❯ docker build -t registry.gitlab.com/milohax/hax/ruby:2.7-alpine .
[+] Building 0.1s (6/6) FINISHED                                                                                                        
 => [internal] load build definition from Dockerfile                                                                               0.0s
 => => transferring dockerfile: 36B                                                                                                0.0s
 => [internal] load .dockerignore                                                                                                  0.0s
 => => transferring context: 2B                                                                                                    0.0s
 => [internal] load metadata for docker.io/library/ruby:2.7-alpine                                                                 0.0s
 => [1/2] FROM docker.io/library/ruby:2.7-alpine                                                                                   0.0s
 => CACHED [2/2] RUN apk add git                                                                                                   0.0s
 => exporting to image                                                                                                             0.0s
 => => exporting layers                                                                                                            0.0s
 => => writing image sha256:562160938386a7ee12fb24f90c53aaac3025f2a27f1b718c454e08fe15db8fb2                                       0.0s
 => => naming to registry.gitlab.com/milohax/hax/ruby:2.7-alpine                                                                   0.0s

❯ docker push registry.gitlab.com/milohax/hax/ruby:2.7-alpine
The push refers to repository [registry.gitlab.com/milohax/hax/ruby]
0daa3d3aa70e: Pushed 
333d258d194f: Pushed 
1fb9e065d0ef: Pushed 
1b978b0d0693: Pushed 
b996702fd9a0: Pushed 
8d3ac3489996: Pushed 
2.7-alpine: digest: sha256:14a71c696a57bc755a440186fa1debd87fd2effb48ea62a48927acea08fb5859 size: 1576

sample build and push: ```sh ❯ docker build -t registry.gitlab.com/milohax/hax/ruby:2.7-alpine . [+] Building 0.1s (6/6) FINISHED => [internal] load build definition from Dockerfile 0.0s => => transferring dockerfile: 36B 0.0s => [internal] load .dockerignore 0.0s => => transferring context: 2B 0.0s => [internal] load metadata for docker.io/library/ruby:2.7-alpine 0.0s => [1/2] FROM docker.io/library/ruby:2.7-alpine 0.0s => CACHED [2/2] RUN apk add git 0.0s => exporting to image 0.0s => => exporting layers 0.0s => => writing image sha256:562160938386a7ee12fb24f90c53aaac3025f2a27f1b718c454e08fe15db8fb2 0.0s => => naming to registry.gitlab.com/milohax/hax/ruby:2.7-alpine 0.0s ``` ``` ❯ docker push registry.gitlab.com/milohax/hax/ruby:2.7-alpine The push refers to repository [registry.gitlab.com/milohax/hax/ruby] 0daa3d3aa70e: Pushed 333d258d194f: Pushed 1fb9e065d0ef: Pushed 1b978b0d0693: Pushed b996702fd9a0: Pushed 8d3ac3489996: Pushed 2.7-alpine: digest: sha256:14a71c696a57bc755a440186fa1debd87fd2effb48ea62a48927acea08fb5859 size: 1576 ```