Introduction to Redis and Docker Compose

This page provides a straightforward Docker Compose configuration to set up a Redis instance. Docker Compose is a powerful tool for defining and running multi-container Docker applications. By using a docker-compose.yml file, you can easily manage the lifecycle of your Redis service, making it ideal for development, testing, and even simple production deployments.

Redis Docker Compose Configuration

Below is a sample docker-compose.yml file that defines a single service for Redis. This configuration specifies the Redis image to use, sets a container name, configures environment variables, defines network settings, and maps ports for external access. It also includes basic logging configurations to manage disk space.

version: "3.7"

services:
  redis-server:
    image: redis:7.0
    container_name: redis-server
    environment:
      - DOCKERHUB_DOCS=https://hub.docker.com/_/redis
    networks:
      - app
    ports:
      - 6379:6379
    logging:
      driver: "json-file"
      options:
        max-size: "1m"

networks:
  app:
    name: app

Explanation of the Docker Compose File

• version: "3.7": Specifies the Docker Compose file format version.
• services:: Defines the services (containers) that make up your application.
• redis-server:: The name of the Redis service.
• image: redis:7.0: Uses the official Redis image version 7.0 from Docker Hub.
• container_name: redis-server: Assigns a specific name to the container for easier identification.
• environment:: Sets environment variables within the container. DOCKERHUB_DOCS is an example, often used for linking to documentation.
• networks:: Defines the network the service will connect to. Here, it's a custom network named app.
• ports:: Maps ports from the host machine to the container. 6379:6379 exposes Redis on the default port.
• logging:: Configures how logs are handled. This example uses a JSON file driver with a maximum size of 1MB per file.
• networks: app: name: app: Defines the custom network named app.

How to Use This Docker Compose File

To use this configuration:

1. Save the content above into a file named docker-compose.yml.
2. Ensure you have Docker and Docker Compose installed on your system.
3. Open your terminal, navigate to the directory where you saved the file, and run the command: docker-compose up -d.
4. To stop the Redis container, run: docker-compose down.

This setup provides a quick and efficient way to get a Redis server running for your projects.

Further Resources

• Official Redis Documentation
• Docker Compose Documentation
• Redis Docker Hub Page