This article is going to introduce you to the Infrastructure as a Service side of AWS. We’ll start from the basics of how accounts in AWS work and cover some fundamentals in this article. Then in the next post, we’re going to do something a bit more hands-on and see EC2 and S3 in action. AWS Accounts? So let’s talk a bit about AWS accounts first. If you just have a username and password for your account then you have what is called a root account. If you were sent a username, password, account id, and/or a special link to log in then you have an IAM user account. ...

Cloud computing is what everybody seems to be talking about these days? But what does it even mean? In this short article, I’ll go over what it is and the different types of cloud deployment and delivery models. What is Cloud Computing? Earlier to host applications you would have to rent or build data centers where you would store the hardware which would run your servers. Cloud computing simply refers to using computing resources on demand without directly managing them. So instead of building data centers and buying hardware to run your apps you simply rent compute power and use that to suit your needs. Who do you rent it from? Let’s get to that later in the cloud delivery models section. ...

Hey everyone, recently I developed quite an interest in Bash so I’ve been trying to learn it. Unlike other things, this time it wasn’t much-structured learning rather just some random tidbits I picked on here and there. In this post I’ll share those things so that together we can demystify this fancy language. Also, some things might just be about Linux in general rather than bash specific. #!/bin/bash You might have seen that a lot of bash scripts begin with #!/bin/bash. So what exactly is this? ...

Hey folks, in this post we’ll see how you can use Kyverno to enforce some best practices for your EKS cluster. For those not familiar, Kyverno is a Kubernetes native policy engine that aims to make your life easy when managing clusters. To know more you can read my previous post on Kyverno where we discuss the project and its internals in detail. With that out of the way, let’s get started! EKS best practices recommend the use of separate IAM roles for different use cases. For example, for dev and prod environments you should prefer to have separate IAM roles which can configure objects in those environments. Now the problem that arises with this is how do you make sure that the IAM role which has permission for the dev environment doesn’t accidentally create objects in the production environment? If you have the roles configured properly it would obviously not allow this to happen but with Kyverno not only can you fool-proof this but also make sure that if someone does try this, then it gets reported. ...

This is the final post in my “Do You Concur?” series. If you’ve not checked the other two out it is highly recommended you do that before reading this one. With that out of the way let’s get started! What Are Channels? A channel in Go can be best understood by comparing it with a box. It is a box where goroutines can put and take out the data. So essentially channels help your goroutines to share data. One goroutine can send a value into the channel and another goroutine can receive those values. A very simple code snippet demonstrating this is: ...