Running a Ruby Script Without Ruby Installed
We’re about to perform some magic. Using Docker, we’re going to run a Ruby application without needing Ruby installed on our system.
Have a look at this:
| | $ docker run ruby:2.6 ruby -e "puts :hello" |
| | Unable to find image 'ruby:2.6' locally |
| | 2.6: Pulling from library/ruby |
| | cd8eada9c7bb: Pull complete |
| | c2677faec825: Pull complete |
| | fcce419a96b1: Pull complete |
| | 045b51e26e75: Pull complete |
| | 3b969ad6f147: Pull complete |
| | f2db762ad32e: Pull complete |
| | 708e57760f1b: Pull complete |
| | 06478b05a41b: Pull complete |
| | Digest: sha256:ad724f6982b4a7c2d2a8a4ecb67267a1961a518029244ed943e2d448d6fb7 |
| | 994 |
| | Status: Downloaded newer image for ruby:2.6 |
| | hello |
Whoa. What just happened there?
If you look ...
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