CLI

docker images

  • show all images

docker build

  • purpose is to build an image from a Dockerfile. The command will find the Dockerfile and will build an image based on it.

Inject env variables into the Dockerfile build process

--build-arg NPM_TOKEN=$NPM_TOKEN

Build image

  • from your application folder: docker build -t <APP NAME> .
    • this causes each line of Dockerfile to be executed, building up the image as it goes
  • Images are static once they are created