diff --git a/.dev_to/compose.yml b/.dev_to/compose.yml
index 6db3e51f..a86d1574 100644
--- a/.dev_to/compose.yml
+++ b/.dev_to/compose.yml
@@ -45,6 +45,11 @@ x-backend: &backend
PSQL_HISTFILE: /usr/local/hist/.psql_history
IRB_HISTFILE: /usr/local/hist/.irb_history
EDITOR: vi
+ NEW_RELIC_LICENSE_KEY: ${NR_LICENSE_KEY}
+ NEW_RELIC_APP_NAME: "dev_to"
+ NEW_RELIC_LOG: "stdout"
+ NEW_RELIC_AGENT_ENABLED: "true"
+ NEW_RELIC_ENV: "development"
depends_on: &backend_depends_on
postgres:
condition: service_healthy
diff --git a/.gitignore b/.gitignore
index 53c5b710..e961c3b7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -56,3 +56,4 @@ package-lock.json
#sitemap
/public/sitemap.xml.gz
+.env
\ No newline at end of file
diff --git a/.ruby-version b/.ruby-version
index bea438e9..47b322c9 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.3.1
+3.4.1
diff --git a/Gemfile b/Gemfile
index b107eb92..4107a058 100644
--- a/Gemfile
+++ b/Gemfile
@@ -40,6 +40,7 @@ gem "dalli", "~> 2.7"
gem "delayed_job_active_record", "~> 4.1"
gem "delayed_job_web", "~> 1.4"
gem "devise", "~> 4.6"
+gem 'dotenv-rails'
gem "draper", "~> 3.0"
gem "email_validator", "~> 1.6"
gem "emoji_regex", "~> 1.0"
@@ -105,6 +106,11 @@ gem "validate_url", "~> 1.0"
gem "webpacker", "~> 3.6"
gem "webpush", "~> 0.3"
+# Monitoring
+gem "newrelic_rpm"
+gem "rack-mini-profiler"
+gem "pghero"
+
group :development do
gem "better_errors", "~> 2.5"
gem "binding_of_caller", "~> 0.8"
@@ -119,7 +125,7 @@ group :development do
gem "web-console", "~> 3.7"
end
-group :development, :test do
+group :development, :test, :profile do
gem "capybara", "~> 3.13"
gem "derailed", "~> 0.1"
gem "erb_lint", "~> 0.0", require: false
@@ -132,6 +138,9 @@ group :development, :test do
gem "rspec-retry", "~> 0.6"
gem "rubocop", "~> 0.63", require: false
gem "rubocop-rspec", "~> 1.31"
+ gem "stackprof", "~> 0.2"
+ gem "ruby-prof", "~> 0.17"
+ gem "foreman"
# gem "spring", "~> 2.0"
# gem "spring-commands-rspec", "~> 1.0"
gem "vcr", "~> 4.0"
@@ -146,12 +155,10 @@ group :test do
gem "launchy", "~> 2.4"
gem "pundit-matchers", "~> 1.6"
gem "rails-controller-testing", "~> 1.0"
- gem "ruby-prof", "~> 0.17", require: false
gem "selenium-webdriver", "~> 3.141"
gem "shoulda-matchers", "4.0.0.rc1", require: false
gem "simplecov", "~> 0.16", require: false
gem "sinatra", "~> 2.0"
- gem "stackprof", "~> 0.2", require: false, platforms: :ruby
gem "stripe-ruby-mock", "~> 2.5", require: "stripe_mock"
gem "test-prof", "~> 0.7"
gem "timecop", "~> 0.9"
diff --git a/Gemfile.lock b/Gemfile.lock
index 130d7472..ffc3e496 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -254,6 +254,10 @@ GEM
diff-lcs (1.6.0)
docile (1.4.1)
domain_name (0.6.20240107)
+ dotenv (2.8.1)
+ dotenv-rails (2.8.1)
+ dotenv (= 2.8.1)
+ railties (>= 3.2)
draper (3.1.0)
actionpack (>= 5.0)
activemodel (>= 5.0)
@@ -472,6 +476,7 @@ GEM
fog-xml (0.1.5)
fog-core
nokogiri (>= 1.5.11, < 2.0.0)
+ foreman (0.88.1)
formatador (0.3.0)
front_matter_parser (0.2.1)
fugit (1.11.1)
@@ -646,6 +651,7 @@ GEM
net-smtp (0.5.1)
net-protocol
netrc (0.11.0)
+ newrelic_rpm (9.17.0)
nio4r (2.7.4)
nokogiri (1.15.7-aarch64-linux)
racc (~> 1.4)
@@ -697,6 +703,8 @@ GEM
ast (~> 2.4.1)
racc
pg (1.5.9)
+ pghero (2.8.3)
+ activerecord (>= 5)
