How to refresh the build image using docker-compose
To refresh the build image, you need to add
--build to the docker-compose command.
What does the build flag do
--build flag tells docker to compile any Dockerfiles before starting running the compose
docker-compose up --build
Why you should use the flag
Not using the flag aka not refreshing the build image and then making changes is quite a common trap to fall into. This can when starting out with docker-compose!