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

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In the article discusses the challenges of maintaining Service Level Objectives (SLOs) in a microservices environment. The team redefined their Critical User Journeys (CUJs) and implemented end-to-end (E2E) testing to automate SLO maintenance, resulting in a 99% reduction in maintenance time and immediate impact assessment during incidents.

https://engineering.mercari.com/en/blog/entry/20241204-keeping-user-journey-slos-up-to-date-with-e2e-testing-in-a-microservices-architecture/
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In December 2024, AWS introduced a visual deployment timeline feature for CloudFormation, enhancing the infrastructure-as-code service with real-time visualization of resource provisioning sequences. This timeline offers a graphical representation of the order and duration of resource deployments, providing insights into dependencies and potential bottlenecks.

https://www.infoq.com/news/2024/12/cloudformation-visual-deployment/
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In the article "The Karpenter Transformation," Nadav Buchman from Fiverr Engineering discusses the company's migration of their Kubernetes compute nodes to Karpenter, an open-source Kubernetes node lifecycle manager developed by AWS.
https://medium.com/fiverr-engineering/the-karpenter-transformation-1c278294bd9b
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In his article "Kubernetes CRD: the versioning joy," Joel Takvorian shares the challenges encountered while evolving the CustomResourceDefinition (CRD) versions for the Network Observability operator.

https://dev.to/jotak/kubernetes-crd-the-versioning-joy-6g0
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In the article "Run security scans on Terraform and OpenTofu projects with Trivy and GitHub Actions," the author provides a hands-on tutorial on integrating security scans into infrastructure-as-code (IaC) workflows using Trivy and GitHub Actions.

https://janik6n.net/posts/run-security-scans-on-terraform-and-opentofu-project-with-trivy-and-github-actions/
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The blogpost explores the integration of GitHub Actions with AWS CodeBuild to create self-hosted runners. This approach leverages AWS CodeBuild's managed environment to execute GitHub Actions workflows, offering benefits such as enhanced security, scalability, and cost efficiency.

https://kieranlowe.io/implementing-self-hosted-github-action-runners-using-aws-codebuild
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