- \n
- Ubuntu 18.04 LTS<\/li>\n
- Root privileges<\/li>\n<\/ul>\n
What we will do?<\/h2>\n
- \n
- Install RVM (Ruby Version Manager)<\/li>\n
- Setup Ruby<\/li>\n
- Install Nodejs<\/li>\n
- Configure Ruby Gem<\/li>\n
- Install Ruby on Rails<\/li>\n
- Setup PostgreSQL Database for Rails Development<\/li>\n
- Create Your First App with Rails and PostgreSQL<\/li>\n<\/ol>\n
Step 1 – Install RVM (Ruby Version Manager)<\/h2>\n
RVM (Ruby Version Manager) is a command-line tool based on Bash and Ruby to manage the ruby installation. RVM allows you to install and configure multiple ruby versions on one system.<\/p>\n
The first step we will do is to install the rvm packages using the installer script.<\/p>\n
Add the rvm key to the server.<\/p>\n
gpg –keyserver hkp:\/\/keys.gnupg.net –recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 \\
7D2BAF1CF37B13E2069D6956105BD0E739499BDB<\/p>\nInstall the rvm stable version by running the command below.<\/p>\n
curl -sSL https:\/\/get.rvm.io | bash -s stable –ruby<\/p>\n
The command will automatically install packages required, and install the latest stable rvm version.<\/p>\n
After the installation is complete, run the following command.<\/p>\n
source \/usr\/local\/rvm\/scripts\/rvm<\/p>\n
![\"Install](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/08\/how-to-install-ruby-on-rails-on-ubuntu-18-04-lts.png\" "\\"\\"")
<\/a><\/p>\nNow you can use the rvm command to manage the ruby version.<\/p>\n
rvm version<\/p>\n
Step 2 – Setup Ruby Latest Version<\/h2>\n
The latest version of ruby at this day is Ruby 2.5.1, and it will be automatically installed during the rvm installation, when there is no ruby package on the system.<\/p>\n
In this step, we will set up the default ruby version on the Ubuntu system.<\/p>\n
Update the rvm to the latest stable version.<\/p>\n
rvm get stable –autolibs=enable
usermod -a -G rvm root<\/p>\nNow check all available ruby versions.<\/p>\n
rvm list known<\/p>\n
And you will get a lot of available versions of ruby – install the latest stable version Ruby 2.5.1 using the rvm command as shown below.<\/p>\n
rvm install ruby-2.5.1<\/p>\n
After all installation is complete, make the ruby 2.5.1 as a default version on the Ubuntu system.<\/p>\n
rvm –default use ruby-2.5.1<\/p>\n
Check the Ruby version.<\/p>\n
ruby -v<\/p>\n
Now you will see ruby 2.5.1 is default ruby version on the Ubuntu 18.04 system.<\/p>\n
![\"Setup](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/08\/how-to-install-ruby-on-rails-on-ubuntu-18-04-lts-1.png\" "\\"\\"")
<\/a><\/p>\nStep 3 – Install Nodejs<\/h2>\n
Ruby on Rails requires a JavaScript runtime to compile the Rails asset pipeline. And for the Rails development on Ubuntu Linux, it’s best to install and using Nodejs as the Javascript runtime.<\/p>\n
Add the nodejs nodesource repository to the system.<\/p>\n
curl -sL https:\/\/deb.nodesource.com\/setup_10.x | sudo -E bash –<\/p>\n
Install the latest version nodejs 10 and some additional packages using the apt command below.<\/p>\n
sudo apt install -y nodejs
sudo apt install gcc g++ make<\/p>\nThe nodejs 10 has been installed on Ubuntu 18.04 system.<\/p>\n
Step 4 – Configure Ruby Gem<\/h2>\n
RubyGems is a Ruby Package Manager, coming with the gem command-line tool. It’s automatically installed when we install Ruby on the system.<\/p>\n
Update gem to the latest version and check it.<\/p>\n
gem update –system
gem -v<\/p>\nNote:<\/strong><\/p>\n
This is optional, we can disable gem to install documentation on every ruby package installation. Simply by adding the configuration to the ‘.gemrc’ configuration file.<\/p>\n
echo “gem: –no-document” >> ~\/.gemrc<\/p>\n
Step 5 – Install Ruby on Rails<\/h2>\n
In this tutorial, we will be using the latest stable Ruby on Rails 5.2.0. We will install Rails using the gem ruby package manager.<\/p>\n
Install Ruby on Rails 5.2.0 using the command below.<\/p>\n
gem install rails -v 5.2.0<\/p>\n
After the installation is complete, check the rails version.<\/p>\n
rails -v<\/p>\n
And following should the result.<\/p>\n
![\"Install](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/08\/how-to-install-ruby-on-rails-on-ubuntu-18-04-lts-2.png\" "\\"\\"")
<\/a><\/p>\nRuby on Rails 5.2.0 has been installed on Ubuntu 18.04 LTS.<\/p>\n
Step 6 – Setup PostgreSQL Database for Rails Development<\/h2>\n
By default, Ruby on Rails is using the SQLite database. It supports many databases system, including MySQL, SQLite, and PostgreSQL. And for this guide, we will be using PostgreSQL.<\/p>\n
Install the PostgreSQL database using the apt command below.<\/p>\n
sudo apt install postgresql postgresql-contrib libpq-dev -y<\/p>\n
After all installation is complete, start the Postgres service and enable it to launch everytime at system boot.<\/p>\n
systemctl start postgresql
