Day 31 Task: Launching your First Kubernetes Cluster with Nginx running

What is minikube?

Minikube is a tool which quickly sets up a local Kubernetes cluster on macOS, Linux, and Windows. It can deploy as a VM, a container, or on bare-metal.

Minikube is a pared-down version of Kubernetes that gives you all the benefits of Kubernetes with a lot less effort.

This makes it an interesting option for users who are new to containers, and also for projects in the world of edge computing and the Internet of Things.

Features of minikube:

(a) Supports the latest Kubernetes release (+6 previous minor versions)

(b) Cross-platform (Linux, macOS, Windows)

(d) Multiple container runtimes (CRI-O, containerd, docker)

(e) Direct API endpoint for blazing fast image load and build

(f) Advanced features such as LoadBalancer, filesystem mounts, FeatureGates, and network policy

(g) Addons for easily installed Kubernetes applications

(h) Supports common CI environments

Task-01:

Install minikube on your local:

For installation, you can Visit this page.

If you want to try an alternative way, you can check this.

Steps:

Install minikube on Linux, for installation use minikube site.

Here use above 2 commands for installing minikube on Linux.

To confirm successful installation of both a hypervisor and Minikube, you can run the following command to start up a local Kubernetes cluster:

minikube start - download Kubernetes for you

minikube start --driver=<driver_name>

In below image, we used driver_name=docker, so first you need to install docker in your machine.

Note-

Docker is also installed in your system.

Kindly use 2 cpu with your machine then only this will work, aws free tier will not work.

Once minikube start finishes, run the command below to check the status of the cluster:

minikube status

If you have previously installed Minikube, and run:

minikube start

and minikube start returned an error:

machine does not exist

then you need to clear minikube local state:

minikube delete

For log in to minikube use command:

minikube ssh

Pod:

Pods are the smallest deployable units of computing that you can create and manage in Kubernetes.

A Pod (as in a pod of whales or pea pod) is a group of one or more containers, with shared storage and network resources, and a specification for how to run the containers. A Pod's contents are always co-located and co-scheduled, and run in a shared context. A Pod models an application-specific "logical host": it contains one or more application containers which are relatively tightly coupled.