I am sorry if this question sounds silly.
I would like to know any place where I can learn the kubernetes simple to hard way where a beginner can get the whole idea of kubernetes, from scratch until you deploy an application to aws with other tools such as prometheus, stackstorm etc.
I know there are many Youtube videos and Udemy courses, but, I need a different source, maybe a Github Repository, or a Blog that teaches a newbie about Kubernetes from scratch to at least to the intermediate level with commands using minikube.
Thank you so much for your patience with me for a question like this but I really appreciate this. It is hard to find a good tutorial, videos are really boring or out of the scope sometimes.
If you are really want to do it all manually you should check Kubernetes The Hard Way. This tutorial does not have any automation process, you need to do all manually. Honestly I would recommend it after a few days/weeks of practicing with Kubernetes.
Second good place to learn Kubernetes is Katakoda. You can find there Kubernetes and Docker tutorials. If you want to learn Kubernetes you also need to learn something about containers before.
Another place is Kubernetes Tutorials. Also here you can find some Tasks or Concepts. The same site contains whole K8s documentation with real examples.
For environment to run Kubernetes I would advise you Minikube. It will create you one-node cluster. Before you will need instal Docker and Kubectl.
As for beginner I would suggest to use Minikube with --vm-driver=none.
Last source I wanted to mentioned is Medium. You will be able to find many tutorials for Kubernetes/Kubeadm/Minikube.
You can try katacoda .They have provide dummy kubernetes environment.
katacoda
.
Although kubernetes docs are enough to get to know about deployments,services,pods etc. You can try those example in katacoda environment. Kubernetes playground
Katacoda also have some examples .
Related
i'm completely new to Kubernetes so forgive me if im asking some dumb questions :-0
when you deploy apps to k8s, you usually write up some yaml files for the app right?
how do you know which k8s objects you should make config file for?
for example, im following a tutorial that deploys mysql on k8s and it says i would need deployment.yaml, secret.yaml, pv.yaml, pvc.yaml and service.yaml but how do you know in the first place you need these config files in order to successfully deploy mysql app?
are there any guide or standard to follow on this matter? all the tutorials or documentations i been watching and reading dont tell me which objects to define for a particular app and why.
i feel like i dont understand k8s at all or seriously missing some import points here
thanks for the answer in advance!!
i've been googling to find answers on the question but can't find any concrete one yet :(
To answer your question in short:
Use Visual Studio Code Kubernetes Tools for a quick generation of deployment manifests (yaml files)
Learn what each key and value in deployment manifests means by reading the docs and modify generated manifests accordingly.
This is way to broad to give a decent answer for, but to make it short. Mentioned files "deployment.yaml, secret.yaml, pv.yaml, pvc.yaml and service.yam" are not specific to only mysql, it's just what you need to deploy your app on Kubernetes. It's not exactly a entry friendly topic and there is just about no reason to write down entire tutorial just for this post, as there is plenty of sources available, so I will just recommend those that I remember helped me:
"you need to learn Kubernetes RIGHT NOW!!" By NetworkChuck
https://www.youtube.com/watch?v=7bA0gTroJjw
"Kubernetes Tutorial for Beginners" by TechWorld with Nana
https://www.youtube.com/watch?v=X48VuDVv0do
And then there is official documentation: https://kubernetes.io/docs/home/
I'd also not skip on paying for some test clusters with the hosting provider, as you will find out that quite a chunk of those files are pre-generated by them.
Hope this helps
so I'm using this repo
https://github.com/wso2/kubernetes-apim/blob/master/simple/am-single/README.md
To deploy WSO2 to an AKS service.
I have my pods setup, as well as services and ingresses.
The thing is I can't access my services.
In the beginning it told me to install the nginx-ingress, I suppose it has something to do with that. If anyone can help me get through this, it would be huge.
Yes, you have to create an Ingress Controller which allows you to bring traffic into the K8S cluster. You can refer to this document. Make sure you follow the AKS-specific section from the document. This will provision IAAS provider-specific infrastructure components that are required along with NginX. After Installing the ingress follow the instructions here.
I usually hate this kind of "rtm" answer, but it's really not worth doing a duplicata of this great documentation here.
