· devops
Deploying an AWS EKS Cluster Using Terraform: A Step-by-Step Guide
Introduction In today's cloud‑native landscape, Kubernetes has become the de‑facto standard for container orchestration, and Amazon Elastic Kubernetes Service...
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[AWS] 7. AWS Route 53, DNS (Domain Name System), Routing Policies
What is DNS? - Domain Name System – translates human‑friendly hostnames into machine IP addresses. www.google.com → 172.217.18.36 - The backbone of the Interne...
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[AWS] 6. AWS Fundamentals: RDS (Relational Database Service) + Amazon Aurora + ElastiCache
'Amazon RDS Overview
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Inside Logic Apps Standard: Understanding Compute Units (CU) for Storage Scaling
Introduction When your Logic App Standard workflows grow in volume and complexity, Azure provides a powerful horizontal scaling mechanism through Compute Units...
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Troubleshooting EFS Mount Failures in EKS: The IAM Mount Option Mystery
TL;DR If you see mount.nfs4: access denied by server while mounting 127.0.0.1:/ when mounting EFS volumes in EKS, and the security groups are correct, you’re li...
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Improving VirtOps: Manage, migrate or modernize with Red Hat and Cisco
Virtualization has been an evolving part of ITOps over the past several years. A variety of applications run on virtualization technology and many companies are...
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I’ve SSH’d Into EC2 Dozens of Times. This One Still Took 4 Hours!
The Problem Yesterday I spent four hours trying to SSH into an EC2 instance. I tried from both macOS and Windows terminals, suspecting a local system issue, bu...
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🩺 How I Troubleshoot an EC2 Instance in the Real World (Using Instance Diagnostics)
When an EC2 instance starts misbehaving, my first reaction isn’t to SSH into it or reboot it. Instead, I open the EC2 console and go straight to Instance Diagn...
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Speeding up Pulumi Operations by up to 20x
Today we’re introducing an improvement that can speed up operations by up to 20x. At every operation, and at every step within an operation, pulumi saves a snap...
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🚨 AWS 132: Data Time Travel - RDS Snapshots and Restoration
!AWShttps://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fupload...
- · devops
You’re Running EC2 Instances That Do Nothing
Problem Somewhere in your account, EC2 instances are running with no traffic, no purpose, and no owner. They were launched for a “temporary test,” but now they...
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Day25: Design Smart. Spend Less. Scale Right. Because every cloud decision has a price tag
Cost‑concerned architecture reviews Cost‑concerned architecture reviews specifically target the design and evaluation of cloud‑based systems in terms of cost,...