Add load testing script for artillery.io

Also add rake tasks that makes use of existing performance data
genertion task.

qa/.gitignore

 tmp/
 .ruby-version
-urls.txt
+urls.yml

qa/Rakefile

@@ -16,3 +16,25 @@ desc "Generate Performance Testdata"
 task :generate_perf_testdata do
   QA::Tools::GeneratePerfTestdata.new.run
 end
+
+desc "Run artillery load tests"
+task :run_artillery_load_tests do
+  unless ENV['HOST_URL'] && ENV['LARGE_ISSUE_URL'] && ENV['LARGE_MR_URL']
+    urls_file = ENV['URLS_FILE_PATH'] || 'urls.yml'
+
+    unless File.exist?(urls_file)
+      raise "\n#{urls_file} file is missing. Please provide correct URLS_FILE_PATH or all of HOST_URL, LARGE_ISSUE_URL and LARGE_MR_URL\n\n"
+    end
+
+    urls = YAML.safe_load(File.read(urls_file))
+    ENV['HOST_URL'] = urls[:host]
+    ENV['LARGE_ISSUE_URL'] = urls[:large_issue]
+    ENV['LARGE_MR_URL'] = urls[:large_mr]
+  end
+
+  sh('artillery run load/artillery.yml -o report.json')
+  sh('artillery report report.json -o report.html && rm report.json')
+end
+
+desc "Generate data and run load tests"
+task generate_data_and_run_load_test: [:generate_perf_testdata, :run_artillery_load_tests]

qa/load/artillery.yml

+config:
+  target: "{{ $processEnvironment.HOST_URL }}"
+  phases:
+    - duration: 60
+      arrivalRate: 1
+      name: "Warm up"
+    - duration: 120
+      arrivalRate: 1
+      rampTo: 50
+      name: "Gradual ramp up"
+    - duration: 60
+      arrivalRate: 50
+      name: "Sustained max load"
+scenarios:
+  - name: "Visit large issue url"
+    flow:
+      - get:
+          url: "{{ $processEnvironment.LARGE_ISSUE_URL }}"
+  - name: "Visit large MR url"
+    flow:
+      - get:
+          url: "{{ $processEnvironment.LARGE_MR_URL }}"

qa/qa/tools/generate_perf_testdata.rb

@@ -2,6 +2,7 @@
 
 require 'securerandom'
 require 'faker'
+require 'yaml'
 require_relative '../../qa'
 # This script generates testdata for Performance Testing.
 # Required environment variables: PERSONAL_ACCESS_TOKEN and GITLAB_ADDRESS
@@ -20,7 +21,8 @@ module QA
         @api_client = Runtime::API::Client.new(ENV['GITLAB_ADDRESS'], personal_access_token: ENV['PERSONAL_ACCESS_TOKEN'])
         @group_name = "gitlab-qa-perf-sandbox-#{SecureRandom.hex(8)}"
         @project_name = "my-test-project-#{SecureRandom.hex(8)}"
-        @urls = {}
+        @visibility = "public"
+        @urls = { host: ENV['GITLAB_ADDRESS'] }
       end
 
       def run
@@ -39,26 +41,26 @@ module QA
         threads_arr = []
 
         methods_arr.each do |m|
-          threads_arr << Thread.new {m.call}
+          threads_arr << Thread.new { m.call }
         end
 
         threads_arr.each(&:join)
         STDOUT.puts "\nURLs: #{@urls}"
-        File.open("urls.txt", "w") { |file| file.puts @urls.to_s}
+        File.open("urls.yml", "w") { |file| file.puts @urls.to_yaml }
         STDOUT.puts "\nDone"
       end
 
       private
 
       def create_group
-        group_search_response = post Runtime::API::Request.new(@api_client, "/groups").url, "name=#{@group_name}&path=#{@group_name}"
+        group_search_response = post Runtime::API::Request.new(@api_client, "/groups").url, "name=#{@group_name}&path=#{@group_name}&visibility=#{@visibility}"
         group = JSON.parse(group_search_response.body)
         @urls[:group_page] = group["web_url"]
         group["id"]
       end
 
       def create_project(group_id)
-        create_project_response = post Runtime::API::Request.new(@api_client, "/projects").url, "name=#{@project_name}&namespace_id=#{group_id}"
+        create_project_response = post Runtime::API::Request.new(@api_client, "/projects").url, "name=#{@project_name}&namespace_id=#{group_id}&visibility=#{@visibility}"
         @urls[:project_page] = JSON.parse(create_project_response.body)["web_url"]
       end