Ruby on Rails development setup on Ubuntu 14.04.md

Ruby on Rails development setup on Ubuntu 14.04

Create new user

https://www.digitalocean.com/community/tutorials/how-to-create-a-sudo-user-on-ubuntu-quickstart

# Create new user with sudo
adduser develop
usermod -aG sudo develop

# Configure sudo for call it without password
# http://askubuntu.com/questions/235084/how-do-i-remove-ubuntus-password-requirement

# Edit the sudoers file:
sudo visudo

# Find this line:
sudo ALL=(ALL) ALL

# Change the line:
sudo ALL=(ALL) NOPASSWD: ALL

# Copy authorized keys
mkdir /home/develop/.ssh
cp ~/.ssh/authorized_keys /home/develop/.ssh/authorized_keys
chown -R develop:develop /home/develop/.ssh

Install rbenv and ruby

https://www.digitalocean.com/community/tutorials/how-to-install-ruby-on-rails-with-rbenv-on-ubuntu-14-04

# System update
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

# Install rbenv
git clone git://github.com/sstephenson/rbenv.git .rbenv
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile
echo 'eval "$(rbenv init -)"' >> ~/.bash_profile

# Install ruby-build
git clone git://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build
echo 'export PATH="$HOME/.rbenv/plugins/ruby-build/bin:$PATH"' >> ~/.bash_profile
source ~/.bash_profile

# Check rbenv
rbenv -v

# Install ruby
rbenv install -v 2.2.3
rbenv global 2.2.3

# Config gem
echo "gem: --no-document" > ~/.gemrc

# Install bundler
gem install bundler

# Install Javascript Runtime
sudo add-apt-repository ppa:chris-lea/node.js
sudo apt-get install nodejs

Install PostgreSQL

https://www.digitalocean.com/community/tutorials/how-to-install-and-use-postgresql-on-ubuntu-14-04 https://www.howtoforge.com/tutorial/how-to-install-postgresql-95-on-ubuntu-12_04-15_10/

# Add the PostgreSQL repository
sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/ `lsb_release -cs`-pgdg main" >> /etc/apt/sources.list.d/pgdg.list'
wget -q https://www.postgresql.org/media/keys/ACCC4CF8.asc -O - | sudo apt-key add -
sudo apt-get update 

# Install PostgreSQL
sudo apt-get install postgresql postgresql-contrib

# Switch to postgres user
sudo -i -u postgres

# Enter to postgres console
psql

# Create new postgres user
CREATE USER username WITH PASSWORD 'password';
ALTER USER username CREATEUSER CREATEDB;

# Change connect postgres access
sudo vi /etc/postgresql/9.5/main/pg_hba.conf

# Replace it
local   all             all                                     md5

# Restart it
sudo /etc/init.d/postgresql restart

# Install it for pg gem support
sudo apt-get install libpq-dev

Install and configure Nginx

https://www.digitalocean.com/community/tutorials/how-to-install-nginx-on-ubuntu-14-04-lts

# Install nginx
sudo apt-get install nginx

# Change default config
sudo vi /etc/nginx/sites-enabled/default

# Restart it
sudo service nginx restart

Simple nginx config

upstream app {
    # Path to Puma SOCK file, as defined previously
    server unix://srv/servername/shared/sockets/puma.sock fail_timeout=0;
}

server {
    listen 80;
    server_name servername;

    # listen 443 ssl;

    # ssl_certificate /home/username/ssl/servicename.chained.crt;
    # ssl_certificate_key /home/username/ssl/server.key;

    root /srv/servername/current/public;

    try_files $uri/index.html $uri @app;

    location @app {
        proxy_pass http://app;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_redirect off;
    }

    error_page 500 502 503 504 /500.html;
    client_max_body_size 4G;
    keepalive_timeout 10;
}

Config project directory

sudo mkdir -p "/srv/servername/" && sudo chown -R develop:develop "/srv/servername/"

Setup and deploy application from local machine

mina setup
mina deploy

Setup puma

vi /srv/servername/shared/config/puma.rb
mkdir /srv/servername/shared/sockets
mkdir /srv/servername/shared/pids

Simple puma config

# Change to match your CPU core count
workers 1

# Min and Max threads per worker
threads 1, 6

app_dir = "/srv/servername"
shared_dir = "#{app_dir}/shared"

# Default to production
rails_env = ENV['RAILS_ENV'] || "production"
environment rails_env

# Set up socket location
bind "unix://#{shared_dir}/sockets/puma.sock"

# Logging
stdout_redirect "#{shared_dir}/log/puma.stdout.log", "#{shared_dir}/log/puma.stderr.log", true

# Set master PID and state locations
pidfile "#{shared_dir}/pids/puma.pid"
state_path "#{shared_dir}/pids/puma.state"
activate_control_app

on_worker_boot do
  require "active_record"
  ActiveRecord::Base.connection.disconnect! rescue ActiveRecord::ConnectionNotEstablished
  ActiveRecord::Base.establish_connection(YAML.load_file("#{app_dir}/current/config/database.yml")[rails_env])
end

Install and configure Runit

# Install runit
sudo apt-get install runit

# Create service
cd /etc/sv
sudo mkdir servicename
cd servicename
sudo touch run
sudo chmod 775 run
sudo vi run

# Create symlink and run service
sudo ln -s /etc/sv/servicename /etc/service/servicename

# Check log for errors
sudo tailf /var/log/upstart/runsvdir.log

Simple runit config

#!/bin/bash
exec 2>&1

export RBENV_ROOT="/home/develop/.rbenv"
export PATH="/home/develop/.rbenv/bin:$PATH"
eval "$(rbenv init -)"

export RAILS_ENV=production

CMD="bundle exec puma -C config/puma.rb"

cd /srv/servername/current
exec chpst -u "develop:develop" $CMD

Configure Logrotate

# Check logrotate
logrotate

# Change config
sudo vi /etc/logrotate.conf

# Force run it
sudo logrotate -f /etc/logrotate.conf

Simple logrotate config

/srv/servername/current/log/puma.stdout.log {
  size 100M
  rotate 5
  compress
  delaycompress
  missingok
  notifempty
  create 644 username username
}

Install Redis

https://www.digitalocean.com/community/tutorials/how-to-configure-a-redis-cluster-on-ubuntu-14-04

sudo add-apt-repository ppa:chris-lea/redis-server
sudo apt-get update
sudo apt-get install redis-server

# Check that Redis is up and running:
redis-benchmark -q -n 1000 -c 10 -P 5

Imagemagick

sudo apt-get install imagemagick