[WIP] Dockerising the app

.env

@@ -0,0 +1,6 @@
+GITLAB_KEY=YOUR_KEY
+GITLAB_SECRET=YOUR_SECRET
+GITLAB_ACCESS_TOKEN=YOUR_TOKEN
+
+RAILS_ENV=development
+PORT=3000

Dockerfile

@@ -0,0 +1,16 @@
+FROM ruby:2.7.1
+
+RUN mkdir /app
+WORKDIR /app
+
+RUN gem install bundler:2.1.4
+RUN curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add -
+RUN echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list
+RUN apt-get update -qq && apt-get install -y yarn
+RUN yarn install
+
+
+
+COPY docker-entrypoint.sh docker-entrypoint.sh
+RUN chmod +x docker-entrypoint.sh
+ENTRYPOINT ["/app/docker-entrypoint.sh"]

Gemfile

@@ -29,9 +29,12 @@ gem 'jbuilder', '~> 2.10'
 # Reduces boot times through caching; required in config/boot.rb
 gem 'bootsnap', '>= 1.4.7', require: false
 
+gem 'pg'
+gem 'dotenv-rails'
+
 group :development, :test do
   # Use sqlite3 as the database for Active Record
-  gem 'sqlite3', '~> 1.4'
+  #gem 'sqlite3', '~> 1.4'
   # Call 'byebug' anywhere in the code to stop execution and get a debugger console
   gem 'byebug', platforms: %i[mri mingw x64_mingw]
   gem 'factory_bot_rails', '~> 6.1'
@@ -58,9 +61,6 @@ group :test do
   gem 'webdrivers'
 end
 
-group :production do
-  gem 'pg'
-end
 
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
 gem 'tzinfo-data', platforms: %i[mingw mswin x64_mingw jruby]

Gemfile.lock

@@ -164,6 +164,10 @@ GEM
       rest-client (>= 1.8.0)
     domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)
+    dotenv (2.7.6)
+    dotenv-rails (2.7.6)
+      dotenv (= 2.7.6)
+      railties (>= 3.2)
     erubi (1.9.0)
     excon (0.76.0)
     factory_bot (6.1.0)
@@ -341,7 +345,6 @@ GEM
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
-    sqlite3 (1.4.2)
     terminal-table (1.8.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     thor (1.0.1)
@@ -391,6 +394,7 @@ DEPENDENCIES
   byebug
   capybara (~> 3.33)
   dependabot-omnibus (~> 0.118.8)
+  dotenv-rails
   factory_bot_rails (~> 6.1)
   faker (~> 2.13)
   jbuilder (~> 2.10)
@@ -406,7 +410,6 @@ DEPENDENCIES
   shoulda-matchers (~> 4.0)
   spring
   spring-watcher-listen (~> 2.0.0)
-  sqlite3 (~> 1.4)
   turbolinks (~> 5.2, >= 5.2.1)
   tzinfo-data
   web-console (>= 3.3.0)

README.md

@@ -52,16 +52,49 @@ We’re going to use  [rbenv](https://github.com/sstephenson/rbenv)  to install
     ```
 **Environment variables**
 
-There is a file called `.envrc` in the root directory of this project with all the environment variables set to empty value. You can set the correct values as per the following options:
+To generate your GITLAB_KEY and GITLAB_SECRET sign in to your gitlab and go to 'User Settings > Applications' 
+```
+ -provide a suitable name
+ -redirect URI = https://<your_hostname>/auth/gitlab/callback
+ -check all the necessary access
+ -click on 'Save Application'
+```
 
-    export GITLAB_KEY=your-key
-    export GITLAB_SECRET=your-secret
+ Doing this will generate your application ID and SECRET which will be your KEY and SECRET respectively.
 
-    export GITHUB_ACCESS_TOKEN=your-token
+ To generate your GITLAB_ACCESS_TOKEN sign in to your gitlab and go to 'User Settings > Access Tokens' 
 
-    export RAILS_ENV=development
-    export PORT=3000
+```
+ -provide a suitable name
+ -keep the date section blank if you want to use the toke indefinitely
+ -check all the necessary access
+ -click on 'Create Personal Access Token'
+```
+ Doing this will generate your Access Token.
+
+There is a file called `.env` in the root directory of this project with all the environment variables set to empty value. You can set the correct values as per the following options:
+
+    GITLAB_KEY=your-key
+    GITLAB_SECRET=your-secret
+
+    GITLAB_ACCESS_TOKEN=your-token
+
+    RAILS_ENV=development
+    PORT=3000
 
+**Starting Docker**
+
+Make sure to be in the 'gitlab-dependabot-example' folder then follow the below steps
+
+```
+$ docker-compose build
+$ docker-compose run web bash
+* it will bash in the container *
+# rake db:create
+# rake db:migrate
+# exit
+$ docker-compose up
+```
 
 **Test on LocalHost**
 
@@ -71,6 +104,10 @@ Make sure your are in the root directory and start the web server:
 
 Run with `—help` or `-h` for options.
 
-**Ps:** you'll need to make your `url` public inorder for Gitlab OAuth to work. Try using `ngrok` or some other service to test locally.
+**Ps:** 
+
+you'll need to make your `url` public inorder for Gitlab OAuth to work. Try using `ngrok` or some other service to test locally. 
+
+Make sure 'merge requests' in gitlab repository settings is enabled.
 
  Go to http://localhost:3000 and Play around!

config/database.yml

@@ -4,24 +4,42 @@
 #   Ensure the SQLite 3 gem is defined in your Gemfile
 #   gem 'sqlite3'
 #
-default: &default
-  adapter: sqlite3
-  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
-  timeout: 5000
-
-development:
-  <<: *default
-  database: db/development.sqlite3
+#default: &default
+#  adapter: sqlite3
+#  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
+#  timeout: 5000
+#
+#development:
+#  <<: *default
+#  database: db/development.sqlite3
 
 # Warning: The database defined as "test" will be erased and
 # re-generated from your development database when you run "rake".
 # Do not set this db to the same as development or production.
-test:
-  <<: *default
-  database: db/test.sqlite3
+#test:
+#  <<: *default
+#  database: db/test.sqlite3
+#
+#production:
+#  adapter: postgresql
+#  database: project_pipe_production
+#  pool: 5
+#  timeout: 5000
+
+#Below config is for docker for deploying otherwise un comment the production test default and development section
 
-production:
+development:
+  adapter: postgresql
+  host: db
+  database: sample_app
+  username: postgres
+  password: password1234
+
+test:
   adapter: postgresql
-  database: project_pipe_production
-  pool: 5
-  timeout: 5000
+  host: db
+  database: sample_app_test
+  username: postgres
+  password: password1234
+
+

docker-compose.yml

@@ -0,0 +1,26 @@
+version: '3.8'
+services:
+  web:
+    build: .
+    command: bundle exec rails s -p 3000 -b '0.0.0.0'
+    volumes:
+      - .:/app
+      - bundle-volume:/usr/local/bundle
+    ports:
+      - "3000:3000"
+    depends_on:
+      - db
+
+
+  db: 
+    image: postgres:12
+    volumes: 
+      - db-volume:/var/lib/postgresql/data
+    ports:
+      - "5432:5432"
+    environment:
+      POSTGRES_PASSWORD: password1234
+
+volumes:
+  bundle-volume:
+  db-volume:

docker-entrypoint.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+set -e
+
+bundle install;
+
+rm -f /app/tmp/pids/server.pid
+
+exec "$@"