How to run built Docker image made by docker-compose?

Question

Used docker-compose to dockerized a web application. It includes app/db.

I separated the images from app/db and put them into docker-compose.yml file.

So run $ docker-compose build can build all the images. And run $ docker-compose up can start all the container services.

But, I want to make a hole image like $ docker build -t app . , how to run it?

I tried $ docker run -it app but not work as $ docker-compose up .

Answer 1

Docker compose is an orchestrator for MULTI container deployment. So won't be useful for creating a single image.

I would recommend keep the containers separate for production clusters but you can have multiple services with in a single container. Try supervisor or some other process manager, docker official documentation has all the details.

Let me know if it doesn't explain I will add an example here.