Introduce ruby workflow and rubocop

- add Rakefile with spec:unit and :rubocop tasks
- add 'ostruct' require to cpi.json.erb_spec.rb

.github/workflows/ruby.yml

@@ -0,0 +1,17 @@
+name: Run Specs
+on: [ push, pull_request ]
+
+jobs:
+  unit_specs:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+      with: { lfs: true }
+    - uses: ruby/setup-ruby@v1
+      with: { working-directory: src/bosh_openstack_cpi/ }
+    - name: lint-and-test
+      run: |
+        bundle install
+        bundle exec rake rubocop
+        bundle exec rake spec:unit
+      working-directory: src/bosh_openstack_cpi/

src/bosh_aws_cpi/Gemfile

@@ -14,5 +14,6 @@ group :development, :test do
   gem 'pry-byebug'
   gem 'rspec'
   gem 'rake'
+  gem 'rubocop'
   gem 'webmock'
 end

src/bosh_aws_cpi/Gemfile.lock

@@ -3,6 +3,7 @@ GEM
   specs:
     addressable (2.8.7)
       public_suffix (>= 2.0.2, < 7.0)
+    ast (2.4.2)
     aws-eventstream (1.3.0)
     aws-partitions (1.981.0)
     aws-sdk-autoscaling (1.121.0)
@@ -45,6 +46,8 @@ GEM
     hashdiff (1.1.1)
     httpclient (2.8.3)
     jmespath (1.6.2)
+    json (2.7.2)
+    language_server-protocol (3.17.0.3)
     little-plugger (1.1.4)
     logging (2.2.2)
       little-plugger (~> 1.1)
@@ -53,14 +56,21 @@ GEM
     method_source (1.1.0)
     multi_json (1.15.0)
     openssl (3.2.0)
+    parallel (1.26.3)
+    parser (3.3.5.0)
+      ast (~> 2.4.1)
+      racc
     pry (0.14.2)
       coderay (~> 1.1)
       method_source (~> 1.0)
     pry-byebug (3.10.1)
       byebug (~> 11.0)
       pry (>= 0.13, < 0.15)
     public_suffix (6.0.1)
+    racc (1.8.1)
+    rainbow (3.1.1)
     rake (13.2.1)
+    regexp_parser (2.9.2)
     rexml (3.3.8)
     rspec (3.13.0)
       rspec-core (~> 3.13.0)
@@ -75,7 +85,21 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
     rspec-support (3.13.1)
+    rubocop (1.66.1)
+      json (~> 2.3)
+      language_server-protocol (>= 3.17.0)
+      parallel (~> 1.10)
+      parser (>= 3.3.0.2)
+      rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 2.4, < 3.0)
+      rubocop-ast (>= 1.32.2, < 2.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 2.4.0, < 3.0)
+    rubocop-ast (1.32.3)
+      parser (>= 3.3.1.0)
+    ruby-progressbar (1.13.0)
     semi_semantic (1.2.0)
+    unicode-display_width (2.6.0)
     webmock (3.24.0)
       addressable (>= 2.8.0)
       crack (>= 0.3.2)
@@ -96,6 +120,7 @@ DEPENDENCIES
   rake
   rexml
   rspec
+  rubocop
   webmock
 
 BUNDLED WITH

src/bosh_aws_cpi/Rakefile

@@ -0,0 +1,12 @@
+require 'rspec/core/rake_task'
+require 'rubocop/rake_task'
+
+namespace :spec do
+  RSpec::Core::RakeTask.new(:unit) do |t|
+    t.pattern = 'spec/unit/**{,/*/**}/*_spec.rb'
+  end
+end
+
+RuboCop::RakeTask.new do |t|
+  t.options = ['--fail-level=E'] # only fail on `Error`
+end

src/bosh_aws_cpi/spec/unit/bosh_release/jobs/cpi/templates/cpi.json.erb_spec.rb

@@ -1,6 +1,7 @@
 require 'spec_helper'
 require 'json'
 require 'yaml'
+require 'ostruct'
 
 describe 'cpi.json.erb' do
   let(:cpi_specification_file) { File.absolute_path(File.join(jobs_root, 'aws_cpi/spec')) }