[Enhancement] Docker support Debugging (byebug & pry) and receive emails to MailHog via smtp (#371)

* updated development docker setup

* turned on yarn integrity check

* create test docker compose and update development dockerfile

* create docker Readme.md file

* fix README.md file

* create docker-copmose and dockerfile for production/staging environment setup

* added mailhog to catch email

* remove yarn integrity check in development mode!

* Update Readme.md file to support mailhog inbox

* update link to docker development guide from mail README

* remove .env.development and use .env.example for docker as .env.development was mixing with circleci config

* make the dockerfile configurable like before

* update docker-compose as per suggesion in PR

* create docker setup docs

* Revert accidental deletion

* fix: typo for branding consistency

* fix typo

* update the code as per recommendation in PR

* remove package-lock and add gitignore

* fix vulnerability AND update env for tests to pass

* Fix yarn integrity check across different docker services

* update code based on rubocop and PR suggestions

* remove redundant test docker-compose and dockerfile

* update rails entrypoint, update docs and Gemfile

* [Rubocop] order Gemfile alphabetically

* Reordering Gemfile

.env.example

@@ -1,19 +1,32 @@
+REDIS_URL=redis://redis:6379
+SECRET_KEY_BASE=
+
+# Postgres Database config variables
+POSTGRES_HOST=postgres
+POSTGRES_USERNAME=postgres
+POSTGRES_PASSWORD=
+RAILS_ENV=development
+RAILS_MAX_THREADS=5
+
 #fb app
 FB_VERIFY_TOKEN=
 FB_APP_SECRET=
 FB_APP_ID=
 
 #mail
-MAILER_SENDER_EMAIL=
+MAILER_SENDER_EMAIL=accounts@chatwoot.com
-SMTP_ADDRESS=
+SMTP_PORT=1025
+SMTP_DOMAIN=chatwoot.com
+SMTP_ADDRESS=mailhog
 SMTP_USERNAME=
 SMTP_PASSWORD=
+SMTP_AUTHENTICATION=
+SMTP_ENABLE_STARTTLS_AUTO=
 
 #misc
-FRONTEND_URL=http://localhost:3000
+FRONTEND_URL=http://0.0.0.0:3000
 
 #s3
-
 S3_BUCKET_NAME=
 AWS_ACCESS_KEY_ID=
 AWS_SECRET_ACCESS_KEY=
@@ -23,16 +36,10 @@ AWS_REGION=
 SENTRY_DSN=
 
 ####  This environment variables are only required in hosted version which has billing
-BILLING_ENABLED=
+ENABLE_BILLING=
+
 ## chargebee settings
 CHARGEBEE_API_KEY=
 CHARGEBEE_SITE=
 CHARGEBEE_WEBHOOK_USERNAME=
-CHARGEBEE_WEBHOOK_PASSWORD=
+CHARGEBEE_WEBHOOK_PASSWORD=
-
-#Database config variables
-POSTGRES_HOST=localhost
-POSTGRES_DATABASE=chatwoot_dev
-POSTGRES_USERNAME=postgres
-POSTGRES_PASSWORD=
-RAILS_MAX_THREADS=5

.gitignore

@@ -45,3 +45,7 @@ buildreports
 coverage
 
 /storage
+
+# ignore packages
+node_modules
+package-lock.json

.rubocop.yml

@@ -18,6 +18,7 @@ Metrics/BlockLength:
   Exclude:
     - spec/**/*
     - '**/routes.rb'
+    - 'config/environments/*'
 Rails/ApplicationController:
   Exclude:
     - 'app/controllers/api/v1/widget/messages_controller.rb'

