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Amila Senadheera

Tech enthusiast

9 posts tagged with "kubernetes"

Sharding MySQL seamlessly using Vitess

Posted on December, 2023

Initially, Kubernetes focused on stateless workloads, but its evolution with features like StatefulSets, CSI support, and the operator pattern now enables the management of stateful workloads. Vitess…

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GitOps using Argo CD

Posted on July, 2023

When you have an application deployed in a k8s environment, all the artifacts are version controlled in a version-control system like GitHub as a best practice. But who do apply these declarative…

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Clearing the Certified Kubernetes Security Specialist (CKS) exam!

Posted on July, 2023

I took the CKS exam on July 18th, a truly special day, and I am delighted to announce that I have successfully passed the exam. I would like to share some insights about my exam preparation and what…

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How do I become a Certified Kubernetes Administrator (CKA)

Posted on May, 2023

I faced the CKA exam on 30th May 2023 and passed. So, now I'm a CKA. As I posted on the CKAD exam, I am doing the same thing for CKA in this post. You can check the Credly Badge I received for my CKA…

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CoreDNS - How it solved the service discovery problem in k8s

Posted on March, 2023

DNS, it's one of the world's largest distributed databases. There is a bunch of RFCs explaining how DNS protocol actually works and how it evolved. Think of the Kubernetes environment as a small world…

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How I earned the CKAD certificate from Linux Foundation

Posted on December, 2022

It's almost the end of the year 2022. I faced the CKAD exam on the 26th of December and I could pass the exam. So, I thought about writing something about it so it would be helpful for someone else…

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Autoscaling Kubernetes Deployemts with Horizontal Pod Autoscaler

Posted on July, 2022

When you have a web application running, the major concern that most people underestimate is that if the resources are enough to serve the expected load. Recently a government website got launched in…

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Exposing Web Apps running in our Raspberry Pi cluster

Posted on April, 2022

This post is a continuation of my previous blog post called Let's build low budget AWS at home. Here, I will be explaining how to run a blog in the cluster and expose it to the public internet. I will…

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Let's build low budget AWS at home

Posted on April, 2022

No, I'm not kidding. We gonna make it. If you ever wanted to host your web-based project, you might have definitely used the solutions provided by AWS, Google Cloud, Azure, Digital Ocean, or blah blah…

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