Introduction

If you are here, then most likely you would like to start with kubernetes but you do not know where to begin. Like me once.

K8s documentation can be found at https://kubernetes.io.
K8s is an orchestration tool for your cloud. It means it would create, maintain, kill, restart and do some more things with your cloud computers.
Basic commands of kubernetes are kubectl and kubeadm.
Most things are configured using .yaml or .json files.

Difficult things:
- graphical management is possible but unstable, with issues, not everything can be done there - text-only command line is something you must get used to
- security is quite complex
- multiple machines communication won't always work - causing a lot of issues

Comments

Post a Comment

Popular posts from this blog

Kubernetes cluster

To run anything with kubernetes we need to define a configuration for our cluster first. Easy way is to use minikube. We won't use that. There are at least 3 executables you would use: kubelet - an application that runs on every node allowing remote interaction kubeadm kubectl - with it you can control the cluster (on local or remote machines), ex. on your computer which might be NOT a part of cluster... in our case it would connect to local host So go to https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/install-kubeadm/ then execute # systemctl restart kubelet # we are trying to restart kubelet... I already had this working # journalctl -xe  # wait... something is not right let's check the logs # swapoff -a  # it was refusing to run on my system as I had swap enabled thus I'm disabling the swap # service kubelet status  #checking kubelet status... and it is still not starting... in fact restarting all the time # service kubelet stop  # no need t...
Read more