Gemfile

@@ -80,19 +80,14 @@ group :development do
   gem 'web-console'
 end
 
-group :test do
-  gem 'action-cable-testing'
-  gem 'mock_redis'
-  gem 'shoulda-matchers'
-  gem 'simplecov', require: false
-end
-
 group :development, :test do
+  gem 'action-cable-testing'
   gem 'bundle-audit', require: false
   gem 'byebug', platform: :mri
   gem 'factory_bot_rails'
   gem 'faker'
   gem 'listen'
+  gem 'mock_redis'
   gem 'pry-rails'
   gem 'rspec-rails', '~> 4.0.0.beta2'
   gem 'rubocop', require: false
@@ -100,6 +95,8 @@ group :development, :test do
   gem 'rubocop-rails', require: false
   gem 'rubocop-rspec', require: false
   gem 'seed_dump'
+  gem 'shoulda-matchers'
+  gem 'simplecov', require: false
   gem 'spring'
   gem 'spring-watcher-listen'
 end

Gemfile.lock

@@ -3,56 +3,56 @@ GEM
   specs:
     action-cable-testing (0.6.0)
       actioncable (>= 5.0)
-    actioncable (6.0.1)
+    actioncable (6.0.2.1)
-      actionpack (= 6.0.1)
+      actionpack (= 6.0.2.1)
       nio4r (~> 2.0)
       websocket-driver (>= 0.6.1)
-    actionmailbox (6.0.1)
+    actionmailbox (6.0.2.1)
-      actionpack (= 6.0.1)
+      actionpack (= 6.0.2.1)
-      activejob (= 6.0.1)
+      activejob (= 6.0.2.1)
-      activerecord (= 6.0.1)
+      activerecord (= 6.0.2.1)
-      activestorage (= 6.0.1)
+      activestorage (= 6.0.2.1)
-      activesupport (= 6.0.1)
+      activesupport (= 6.0.2.1)
       mail (>= 2.7.1)
-    actionmailer (6.0.1)
+    actionmailer (6.0.2.1)
-      actionpack (= 6.0.1)
+      actionpack (= 6.0.2.1)
-      actionview (= 6.0.1)
+      actionview (= 6.0.2.1)
-      activejob (= 6.0.1)
+      activejob (= 6.0.2.1)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 2.0)
-    actionpack (6.0.1)
+    actionpack (6.0.2.1)
-      actionview (= 6.0.1)
+      actionview (= 6.0.2.1)
-      activesupport (= 6.0.1)
+      activesupport (= 6.0.2.1)
-      rack (~> 2.0)
+      rack (~> 2.0, >= 2.0.8)
       rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.2.0)
-    actiontext (6.0.1)
+    actiontext (6.0.2.1)
-      actionpack (= 6.0.1)
+      actionpack (= 6.0.2.1)
-      activerecord (= 6.0.1)
+      activerecord (= 6.0.2.1)
-      activestorage (= 6.0.1)
+      activestorage (= 6.0.2.1)
-      activesupport (= 6.0.1)
+      activesupport (= 6.0.2.1)
       nokogiri (>= 1.8.5)
-    actionview (6.0.1)
+    actionview (6.0.2.1)
-      activesupport (= 6.0.1)
+      activesupport (= 6.0.2.1)
       builder (~> 3.1)
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.1, >= 1.2.0)