pry (0.14.2)
coderay (~> 1.1)
method_source (~> 1.0)
@@ -726,6 +734,8 @@ GEM
rack (2.2.11)
rack-host-redirect (1.3.0)
rack
+ rack-mini-profiler (3.3.1)
+ rack (>= 1.2.0)
rack-protection (2.2.4)
rack
rack-proxy (0.7.7)
@@ -1048,6 +1058,7 @@ DEPENDENCIES
derailed (~> 0.1)
derailed_benchmarks (~> 1.3)
devise (~> 4.6)
+ dotenv-rails
draper (~> 3.0)
email_validator (~> 1.6)
emoji_regex (~> 1.0)
@@ -1062,6 +1073,7 @@ DEPENDENCIES
figaro (~> 1.1)
fix-db-schema-conflicts
fog (~> 1.41)
+ foreman
front_matter_parser (~> 0.2)
gemoji (~> 3.0.0)
gibbon (~> 2.2)
@@ -1081,6 +1093,7 @@ DEPENDENCIES
liquid (~> 4.0)
memory_profiler (~> 0.9)
nakayoshi_fork
+ newrelic_rpm
nokogiri (~> 1.10)
octokit (~> 4.13)
omniauth (~> 1.9)
@@ -1088,6 +1101,7 @@ DEPENDENCIES
omniauth-twitter (~> 1.4)
parallel_tests (~> 2.27)
pg (~> 1.1)
+ pghero
pry (~> 0.12)
pry-byebug (~> 3.7)
pry-rails (~> 0.3)
@@ -1098,6 +1112,7 @@ DEPENDENCIES
pusher (~> 1.3)
pusher-push-notifications (~> 1.0)
rack-host-redirect (~> 1.3)
+ rack-mini-profiler
rack-timeout (~> 0.5)
rails (~> 5.1.6)
rails-assets-airbrake-js-client (~> 1.5)!
diff --git a/Procfile.prof b/Procfile.prof
new file mode 100644
index 00000000..f6093523
--- /dev/null
+++ b/Procfile.prof
@@ -0,0 +1,3 @@
+web: bin/rails s -p 3000
+webpacker: ./bin/webpack-dev-server
+job: bin/rake jobs:work
diff --git a/app/controllers/stories_controller.rb b/app/controllers/stories_controller.rb
index df60029f..69cf94f4 100644
--- a/app/controllers/stories_controller.rb
+++ b/app/controllers/stories_controller.rb
@@ -1,6 +1,13 @@
class StoriesController < ApplicationController
before_action :authenticate_user!, except: %i[index search show feed new]
before_action :set_cache_control_headers, only: %i[index search show]
+ around_action :profile_with_stackprof, only: :index
+
+ def profile_with_stackprof
+ StackProf.run(mode: :wall, raw: true, out: "tmp/stackprof-wall.dump", interval: 50) do
+ yield
+ end
+ end
def index
add_param_context(:username, :tag)
diff --git a/app/views/stories/_main_stories_feed.html.erb b/app/views/stories/_main_stories_feed.html.erb
index b6cd0a65..15bd910c 100644
--- a/app/views/stories/_main_stories_feed.html.erb
+++ b/app/views/stories/_main_stories_feed.html.erb
@@ -55,7 +55,9 @@
<% if !user_signed_in? && i == 4 %>
<%= render "stories/sign_in_invitation" %>
<% end %>
- <%= render "articles/single_story", story: story %>
+ <% cache ["single_story", story] do %>
+ <%= render "articles/single_story", story: story %>
+ <% end %>
<% end %>
<% end %>
<% if @stories.size > 1 %>
diff --git a/bin/startup b/bin/startup
index c7e84efb..8e55c856 100755
--- a/bin/startup
+++ b/bin/startup
@@ -12,5 +12,10 @@ end
chdir APP_ROOT do
puts "== STARTING UP =="
- system! "foreman start -f Procfile.dev"
+ if ENV["RAILS_ENV"] == "profile"
+ system! "bundle exec rake assets:precompile"
+ system! "foreman start -f Procfile.prof"
+ else
+ system! "foreman start -f Procfile.dev"
+ end
end
diff --git a/case-stady.md b/case-stady.md
new file mode 100644
index 00000000..33920d00
--- /dev/null
+++ b/case-stady.md
@@ -0,0 +1,154 @@
+## Актуальная проблема
+Cтраница `StoriesController#index` загружается очень медленно. Необходимо исследовать проблему на возможность оптимизации.
