Docker Login docker login [OPTIONS] [SERVER] 1 2 docker login docker login registry.gitlab.com Docker pull docker pull [OPTIONS] NAME[:TAG|@DIGEST] 1 2 3 4 docker pull gitlab/gitlab-ce:latest docker pull php:7.2 docker pull mysql:5.6 docker pull registry.gitlab.com/scottchayaa/laravel-ci:latest Docker build docker build [OPTIONS] PATH | URL | - 1 docker build -t example:latest . How to use –build-arg in Dockerfile 1 2 3 docker build \ --build-arg TMP_DIR=tmp_example1 \ -t example:latest . Dockerfile