Add telegraf to CodeOcean

Gemfile

@@ -37,6 +37,7 @@ gem 'proforma', git: 'https://github.com/openHPI/proforma.git', tag: 'v0.5'
 gem 'whenever', require: false
 gem 'rails-timeago'
 gem 'rails_admin'
+gem 'telegraf'
 
 # Error Tracing
 gem 'concurrent-ruby'

Gemfile.lock

@@ -117,7 +117,7 @@ GEM
     database_cleaner (1.8.5)
     debug_inspector (1.0.0)
     diff-lcs (1.4.4)
-    docile (1.3.4)
+    docile (1.3.5)
     docker-api (2.0.0)
       excon (>= 0.47.0)
       multi_json
@@ -136,7 +136,7 @@ GEM
       faraday-net_http (~> 1.0)
       multipart-post (>= 1.2, < 3)
       ruby2_keywords
-    faraday-net_http (1.0.0)
+    faraday-net_http (1.0.1)
     faye-websocket (0.11.0)
       eventmachine (>= 0.12.0)
       websocket-driver (>= 0.5.1)
@@ -163,6 +163,7 @@ GEM
     ims-lti (1.2.4)
       builder (>= 1.0, < 4.0)
       oauth (>= 0.4.5, < 0.6)
+    influxdb (0.8.0)
     jbuilder (2.10.1)
       activesupport (>= 5.0.0)
     jquery-rails (4.4.0)
@@ -187,10 +188,10 @@ GEM
     kaminari-core (1.2.1)
     kramdown (2.3.0)
       rexml
-    listen (3.4.0)
+    listen (3.4.1)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
-    loofah (2.8.0)
+    loofah (2.9.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -417,6 +418,8 @@ GEM
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
     structured_warnings (0.4.0)
+    telegraf (0.8.0)
+      influxdb
     temple (0.8.2)
     thor (1.0.1)
     thread_safe (0.3.6)
@@ -437,7 +440,7 @@ GEM
       activemodel (>= 5.0)
       bindex (>= 0.4.0)
       railties (>= 5.0)
-    webmock (3.11.0)
+    webmock (3.11.1)
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
       hashdiff (>= 0.4.0, < 2.0.0)
@@ -518,6 +521,7 @@ DEPENDENCIES
   slim-rails
   sorcery
   spring
+  telegraf
   tubesock!
   turbolinks
   uglifier

config/application.rb

@@ -6,6 +6,8 @@ require 'rails/all'
 # you've limited to :test, :development, or :production.
 Bundler.require(*Rails.groups)
 
+require 'telegraf/rails'
+
 module CodeOcean
   class Application < Rails::Application
     # Initialize configuration defaults
@@ -30,5 +32,7 @@ module CodeOcean
     config.assets.precompile += %w( markdown-buttons.png )
 
     config.action_cable.mount_path = '/cable'
+
+    config.telegraf.rack.tags = {application: 'codeocean'}
   end
 end