-    activejob (6.0.1)
+    activejob (6.0.2.1)
-      activesupport (= 6.0.1)
+      activesupport (= 6.0.2.1)
       globalid (>= 0.3.6)
-    activemodel (6.0.1)
+    activemodel (6.0.2.1)
-      activesupport (= 6.0.1)
+      activesupport (= 6.0.2.1)
-    activerecord (6.0.1)
+    activerecord (6.0.2.1)
-      activemodel (= 6.0.1)
+      activemodel (= 6.0.2.1)
-      activesupport (= 6.0.1)
+      activesupport (= 6.0.2.1)
-    activestorage (6.0.1)
+    activestorage (6.0.2.1)
-      actionpack (= 6.0.1)
+      actionpack (= 6.0.2.1)
-      activejob (= 6.0.1)
+      activejob (= 6.0.2.1)
-      activerecord (= 6.0.1)
+      activerecord (= 6.0.2.1)
       marcel (~> 0.3.1)
-    activesupport (6.0.1)
+    activesupport (6.0.2.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
@@ -68,16 +68,16 @@ GEM
     ast (2.4.0)
     attr_extras (6.2.1)
     aws-eventstream (1.0.3)
-    aws-partitions (1.251.0)
+    aws-partitions (1.259.0)
-    aws-sdk-core (3.84.0)
+    aws-sdk-core (3.86.0)
       aws-eventstream (~> 1.0, >= 1.0.2)
       aws-partitions (~> 1, >= 1.239.0)
       aws-sigv4 (~> 1.1)
       jmespath (~> 1.0)
-    aws-sdk-kms (1.26.0)
+    aws-sdk-kms (1.27.0)
       aws-sdk-core (~> 3, >= 3.71.0)
       aws-sigv4 (~> 1.1)
-    aws-sdk-s3 (1.59.0)
+    aws-sdk-s3 (1.60.1)
       aws-sdk-core (~> 3, >= 3.83.0)
       aws-sdk-kms (~> 1)
       aws-sigv4 (~> 1.1)
@@ -94,7 +94,7 @@ GEM
     brakeman (4.7.2)
     browser (2.7.1)
     buftok (0.2.0)
-    builder (3.2.3)
+    builder (3.2.4)
     bullet (6.0.2)
       activesupport (>= 3.0.0)
       uniform_notifier (~> 1.11)
@@ -154,7 +154,7 @@ GEM
     factory_bot_rails (5.1.1)
       factory_bot (~> 5.1.0)
       railties (>= 4.2.0)
-    faker (2.8.1)
+    faker (2.9.0)
       i18n (>= 1.6, < 1.8)
     faraday (0.17.1)
       multipart-post (>= 1.2, < 3)
@@ -174,13 +174,13 @@ GEM
       domain_name (~> 0.5)
     http-form_data (2.1.1)
     http_parser.rb (0.6.0)
-    httparty (0.17.1)
+    httparty (0.17.3)
       mime-types (~> 3.0)
       multi_xml (>= 0.5.2)
     i18n (1.7.0)
       concurrent-ruby (~> 1.0)
     ice_nine (0.11.2)
-    image_processing (1.9.3)
+    image_processing (1.10.0)
       mini_magick (>= 4.9.5, < 5)
       ruby-vips (>= 2.0.13, < 3)
     inflecto (0.0.2)
@@ -188,7 +188,7 @@ GEM
     jbuilder (2.9.1)
       activesupport (>= 4.2.0)
     jmespath (1.4.0)
-    json (2.2.0)
+    json (2.3.0)
     json_pure (2.2.0)
     jwt (2.2.1)
     kaminari (1.1.1)
@@ -268,29 +268,29 @@ GEM
       rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
-    rails (6.0.1)
+    rails (6.0.2.1)
-      actioncable (= 6.0.1)
+      actioncable (= 6.0.2.1)
-      actionmailbox (= 6.0.1)
+      actionmailbox (= 6.0.2.1)
-      actionmailer (= 6.0.1)
+      actionmailer (= 6.0.2.1)
-      actionpack (= 6.0.1)
+      actionpack (= 6.0.2.1)
-      actiontext (= 6.0.1)
+      actiontext (= 6.0.2.1)
-      actionview (= 6.0.1)
+      actionview (= 6.0.2.1)
-      activejob (= 6.0.1)
+      activejob (= 6.0.2.1)
-      activemodel (= 6.0.1)
+      activemodel (= 6.0.2.1)
-      activerecord (= 6.0.1)
+      activerecord (= 6.0.2.1)
-      activestorage (= 6.0.1)
+      activestorage (= 6.0.2.1)
-      activesupport (= 6.0.1)
+      activesupport (= 6.0.2.1)
       bundler (>= 1.3.0)
-      railties (= 6.0.1)
+      railties (= 6.0.2.1)
       sprockets-rails (>= 2.0.0)
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
     rails-html-sanitizer (1.3.0)
       loofah (~> 2.3)
-    railties (6.0.1)
+    railties (6.0.2.1)
-      actionpack (= 6.0.1)
+      actionpack (= 6.0.2.1)
-      activesupport (= 6.0.1)
+      activesupport (= 6.0.2.1)
       method_source
       rake (>= 0.8.7)
       thor (>= 0.20.3, < 2.0)
@@ -300,7 +300,7 @@ GEM
     rb-inotify (0.10.0)
       ffi (~> 1.0)
     redis (4.1.3)
-    redis-namespace (1.6.0)
+    redis-namespace (1.7.0)
       redis (>= 3.0.4)
     redis-rack-cache (2.2.1)
       rack-cache (>= 1.10, < 2)
@@ -332,7 +332,7 @@ GEM
       rspec-mocks (~> 3.8)
       rspec-support (~> 3.8)
     rspec-support (3.9.0)
-    rubocop (0.77.0)
+    rubocop (0.78.0)
       jaro_winkler (~> 1.5.1)
       parallel (~> 1.10)
       parser (>= 2.6)
@@ -344,7 +344,7 @@ GEM
     rubocop-rails (2.4.0)
       rack (>= 1.1)
       rubocop (>= 0.72.0)
-    rubocop-rspec (1.37.0)
+    rubocop-rspec (1.37.1)
       rubocop (>= 0.68.1)
     ruby-progressbar (1.10.1)
     ruby-vips (2.0.16)
@@ -352,11 +352,11 @@ GEM
     seed_dump (3.3.1)
       activerecord (>= 4)
       activesupport (>= 4)
-    sentry-raven (2.12.3)
+    sentry-raven (2.13.0)
       faraday (>= 0.7.6, < 1.0)
     shoulda-matchers (4.1.2)
       activesupport (>= 4.2.0)
-    sidekiq (6.0.3)
+    sidekiq (6.0.4)
       connection_pool (>= 2.2.2)
       rack (>= 2.0.0)
       rack-protection (>= 2.0.0)
@@ -424,7 +424,7 @@ GEM
       activemodel (>= 6.0.0)
       bindex (>= 0.4.0)
       railties (>= 6.0.0)
-    webpacker (4.2.0)
+    webpacker (4.2.2)
       activesupport (>= 4.2)
       rack-proxy (>= 0.6.1)
       railties (>= 4.2)

