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Michael Levan 👨🏻‍💻☕️ Profile picture
@TheNJDevOpsGuy
Apr 1, 2022 • 5 tweets • 1 min read • Read on X
Learning Kubernetes isn't just about learning Kubernetes.

If you want to deploy to Kubernetes, what do you need? An app. To deploy an app, you need to learn a programming language.

Deploying to a cluster and needing things like load balancers, clustering, and...

A thread 🧵
self-healing, you need to understand how infrastructure works on the backend.

To automatically deploy apps to Kubernetes clusters, you need to know CICD and/or (I'd recommend "and") GitOps
To understand Kubernetes ingress and service mesh, you need to understand networking and how traffic works between microservices
To understand Kubernetes security, you need to understand network security and application security
Point being: you can't just break into Kubernetes out of nowhere. You need to understand several underlying components

#kubernetes #devops

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More from @TheNJDevOpsGuy

Michael Levan 👨🏻‍💻☕️ Profile picture
Jul 22, 2023
My predictions in Kubernetes and Platform Engineering for the next 5-7 years 👇🏻
✅ Kubernetes

I spoke to a few colleagues in various roles and based on my research combined with my experience, I believe Kubernetes has a solid 3-4 years left in the tank before it’s just there in the background and no one cares about it.

But then what’s next?
✅ Platform Engineering

I believe in a year or so platform engineering will be in full once it’s actually defined properly.

For example - A lot of folks say that it’s all about creating IDPs, but CNCF says otherwise… so there’s a mix in what it actually is right now.
Read 5 tweets
Michael Levan 👨🏻‍💻☕️ Profile picture
Feb 27, 2023
What are the 50 Kubernetes concepts that you should know?

Well, I like to break them down into three sections:
- Day Zero
- Day One
- Day Two

A thread 🧵
Day Zero is all about the planning and architecture phase. How will your environment look?
Day One is all about the deployment phase. Deploy your clusters and ensure that the process is repeatable.
Read 5 tweets
Michael Levan 👨🏻‍💻☕️ Profile picture
Feb 25, 2023
Kubernetes isn't something that you just "turn on" and walk away.

It's a platform that has to be considered a main part of how you deploy.

But how?

A thread 🧵
It should be looked at no different than when you began to implement VMWare on bare metal or the cloud in your environment.

Kubernetes can't be something that's just on the back burner and implemented with 10% capacity. You have to think about:
✅ What the future of the environment will look like

✅ How you'll plan upgrades

✅ What your backup and disaster recovery plan is

✅ How you're going to move platforms/environments (for example - AWS to Azure) if you need to
Read 4 tweets
Michael Levan 👨🏻‍💻☕️ Profile picture
Dec 1, 2022
If you have an EKS cluster, that EKS cluster will have an IAM Role associated with it.

Ensure that the Role has all permissions needed.

For example, if you need to create Volumes for k8s, it'll need the following Policy Attachment.

How did I find this out?

#kubernetes #AWS Image
First, I tried to create a PVC and noticed that it was in a Pending state Image
Next, I described the PVC to see what was going on and I saw this.

`kubectl describe pvc name_of_pvc -n namespace_name` Image
Read 7 tweets
Michael Levan 👨🏻‍💻☕️ Profile picture
Dec 1, 2022
So... what is Kubernetes?

As Kubernetes continues to gain popularity, engineers have to know how Kubernetes works, and why it might make sense in their environment.

A thread 🧵
Here are a few questions that you should ask yourself

- What benefits does Kubernetes bring to environments?
- What do technologies like containerization do for organizations?
- Does Kubernetes actually help teams?
In this blog post, I’ll provide some basic background on containers and Kubernetes.

Also, some suggestions for how to think about Kubernetes for infrastructure pros.
Read 4 tweets
Michael Levan 👨🏻‍💻☕️ Profile picture
Nov 30, 2022
Are you using Ingress Controllers in your Kubernetes environment?

If not, let's break down what they are.

A thread 🧵
At a high level, Ingress Controllers are:
- Specify multiple paths
- Specify multiple services

All in one load balancer.

Let's break it down.
ingress Controllers are just like any other Controller in a Kubernetes environment. They confirm that the current state is the desired state for the deployment.
Read 7 tweets

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