Make apps uniform

grape.rb

@@ -1,3 +1,5 @@
+#!/usr/bin/env ruby
+
 begin
   require "bundler/inline"
 rescue LoadError => e
@@ -21,15 +23,17 @@ end.tap do |m|
 end.first
 server = ARGV[1] || 'thin'
 
+gems = match.fetch('gem', {})
 gemfile(true) do
   source "https://rubygems.org"
 
   ruby match['ruby']
 
   gem 'grape', "~> #{version}.0"
-  gem server
+  gem server unless gems.key?(server)
+  gem 'ddtrace'
 
-  match.fetch('gem', []).each do |name, requirement|
+  gems.each do |name, requirement|
     gem name, requirement
   end
 end
@@ -59,6 +63,9 @@ class API < Grape::API
 end
 
 App = Rack::Builder.new do
+  use Datadog::Tracing::Contrib::Rack::TraceMiddleware
+  use Datadog::AppSec::Contrib::Rack::RequestMiddleware
+
   # precompile routes
   API.compile!
 
@@ -69,5 +76,22 @@ App = Rack::Builder.new do
   # run Rack::Cascade.new [Web, API]
 end
 
+require 'ddtrace'
+
+Datadog.configure do |c|
+  c.diagnostics.debug = true
+
+  c.telemetry.enabled = true
+
+  c.remote.enabled = true
+
+  c.tracing.enabled = true
+  c.tracing.instrument :rack
+  c.tracing.instrument :grape
+
+  c.appsec.enabled = true
+  c.appsec.instrument :rack
+end
+
 Rack::Server.new(app: App, Host: '0.0.0.0', Port: 3000).start