+
+## Формирование метрики
+В качестве метрики я использовал данные из `ab` бенмарка, а именно среднее значение времени затраченного на выполнение запроса
+на тесте `ab -n 100 -c 5 http://localhost:3000/`
+
+## Статистика до оптимизации
+Выполнение бенчмарка `ab -n 100 -c 5 http://localhost:3000/` показало значение `Time per request: 4792.132 [ms]`
+```
+Concurrency Level: 5
+Time taken for tests: 95.843 seconds
+Complete requests: 100
+Failed requests: 62
+ (Connect: 0, Receive: 0, Length: 62, Exceptions: 0)
+Total transferred: 16150036 bytes
+HTML transferred: 16048916 bytes
+Requests per second: 1.04 [#/sec] (mean)
+Time per request: 4792.132 [ms] (mean)
+Time per request: 958.426 [ms] (mean, across all concurrent requests)
+Transfer rate: 164.56 [Kbytes/sec] received
+
+Connection Times (ms)
+ min mean[+/-sd] median max
+Connect: 0 0 0.2 0 2
+Processing: 2766 4644 285.4 4675 4950
+Waiting: 2765 4643 285.4 4674 4950
+Total: 2766 4644 285.4 4675 4950
+
+Percentage of the requests served within a certain time (ms)
+ 50% 4675
+ 66% 4712
+ 75% 4757
+ 80% 4797
+ 90% 4852
+ 95% 4915
+ 98% 4947
+ 99% 4950
+ 100% 4950 (longest request)
+```
+
+## Поиск точек роста
+Для поиска точек роста я воспользовался инструментами rack-mini-profiler и Newrelic.
+
+Newrelic подтверждает значения полученные в ab:
+
+
+rack-mini-profiler показал большое количество рендеринга `_single_story.html.erb`
+
+
+## Оптимизация
+
+Кэшируем проблемный паршиал:
+```
+<% cache ["single_story", story] do %>
+ <%= render "articles/single_story", story: story %>
+<% end %>
+```
+Проверяем `ab` бенчмарком насколько изменилась метрика:
+```
+Server Software:
+Server Hostname: localhost
+Server Port: 3000
+
+Document Path: /
+Document Length: 158982 bytes
+
+Concurrency Level: 5
+Time taken for tests: 20.597 seconds
+Complete requests: 100
+Failed requests: 15
+ (Connect: 0, Receive: 0, Length: 15, Exceptions: 0)
+Total transferred: 15999369 bytes
+HTML transferred: 15898184 bytes
+Requests per second: 4.86 [#/sec] (mean)
+Time per request: 1029.829 [ms] (mean)
+Time per request: 205.966 [ms] (mean, across all concurrent requests)
+Transfer rate: 758.59 [Kbytes/sec] received
+
+Connection Times (ms)
+ min mean[+/-sd] median max
+Connect: 0 1 2.0 0 13
+Processing: 240 1010 111.1 1018 1266
+Waiting: 240 1009 111.1 1015 1262
+Total: 241 1011 110.9 1018 1266
+
+Percentage of the requests served within a certain time (ms)
+ 50% 1018
+ 66% 1041
+ 75% 1060
+ 80% 1073
+ 90% 1125
+ 95% 1158
+ 98% 1229
+ 99% 1266
+ 100% 1266 (longest request)
+```
+Получаем значение Time per request: 1029.829 [ms], что почти в 5 раз быстрее первоначальных цифр.
