Add Docker support for development environment

.env.docker

@@ -0,0 +1,19 @@
+SECRET_KEY_BASE=djiv7839b9j69ew89gf9n5495rh9bvksmk23i8cv9oi54kju1gfi
+SITE_HOST=localhost:8282
+MAILER_DELIVERY_METHOD=smtp
+RAILS_SERVE_STATIC_FILES=true
+SMTP_PORT=1025
+LOG_RECAPTCHA_RESPONSES=true
+RECAPTCHA_SITE_KEY=
+RECAPTCHA_SECRET_KEY=
+SERVER_TIME_ZONE=UTC
+RAILS_LOG_LEVEL=info
+RAILS_LOG_TO_STDOUT=true
+CAPTCHA_GATEWAY_PERMISSION_TIME=30000
+DATABASE_DEV_USERNAME=lumen
+DATABASE_DEV_PASSWORD=so-secret
+DATABASE_DEV_DB_NAME=lumen_dev
+DATABASE_DEV_HOST=postgres
+DATABASE_DEV_PORT=5432
+ELASTICSEARCH_URL=elasticsearch
+TEST_CLUSTER_COMMAND=/elasticsearch_test/elasticsearch-7.17.0/bin/elasticsearch

Dockerfile

@@ -0,0 +1,45 @@
+FROM ruby:3.0.2
+
+WORKDIR /root
+
+# Google-chrome needs an additional repository
+RUN wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - \
+    && echo 'deb http://dl.google.com/linux/chrome/deb/ stable main' >> /etc/apt/sources.list
+RUN wget https://chromedriver.storage.googleapis.com/98.0.4758.102/chromedriver_linux64.zip \
+    && unzip chromedriver_linux64.zip \
+    && mv chromedriver /usr/local/share/ \
+    && chmod +x /usr/local/share/chromedriver \
+    && ln -s /usr/local/share/chromedriver /usr/local/bin/chromedriver \
+    && ln -s /usr/local/share/chromedriver /usr/bin/chromedriver
+
+RUN apt-get update && apt-get -y install tzdata git build-essential patch ruby-dev zlib1g-dev liblzma-dev default-jre sudo google-chrome-stable vim nano
+
+# Container user and group
+ARG USERNAME=lumen
+ARG USER_UID=1000
+ARG USER_GID=$USER_UID
+
+# Create a user
+RUN groupadd --gid $USER_GID $USERNAME \
+    && useradd --uid $USER_UID --gid $USER_GID -m $USERNAME \
+    && echo $USERNAME ALL=\(root\) NOPASSWD:ALL > /etc/sudoers.d/$USERNAME \
+    && chmod 0440 /etc/sudoers.d/$USERNAME
+
+USER $USERNAME
+
+# Install and cache gems
+WORKDIR /
+COPY Gemfile* /tmp/
+WORKDIR /tmp
+RUN bundle install
+
+# Download a standalone version of Elasticsearch, will be used by rspec
+WORKDIR /elasticsearch_test
+RUN sudo wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.17.0-linux-x86_64.tar.gz && sudo tar -xvf elasticsearch-7.17.0-linux-x86_64.tar.gz
+RUN sudo chown -R $USERNAME:$USERNAME /elasticsearch_test
+
+# Code mounted as a volume
+WORKDIR /app
+
+# Just to keep the containder running
+CMD (while true; do sleep 1; done;)

README.md

@@ -23,24 +23,80 @@ Development
 * Mail server (SMTP, Sendmail)
 * ChromeDriver (used only by test runner)
 
-#### Setup
+#### Using Docker
+
+The easiest way to start is to use `Docker`. Make sure you have the `Docker Engine` and `docker-compose` installed.
+
+Clone the repository.
+
+```
+cp config/database.yml.docker config/database.yml
+```
+
+```
+cp .env.docker .env
+```
+
+```
+docker-compose up
+```
+
+```
+docker-compose exec website bash
+```
+
+```
+rake db:drop db:create db:migrate
+```
+
+```
+rake comfy:cms_seeds:import[lumen_cms,lumen_cms]
+```
+
+```
+rake db:seed
+```
+
+```
+rails s -b 0.0.0.0
+```
+
+Lumen will be available at `http://localhost:8282`.
+
+#### Manual setup
 
 By default, the app will try to connect to Elasticsearch on `http://localhost:9200`. If you want to use a different host set the `ELASTICSEARCH_URL` environment variable.
 
