Interactive shell using Docker Compose

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Is there any way to start an interactive shell in a container using Docker Compose only? I’ve tried something like this, in my docker-compose.yml:

myapp:
  image: alpine:latest
  entrypoint: /bin/sh

When I start this container using docker-compose up it’s exited immediately. Are there any flags I can add to the entrypoint command, or as an additional option to myapp, to start an interactive shell?

I know there are native docker command options to achieve this, just curious if it’s possible using only Docker Compose, too.

12 Answers
12

You need to include the following lines in your docker-compose.yml:

version: "3"
services:
  app:
    image: app:1.2.3
    stdin_open: true # docker run -i
    tty: true        # docker run -t

The first corresponds to -i in docker run and the second to -t.

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