+rack-mini-profiler теперь показывает что данные кэшируется и лишний раз паршиал `_single_story.html.erb` не рендерится.
+При этом показатели количества комментариев и количества лайков показывают актальное значение, тк сам объект story не закэширован.
+
+Попробовал профилирование с помощью Stackprof в `around_action` режиме и Ruby-prof с `callgrind`.
+Удобно для профилирования отдельных методов. Из минусов, в трейсе много лишней рельсовой информации.
+
+## Local_Production env
+Создал новый энв `profile`, который максимально приближен к production.
+`ab` бенчмарк показал Time per request: 92.812 [ms], что в 10 раз быстрее последнего оптимизированного варианта.
+```
+ab -n 100 -c 5 http://localhost:3000/
+This is ApacheBench, Version 2.3 <$Revision: 1913912 $>
+Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
+Licensed to The Apache Software Foundation, http://www.apache.org/
+
+Benchmarking localhost (be patient).....done
+
+
+Server Software:
+Server Hostname: localhost
+Server Port: 3000
+
+Document Path: /
+Document Length: 136409 bytes
+
+Concurrency Level: 5
+Time taken for tests: 1.856 seconds
+Complete requests: 100
+Failed requests: 97
+ (Connect: 0, Receive: 0, Length: 97, Exceptions: 0)
+Non-2xx responses: 97
+Total transferred: 602228 bytes
+HTML transferred: 584118 bytes
+Requests per second: 53.87 [#/sec] (mean)
+Time per request: 92.812 [ms] (mean)
+Time per request: 18.562 [ms] (mean, across all concurrent requests)
+Transfer rate: 316.83 [Kbytes/sec] received
+
+Connection Times (ms)
+ min mean[+/-sd] median max
+Connect: 0 0 0.9 0 7
+Processing: 6 63 123.9 18 760
+Waiting: 6 62 123.8 17 760
+Total: 6 64 123.9 18 760
+
+Percentage of the requests served within a certain time (ms)
+ 50% 18
+ 66% 24
+ 75% 41
+ 80% 53
+ 90% 207
+ 95% 272
+ 98% 759
+ 99% 760
+ 100% 760 (longest request)
+```
diff --git a/config/application.rb b/config/application.rb
index 1b4c391f..bce9d1d7 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -35,6 +35,7 @@ class Application < Rails::Application
config.active_job.queue_adapter = :delayed_job
config.middleware.use Rack::Deflater
+ config.middleware.use(Rack::RubyProf, enabled: true, path: "tmp/profile")
# Globally handle Pundit::NotAuthorizedError by serving 404
config.action_dispatch.rescue_responses["Pundit::NotAuthorizedError"] = :not_found
diff --git a/config/environments/profile.rb b/config/environments/profile.rb
new file mode 100644
index 00000000..ee352c01
--- /dev/null
+++ b/config/environments/profile.rb
@@ -0,0 +1,126 @@
+# config/environments/profile.rb
+Rails.application.configure do
+ # config.middleware.use(Rack::RubyProf, :path => 'ruby-prof-results')
+ # config.middleware.use ProfileMiddleware
+
+ # Verifies that versions and hashed value of the package contents in the project's package.json
+ config.webpacker.check_yarn_integrity = false
+
+ # Settings specified here will take precedence over those in config/application.rb.
+
+ # Code is not reloaded between requests.
+ config.cache_classes = true
+
+ # Eager load code on boot. This eager loads most of Rails and
+ # your application in memory, allowing both threaded web servers
+ # and those relying on copy on write to perform better.
+ # Rake tasks automatically ignore this option for performance.
+ config.eager_load = true
+
+ # Full error reports are disabled and caching is turned on.
+ config.consider_all_requests_local = false
+ config.action_controller.perform_caching = true
+
+ # Enable Rack::Cache to put a simple HTTP cache in front of your application
+ # Add `rack-cache` to your Gemfile before enabling this.
+ # For large-scale production use, consider using a caching reverse proxy like
+ # NGINX, varnish or squid.
+ # config.action_dispatch.rack_cache = true
+ config.read_encrypted_secrets = true
+
+ # Disable serving static files from the `/public` folder by default since
+ # Apache or NGINX already handles this.
