How to pass arguments to Dockerfile

Question

I define the arguments in the Dockerfile, but I want to build all my Dockerfiles uniformly through docker compose, if the argument values are passed into the Dockerfile through docker-compose build

my Dockerfile

... ARG ENVIRONMENT_VARIABLE RUN dotnet build path/to/my/porject.csproj -c $ENVIRONMENT_VARIABLE ...

my docker-compose.yaml

... my.image: image: myimage:123 container_name: my.image build: context: ../../ dockerfile: path/to/Dockerfile args: ENVIRONMENT_VARIABLE: #{ENVIRONMENT_VARIABLE} ...

Just pass the arguments while starting the container. During docker run IMAGE ARGS — Macindows
– Macindows, Commented Jul 11, 2021 at 10:50
One of the things I can see people struggle with, is distinguishing between what happens at build time and what happens at run-time. The way you've set yours up, it's impossible from the docker-compose file to see if your argument is runtime or build time. Personally I think the clearest way of doing things is doing builds outside of docker compose and only using docker compose to spin up images that are already built. — Hans Kilian
– Hans Kilian, Commented Jul 11, 2021 at 10:54

michal.materowski · Accepted Answer · 2021-07-11 10:53:20Z

When you use docker compose you can pass arguments like this.

docker-compose build --build-arg ENVIRONMENT_VARIABLE=YOUR_VALUE

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