ruby-on-railsrubydockerdocker-machinecalabash-android

How to install Ruby on docker?

I am trying to install ruby on docker. I could install the 1.9 versions but it is not possible to install the latest version such as 2.2.0 and above. I am actually trying to set up calabash on docker. Have tried this. Whenever I try to install calabash-android in it getting the error 

ERROR:  Error installing calabash-android:
luffa requires Ruby version >= 2.0.
Solution

  • You could start view a dockerfile starting with:

    # 2016
FROM ruby:2.3.0

# 2020
# Import your ruby version
FROM ruby:2.7.1
# Install bundler gem
RUN gem install bundler
# Assign a work directory
WORKDIR /work

    That would use the docker image ruby, with ruby already installed.

    The 2020 version comes from "Ruby version management with docker" from Arjun Das, mentioned by ArMD in the comments.