README.md

@@ -53,7 +53,9 @@ You can use our official Docker image from [https://hub.docker.com/r/chatwoot/ch
 docker pull chatwoot/chatwoot
 ```
 
-Follow our [environment variables](https://www.chatwoot.com/docs/environment-variables/) guide to setup environment for Docker
+Follow our [environment variables](https://www.chatwoot.com/docs/environment-variables/) guide to setup environment for Docker.
+
+Follow our [docker development guide](docker/README.md) to develop and debug the application using docker composer.
 
 ## Contributors ✨
 

config/environments/development.rb

@@ -14,7 +14,7 @@ Rails.application.configure do
 
   # Enable/disable caching. By default caching is disabled.
   # Run rails dev:cache to toggle caching.
-  if Rails.root.join('tmp', 'caching-dev.txt').exist?
+  if Rails.root.join('tmp/caching-dev.txt').exist?
     config.action_controller.perform_caching = true
     config.action_controller.enable_fragment_cache_logging = true
 
@@ -27,6 +27,7 @@ Rails.application.configure do
 
     config.cache_store = :null_store
   end
+  config.public_file_server.enabled = true
 
   # Store uploaded files on the local file system (see config/storage.yml for options).
   config.active_storage.service = :local
@@ -37,8 +38,25 @@ Rails.application.configure do
   config.action_mailer.perform_caching = false
   config.action_mailer.default_url_options = { host: 'localhost', port: 3000 }
 
-  config.action_mailer.delivery_method = :letter_opener
   config.action_mailer.perform_deliveries = true
+  config.action_mailer.raise_delivery_errors = true
+  config.action_mailer.delivery_method = :smtp
+  config.action_mailer.default_url_options = { host: 'localhost:3000' }
+
+  smtp_settings = {
+    port: ENV['SMTP_PORT'],
+    domain: ENV['SMTP_DOMAIN'],
+    address: ENV['SMTP_ADDRESS']
+  }
+
+  if ENV['SMTP_AUTHENTICATION'].present?
+    smtp_settings[:user_name] = ENV['SMTP_USERNAME']
+    smtp_settings[:password] = ENV['SMTP_PASSWORD']
+    smtp_settings[:authentication] = ENV['SMTP_AUTHENTICATION']
+    smtp_settings[:enable_starttls_auto] = ENV['SMTP_ENABLE_STARTTLS_AUTO'] if ENV['SMTP_ENABLE_STARTTLS_AUTO'].present?
+  end
+
+  config.action_mailer.smtp_settings = smtp_settings
 
   Rails.application.routes.default_url_options = { host: 'localhost', port: 3000 }
 

config/webpacker.yml

@@ -54,14 +54,14 @@ development:
   compile: true
 
   # Verifies that correct packages and versions are installed by inspecting package.json, yarn.lock, and node_modules
-  check_yarn_integrity: false
+  check_yarn_integrity: true
 
   # Reference: https://webpack.js.org/configuration/dev-server/
   dev_server:
     https: false
-    host: localhost
+    host: 0.0.0.0
     port: 3035
-    public: localhost:3035
+    public: 0.0.0.0:3035
     hmr: false
     # Inline should be set to true if using HMR
     inline: true

docker-compose.production.yaml

@@ -0,0 +1,54 @@
+version: '3'
+
+services:
+  base: &base
+    build:
+      context: .
+      dockerfile: ./docker/Dockerfile
+      args:
+        BUNDLE_WITHOUT: ''
+        RAILS_ENV: 'production'
+        RAILS_SERVE_STATIC_FILES: 'true'
+    image: chatwoot:latest
+
+  rails:
+    <<: *base
+    image: chatwoot:latest
+    depends_on:
+      - postgres
+      - redis
+    ports:
+      - 3000:3000
+    env_file: .env.example ## Change this file for customised env variables
+    environment:
+      - NODE_ENV=production
+      - RAILS_ENV=production
+    entrypoint: docker/entrypoints/rails.sh
+    command: ["bundle", "exec", "rails", "s", "-p", "3000", "-b", "0.0.0.0"]
+
+  postgres:
+    image: postgres:9.6
+    restart: always
+    ports:
+      - '5432:5432'
+    volumes:
+      - postgres:/data/postgres
+    environment:
+      - POSTGRES_DB=chatwoot
+      - POSTGRES_USER=postgres
+      - POSTGRES_PASSWORD=
+
+  redis:
