Forem: Nandkishor Khandare

How to run the container with the help of Docker .

Nandkishor Khandare — Wed, 14 May 2025 16:39:02 +0000

1) Create the account on https://hub.docker.com/ so you can trace your docker container/images.

2) You will get the username which we required for running your container you have to configured it over the docker with username and password.

3) You also need the Dockerfile to run the containers so make sure you are in the same folder where this dockerfile is present .

4) Follow the below command step by step

🟢 Step 1: Write a Dockerfile
🟢 Step 2: Build Docker Image

docker build -t <your-dockerhub-username>/<image-name>:<tag> .
# Example:
docker build -t iamnk007p/python-sample-app-demo:v1 .

🟢 Step 3: Verify Image is Built

docker images

🟢 Step 4: Run Container from Image

docker run -d -p 5000:5000 --name my-python-app iamnk007/python-sample-app-demo:v1
# -d = detached mode
# -p = port mapping (host:container)
# --name = custom container name

or you can run below command as well just make sure you are mentioning port in dockerfile

docker run -it iamnk007/python-sample-app-demo

🟢 Step 5: Check Running Containers

docker ps

🟢 Step 6: Access Application in Browser

Open: http://localhost:5000
(Depends on your app's port)

✅ Push Docker Image to Docker Hub

🟢 Step 8: Login to Docker Hub

docker login

🟢 Step 9: Push Image to Docker Hub ( make sure you add tag (v1))

docker push iamnk00/python-sample-app-demo:v1

✅ Stopping & Cleaning Up

docker stop my-python-app

🟢 Remove Container

docker rm my-python-app

🟢 Remove Image (Optional)

docker rmi iamnk007/python-sample-app-demo:v1

summary (Quick Recap Commands):

docker build -t <username>/<image>:<tag> .
docker run -d -p 5000:5000 --name <container-name> <username>/<image>:<tag>
docker ps
docker login
docker push <username>/<image>:<tag>
docker stop <container-name>
docker rm <container-name>
docker rmi <username>/<image>:<tag>

Guide to install Minikube on windows to practice Kubernetes and create your first pod.

Nandkishor Khandare — Mon, 12 May 2025 09:56:02 +0000

As a DevOps engineer we are using Kubernetes daily so for practicing it on your local machine we can set up the Minikube which help to practice the Kubernetes concepts.

Prerequisites for installing Minikube on Windows.

2 CPUs or more
2GB of free memory
20GB of free disk space
Internet connection
Container or virtual machine manager, such as: Docker Desktop I will suggest.

Search for the Windows PowerShell on Windows right click on it and run it as an administrator

Now run the below Commands one by one

Step 1: Use the below command to download and run the installer for the latest release.

New-Item -Path 'c:\' -Name 'minikube' -ItemType Directory -Force
Invoke-WebRequest -OutFile 'c:\minikube\minikube.exe' -Uri 'https://github.com/kubernetes/minikube/releases/latest/download/minikube-windows-amd64.exe' -UseBasicParsing

Step 2: Add the minikube.exe binary to your PATH

$oldPath = [Environment]::GetEnvironmentVariable('Path', [EnvironmentVariableTarget]::Machine)
if ($oldPath.Split(';') -inotcontains 'C:\minikube'){
  [Environment]::SetEnvironmentVariable('Path', $('{0};C:\minikube' -f $oldPath), [EnvironmentVariableTarget]::Machine)
}

Step 3: Start your cluster

minikube start

Step 4: See the status of the minikube if it is installed or not

minikube status

If you are able to see the above details after running 4th command then Congratulations you have done the Minikube set up !!!

Run your first pod on Kubernetes with the help of minikube.

Step 1: Open the GitBash and change the directory to Download.

cd /c/Users/<your name>/Downloads

Step 2: Create the pod.yaml file and paste the below data into it.
the following is an example of a Pod which consists of a container running the image nginx:1.14.2.

apiVersion: v1
kind: Pod
metadata:
  name: nginx
spec:
  containers:
  - name: nginx
    image: nginx:1.14.2
    ports:
    - containerPort: 80

Step 3: Run the below command to create the pod with the help of the pod.yaml file

kubectl create -f pod.yaml

It will shows like below image it means pod has been created.

Step 4: Run the below command to see which pods are running in the Kubernetes.

kubectl get pods

It will show like this

Step 5: You can use the below commands according to your requirement.

a. Get the all details of the pods

kubectl describe pod nginx

b. Show Output in Wide Format (More Details like IP, Node)

kubectl get pods -o wide

c. Get Logs of a Pod (For Debugging)

kubectl logs <pod-name>

d. Check Pod's YAML Definition (Actual Configuration)

kubectl get pod <pod-name> -o yaml

e. Open Minikube Dashboard (GUI View):It will open the dashboard in the web browser.

minikube dashboard

That's all for the day Happy Learning !

How to install Terraform on Windows and run your first project

Nandkishor Khandare — Fri, 25 Apr 2025 14:03:29 +0000

This post is helpful for installing the Terraform on windows and running your first Terraform module.
Module: Creating the EC2 instance with the help of Terraform
Requirements: AWS, Vs code and Terraform.

Follow the below steps:-

Install the latest version of Terraform from there official documentation and AWS CLI
Terraform: https://developer.hashicorp.com/terraform/install
AWS CLI: https://docs.aws.amazon.com/cli/latest/userguide/getting-started-install.html
Terraform is not like other executable .exe we just need to download it and check by opening CMD in the same folder and run the below command

terraform -v

If You see the below output then congratulation its installed.

Terraform v1.11.4

3.Now open the same folder in VS-Code and try to check there as well in the new terminal.

4.Install the 2 extension now AWS Toolkit and Terraform

AWS toolkit: click on the extension after installing it then click on View from the top bar then click on command pallette then type AWS:create credentials profile it will ask for key and secrets give them one by one done.( you will get key from your aws ac)
Terraform: just install this extension no need to do the configuration.

Create the new file main.tf and paste the data over there which we are going to use to run the terraform this data is in HCL language you can refer below documentation for that
https://registry.terraform.io/providers/hashicorp/aws/latest/docs
Below I am providing the my Github repository link where I have store my code just replace access key, secret key and the AMI according to the AWS region and add this code to you main.tf

https://github.com/I-am-nk/Terraform

7.After adding code to the main.tf run the below sets of command
a.

terraform init

terraform plan

( after running this command it will ask for pem file name give the name according to you)
c.

terraform apply

terraform destroy

(run it only you want to destroy the script)