T-70: Dockerfile for Ruby 3.0 (#67)

marian13 · Feb 7, 2021 · 2751795 · 2751795
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diff --git a/README.md b/README.md
@@ -219,7 +219,7 @@ Basic Temperature follows the [Semantic Versioning](https://semver.org/) standar
 
 Bug reports and pull requests are welcome on GitHub at https://github.com/marian13/basic_temperature.
 
-## Development
+## Development on the local machine
 
 * Check specs: `bundle exec rspec`.
 
@@ -235,7 +235,7 @@ Bug reports and pull requests are welcome on GitHub at https://github.com/marian
 
 * Interactive shell inside container: `docker run -it basic_temperature_2.3:latest bash`.
 
-* 2.3 can be replaced by 2.4, 2.5, 2.6 and 2.7.
+* 2.3 can be replaced by 2.4, 2.5, 2.6, 2.7 and 3.0.
 
 ## License
 

diff --git a/docker/Dockerfile-3.0 b/docker/Dockerfile-3.0
@@ -0,0 +1,7 @@
+FROM ruby:3.0
+
+RUN mkdir -p /gem
+WORKDIR /gem
+
+COPY . /gem
+RUN bundle install