+ config.public_file_server.enabled = ENV["RAILS_SERVE_STATIC_FILES"].present?
+ config.public_file_server.headers = {
+ "Cache-Control" => "public, s-maxage=2592000, max-age=86400"
+ }
+
+ # Compress JavaScripts and CSS.
+ config.assets.js_compressor = Uglifier.new(harmony: true)
+ # config.assets.css_compressor = :sass
+
+ # Do not fallback to assets pipeline if a precompiled asset is missed.
+ config.assets.compile = true
+ config.assets.debug = false
+
+ # Asset digests allow you to set far-future HTTP expiration dates on all assets,
+ # yet still be able to expire them through the digest params.
+ config.assets.digest = true
+
+ # `config.assets.precompile` and `config.assets.version`
+ # have moved to config/initializers/assets.rb
+
+ # Specifies the header that your server uses for sending files.
+ # config.action_dispatch.x_sendfile_header = 'X-Sendfile' # for Apache
+ # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for NGINX
+
+ # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
+ # config.force_ssl = true
+
+ # Use the lowest log level to ensure availability of diagnostic information
+ # when problems arise.
+ config.log_level = :debug
+
+ # Prepend all log lines with the following tags.
+ config.log_tags = [:request_id]
+
+ # Use a different logger for distributed setups.
+ # config.logger = ActiveSupport::TaggedLogging.new(SyslogLogger.new)
+
+ # Use a different cache store in production.
+ # config.cache_store = :mem_cache_store
+ config.cache_store = :memory_store
+ config.public_file_server.headers = {
+ "Cache-Control" => "public, max-age=172800"
+ }
+
+ config.action_mailer.perform_caching = false
+
+ # Ignore bad email addresses and do not raise email delivery errors.
+ # Set this to true and configure the email server for immediate delivery to raise delivery errors.
+ config.action_mailer.raise_delivery_errors = false
+
+ # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
+ # the I18n.default_locale when a translation cannot be found).
+ config.i18n.fallbacks = [I18n.default_locale]
+
+ # Send deprecation notices to registered listeners.
+ config.active_support.deprecation = :notify
+
+ # Use default logging formatter so that PID and timestamp are not suppressed.
+ # config.log_formatter = ::Logger::Formatter.new
+ config.log_formatter = ::Logger::Formatter.new
+ if ENV["RAILS_LOG_TO_STDOUT"].present?
+ logger = ActiveSupport::Logger.new(STDOUT)
+ logger.formatter = config.log_formatter
+ config.logger = ActiveSupport::TaggedLogging.new(logger)
+ end
+
+ # Timber.io logger
+ send_logs_to_timber = ENV["SEND_LOGS_TO_TIMBER"] || "false" # <---- set to false to stop sending dev logs to Timber.io
+ log_device = send_logs_to_timber == "true" ? Timber::LogDevices::HTTP.new(ENV["TIMBER"]) : STDOUT
+ logger = Timber::Logger.new(log_device)
+ logger.level = config.log_level
+ config.logger = ActiveSupport::TaggedLogging.new(logger)
+
+ # Do not dump schema after migrations.
+ config.active_record.dump_schema_after_migration = false
+
+ config.app_domain = "localhost:3000"
+
+ config.action_mailer.delivery_method = :smtp
+ config.action_mailer.perform_deliveries = true
+ config.action_mailer.default_url_options = { host: config.app_domain }
+ config.action_mailer.smtp_settings = {
+ address: "smtp.gmail.com",
+ port: "587",
+ enable_starttls_auto: true,
+ user_name: '<%= ENV["DEVELOPMENT_EMAIL_USERNAME"] %>',
+ password: '<%= ENV["DEVELOPMENT_EMAIL_PASSWORD"] %>',
+ authentication: :plain,
+ domain: "localhost:3000"
+ }
+
+ config.action_mailer.preview_path = "#{Rails.root}/spec/mailers/previews"
+end
+
diff --git a/config/initializers/carrierwave.rb b/config/initializers/carrierwave.rb
index 9e191ac1..30e87b7f 100644
--- a/config/initializers/carrierwave.rb
+++ b/config/initializers/carrierwave.rb
@@ -3,7 +3,7 @@
require "carrierwave/storage/fog"
CarrierWave.configure do |config|
- if Rails.env.development? || Rails.env.test?
