update ruby sinatra samples

samples/server/petstore/ruby-sinatra/.openapi-generator/FILES

@@ -0,0 +1,10 @@
+Dockerfile
+Gemfile
+README.md
+api/pet_api.rb
+api/store_api.rb
+api/user_api.rb
+config.ru
+lib/openapiing.rb
+my_app.rb
+openapi.yaml

samples/server/petstore/ruby-sinatra/.openapi-generator/VERSION

@@ -1 +1 @@
-4.2.1-SNAPSHOT
+5.1.1-SNAPSHOT

samples/server/petstore/ruby-sinatra/Dockerfile

@@ -0,0 +1,32 @@
+## Build libraries
+FROM ruby:3.0-alpine as rubydev
+
+## for thin or falcon
+#RUN apk --no-cache add make g++ libc-dev
+## for puma
+#RUN apk --no-cache add make gcc libc-dev
+
+ADD . /app
+WORKDIR /app
+
+RUN bundle config set path lib
+RUN bundle install
+
+## Build Runtime image
+FROM ruby:3.0-alpine
+
+RUN apk --no-cache add tzdata ## ca-certificates
+
+COPY --from=rubydev /app /app
+WORKDIR /app
+
+ENV SINATRA_HOST 0.0.0.0
+ENV SINATRA_PORT 8080
+EXPOSE $SINATRA_PORT
+
+RUN addgroup sinatra
+RUN adduser -S -G sinatra sinatra
+USER sinatra
+RUN bundle config set path lib
+
+CMD bundle exec rackup --host $SINATRA_HOST -p $SINATRA_PORT

samples/server/petstore/ruby-sinatra/Gemfile

@@ -1,4 +1,5 @@
 source 'https://rubygems.org'
 
+gem "webrick"
 gem "sinatra"
-gem "sinatra-cross_origin"
+gem "sinatra-cross_origin"

samples/server/petstore/ruby-sinatra/README.md

@@ -1,29 +1,65 @@
-# Swagger for Sinatra
+# OpenAPI for Sinatra
 
 ## Overview
 This is a project to provide Swagger support inside the [Sinatra](http://www.sinatrarb.com/) framework.  You can find
 out more about both the spec and the framework at http://swagger.io.  For more information about 
 Wordnik's APIs, please visit http://developer.wordnik.com.
 
 ## Prerequisites
-You need to install ruby 1.9.3 and the following gems:
+As of ruby 3.0.0, the webrick web server library was removed.
+You need to install a rack-supported web server, such as webrick and thin.
+
+The default Gemfile is as follows. 
+Update the name of the web server as your prefer.
 
 ```
-sinatra
-sinatra-cross_origin
+source 'https://rubygems.org'
+
+gem "webrick"
+gem "sinatra"
+gem "sinatra-cross_origin"
 ```
 
 ## Getting started
-This sample was generated with the [OpenAPI Generator](https://github.com/openapitools/openapi-generator) project.
+To generate a ruby-sinatra server for petstore.yaml, please run the following:
+
+```
+openapi-generator-cli generate \
+  -i https://raw.githubusercontent.com/openapitools/openapi-generator/master/modules/openapi-generator/src/test/resources/3_0/petstore.yaml \
+  -g ruby-sinatra -o code
+```
+
+To run the generated server, please run the following:
+
+```
+cd code/
+bundle config set path lib
+bundle install 
+bundle exec rackup -p 8080
+```
+
+You can access the application by the following URL:
+
+```
+http://localhost:8080/v2/store/inventory
+```
+
+## Docker
+If you want to use a web server other than webrick, you need to edit the generated Dockerfile to prepare the compiler and the make command. Please check the comment of the Dockerfile.
+
+To run the code on docker, you can use the Dockerfile as follows:
+
+### Build the docker image
+The "container_name" can be changed for your preferences.
 
 ```
-rackup -p 4567 config.ru
+docker build . --tag "container_name"
 ```
 
-In your [swagger ui](https://github.com/swagger-api/swagger-ui), put in the following URL:
+### Run the docker image
 
 ```
-http://localhost:4567/resources.json
+docker run -it --rm -p 8080:8080 "container_name"
 ```
 
 Voila!

samples/server/petstore/ruby-sinatra/api/pet_api.rb

@@ -5,7 +5,7 @@
   "resourcePath" => "/Pet",
   "summary" => "Add a new pet to the store",
   "nickname" => "add_pet", 
-  "responseClass" => "void",
+  "responseClass" => "Pet",
   "endpoint" => "/pet", 
   "notes" => "",
   "parameters" => [
@@ -123,7 +123,7 @@
   "resourcePath" => "/Pet",
   "summary" => "Update an existing pet",
   "nickname" => "update_pet", 
-  "responseClass" => "void",
+  "responseClass" => "Pet",
   "endpoint" => "/pet", 
   "notes" => "",
   "parameters" => [