Update datadog to use new ruby library

Datadog integration should now also work for staging and profiling is enabled for that only.

Gemfile

@@ -19,7 +19,7 @@ gem "countries", "~> 2.1", ">= 2.1.2"
 gem "country_select", "~> 3.1"
 gem "crawler_detect"
 gem "dalli", "~> 3.2", ">= 3.2.8"
-gem "ddtrace", require: "ddtrace/auto_instrument"
+gem 'datadog', require: 'datadog/auto_instrument'
 gem "departure", "~> 6.2"
 gem "diffy", "~> 3.2", ">= 3.2.1"
 gem "dotenv"

Gemfile.lock

@@ -217,15 +217,12 @@ GEM
       activerecord (>= 5.a)
       database_cleaner-core (~> 2.0.0)
     database_cleaner-core (2.0.1)
-    datadog-ci (0.6.0)
-      msgpack
-    date (3.3.4)
-    ddtrace (1.19.0)
-      datadog-ci (~> 0.6.0)
+    datadog (2.3.0)
       debase-ruby_core_source (= 3.3.1)
-      libdatadog (~> 5.0.0.1.0)
+      libdatadog (~> 11.0.0.1.0)
       libddwaf (~> 1.14.0.0.0)
       msgpack
+    date (3.3.4)
     debase-ruby_core_source (3.3.1)
     debug_inspector (1.1.0)
     departure (6.7.0)
@@ -418,9 +415,9 @@ GEM
       mime-types
       terrapin (>= 0.6.0, < 2.0)
     latex-decode (0.4.0)
-    libdatadog (5.0.0.1.0)
-    libdatadog (5.0.0.1.0-aarch64-linux)
-    libdatadog (5.0.0.1.0-x86_64-linux)
+    libdatadog (11.0.0.1.0)
+    libdatadog (11.0.0.1.0-aarch64-linux)
+    libdatadog (11.0.0.1.0-x86_64-linux)
     libddwaf (1.14.0.0.0-aarch64-linux)
       ffi (~> 1.0)
     libddwaf (1.14.0.0.0-arm64-darwin)
@@ -802,7 +799,7 @@ DEPENDENCIES
   dalli (~> 3.2, >= 3.2.8)
   database_cleaner
   database_cleaner-active_record (~> 2.1)
-  ddtrace
+  datadog
   departure (~> 6.2)
   diffy (~> 3.2, >= 3.2.1)
   dotenv
@@ -885,4 +882,4 @@ DEPENDENCIES
   webmock (~> 3.18, >= 3.18.1)
 
 BUNDLED WITH
-   2.5.6
+   2.5.6

config/initializers/datadog.rb

@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-require "ddtrace"
+require "datadog"
 
 Datadog.configure do |c|
   # Global
@@ -10,13 +10,18 @@
   c.env = Rails.env
 
   # Tracing settings
-  c.tracing.enabled = Rails.env.production?
-  c.tracing.analytics.enabled = true
+
+  # Enable tracing for production and staging envs
+  c.tracing.enabled = Rails.env.production? || Rails.env.stage?
+
   # We disable automatic log injection because it doesn't play nice with our formatter
   c.tracing.log_injection = false
 
   # Instrumentation
   c.tracing.instrument :rails
   c.tracing.instrument :elasticsearch
   c.tracing.instrument :shoryuken
+
+  # Profiling setup
+  c.profiling.enabled = Rails.env.stage?
 end