Removing containers in Docker - Mini Project: Build & Apply

Removing Containers with Docker

📖 Scenario: You are managing Docker containers on your local machine. Over time, you have created several containers, but now you want to clean up by removing some of them.

🎯 Goal: Learn how to list Docker containers, select specific containers by their IDs, and remove them safely using Docker commands.

📋 What You'll Learn

List all Docker containers including stopped ones

Identify container IDs to remove

Remove containers by their container IDs

💡 Why This Matters

🌍 Real World

Cleaning up unused Docker containers helps keep your system tidy and frees up disk space.

💼 Career

Knowing how to manage and remove Docker containers is essential for developers and DevOps engineers to maintain healthy environments.

1

List all Docker containers

Run the command docker ps -a to list all Docker containers including those that are stopped.

Docker

# Run the command to list all containers
# Your code here

Need a hint?

Use docker ps -a to see all containers, not just the running ones.

2

Identify container IDs to remove

Assign the container ID abc123def456 to a variable called container_id in your shell or script.

Docker

docker ps -a
# Assign the container ID 'abc123def456' to variable container_id
# Your code here

Need a hint?

Use container_id=abc123def456 to store the container ID.

3

Remove the container by ID

Use the command docker rm $container_id to remove the container stored in the variable container_id.

Docker

docker ps -a
container_id=abc123def456
# Remove the container using docker rm and the container_id variable
# Your code here

Need a hint?

Use docker rm $container_id to remove the container by its ID.

4

Verify container removal

Run docker ps -a again to verify that the container with ID abc123def456 is no longer listed.

Docker

docker ps -a
container_id=abc123def456
docker rm $container_id
# Verify the container is removed by listing all containers
# Your code here

Need a hint?

Run docker ps -a to check the container list after removal.