+ if Rails.env.development? || Rails.env.test? || Rails.env.profile?
config.storage = :file
else
# config.fog_provider = 'fog-aws'
diff --git a/config/newrelic.yml b/config/newrelic.yml
new file mode 100644
index 00000000..a4c5a300
--- /dev/null
+++ b/config/newrelic.yml
@@ -0,0 +1,66 @@
+#
+# This file configures the New Relic Agent. New Relic monitors Ruby, Java,
+# .NET, PHP, Python, Node, and Go applications with deep visibility and low
+# overhead. For more information, visit www.newrelic.com.
+#
+# Generated October 28, 2022
+#
+# This configuration file is custom generated for NewRelic Administration
+#
+# 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.
+ license_key: <%= ENV['NR_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: 'dev_to'
+
+ distributed_tracing:
+ enabled: true
+
+ # To disable the agent regardless of other settings, uncomment the following:
+
+ # agent_enabled: false
+
+ # Logging level for log/newrelic_agent.log
+ log_level: info
+
+ application_logging:
+ # If `true`, all logging-related features for the agent can be enabled or disabled
+ # independently. If `false`, all logging-related features are disabled.
+ enabled: true
+ forwarding:
+ # If `true`, the agent captures log records emitted by this application.
+ enabled: true
+ # Defines the maximum number of log records to buffer in memory at a time.
+ max_samples_stored: 10000
+ metrics:
+ # If `true`, the agent captures metrics related to logging for this application.
+ enabled: true
+ local_decorating:
+ # If `true`, the agent decorates logs with metadata to link to entities, hosts, traces, and spans.
+ # This requires a log forwarder to send your log files to New Relic.
+ # This should not be used when forwarding is enabled.
+ enabled: false
+
+# 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: 'dev_to (Development)'
+
+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: 'dev_to (Staging)'
+
+production:
+ <<: *default_settings
diff --git a/config/routes.rb b/config/routes.rb
index 8ba426bb..2f7b28b4 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -7,6 +7,8 @@
registrations: "registrations"
}
+ mount PgHero::Engine, at: "pghero"
+
authenticated :user, ->(user) { user.admin? } do
mount DelayedJobWeb, at: "/delayed_job"
end
diff --git a/config/secrets.yml b/config/secrets.yml
index 73f5e05c..80f824b2 100644
--- a/config/secrets.yml
+++ b/config/secrets.yml
@@ -16,6 +16,8 @@ development:
test:
secret_key_base: 42dd7834039ebbea271af22635a6782ee15e519b14629c5276bfcdd4cff841e9926994784bb43a335a8f8c9739bb254ea3afe831839d4dc65654ec7516ec25f0
+profile:
+ secret_key_base: a60edc976c913b19fd9fc8118936fbe1df2b07f4eecc5ad32f975e33cd4ea36b150c1ce933b681b90874a46568041629003dcbfc07238f7dca91741bcd1ec870
# Do not keep production secrets in the repository,
# instead read values from the environment.
diff --git a/config/webpack/profile.js b/config/webpack/profile.js
new file mode 100644
index 00000000..d7346478
--- /dev/null
+++ b/config/webpack/profile.js
@@ -0,0 +1,3 @@
+const environment = require('./environment');
+
+module.exports = environment.toWebpackConfig();
diff --git a/config/webpacker.yml b/config/webpacker.yml
index 2dfcd170..27f41c40 100644
--- a/config/webpacker.yml
+++ b/config/webpacker.yml
@@ -46,6 +46,18 @@ test:
# Compile test packs to a separate directory
public_output_path: packs-test
+profile:
+ <<: *default
+ compile: true
+
+ dev_server:
+ host: 0.0.0.0
+ port: 3035
+ hmr: false
+ https: false
+
+ cache_manifest: true
+
production:
<<: *default
diff --git a/public/newrelic.png b/public/newrelic.png
new file mode 100644
index 00000000..2fd4f717
Binary files /dev/null and b/public/newrelic.png differ
diff --git a/public/single_story.png b/public/single_story.png
new file mode 100644
index 00000000..010e91e1
Binary files /dev/null and b/public/single_story.png differ