Starting and stopping containers in Docker - Mini Project: Build & Apply

Starting and stopping containers

📖 Scenario: You are managing a small web application using Docker containers. You need to start and stop containers to control the app's availability.

🎯 Goal: Learn how to start and stop Docker containers using commands.

📋 What You'll Learn

Use the exact container name mywebapp

Start the container using the correct Docker command

Stop the container using the correct Docker command

Check the container status using Docker commands

💡 Why This Matters

🌍 Real World

Starting and stopping containers is a daily task for managing applications in Docker environments. It helps control app availability and resource use.

💼 Career

DevOps engineers and system administrators frequently start and stop containers to deploy updates, troubleshoot, or scale applications.

1

Create and run a container named mywebapp

Run a Docker container named mywebapp using the nginx image in detached mode.

Docker

# Run the container named mywebapp
# Your code here

Need a hint?

Use docker run -d --name mywebapp nginx to start the container in the background.

2

Check if the container mywebapp is running

Use the Docker command to list running containers and check for mywebapp.

Docker

docker run -d --name mywebapp nginx
# List running containers to check mywebapp
# Your code here

Need a hint?

Use docker ps --filter "name=mywebapp" to see if the container is running.

3

Stop the container named mywebapp

Use the Docker command to stop the container named mywebapp.

Docker

docker run -d --name mywebapp nginx
docker ps --filter "name=mywebapp"
# Stop the container mywebapp
# Your code here

Need a hint?

Use docker stop mywebapp to stop the container.

4

Verify the container mywebapp is stopped

List all containers including stopped ones and check that mywebapp is not running.

Docker

docker run -d --name mywebapp nginx
docker ps --filter "name=mywebapp"
docker stop mywebapp
# List all containers to verify mywebapp is stopped
# Your code here

Need a hint?

Use docker ps -a --filter "name=mywebapp" to see the container status including stopped ones.