web:
environment:
- DEBUG=1
stefanchrobot
CAIOHOBORGHI
This one was tricky… Found the answer in docker-compose build environment variable - Stack Overflow
As the mix run is running on the Dockerfile, the environment section of docker-compose won’t work, so I had to use the args section on the docker-compose
version: "3.2"
services:
checker:
build:
context: .
args:
- MY_VAR=hello
restart: on-failure
And also declare the arg in the dockerfile
FROM elixir:1.11-slim
RUN mkdir /app
COPY . /app
WORKDIR /app
ARG MY_VAR
ENV MY_VAR $MY_VAR
# Install hex
RUN mix local.hex --force
#Install rebar
RUN mix local.rebar --force
#Get dependencies
RUN mix deps.get
RUN mix run
Thank you all for your help
0
NobbZ
This runs mix during build time of the container. At that point in time docker-compose has not yet set the environment.
You want to use CMD or ENTRYPOINT depending on your exact needs.
2
CAIOHOBORGHI
Yeah, this is the best answer, with it I don’t even need to use the args on docker-compose.
Thank you!
0