In this article, I will walk you through how we ran one-off jobs on Kubernetes nodes as soon as they join the cluster. Disclaimer: This is going in for a mutating approach which is against a lot of the principles Kubernetes stands for and you should do this only if…

I recently upgraded my Kubernetes Cluster to 1.16 and the experience was quite interesting. I have summarised below the environment I was in, the challenges faced and the mitigation steps. The environment Managed Kubernetes control plane of EKS with self-managed node-pools. Official EKS AMIs running in the node pools. Multiple node pools/AWS…

There are a lot of job titles related to people who focus on Infrastructure Automation — Devops Engineer, Site Reliability Engineer, Cloud Engineer, SysAdmin to name a few. The goal of this post is not to dive into the definition of these titles but rather focus on skills to be…

Recently I attempted the CKA and got through with a 90%. I thought of putting together my experience during the preparation phase and what helped me during the test. Get familiar with kubectl auto completion While I am old-school in the sense that I believe I will learn commands only if I write them my self…

Introduction Typical application deployments on Kubernetes with Helm might involve building, testing and packaging your helm charts to a remote repository and then deploy them to your Kubernetes cluster through `helm upgrade` using your CD tool. …

INTRODUCTION — As you may know, Ansible stores configurations in yml format in key value pairs. Several times, these key value pairs may need to contain data that is sensitive and needs to be encrypted. Once encryption is achieved, the next typical challenge faced by most teams is to share the secret…