the-everything-cloud
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This post delves into the process of automating container image updates using Flux and GitHub Actions, highlighting how these tools can streamline application management by ensuring that applications always run with the latest and most secure images. By leveraging GitOps principles, users can automate the update of image tags in their Git repository, reducing manual errors and enhancing deployment efficiency across different environments.

https://dev.to/infracloud/automatic-image-update-to-git-using-flux-and-github-actions-3c4f
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This article explores the integration of Varnish with Istio in a Kubernetes environment to achieve efficient caching and load balancing. By leveraging Istio's consistent hash-based load balancing, Varnish instances can be optimized to handle requests of the same type, ensuring that equivalent requests are routed to the same Varnish instance, thus maintaining high cache effectiveness and reducing latency.

https://medium.com/hamburger-berater-team/varnish-sharding-with-istio-in-kubernetes-402f313919aa
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This essay explores Meta's ServiceRouter, a hyperscale service mesh designed to optimize inter-service communication and load balancing across global regions. By embedding routing logic directly into application code, ServiceRouter significantly reduces infrastructure costs while supporting complex features like sharded services and global load balancing using "locality rings," which dynamically route traffic based on latency and server load.

https://www.micahlerner.com/2024/03/28/servicerouter-hyperscale-and-minimal-cost-service-mesh-at-meta.html
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This essay delves into the importance of continuous observability in CI/CD pipelines, emphasizing how it enhances the efficiency and reliability of software delivery processes. By leveraging tools like OpenTelemetry and the CDEvents specification, organizations can standardize data collection and analysis across different stages of the pipeline, providing a comprehensive view of the entire delivery process and facilitating better optimization and troubleshooting.

https://horovits.medium.com/continuous-observability-shedding-light-on-ci-cd-pipelines-fcc6c10c4987
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This tutorial explores the use of Postgres's memory management system, specifically **MemoryContext**s, by building a simple HTTP server within a Postgres extension. The project demonstrates how to allocate and manage memory efficiently using Postgres's built-in memory context infrastructure, which simplifies memory management by automatically freeing allocated memory when the context is reset.

https://www.enterprisedb.com/blog/exploring-postgress-arena-allocator-writing-http-server-scratch
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This explores the use of OpenTelemetry for monitoring browser applications, highlighting its ability to provide comprehensive insights into document load performance, user interactions, and network requests. By leveraging OpenTelemetry's browser instrumentation, developers can connect client and server traces, offering end-to-end visibility into application performance and facilitating the identification of bottlenecks across the entire request lifecycle.

https://www.highlight.io/blog/monitoring-browser-applications-with-opentelemetry
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