How use envs with docker compose/stack

[theapplegeek]

Hi,
I’m using a service of type compose with the Docker stack compose type.
Is it possible to define environment variables using the Environment section in the UI, instead of manually declaring them in the docker-compose file?

If so, how should it be configured?

I tried setting the variables only in the Environment UI section, but it doesn’t work.

[maks-oleksyuk]

If this is a deployment using compose, try adding this to your service:

env_file:
  - .env

Dokploy will create a .env file with the settings specified in the UI and transfer them to the container after the next rebuild. If you change any value, you will need to redeploy.

[naturedamends]

But won't this set the environment file with every service that uses it. So they all have access to the same variables. Sorry I can't find the service level settings that are mentioned in the docs. Which might expose variables to containers that don't need them.

Arr, my glasses.. sorry about spelling.

[maks-oleksyuk]

@naturedamends then add only the necessary variables to the container using the following syntax:

environment:
  POSTGRES_DB: ${DB_DATABASE}
  POSTGRES_USER: ${DB_USERNAME}
  POSTGRES_PASSWORD: ${DB_PASSWORD}

[naturedamends]

@naturedamends then add only the necessary variables to the container using the following syntax:

environment:

  POSTGRES_DB: ${DB_DATABASE}

  POSTGRES_USER: ${DB_USERNAME}

  POSTGRES_PASSWORD: ${DB_PASSWORD}

Thanks , i could not find a reference to the interpolation within a raw docker compose in the docs. Might of missed it mind.

[maks-oleksyuk]

https://docs.dokploy.com/docs/core/docker-compose#environment