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

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The Horizontal Pod Autoscaler (HPA) is a Kubernetes feature that automatically adjusts the number of pod replicas in a deployment, replication controller, or replica set based on observed CPU utilization or custom metrics. This article likely explores the functionality, configuration, and benefits of HPA in Kubernetes environments, helping users optimize resource allocation and application performance.

https://stormforge.io/kubernetes-autoscaling/horizontal-pod-autoscaler

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The article likely explores the inner workings and architecture of Docker containers, a popular technology for application deployment and virtualization. It probably delves into the core concepts of containerization, explaining how Docker containers isolate processes and manage resources on a host system.


https://dev.to/zeedu_dev/how-does-a-docker-container-work-internally-1o23

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The author introduces Kubernetes' fine-grained Horizontal Pod Autoscaling (HPA) using container resource metrics, a feature that graduated to stable in Kubernetes v1.30. This enhancement allows HPA to target individual container metrics within a pod, enabling more precise scaling decisions based on the resource utilization of specific containers rather than the entire pod's average usage.

https://engineering.doit.com/kubernetes-fine-grained-horizontal-pod-autoscaling-with-container-resource-metrics-9d96c9e105ca

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The principle of least privilege is a foundational security practice aimed at minimizing access by granting only the necessary permissions to identities, ensuring tighter control over resources. In this article, Chainguard CTO Matt Moore introduces the concept of Audited Least Privilege, a complementary approach that leverages IAM audit logs and alert policies to enhance resource-centric security as part of a layered defense strategy.


https://www.chainguard.dev/unchained/audited-least-privilege

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Cron jobs are powerful tools for automating repetitive tasks on Unix-based systems, allowing users to schedule commands or noscripts to run at specific times or intervals. This comprehensive guide delves into the intricacies of cron jobs, covering everything from basic syntax and setup to advanced monitoring techniques and best practices for efficient system management.

https://razorops.com/blog/a-detailed-guide-to-cron-jobs

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Platform engineering has emerged as a crucial discipline in modern software development, aiming to streamline the developer experience and improve productivity across organizations. This article explores how platform engineering principles can benefit companies of all sizes, from startups to large enterprises, by creating standardized, self-service infrastructure that empowers developers to focus on building and shipping products more efficiently.

https://thenewstack.io/platform-engineering-is-for-everyone/

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Effective endpoint health monitoring is crucial for maintaining the reliability and performance of modern web applications and APIs. This article explores how to implement a robust health monitoring system using AWS services and Terraform, providing developers with a practical guide to ensure their endpoints remain responsive and available.


https://dev.to/wardove/endpoint-health-monitoring-with-aws-services-and-terraform-56e5

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AWS RDS IAM database authentication offers a secure and efficient method for managing access to RDS instances without the need for traditional database credentials. This article explores the implementation of IAM authentication for RDS databases in an Amazon EKS environment, demonstrating how to configure and deploy this setup using Terraform for infrastructure as code.

https://rtfm.co.ua/en/aws-rds-iam-database-authentication-eks-pod-identities-and-terraform

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The article "Linux LKM Persistence" explores advanced techniques for maintaining persistence on Linux systems using loadable kernel modules (LKMs). It delves into the methods of loading malicious kernel modules at boot time, focusing on the use of the systemd-modules-load service to install and hide a rootkit

https://righteousit.com/2024/11/18/linux-lkm-persistence/

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The article "Using Tracetest with OpenTelemetry for Trace-based Testing" explores the concept of trace-based testing in distributed systems and introduces tools to implement this approach. It delves into the basics of distributed tracing, compares it with traditional logging methods, and demonstrates how to use OpenTelemetry for instrumentation and Tracetest for creating and running trace-based tests.

https://tracetest.io/blog/trace-based-testing-with-opentelemetry-using-tracetest-with-opentelemetry

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