How to build an image with a custom name?

Question

When I build an image using docker build:

docker build .

I get an image with a random name.

How to create a docker image with a custom name?

I already know how to set the name in the Dockerfile, but I'm not sure how to use it in the build command.

Answer 1

You can use the -t flag, as shown in the documentation (or run docker build --help to learn about the options you have).

You should do:

docker build -t my-image .

Now the image is created with the name my-image:

$ docker images
REPOSITORY                  TAG                 IMAGE ID            CREATED             SIZE
my-image                    latest              43070bef9dfa        2 minutes ago       464MB