Question

How do I specify which Dockerfile is to be used for each app's components?

Posted on September 18, 2023
Building on DigitalOcean Docker
Asked by 58c2ad93b2694e57ac2353a45373b8

I have a monorepo, which has 2 directories for each project. Now, they have their own Dockerfiles (so bot/Dockerfile and api/Dockerfile), and I would like DigitalOcean to build using the relevant dockerfile, so if I have 1 app called tags-api, it will use api/Dockerfile to build, and vice versa for bot.

Now my question is, how do I do so? Since currently it just checks for ./Dockerfile, which, in this case doesn’t exist.

Alternatively, could it possibly use my docker-compose file? I have a ./docker-compose.yaml file but I couldn’t find an option where I could use compose instead of Docker.

Submit an answer

This textbox defaults to using Markdown to format your answer.

You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

Bobby Iliev

Site Moderator

• September 18, 2023

Accepted Answer

Hi there,

You should be able to use the dockerfile_path directive in your App Spec definition. The path to the Dockerfile is relative to the root of your repo. If set, it will be used to build this component. Here is an example:

name: sample-dockerfile
services:
- name: web
  git:
    repo_clone_url: https://github.com/digitalocean/sample-dockerfile.git
    branch: main
  dockerfile_path: Dockerfile