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devops

26 posts
PostgreSQL auto failover with repmgr
cloud
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PostgreSQL auto failover with repmgr

When using Postgres SASS we are not care about how cloud provider managed them but one a day, we need to run a postgres cluster on premise, we need to care about that. We setup 2,3 postgres server, on
COPPER Nguyen
Different between Amazon SQS and SNS
devops
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Different between Amazon SQS and SNS

Amazon SQS and Amazon SNS are two popular tools for engineers when designing distributed systems in the AWS cloud ecosystem. It can be useful if we understand what are the similarities and difference
Sage Huynh
Karpenter Just-In-Time Nodes Scale for EKS
AWS
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Karpenter Just-In-Time Nodes Scale for EKS

Karpenter is an open-source node provisioning project built for Kubernetes. Adding Karpenter to a Kubernetes cluster can dramatically improve the efficiency and cost of running workloads on that clust
COPPER Nguyen
Setup Jenkins worker node that support building Docker Image.
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Setup Jenkins worker node that support building Docker Image.

Usually when we setup a Jenkins server, we usually use the master to build jobs. The master node is in charge of scheduling jobs, assigning slave nodes, and sending builds to slave nodes for execution
COPPER Nguyen
Grant access to EKS cluster for Bastion Host.
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Grant access to EKS cluster for Bastion Host.

When you create an Amazon EKS cluster, the AWS Identity and Access Management (IAM) entity user or role, such as a federated user that creates the cluster, is automatically granted system:masters perm
COPPER Nguyen
Blue/Green deployment with HA Proxy
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Blue/Green deployment with HA Proxy

First, let finding what is blue/green deployment. A blue/green deployment is a deployment strategy in which you create two separate, but identical environments. One environment (blue) is running the c
COPPER Nguyen
How to create an AWS System Design?
AWS
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How to create an AWS System Design?

System Design is an early phase in software development process, especially for project that build new system or re-structure an existing one. However, in many projects, people not aware enough about
Riccardo
Riccardo
要件定義（機能要件・非機能要件）とは？ 機能要件と非機能要件の違い
devops
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要件定義（機能要件・非機能要件）とは？ 機能要件と非機能要件の違い

ITプロジェクトの実行フェースでは要件定義から始まり、設計、開発、テスト、本番移行、リリース、保守までの一連の工程があります。 その中で、機能要件は、ソフトウェアやシステム開発において最初の大切な工程です。今回は、ソフトウェアやシステム開発工程において重要な要件定義について一緒に見ていきましょう。 要件定義（Requirements Definition）とは要件定義とはユーザーが何を求め、何を
Julia Tran
Top 10 deadly mistakes in Cloud projects
devops
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Top 10 deadly mistakes in Cloud projects

This post will help you to avoid mistakes in Cloud projects from the beginning to release. No master you are SA, PM, System Engineer, DevOps Engineer or Developer, avoiding those mistakes will help yo
Riccardo
Riccardo
Web App Testing With Robot Framework Via Jenkins In Docker
devops
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Web App Testing With Robot Framework Via Jenkins In Docker

OverviewThis blog post will show you one of practical testing scenarios which clearly demonstrates how to automate web application testing scenario with Robot Framework. ref: What is Robot Framework?
Roy Pham
Roy Pham