systemctl enable postgresql<\/p>\nNext, we will configure a password for the Postgres user, and create a new user for the Rails installation.<\/p>\n
Login to the ‘postgres’ user and run the Postgres shell.<\/p>\n
su – postgres
psql<\/p>\nChange the Postgres password using the query below.<\/p>\n
\\password postgres<\/p>\n
Type your password and the password for postgres user has been added.<\/p>\n
Now we will create a new role for our rails installation. We will create a new role named ‘rails_dev’ with the privilege of creating the database and with the password ‘aqwe123’.<\/p>\n
Run the Postgres query below.<\/p>\n
create role rails_dev with createdb login password ‘aqwe123’;<\/p>\n
Now check all available roles on the system.<\/p>\n
\\du<\/p>\n
And you will get the ‘rails_dev’ role on the list.<\/p>\n
![\"Setup](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/08\/how-to-install-ruby-on-rails-on-ubuntu-18-04-lts-3.png\" "\\"\\"")
<\/a><\/p>\nPostgreSQL installation and configuration for Rails Development has been completed.<\/p>\n
Step 7 – Create Your First App with Rails and PostgreSQL<\/h2>\n
Ruby on Rails provides a command-line ‘rails’ for bootstrapping our first rails application.<\/p>\n
Create a new project ‘myapp’ with default database ‘PostgreSQL’ by running rails command below.<\/p>\n
rails new myapp -d postgresql<\/p>\n
Now you will see the ‘myapp’ directory, go to that directory and edit the database configuration file ‘database.yml’ using vim <\/a>editor.<\/p>\n
cd myapp\/
vim config\/database.yml<\/p>\nThere are different configuration sections for each setup – Development, Testing, and Production.<\/p>\n
In the development section, uncomment those line and change the value as below.<\/p>\n
username: rails_dev \npassword: aqwe123 \nhost: localhost \nport 5423<\/pre>\n
For the testing section, paste those configurations under the testing section.<\/p>\n
host: localhost port: 5432 username: rails_dev password: aqwe123<\/pre>\n
Save and exit.<\/p>\n
Now generate the database and make sure there is no error.<\/p>\n
rails db:setup
rails db:migrate<\/p>\nWhen all setup is complete, start the default puma rails web server using the command below.<\/p>\n
rails s -b 192.168.1.10 -p 8080<\/p>\n
The first rails project will be running on the IP address ‘192.168.1.10’ with port 8080.<\/p>\n
![\"Create](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/08\/how-to-install-ruby-on-rails-on-ubuntu-18-04-lts-4.png\" "\\"\\"")
<\/a><\/p>\nOpen your web browser and type the server IP address on the address bar.<\/p>\n
http:\/\/192.168.1.10:8080\/<\/a><\/p>\n
You will get the default rails project homepage as below.<\/p>\n
![\"Ruby](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/08\/how-to-install-ruby-on-rails-on-ubuntu-18-04-lts-5.png\" "\\"\\"")
<\/a><\/p>\nNext, we will test to create simple CRUD with PostgreSQL database on rails.<\/p>\n
Run the rails command below.<\/p>\n
rails g scaffold Post title:string body:text
rake db:migrate<\/p>\nRun the puma web server again.<\/p>\n
rails s -b 192.168.1.10 -p 8080<\/p>\n
And open the web browser with the URL below.<\/p>\n
http:\/\/192.168.1.10:8080\/posts\/<\/a><\/p>\n
Now you will get the simple CRUD form.<\/p>\n
![\"Test](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/08\/how-to-install-ruby-on-rails-on-ubuntu-18-04-lts-6.png\" "\\"\\"")
<\/a><\/p>\nAnd following is my result after creating a simple post.<\/p>\n
![\"\"](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/08\/how-to-install-ruby-on-rails-on-ubuntu-18-04-lts-7.png\" "\\"\\"")
<\/a><\/p>\nRuby on Rails installation with PostgreSQL database on Ubuntu 18.04 LTS has been completed successfully.<\/p>\n
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<\/a>\n<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"Ruby on Rails (RoR) is an open source web application framework, published under the MIT License. It is a server-side web application framework that follows the MVC (Model-View-Controller) concept. Rails are providing default structures for the database, web service, and web pages. More than 3000 developers have contributed code to the Rails framework and there […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[36],"tags":[],"class_list":["post-5895","post","type-post","status-publish","format-standard","hentry","category-36"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/5895","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=5895"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/5895\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=5895"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=5895"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=5895"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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