added Dockerfile and docker-compose.yml

Dockerfile

@@ -0,0 +1,37 @@
+# # Select ubuntu as the base image
+FROM coreapps/ruby2.3
+
+# Install essential Linux packages
+RUN apt-get update -qq && apt-get install -y build-essential libpq-dev postgresql-client nodejs
+
+
+
+# Define where our application will live inside the image
+ENV RAILS_ROOT /var/www/consul
+
+# Create application home. App server will need the pids dir so just create everything in one shot
+RUN mkdir -p $RAILS_ROOT/tmp/pids
+
+# Set our working directory inside the image
+WORKDIR $RAILS_ROOT
+
+# Use the Gemfiles as Docker cache markers. Always bundle before copying app src.
+# (the src likely changed and we don't want to invalidate Docker's cache too early)
+# http://ilikestuffblog.com/2014/01/06/how-to-skip-bundle-install-when-deploying-a-rails-app-to-docker/
+COPY Gemfile Gemfile
+
+COPY Gemfile.lock Gemfile.lock
+
+# Prevent bundler warnings; ensure that the bundler version executed is >= that which created Gemfile.lock
+RUN gem install bundler
+
+# Finish establishing our Ruby enviornment
+RUN bundle install --full-index
+
+# Copy the Rails application into place
+COPY . .
+
+# Define the script we want run once the container boots
+# Use the "exec" form of CMD so our script shuts down gracefully on SIGTERM (i.e. `docker stop`)
+#CMD [ "config/containers/app_cmd.sh" ]
+CMD ["bundle", "exec", "rails", "server", "-b", "0.0.0.0"]

Gemfile

@@ -92,4 +92,5 @@ group :development do
   gem 'web-console', '~> 3.3.0'
 end
 
-eval_gemfile './Gemfile_custom'
+#this is crashing with the Dockerfile
+#eval_gemfile './Gemfile_custom'

config/database.yml.example

@@ -1,10 +1,12 @@
 default: &default
   adapter: postgresql
   encoding: unicode
-  host: localhost
+  #host: localhost
+  host: database #<--the name of the db in the docker-compose
   pool: 5
-  username:
-  password:
+  port: 5432
+  username: postgres
+  password: <%= ENV['POSTGRES_PASSWORD'] %>
 
 development: &development
   <<: *default

docker-compose.yml

@@ -0,0 +1,28 @@
+# service configuration for our database
+database:
+
+  # use the preferred version of the official Postgres image
+  # see https://hub.docker.com/_/postgres/
+  image: postgres:9.4.5
+
+  # persist the database between containers by storing it in a volume
+  volumes:
+    - docker-example-postgres:/var/lib/postgresql/data
+
+# service configuration for our dockerized Rails app
+app:
+
+  # use the Dockerfile next to this file
+  build: .
+
+  # rely on the RAILS_ENV value of the host machine
+  # environment:
+  #RAILS_ENV: $RAILS_ENV
+
+  # makes the app container aware of the DB container
+  links:
+    - database
+
+  # expose the port we configured Unicorn to bind to
+  ports:
+    - "3000:3000"