Docker logging drivers - Mini Project: Build & Apply

Docker Logging Drivers Setup

📖 Scenario: You are managing a Docker container for a simple web application. You want to control how Docker handles the logs generated by this container.

🎯 Goal: Learn how to configure Docker logging drivers for a container and verify the logging setup.

📋 What You'll Learn

Create a Docker container running the nginx image with a specific name

Set a logging driver configuration variable

Run the container with the logging driver option

Check the container's logging driver configuration

💡 Why This Matters

🌍 Real World

In real projects, controlling Docker logging helps manage log storage, format, and integration with monitoring tools.

💼 Career

Understanding Docker logging drivers is important for DevOps roles to ensure efficient log management and troubleshooting.

1

Create a Docker container named mynginx using the nginx image

Run the command to create and start a Docker container named mynginx using the nginx image in detached mode.

Docker

# Run the docker command to create and start the container
# Your code here

Need a hint?

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

2

Set a variable LOG_DRIVER to json-file

Create a shell variable called LOG_DRIVER and set its value to json-file.

Docker

docker run -d --name mynginx nginx
# Set the LOG_DRIVER variable to 'json-file'
# Your code here

Need a hint?

Use LOG_DRIVER=json-file to set the variable.

3

Run a new container named mynginx2 using the nginx image with the logging driver set to $LOG_DRIVER

Run a Docker container named mynginx2 using the nginx image in detached mode, and set the logging driver to the value of the LOG_DRIVER variable using the --log-driver option.

Docker

docker run -d --name mynginx nginx
LOG_DRIVER=json-file
# Run the container mynginx2 with logging driver set to $LOG_DRIVER
# Your code here

Need a hint?

Use docker run -d --name mynginx2 --log-driver $LOG_DRIVER nginx.

4

Check the logging driver of the container mynginx2

Run the command to inspect the container mynginx2 and display only the logging driver used by this container.

Docker

docker run -d --name mynginx nginx
LOG_DRIVER=json-file
docker run -d --name mynginx2 --log-driver $LOG_DRIVER nginx
# Inspect and print the logging driver of mynginx2
# Your code here

Need a hint?

Use docker inspect --format='{{.HostConfig.LogConfig.Type}}' mynginx2 to see the logging driver.