February 2019
Intermediate to advanced
240 pages
5h 25m
English
Content preview from Docker for Rails Developers
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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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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.