# Minikube Installation
## Launching your First Kubernetes Cluster with React-Django running
### Awesome! You learned the architecture of one of the top most important tool "Kubernetes".
## What about doing some hands-on now?
Let's read about minikube and implement *k8s* in our local machine
1. **What is minikube?**
*Ans*:- 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.
1. **Features of minikube**
*Ans* :-
(a) Supports the latest Kubernetes release (+6 previous minor versions)
(b) Cross-platform (Linux, macOS, Windows)
(c) Deploy as a VM, a container, or on bare-metal
(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
* ## Update the system.
### sudo apt update
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/87ae8030-8d87-4e64-b413-b7a06637aeb5 align="left")
* ## Installing docker on local
### sudo apt install -y [docker.io](http://docker.io)
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/637472bc-4975-4699-87a7-c332556b2205 align="left")
* ## Start docker.
### sudo systemctl start docker
### \-Error as I am running Ubuntu is running on Windows.
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/6dc6244c-224e-47d1-90f0-4885f44fa6e9 align="left")
### Run commands to fix the errors.
### sudo -b unshare --pid --fork --mount-proc /lib/systemd/systemd --system-unit=basic.target
### sudo -E nsenter --all -t $(pgrep -xo systemd) runuser -P -l $USER -c "exec $SHELL"
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/5a20723b-7f4f-4f04-a3d8-9839d06fe6be align="left")
* ## Start docker.
### sudo systemctl start docker
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/6cfefaf6-065b-4290-b456-d45e01931150 align="left")
* ## Enable docker every time the system restarts
### sudo systemctl enable docker
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/95e134a0-4c21-4545-a5d0-e94e5e2c6b52 align="left")
* ## Adding a current user to docker group to prevent permission denied error.
### sudo usermod -aG docker $USER and newgrp docker
### sudo reboot
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/c0e34b88-d7f7-44a4-9137-9db077beb03a align="left")
* ## Downloading minicube.
### curl -Lo minikube [https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64](https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64)
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/1daad3dd-bbf9-4853-8c87-adc86bb5544a align="left")
* ## List all the files.
### ls : minikube file has been downloaded
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/7c0923fc-5908-46d3-8ee8-61d6f85cd504 align="left")
* ## Changing file permission to make it executable and moving the file minikube to bin folder
### chmod +x minikube
### sudo mv minikube /usr/local/bin/
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/3b25b1ec-3f5f-42e3-9b23-5986fdb17b3b align="left")
* ## Check minikube is working.
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/db9879c5-dd1d-4a88-822a-8762b36f1979 align="left")
## Download kubectl
### curl -LO "[https://dl.k8s.io/release/$(curl](https://dl.k8s.io/release/$(curl) -L -s [https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl](https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl)"
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/28e58a0c-14a6-47a9-91a9-6b5f567f2e8a align="left")
* ## Changing kubectl file permission to be executable and moving it to bin folder.
### chmod +x kubectl
### sudo mv kubectl /usr/local/bin/
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/dc33712b-6cad-4947-a03c-c45e6bf37633 align="left")
* ## Start minicube.
### minikube start --driver=docker
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/e452a124-5d0f-4148-900f-00795342c7b5 align="left")
* ## View all the running container.
### docker ps: minicube container is running.
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/e37629a8-7a6a-449c-9142-3ed2b828c078 align="left")
* ## Go inside the minikube container and view all the container.
### minikube ssh:to go inside the minikube container
### docker ps : view all the running container in minikube
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/bb5364c5-b053-463c-8b50-ab6949aa0182 align="left")
* ## To view all the nodes
### kubectl get nodes
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/51a14b28-fc7c-4135-9e6c-b6b1bb9e0571 align="left")
* ## To view the pods.
### kubectl get pods
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/c979d6ac-29b8-4fe8-ad1f-5d4e3589562b align="left")
## Task-02:
## Create your first pod on Kubernetes through minikube.
* ## Create a namespace.
### kubectl create namespace react-django-ns
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/bf97640c-d2ef-4798-b5db-beb684c42c19 align="left")
* ## To view namespaces.
### kubectl get namespaces
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/377edff4-0093-478e-8371-cf2d864f65fc align="left")
* ## Creating a directory and create a pod.yaml file
### mkdir django-project-k8
### touch pod.yaml
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/57cd61be-4a3f-4a2f-9af7-8ede1c8de1a9 align="left")
### vim pod.yaml and cat pod.yaml
### apiVersion: v1
### kind: Pod
### metadata:
### name: django
### namespace: react-django-ns
### spec: containers:
* name: django-ctr image: django ports:
* containerPort: 80
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/8348da99-782c-4468-9a87-8cde1d5ebac6 align="left")
* ## Create pod from pod.yaml file
### kubectl apply -f pod.yaml
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/8bb4d77b-c8bb-4ac1-88d3-293ebb67186e align="left")
* ## To view the pods.
### kubectl get pods : As no pods are created in default namespace
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/a341b4a9-8e0b-473d-967e-1e49cee64ab1 align="left")
### kubectl get pods --namespace=react-django-ns
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/423ae9f6-5dad-499f-a81a-980acfe31e49 align="left")
* ## To view the IP address of the pod.
### kubectl get pods --namespace=react-django-ns -o wide
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/3e5ee1be-f1a1-490f-a95c-c34c6d46c0bc align="left")
* ## To view the detailed information of the pod.
### kubectl describe pod --namespace=react-django-ns
![image](https://github.com/ManishNegi963/90DaysOfDevOps/assets/124788172/7af3ab38-a01d-4eeb-bb58-32fb59c5809b align="left")
## To delete the pod.
### kubectl delete pod --namespace=react-django-ns
For installation, you can Visit [this page](https://minikube.sigs.k8s.io/docs/start/).
If you want to try an alternative way, you can check [this](https://k8s-docs.netlify.app/en/docs/tasks/tools/install-minikube/).
## Let's understand the concept **pod**
*Ans:-*
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 that are relatively tightly coupled.
## Installation of minikube on local.
*Happy Learning :)*