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