pvin

You first need to uninstall the ruby installed by Ubuntu with something like sudo apt-get remove ruby.

Then reinstall ruby using rbenv and ruby-build according to their docs:

cd $HOME
sudo apt-get update 
sudo apt-get install git-core curl zlib1g-dev build-essential libssl-dev libreadline-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt1-dev libcurl4-openssl-dev python-software-properties libffi-dev

git clone https://github.com/rbenv/rbenv.git ~/.rbenv
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc

pvin

systemctl status mssql-server

pvin

Encoding

require 'base64'
data = File.open('/home/name/folder/sample-video.mp4').read
encoded = Base64.encode64(data)

Decoding

File.open("/home/name/received/sample.mp4", "wb") do |file|
 file.write(Base64.decode64(encoded))

pvin

a. gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
b. cd /tmp
c. curl -sSL https://get.rvm.io -o rvm.sh
d. cat /tmp/rvm.sh | bash -s stable --rails
e. source /home/username/.rvm/scripts/rvm

pvin

sqlcmd -S localhost -U SA -Q "BACKUP DATABASE web_ilids_development TO DISK = N'/var/opt/mssql/data/web_ilids_development.bak' WITH NOFORMAT, NOINIT, NAME = 'web_ilids_development-full', SKIP, NOREWIND, NOUNLOAD, STATS = 10"

https://docs.microsoft.com/en-us/sql/linux/sql-server-linux-backup-and-restore-database

https://docs.microsoft.com/en-us/sql/linux/sql-server-linux-setup-tools#ubuntu

pvin

Change in config/environments/production.rb
config.assets.compile = true

Change in config/initializers/devise.rb
config.secret_key = '34790ca67ba55291b876053e2de5a248059345fd3994ada01bc4f16a4b272dedcffdee6c71f9a4b3a92773462686c9ee4a0753b02efcc26d14e6ee11cb9fc9c6'

Change in config/secrets.yml
secret_key_base: 32790ca67ba55234b876053e2de5a248059345fd3994ada01bc4f16a4b272dedcffdee6c71f9a4b3a92773462686c9ee4a0753b02efcc26d14e6ee11cb9fc9c6

Configure database.yml with production env

pvin

begin
  ActiveRecord::Base.transaction do
   User.create(name: 'test')
   Role.create(name:'manager')
  end
rescue => e 
  raise ActiveRecord::Rollback
end

pvin

Connect to Server(ssh) 
sudo apt-get install ufw
sudo ufw allow 80 (port http)
sudo ufw allow 443 (port https)
sudo ufw allow 22 (port SSH)
sudo ufw enable
sudo ufw reload
sudo ufw status (will list all open ports)

pvin

login with peer authondication
  sudo -u postgres psql
login with md5


Then type:

sudo -u postgres psql

Then:

pvin

Rspec::
rspec
rspec spec/models
rspec spec/controllers/accounts_controller_spec.rb
rails generate rspec:model
/factories /support /models /controllers /features /views /mailers /routing /helpers

Model spec - behavior of model
require "rails_helper"