Kubernetes

Kubernetes

TIP

K8s - Official Docs

Kubernetes is a portable, extensible, open source platform for managing containerized workloads and services, that facilitates both declarative configuration and automation. It has a large, rapidly growing ecosystem. Kubernetes services, support, and tools are widely available.

Components and Manifests

Components of K8s and examples on how to declare them via manifests in k8s.

INFO

Components - Docs

Concepts

Important concepts about kubernetes.

INFO

Concepts - Docs

Kubectl

Useful commands

Useful and tested kubectl commands

INFO

Kubectl - Docs

K3D

K3D - Official Docs

k3d is a lightweight wrapper to run k3s (Rancher Lab’s minimal Kubernetes distribution) in docker.

k3d makes it very easy to create single- and multi-node k3s clusters in docker, e.g. for local development on Kubernetes.

Requirements

• docker to be able to use k3d at all
• kubectl to interact with the Kubernetes cluster

brew install k3d

Create Cluster

Creating K8s cluster in one line.

TIP

If you wanna expose your cluster in the local networ, provide your machine IP in --tls-san section.

Usage

k3d cluster create <CLUSTER_NAME> --agents 4 --servers 1 --k3s-arg "--tls-san=<YOUR_MACHINE_IP>@server:*"

Real Example

k3d cluster create home --agents 4 --servers 1 --k3s-arg "--tls-san=192.168.0.243@server:*"

List Clusters

k3d cluster list

Lens - GUI for K8s

Open Lens Github

Lens Desktop is the only application you need to take control of your Kubernetes clusters. It's built on open source and free.

Install

brew install --cask openlens

Important Extensions

@alebcay/openlens-node-pod-menu --> Enables pods logs and shell.

Go to extensions (ctrl+shift+e) add this name in the box: @alebcay/openlens-node-pod-menu and hit install

K9S - TUI for K8s

K9s Site

K9s is a terminal based UI to interact with your Kubernetes clusters. The aim of this project is to make it easier to navigate, observe and manage your deployed applications in the wild.

Install

 brew install derailed/k9s/k9s

Kdash - TUI for K8s

A simple terminal dashboard for Kubernetes built with Rust.

Install

brew tap kdash-rs/kdash
brew install kdash

Helm Charts

The best way to deploy apps on kubernetes.

Helm - Site

Helm uses a packaging format called charts. A chart is a collection of files that describe a related set of Kubernetes resources. A single chart might be used to deploy something simple, like a memcached pod, or something complex, like a full web app stack with HTTP servers, databases, caches, and so on.

Artifact Hub

Find, install and publish Kubernetes packages.

Artifact Hub - Site