What are some examples of Docker Compose configurations?

What are some examples of Docker Compose configurations?

Docker Compose allows you to define and run multi-container Docker applications. Here are a few examples:

1. Basic Web App:

   version: '3'
   services:
     web:
       image: nginx
       ports:
         - "80:80"
   

2. Web App with Database:

   version: '3'
   services:
     web:
       image: nginx
       ports:
         - "80:80"
     db:
       image: postgres
       environment:
         POSTGRES_PASSWORD: example
   

3. Multi-Service App:

   version: '3'
   services:
     web:
       build: .
       ports:
         - "5000:5000"
     redis:
       image: "redis:alpine"
   

Would you like more detailed explanations on any of these?

Yes, can you explain the multi-service app example?

Sure! In the multi-service app example, we have two services defined:

1. web: This service is built from the current directory (indicated by build: .) and exposes port 5000 to the host.
2. redis: This service uses the official Redis image from Docker Hub, specifically the Alpine version for a lightweight setup.

This setup allows the web application to communicate with the Redis service for caching or message brokering. Would you like to know how to run this configuration?

Yes, how do I run this Docker Compose configuration?

To run the Docker Compose configuration, follow these steps:

1. Save your docker-compose.yml file in your project directory.
2. Open a terminal and navigate to that directory.
3. Run the command docker-compose up.

This command will start all the services defined in your docker-compose.yml file. You can add the -d flag to run them in detached mode. If you need to stop the services, use docker-compose down. Let me know if you need further assistance!