How to run the container with the help of Docker .

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>