+    image: redis:alpine
+    restart: always
+    volumes:
+      - redis:/data/redis
+    ports:
+      - '6379:6379'
+
+volumes:
+  postgres:
+  redis:
+  bundle:
+  packs:
+  node_modules_rails:

docker-compose.yaml

@@ -1,15 +1,7 @@
 version: '3'
 
-volumes:
-  postgres:
-  redis:
-  bundle:
-  packs:
-  node_modules:
-
 services:
-
+  base: &base
-  server: &server
     build:
       context: .
       dockerfile: ./docker/Dockerfile
@@ -17,39 +9,57 @@ services:
         BUNDLE_WITHOUT: ''
         RAILS_ENV: 'development'
         RAILS_SERVE_STATIC_FILES: 'false'
+    tty: true
+    stdin_open: true
+    image: chatwoot:development
+
+  rails:
+    <<: *base
+    build:
+      context: .
+      dockerfile: ./docker/dockerfiles/rails.Dockerfile
+    image: chatwoot-rails:development
     volumes:
-      - ./:/app:cached
+      - ./:/app:delegated
-      - bundle:/bundle:delegated
-      - packs:/app/public/packs
       - node_modules:/app/node_modules
-    links:
+      - packs:/app/public/packs
+      - cache:/app/tmp/cache
+    depends_on:
       - postgres
       - redis
+      - webpack
+      - mailhog
     ports:
-      - '3000:3000'
+      - 3000:3000
+    env_file: .env.example
     environment:
-      - REDIS_URL=redis://redis:6379
+      - WEBPACKER_DEV_SERVER_HOST=webpack
-      - POSTGRES_HOST=postgres
+      - NODE_ENV=development
       - RAILS_ENV=development
-      - WEBPACKER_DEV_SERVER_HOST=webpacker
+    entrypoint: docker/entrypoints/rails.sh
     command: ["bundle", "exec", "rails", "s", "-p", "3000", "-b", "0.0.0.0"]
-
+  
-  webpacker:
+  webpack:
-    <<: *server
+    <<: *base
-    command: ./bin/webpack-dev-server
+    build:
-    depends_on:
+      context: .
-      - "server"
+      dockerfile: ./docker/dockerfiles/webpack.Dockerfile
-    ports:
+    image: chatwoot-webpack:development
-      - '3035:3035'
     volumes:
-      - .:/app:cached
+      - ./:/app:delegated
-      - bundle:/bundle
+      - node_modules:/app/node_modules # Node modules shared across containers
-      - node_modules:/app/node_modules
       - packs:/app/public/packs
+      - cache:/app/tmp/cache
+    ports:
+      - "3035" # Webpack dev server
+    env_file: .env.example
     environment:
-      - "NODE_ENV=development"
+      - WEBPACKER_DEV_SERVER_HOST=0.0.0.0
-      - "RAILS_ENV=development"
+      - NODE_ENV=development
-      - "WEBPACKER_DEV_SERVER_HOST=0.0.0.0"
+      - RAILS_ENV=development
+    entrypoint: docker/entrypoints/webpack.sh
+    command: bin/webpack-dev-server
+
   postgres:
     image: postgres:9.6
     restart: always
@@ -69,3 +79,16 @@ services:
       - redis:/data/redis
     ports:
       - '6379:6379'
+
+  mailhog:
+    image: mailhog/mailhog
+    ports:
+      - 1025:1025
+      - 8025:8025
+
+volumes:
+  postgres:
+  redis:
+  packs:
+  node_modules:
+  cache:

docker/Dockerfile

@@ -18,6 +18,7 @@ RUN apt-get update \
     git \
     imagemagick \
     libpq-dev \
+    postgresql-client \
     && curl -L https://deb.nodesource.com/setup_12.x | bash - \
     && curl https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add - \
     && echo 'deb https://dl.yarnpkg.com/debian stable main' > /etc/apt/sources.list.d/yarn.list \
@@ -46,12 +47,4 @@ COPY . /app
 # generate production assets if production environment
 RUN if [ "$RAILS_ENV" = "production" ]; then \
   SECRET_KEY_BASE=precompile_placeholder bundle exec rake assets:precompile; \
-  fi
+  fi
-
-# Add a script to be executed every time the container starts.
-COPY ./docker/entrypoint.sh /usr/bin/
-RUN chmod +x /usr/bin/entrypoint.sh
-ENTRYPOINT ["entrypoint.sh"]
-
-EXPOSE 3000
-CMD ["rails", "server", "-b", "0.0.0.0", "-p", "3000"]

docker/dockerfiles/rails.Dockerfile

@@ -0,0 +1,6 @@
+FROM chatwoot:development
+
+RUN chmod +x docker/entrypoints/rails.sh
+
+EXPOSE 3000
