Serving an NX monorepo of angular apps in Docker-compose
TL;DR
ARG's are build time variables. You can persist the ARG's value in the images environment during the build or override the services[*].command in the docker-compose.yaml.
Persist in the environment
You can persist an environment variable set from a --build-arg in the images environment during the build:
FROM alpine:3ARG APPENV APP=${APP}CMD echo $APPBuild the docker image: docker build --rm --build-arg APP=123 -t so:66935830 .
Run the docker container: docker run --rm -it so:66935830
Override the command
You can override the command for each service in the docker-compose.yaml:
version: '3.7'services: a: image: 'a' build: context: '.' command: ['echo', '123'] b: image: 'b' build: context: '.' command: ['echo', '456']