Containerization_and_DevOpsLab

Lab Report: Experiment 2

Docker Installation, Configuration, and Running Images

Date: 2/2/2026 Author: Divyanshu Gaur

1. Objective

The objective of this lab is to:

Pull Docker images
Run containers
Manage container lifecycle

2. Procedure and Results

Step 1: Pull Image

The first step involves fetching the Nginx image from Docker Hub

Command: docker pull nginx Execution Screenshot:

Step 2: Run Container with Port Mapping

The container is started in detached mode with host port 8080 mapped to container port 80.

Command: docker run -dp 8080:80 nginx

Execution Screenshot: Docker Run Nginx

Step 3: Verify Running Containers

To confirm the container is active and check the assigned status and ports, the ps command is used[cite: 15].

Command: docker ps

Execution Screenshot: Docker PS Output

Step 4: Stop and Remove Container

To manage the lifecycle, the container is stopped first and then removed using its ID.

Stop Command: docker stop 432421f52b7b
Remove Command: docker rm 432421f52b7b

Stop Screenshot: Docker Stop

Remove Screenshot: Docker Remove Container

Step 5: Remove Image

The final step in the lifecycle management is removing the image from the local repository.

Command: docker rmi nginx

Execution Screenshot: Docker Remove Image

3. Result and Conclusion

Result

Docker images were successfully pulled, containers executed, and lifecycle commands performed.

Overall Conclusion

This lab demonstrated containerization using Docker, highlighting clear performance and resource efficiency. Containers are better suited for rapid deployment and microservices, whereas VMs provide stronger isolation.