+CMD ["rails", "server", "-b", "0.0.0.0", "-p", "3000"]

docker/dockerfiles/webpack.Dockerfile

@@ -0,0 +1,6 @@
+FROM chatwoot:development
+
+RUN chmod +x docker/entrypoints/webpack.sh
+
+EXPOSE 3035
+CMD ["bin/webpack-dev-server"]

docker/entrypoint.sh

@@ -1,8 +0,0 @@
-#!/bin/bash
-set -e
-
-# Remove a potentially pre-existing server.pid for Rails.
-rm -f /app/tmp/pids/server.pid
-
-# Then exec the container's main process (what's set as CMD in the Dockerfile).
-exec "$@"

docker/entrypoints/rails.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+
+set -x
+
+# Remove a potentially pre-existing server.pid for Rails.
+rm -rf /app/tmp/pids/server.pid
+rm -rf /app/tmp/cache/*
+
+echo "Waiting for postgres to become ready...."
+
+PGPASSWORD=$POSTGRES_PASSWORD
+PSQL="pg_isready -h $POSTGRES_HOST -p 5432 -U $POSTGRES_USERNAME"
+until $PSQL
+do
+  sleep 2;
+done
+
+echo "Database ready to accept connections."
+
+YARN="yarn check --integrity"
+BUNDLE="bundle check"
+
+until $YARN && $BUNDLE
+do
+  sleep 2;
+done
+
+# Execute the main process of the container
+exec "$@"

docker/entrypoints/webpack.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+set -e
+
+rm -rf /app/tmp/pids/server.pid
+rm -rf /app/tmp/cache/*
+
+yarn install --check-files
+
+echo "Waiting for yarn and bundle integrity to match lockfiles...."
+YARN="yarn check --integrity"
+BUNDLE="bundle check"
+
+until $YARN && $BUNDLE
+do
+  sleep 2;
+done
+
+echo "Ready to run webpack development server."
+
+exec "$@"

docs/development/environment-setup/docker.md

@@ -0,0 +1,69 @@
+---
+path: "/docs/installation-guide-docker"
+title: "Docker Setup and Debugging Guide"
+---
+
+# Docker Setup and Debugging Guide
+
+## development environment
+
+```
+docker-compose build
+```
+
+After building the image or each time after destroying the stack you would have to create and migrate the database before you can start the rails server or run rspec tests. 
+
+```
+docker-compose run rails bundle exec rails db:create db:migrate db:seed
+```
+
+### Running the rails app in debug mode (pry and byebug works)
+
+```
+docker-compose run --service-port rails
+```
+
+* Access the rails app frontend by visiting `http://0.0.0.0:3000/` (You can access the website over http for debugging using pry and Byebug here)
+
+* Access Mailhog inbox by visiting `http://0.0.0.0:8025/` (You will receive all emails going out of the application here)
+
+### Running the complete stack in non-debug mode 
+
+```
+docker-compose up
+```
+
+* Access the rails app frontend by visiting `http://0.0.0.0:3000/` (This is web only, you cannot debug using docker-compose up)
+* Access Mailhog inbox by visiting `http://0.0.0.0:8025/` (You will receive all emails going out of the application here)
+
+### Destroying the complete composer stack
+
+```
+docker-compose down
+```
+
+### Running rspec tests
+
+For running the complete rspec tests
+
+```
+docker-compose run rails bundle exec rspec
+```
+
+For running specific test:
+
+```
+docker-compose run rails bundle exec rspec spec/<path-to-file>:<line-number>
+```
+
+## production environment
+
+```
+docker-compose -f docker-compose.production.yaml build
+```
+
+If you want to test the production build locally you would first need to set `SECRET_KEY_BASE` environment variable in your .env.example file and then run the below command:
+
+```
+docker-compose -f docker-compose.production.yaml up
+```

package.json

@@ -7,7 +7,8 @@
     "pretest": "rimraf .jest-cache",
     "test": "jest --no-cache",
     "test:watch": "jest --watch --no-cache",
-    "test:coverage": "jest --no-cache --collectCoverage"
+    "test:coverage": "jest --no-cache --collectCoverage",
+    "webpacker-start": "webpack-dev-server -d --config webpack.dev.config.js --content-base public/ --progress --colors"
   },
   "dependencies": {
     "@babel/polyfill": "^7.6.0",