add New Relic for app performance reporting

Gemfile

@@ -60,6 +60,7 @@ gem 'font-awesome-rails'
 gem 'attr_extras'
 
 gem 'capistrano', '~> 2.0'
+gem 'newrelic_rpm'
 
 group :development do
   gem 'spring-commands-rspec'

Gemfile.lock

@@ -232,6 +232,7 @@ GEM
     net-ssh (3.2.0)
     net-ssh-gateway (1.2.0)
       net-ssh (>= 2.6.5)
+    newrelic_rpm (3.17.0.325)
     nokogiri (1.6.8)
       mini_portile2 (~> 2.1.0)
       pkg-config (~> 1.1.7)
@@ -482,6 +483,7 @@ DEPENDENCIES
   jquery-ui-rails
   json-ld (~> 1.99)
   mysql2 (~> 0.3.13)
+  newrelic_rpm
   passenger
   poltergeist (~> 1.9.0)
   rails (= 4.1.7)
@@ -507,4 +509,4 @@ DEPENDENCIES
   webmock
 
 BUNDLED WITH
-   1.12.5
+   1.13.5

config/newrelic.yml

@@ -0,0 +1,110 @@
+#
+# This file configures the New Relic Agent.  New Relic monitors Ruby, Java,
+# .NET, PHP, Python and Node applications with deep visibility and low
+# overhead.  For more information, visit www.newrelic.com.
+#
+# Generated October 19, 2016
+#
+# This configuration file is custom generated for OSU Libraries & Press
+#
+# For full documentation of agent configuration options, please refer to
+# https://docs.newrelic.com/docs/agents/ruby-agent/installation-configuration/ruby-agent-configuration
+
+common: &default_settings
+  # Required license key associated with your New Relic account.
+  #
+  # Local and server should have the ENV variable set to enable NewRelic
+  #license_key: <%= ENV['NEW_RELIC_LICENSE_KEY'] %>
+
+  # Your application name. Renaming here affects where data displays in New
+  # Relic.  For more details, see https://docs.newrelic.com/docs/apm/new-relic-apm/maintenance/renaming-applications
+  app_name: Controlled Vocabulary Manager
+
+  # To disable the agent regardless of other settings, uncomment the following:
+  # agent_enabled: false
+
+  # Logging level for log/newrelic_agent.log
+  log_level: info
+
+  # Transaction tracer captures deep information about slow
+  # transactions and sends this to the New Relic service once a
+  # minute. Included in the transaction is the exact call sequence of
+  # the transactions including any SQL statements issued.
+  transaction_tracer:
+
+    # Transaction tracer is enabled by default. Set this to false to
+    # turn it off. This feature is only available at the Professional
+    # and above product levels.
+    enabled: true
+
+    # Threshold in seconds for when to collect a transaction
+    # trace. When the response time of a controller action exceeds
+    # this threshold, a transaction trace will be recorded and sent to
+    # New Relic. Valid values are any float value, or (default) "apdex_f",
+    # which will use the threshold for an dissatisfying Apdex
+    # controller action - four times the Apdex T value.
+    transaction_threshold: apdex_f
+
+    # When transaction tracer is on, SQL statements can optionally be
+    # recorded. The recorder has three modes, "off" which sends no
+    # SQL, "raw" which sends the SQL statement in its original form,
+    # and "obfuscated", which strips out numeric and string literals.
+    record_sql: obfuscated
+
+    # Threshold in seconds for when to collect stack trace for a SQL
+    # call. In other words, when SQL statements exceed this threshold,
+    # then capture and send to New Relic the current stack trace. This is
+    # helpful for pinpointing where long SQL calls originate from.
+    stack_trace_threshold: 0.500
+
+    # Determines whether the agent will capture query plans for slow
+    # SQL queries.  Only supported in mysql and postgres.  Should be
+    # set to false when using other adapters.
+    # explain_enabled: true
+
+    # Threshold for query execution time below which query plans will
+    # not be captured.  Relevant only when `explain_enabled` is true.
+    # explain_threshold: 0.5
+
+  # Error collector captures information about uncaught exceptions and
+  # sends them to New Relic for viewing
+  error_collector:
+
+    # Error collector is enabled by default. Set this to false to turn
+    # it off. This feature is only available at the Professional and above
+    # product levels.
+    enabled: true
+
+    # Rails Only - tells error collector whether or not to capture a
+    # source snippet around the place of the error when errors are View
+    # related.
+    capture_source: true
+
+    # To stop specific errors from reporting to New Relic, set this property
+    # to comma-separated values.  Default is to ignore routing errors,
+    # which are how 404's get triggered.
+    ignore_errors: "ActionController::RoutingError,Sinatra::NotFound"
+
+
+# Environment-specific settings are in this section.
+# RAILS_ENV or RACK_ENV (as appropriate) is used to determine the environment.
+# If your application has other named environments, configure them here.
+development:
+  <<: *default_settings
+  app_name: Controlled Vocabulary Manager (Development)
+
+  # NOTE: There is substantial overhead when running in developer mode.
+  # Do not use for production or load testing.
+  developer_mode: true
+
+test:
+  <<: *default_settings
+  # It doesn't make sense to report to New Relic from automated test runs.
+  monitor_mode: false
+
+staging:
+  <<: *default_settings
+  app_name: Controlled Vocabulary Manager (Staging)
+
+production:
+  <<: *default_settings