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How Pod Identity Works in EKS?
You want your application or workload in Kubernetes (EKS) access AWS API or AWS resources like S3, DynamoDB, etc. You have two best ways of giving access — (a) via IRSA (b) via Pod Identity and AWS recommends Pod Identity. So, let’s unfold that one.
October 19, 2026
SSL/TLS Certificates
Understanding SSL/TLS Certificates can be confusing especially with varying types, different Certificate Authorities, The Certificate Chain, etc. I try to simplity that.
October 8, 2026
How HTTPS Works?
This is my understanding of Why HTTPS is Required and How HTTPS Works. The exact facts like steps of particular algorithm, etc.s might differ but the general concept about HTTPS is almost similar (from the resources I have read).
October 2, 2026
Auto Scaling Web App In AWS Using Terraform
Deploying Auto Scaling Group for your application in AWS using Browser is easy but with Terrafrom you have important decisions to take, let’s do it together.
September 27, 2026
Ansible — Linear vs Free Strategy: Free is NOT FAST and Linear is NOT SLOW
Everyone says free strategy is fast in Ansible than linear — but here is the real story — observed one.
August 29, 2026
Understanding Privilege Escalation in Ansible: become is NOT The Whole Story
become: true is not always the solution, it’s half of the story. Let me tell you the rest of the story on ansible privilege escalation.
August 27, 2026
Linux Cgroups
Every thought of how linux organizes processes in parent-child relationship and how resources are managed and controlled efficiently like: limiting CPU usage, memory,etc. Cgroup in linux is the same technology that empowers Dockers and containers and the interesting part is — you can try it yourself right now.
August 17, 2026
Linux Namespaces
Linux Namespace goes very technical, but I am presenting this in plain way — everyone should understand “tech” but it can be in “less-tech” way too. Did you know Docker and containers may not have existed if Linux namespaces hadn’t existed?
August 16, 2026
Union/Overlay Filesystems: Docker Building Block
I knew from the beginning that union or overlay filesystem is one of the building block of Docker which makes image layers read only with tiny writable layer on top of them but never knew WTH is OverlayFS. I said “enough is enough” and finally learnt. Here’s everything you need to know — Docker is not only the use case tho, there is more OverlayFS offers.
August 16, 2026
How Multiple FROM Statements Works In Dockerfile
What actually happens under the hood when you write multiple FROM statements in the Dockerfile. I was surprised — you shouldn’t be, but after reading this…
August 16, 2026