Systems and Cloud Engineering, Architecture, DevOps, Infrastruture
In the first installment of this series, I covered a historical perspective on the topic of Infrastructure deployment/delivery and imperative style automation that used to be the norm. In the second installment, I went over the basics of Terraform, one of the most versatile and popular declarative IaC paradigms in the industry today. In this …
Platform Automation and Infrastructure As Code – 3 Read More »
A Kubernetes cluster has various components that are constantly emitting logs — at the node level, at the pod level, application log data and so on. A very standard model for implementing a centralized log management framework is to use the combination of Elasticsearch, Fluentd and Kibana (aka an EFK Stack). There are many good …
Setting up a log management system on Kubernetes Read More »
Out of the box, metrics-server doesn’t work on a kubeadm managed k8s server. When deployed out of the box, the associated pod goes into a CrashLoopBackOff state. In order to fix this issue, we have to edit the deployment and add a few parameters — Following relevant section of the deployment file is shown in …
Installing metrics-server on a kubeadm managed k8s cluster Read More »
In the first post of this series, I had alluded to walking through terraform and how it can be leveraged as a standard tool for deployment across a variety of environments. In this post, I will walk through the basics pre-requisites I understand them, to start using terraform on both AWS as well as Azure. …
Platform Automation and Infrastructure as Code – 2 Read More »
A Trip Down Memory Lane Today there are many tools available to automate configuration management and automate the deployment of infrastructure components. For those of us who grew up in our professional roles working on UNIX and Linux, writing scripts to automate repetitive tasks and tasks that are susceptible to human error is second nature. …
Platform Automation and Infrastructure as Code (IaC) – 1 Read More »
The topic of providing a persistent storage in the Kubernetes world is simpler today than it was a couple of years back. In order for this series and my personal edification, I opted to set up GlusterFS on the Kubernetes nodes in what is known as a “hyper-converged” deployment. The industry terms of “converged” and …
Kicking the Tires on Kubernetes — Part 5 Read More »
In continuation of this series, where I left off in Part 3 was with a single-master kubernetes cluster build. That obviously is not so great for real-world implementations, and is meant for quick proof-of-concept builds, as part of learning the technology or rapid prototyping. In order to make Kubernetes reliable, the control plane needs to …
Kicking the Tires on Kubernetes – Part 4 Read More »
So in the two earlier installments, I provided an overview of my mind map vis-a-vis Kubernetes and containerization. In this post I will focus on what I did to set up a test rig in my home laboratory environment. Over the years, my better half and I have acquired a whole bunch of mac minis, …
Kicking the Tires on Kubernetes — Part 3 Read More »
High-level Architecture First a disclaimer — The way I learn/understand things is the “rosetta stone” way. By that, what I mean is, I try to map my subject of study to something that I’m already familiar with (if such an association is practical).So, please bear with me as I ramble on about the way I …
Kicking the Tires on Kubernetes — Part 2 Read More »
Containerization — My Historical Perspective Containerization is not really a new concept in the *NIX world. The first time I ran into containers was when I used to manage web infrastructure at a large Auto Financing company back in 2000-2001. Back then we ran Netscape (or was it called iPlanet) webservers to host the website …
Kicking the Tires on Kubernetes – Part 1 Read More »