docker build [docker in a nutshell]

docker-build.sh

$ docker build -t my-awesome-app .
[+] Building 0.2s (8/8) FINISHED                                                                                                                                                               
 => [internal] load build definition from Dockerfile
 => => transferring dockerfile: 37B
 => [internal] load .dockerignore
 => => transferring context: 2B
 => [internal] load metadata for docker.io/library/ubuntu:latest
 => [internal] load build context
 => => transferring context: 69B
 => [1/3] FROM docker.io/library/ubuntu
 => [2/3] COPY /src /my-app
 => [3/3] WORKDIR /my-app
 => exporting to image
 => => exporting layers
 => => writing image sha256:0bca1ba2ac5b5574c9bba301e02ee94337806aef21b763253c101f40e1d0ec5f
 => => naming to docker.io/library/my-awesome-app