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Ask HN: Are you learning Kubernetes/Docker? What resources are you using?

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Re: Ask HN: Are you learning Kubernetes/Docker? What resources are you using?

#11

Post by imauld »

tmaly wrote: post #2

I looked at it a few years back, and I read a book about docker on a flight back from Asia. I would be interested in some short to the point tutorials with practical examples.

Kubernetes: Up & Running would be a good book to start with.

Re: Ask HN: Are you learning Kubernetes/Docker? What resources are you using?

#12

Post by imauld »

tixocloud wrote: post #6

Is there like a 1 pager summary of what Kubernetes/Docker is? Ever since my transition to the business side, I feel like I've lost touch. What's the benefit of deploying using Docker?

Isolation, repeatability and speed of deployment:

- Docker images are portable. They will run anywhere there is Docker. No surprise missing system packages when deploy.

- They are isolated from the the rest of the machine. Inconsistencies between dev and prod are minimized greatly.

- Kubernetes allows you to deploy stateless, immutable images using a declarative manifest. IMO this is far superior to imperative scripts that are used in a lot of places.

- Kubernetes pods start up in seconds when they are added or restarted. Deployments for me routinely take under a minute. Compared to our EC2 deployment strategy which can easily take over half an hour to deploy a single node.

The list goes on but these are the key things for me. I would suggest checking out some videos by Kelsey Hightower is want to see more of it in action.

Re: Ask HN: Are you learning Kubernetes/Docker? What resources are you using?

#13

Post by jonathan-kosgei »

imauld wrote: post #10

I recently read the book "Kubernetes: Up & Running" and it was a great resource. Written by Kelsey Hightower it's short and to the point has a bunch of great examples. As a starter I would get Minikube going on your laptop: https://kubernetes.io/docs/getting-started-guides/minikube/ Then write a small REST app in your favorite language, nothing fancy just something you can easily deploy. Get it running in Docker, and…

Great points +1

Re: Ask HN: Are you learning Kubernetes/Docker? What resources are you using?

#16

Post by rbradford »

When my team was learning about Kubernetes we worked through Kelsey Hightower's "Kubernetes the Hard Way": https://github.com/kelseyhightower/kubernetes-the-hard-way

Obviously this much more complicated that using a tool such as kubeadm to deploy Kubernetes however it gives you a really good understanding of how a Kubernetes cluster is put together.

One of my colleagues used the experience from working through this with a set of VMs to create a tool called kubicle: https://ciao-project.github.io/kubicle.html

This allows you to build a Kubernetes cluster on your own physical machines by building it on top of a Ciao cluster if you're not able to use public cloud hosted VMs. For learning you can combine this with Ciao's "singlevm"/ccloudvm mode to run a cluster inside a VM (with nested VMs.)

Full disclosure: I currently work on the Ciao team @ Intel :-)

Re: Ask HN: Are you learning Kubernetes/Docker? What resources are you using?

#18

Post by cbb_ »

I found a blog series here:

https://kumorilabs.com/blog/k8s-0-introduction-blog-series-k...

It’s not necessarily the best resource for actually learning the ins and outs of Kubernetes; however, I think it’s a good starting place.

After going through those, I worked on deploying a small application using stuff covered in those labs.

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