📜  docker compose bind mount current directory (1)

📅  最后修改于: 2023-12-03 15:14:45.348000             🧑  作者: Mango

Docker Compose Bind Mount Current Directory

Docker Compose is a tool for defining and running multi-container Docker applications. It uses a YAML file to configure the application's services, networks, and volumes. One of the most powerful features of Docker Compose is the ability to bind mount the current directory to a container.

What is Bind Mounting?

Bind Mounting is a way of mounting a directory or file from the host into a container, allowing the container to access the files on the host system. It is useful when you want to make changes to files on the host and have those changes immediately reflected in the container.

How to Bind Mount the Current Directory

To bind mount the current directory, you first need to create a Docker Compose file. In this example, we will create a simple Compose file with one service, using the python image:

version: '3'
services:
  app:
    image: python:3
    volumes:
      - .:/app
    working_dir: /app
    command: python app.py

In the volumes section, we specify the current directory (.) and mount it to the /app directory inside the container. We also set the working_dir to /app and specify the command to start the application (app.py).

Benefits of Bind Mounting the Current Directory

Bind Mounting the current directory brings several benefits:

  • Live Reload: Changes made to the files on the host are immediately reflected in the container, allowing for live reload of the application.

  • Development Environment: Bind Mounting allows developers to work with their local development environment without having to rebuild the container for every change.

  • Data Persistence: When the container is removed, the files on the host remain, allowing for easy cleanup and preservation of data.

Conclusion

Bind Mounting the current directory in Docker Compose is a powerful feature that allows developers to work with their local development environment and have changes immediately reflected in the container. It brings benefits such as live reload, development environment, and data persistence.