It's worth going through the whole walkthrough even if at some point you figured out what's wrong. You'll learn a lot :)
Stupid question, but right now I'm deploying my Kubernetes cluster inside a VM. Is there a way to deploy it directly onto my machine?
I'm sure there has to be a easy fix but many of the docs I've read have been focused on deploying it inside VM.
I am assuming you are using some flavor of Linux; otherwise the information below won't be useful to you.
The easiest way of bare metal deployment ("onto your machine") is by using kubeadm. The documentation for that is excellent.
(If you need help with then reply with your exact OS flavor and version and I can edit this answer to reflect that specific situation.)
I'm in the need of learning how to use Kubernetes. I've read the first sentences of a couple of introductory tutorials, and never have found one which explains me, step by step, how to build a simulated real world example on a single computer.
Is Kubernetes by nature so distributed that even the 101-level tutorials can only be performed on clusters?
Or can I learn (execute important examples) the important stuff there is to know by just using my Laptop without needing to use a stack of Raspberry Pi's, AWS or GCP?
The easiest might be minikube.
Minikube is a tool that makes it easy to run Kubernetes locally.
Minikube runs a single-node Kubernetes cluster inside a VM on your
laptop for users looking to try out Kubernetes or develop with it
day-to-day.
For a resource that explains how to use this, try this getting started guide. It runs through an entire example application using a local development environment.
If you are okay with using Google Cloud Platform (I think one gets free credits initially), there is hello-node.
If you want to run the latest and greatest (not necessary stable) and you're using Linux, is also possible to spin up a local cluster on Linux from a cloned copy of the kubernetes sources, using hack/local_up_cluster.sh.
I just started playing around with Docker.io. Its a great platform for sure. I have an issue i need some help with. I ran a medium instance on ec2 setup docker. Now i want to run 2 wordpress blog independent of each other using docker.io on top of the medium instance.
Please if someone can kindly guide me to resolve this issue i will extremely grateful
Many Thanks Indeed
Hareem Haque
Updated:
Basically, what i am trying to do is run two nodes for docker (node 1 & node 2). I run another node (node3: private repo for docker). What i am looking to accomplish is i run two blogs (wordpress on node1). I export the docker images to node3 (updates/exports are done very rarely)
Since i am going to run wordpress i was hoping to run wordpress within Nginx and since node1/node2 will run 80 web i can put a physical node (nginx reverse proxy) in front of the two nodes and have the blogs run in ha mode.
I am hoping that this experiment work so i that i can get rid of the xen cloud platform we have in office. Its to bulky and I have to manage alot of components.
I would rather export/backup docker image with my live data once in a blue moon and not have to worry about failover and vm management.
The problem is that i have a novice when it comes to running docker and thus i am currently running around like a head less chicken with no idea where to properly begin.
I would be extremely grateful if you can provide any guidance/assistance indeed.
Best Regards
Hareem Haque
Hareem asked his question a while back, and there don't seem to be any good answers yet. I'm a noobie as well, and I too want to learn how to use a generic wordpress container that I can push to Amazon or test locally. I'm very new to docker, so this seems like a tall order!
Goal
For now, I'll start collecting some resources here. Maybe they will help Hareem, and others like myself. This document will turn into a complete answer, or prompt someone else to give their version of an answer (which I'm sure is not quite so complex.)
The Docker.io Index
First, the Docker index is a repository of already existing Docker.io components. Of these, there is a wordpress unit that seems relevant here:
jbfink - Wordpress 3.5.2.
Docker on EC2
There is as yet no official Docker support for Ec2. However, the Docker community suggests an install path using a tool called Vagrant. The instructions for this live here:
Docker Doc - Installing on Amazon EC2
Work In Progress
This is not a complete answer to the question. As of right now this only presents a couple of easy to locate resources, and perhaps goes against guidelines. Please bear with this!
Things that need to be answered:
How do we run / test the wordpress container(s) locally?
How do we push the container(s) up to the EC2 instance?
How do we wire the EC2 wordpress containers up to their own domains?
Hopefully I will answer these questions - contributions and forks are welcome. I think Hareem's question is worth answering!