The Complete Practical Docker Guide - Fix Volumes Sync in the React Container

The video tutorial explains how to configure a React application using Docker Compose. It addresses issues with changes not reflecting in the running application and provides a solution by adding an environment variable, 'chowkidar_use_polling', to the Docker Compose YAML file. The tutorial demonstrates how to test changes in the application and ensure files are synchronized between the local machine and the Docker container. It concludes with a brief introduction to adding volume mapping for the API service.

What problem does adding an environment variable in the Docker Compose file solve?

• It reduces the size of the Docker image.

• It synchronizes changes between the host and the container.

• It increases the speed of the application.

• It decreases the memory usage of the application.

Which command is used to stop all running Docker containers?

• docker-compose down

• docker-compose halt

• docker shutdown

• docker stop all

What is the effect of setting the 'chowkidar_use_polling' environment variable to true?

• It decreases the CPU usage.

• It increases the network bandwidth.

• It enables real-time synchronization of files.

• It reduces the application load time.

Why might you need to add volume mapping for the API service?

• To increase the speed of API requests.

• To ensure changes in the local API folder are applied.

• To decrease the memory usage of the API service.

• To reduce the size of the API service.

What is the primary purpose of using Docker Compose in this context?

• To build Docker images.

• To monitor application performance.

• To manage multiple containers as a single service.

• To deploy applications to the cloud.