build&save images

build is to create an image from a Dockerfile,

compose is to manage many containers.

Build a Docker Image from a Dockerfile

1
docker build -t my_image .

Tag an Image

1
docker tag my_image myrepo/my_image:v1

Push an Image to Docker Hub

1
2
docker login
docker push myrepo/my_image:v1

save an image to local computer

1
docker save -o my-docker-app.tar my-docker-app

load it

1
docker load -i my-docker-app.tar

docker command line homepage

click here to come back to docker command line homepage.