-    $ bundle install
-    $ cp config/database.yml.example config/database.yml
-      (edit database.yml as you wish)
-      (ensure PostgreSQL and Elasticsearch are running)
-    $ rails db:setup
-    $ rails lumen:set_up_cms
+```
+bundle install
+```
+
+```
+cp config/database.yml.example config/database.yml
+```
+
+(edit database.yml as you wish)  
+(ensure PostgreSQL and Elasticsearch are running)
+
+```
+rails db:setup
+```
+
+```
+rails lumen:set_up_cms
+```
 
-#### Running the app
+###### Running the app
 
-    $ rails s
+```
+rails s
+```
 
-#### Viewing the app
+###### Viewing the app
 
-    $BROWSER 'http://localhost:3000'
+```
+$BROWSER 'http://localhost:3000'
+```
 
 You can customize behavior during seeding (db:setup) with a couple of environment variables:
 

config/database.yml.docker

@@ -0,0 +1,32 @@
+default: &default
+  adapter: postgresql
+  encoding: utf8
+  min_messages: warning
+  pool: 5
+  timeout: 5000
+
+test:
+  <<: *default
+  username: <%= ENV['DATABASE_DEV_USERNAME'] %>
+  password: <%= ENV['DATABASE_DEV_PASSWORD'] %>
+  host: <%= ENV['DATABASE_DEV_HOST'] %>
+  port: <%= ENV['DATABASE_DEV_PORT'].to_i %>
+  database: lumen_test
+
+development:
+  <<: *default
+  username: <%= ENV['DATABASE_DEV_USERNAME'] %>
+  password: <%= ENV['DATABASE_DEV_PASSWORD'] %>
+  database: <%= ENV['DATABASE_DEV_DB_NAME'] %>
+  host: <%= ENV['DATABASE_DEV_HOST'] %>
+  port: <%= ENV['DATABASE_DEV_PORT'].to_i %>
+  timeout: <%= (ENV['DATABASE_DEV_TIMEOUT'] || 5000).to_i %>
+
+production:
+  <<: *default
+  username: <%= ENV['DATABASE_PROD_USERNAME'] %>
+  password: <%= ENV['DATABASE_PROD_PASSWORD'] %>
+  database: <%= ENV['DATABASE_PROD_DB_NAME'] %>
+  host: <%= ENV['DATABASE_PROD_HOST'] %>
+  port: <%= ENV['DATABASE_PROD_PORT'].to_i %>
+  timeout: <%= (ENV['DATABASE_PROD_TIMEOUT'] || 5000).to_i %>

config/database.yml.example

@@ -13,4 +13,3 @@ test:
   pool: 5
   username: postgres
   password: postgres
-

docker-compose.yml

@@ -0,0 +1,50 @@
+version: '2'
+
+services:
+  postgres:
+    image: 'postgres:13.6-alpine'
+    volumes:
+      - 'postgres:/var/lib/postgresql/data'
+    env_file:
+      - '.env'
+    environment:
+      POSTGRES_USER: ${DATABASE_DEV_USERNAME}
+      POSTGRES_PASSWORD: ${DATABASE_DEV_PASSWORD}
+
+  website:
+    depends_on:
+      - 'postgres'
+    build: .
+    ports:
+      - '8282:3000'
+      - '1080:1080'
+    volumes:
+      - '.:/app'
+    env_file:
+      - '.env'
+
+  elasticsearch:
+    image: elasticsearch:7.17.0
+    environment:
+      - http.host=0.0.0.0
+      - transport.host=0.0.0.0
+      - "ES_JAVA_OPTS=-Xms2g -Xmx2g"
+      - discovery.type=single-node
+    volumes:
+      - esdata:/usr/share/elasticsearch/data
+    ports:
+      - 9200:9200
+      - 9300:9300
+    ulimits:
+      memlock:
+        soft: -1
+        hard: -1
+      nofile:
+        soft: 65536
+        hard: 65536
+    mem_limit: 4g
+
+volumes:
+  postgres:
+  esdata:
+  esdata_test:

spec/support/capybara.rb

@@ -19,6 +19,7 @@
   --incognito
   --mute-audio
   --remote-debugging-port=9222
+  --no-sandbox
 )
 
 chrome_options = Selenium::WebDriver::Chrome::Options.new