Ubuntu 16.04.4 x64, Ruby 2.5.1, Rails 5.2.0, Postgresql, Capistrano 3, Puma. Sidekiq, Nginx

Capfile

require_relative 'config/application'
require 'capistrano/setup'
require "capistrano/scm/git"
require 'capistrano/deploy'
require 'capistrano/nginx'
require 'capistrano/puma'
require 'capistrano/puma/nginx'
require "capistrano/chruby"
require 'capistrano/rails'
require 'capistrano/rails/db'
require 'sshkit/sudo'

install_plugin Capistrano::Nginx
install_plugin Capistrano::SCM::Git
install_plugin Capistrano::Puma  # Default puma tasks
install_plugin Capistrano::Puma::Nginx  # if you want to upload a nginx site template
Dir.glob('lib/capistrano/tasks/*.rake').each { |r| import r }

deploy.rb

# config valid for current version and patch releases of Capistrano
lock "~> 3.11.0"

set :user, 'deployer'
set :application, "biteklif"
set :branch, "develop"
set :repo_url, "git@github.com:cihad/MYAPP.git"
set :deploy_to, "/home/deployer/apps/MYAPP"
set :pty, true

# https://github.com/capistrano/rails#usage
set :rails_env, 'production'
set :migration_role, :app
set :assets_manifests, ['app/assets/config/manifest.js']
set :keep_assets, 2
append :linked_files, "config/master.key"
append :linked_dirs, "log", "tmp/pids", "tmp/cache", "tmp/sockets", "public/system", 'public/uploads'

# https://github.com/capistrano/chruby#usage
set :chruby_ruby, "ruby-2.5.1"

# https://github.com/seuros/capistrano-puma
set :puma_conf, "#{shared_path}/config/puma.rb"
set :nginx_ssl_certificate, "/etc/letsencrypt/live/mysite.com/fullchain.pem"
set :nginx_ssl_certificate_key, "/etc/letsencrypt/live/mysite.com/privkey.pem"
set :nginx_use_ssl, true

# https://github.com/platanus/capistrano3-nginx#usage
set :app_server_socket, "#{shared_path}/tmp/sockets/#{fetch :application}.sock"

namespace :deploy do
  before 'check:linked_files', 'puma:config'
  before 'check:linked_files', 'puma:nginx_config'
  before 'deploy:migrate', 'deploy:db:create'
  after 'puma:smart_restart', 'nginx:restart'
end

Gemfile

group :development do
  # Access an interactive console on exception pages or by calling 'console' anywhere in the code.
  gem 'web-console', '>= 3.3.0'
  gem 'listen', '>= 3.0.5', '< 3.2'
  # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
  gem 'spring'
  gem 'spring-watcher-listen', '~> 2.0.0'
  gem "capistrano", "~> 3.10", require: false
  gem "capistrano-rails", "~> 1.4", require: false
  gem 'capistrano-chruby'
  gem 'capistrano3-nginx', github: "treenewbee/capistrano3-nginx"
  gem 'capistrano3-puma', '~> 3.1'
  gem 'capistrano-rails-db'
  gem 'sshkit-sudo'
end

gistfile1.txt

Ubuntu 16.04.4 x64
ruby 2.5.1
rails 5.2.0
capistrano ~3
puma
sidekiq
postgresql
redis
nginx

cihad: local computer
root: server root user
deployer: server deployer user
SERVERIPADRESS = you can use your server' ip address or domain name
MYAPP = your application directory name like /home/apps/MYAPP/current





############### START ##################
cihad$ ssh root@SERVERIPADDRESS

root$ apt-get update
root$ apt-get upgrade
root$ adduser deployer
root$ adduser deployer sudo
root$ su deployer
deployer$ exit




root$ nano /etc/ssh/sshd_config
*********************************NANO**********************************
# ...
PasswordAuthentication yes
# ...
*********************************NANO**********************************
root$ service ssh restart
root$ exit




cihad$ ssh-keygen
*********************************TERMINAL**********************************
Generating public/private rsa key pair.
Enter file in which to save the key (/home/cihad/.ssh/id_rsa): ~/.ssh/id_rsa_digitalocean
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in id_rsa_digitalocean.
Your public key has been saved in id_rsa_digitalocean.pub.
The key fingerprint is:
SHA256:twSH4fnzhlxqFlLDQNtC2QVgTNvHnisp+lOfGjA4AWg cihad@dell-xps-13
The key's randomart image is:
+---[RSA 2048]----+
|   ..  +O+.o.    |
|  E  . +o@..     |
| .    . O B o    |
|       o * + .   |
|      o S * +    |
|       . B.X .   |
|        ..@.+.   |
|       ..+ +o    |
|      ......     |
+----[SHA256]-----+
*********************************TERMINAL**********************************

cihad$ ssh-copy-id -i ~/.ssh/id_rsa_digitalocean root@SERVERIPADDRESS
cihad$ ssh-copy-id -i ~/.ssh/id_rsa_digitalocean deployer@SERVERIPADDRESS
# Now you can login with no password
cihad$ ssh deployer@SERVERIPADDRESS




deployer$ sudo apt-get -y install git-core curl zlib1g-dev build-essential libssl-dev libreadline-dev libyaml-dev libxml2-dev libxslt1-dev libcurl4-openssl-dev python-software-properties libffi-dev



# INSTALLING RUBY with Ruby Install
# https://github.com/postmodern/ruby-install#install
deployer$ wget -O ruby-install-0.6.1.tar.gz https://github.com/postmodern/ruby-install/archive/v0.6.1.tar.gz
deployer$ tar -xzvf ruby-install-0.6.1.tar.gz
deployer$ cd ruby-install-0.6.1/
deployer$ sudo make install
*********************************TERMINAL**********************************
[sudo] password for deployer: 
for dir in `find bin share -type d`; do mkdir -p /usr/local/$dir; done
for file in `find bin share -type f`; do cp $file /usr/local/$file; done
mkdir -p /usr/local/share/doc/ruby-install-0.6.1
cp -r *.md *.txt /usr/local/share/doc/ruby-install-0.6.1/
*********************************TERMINAL**********************************

deployer$ ruby-install ruby
*********************************TERMINAL**********************************
#....
>>> Successfully installed ruby 2.5.1 into /home/deployer/.rubies/ruby-2.5.1
*********************************TERMINAL**********************************






# chruby https://github.com/postmodern/chruby#install
deployer$ cd ~
deployer$ wget -O chruby-0.3.9.tar.gz https://github.com/postmodern/chruby/archive/v0.3.9.tar.gz
deployer$ tar -xzvf chruby-0.3.9.tar.gz
deployer$ cd chruby-0.3.9/
deployer$ sudo make install
deployer$ echo "source /usr/local/share/chruby/chruby.sh" >> ~/.bashrc 
deployer$ echo "source /usr/local/share/chruby/auto.sh" >> ~/.bashrc
deployer$ chruby ruby-2.5.1
deployer$ echo "chruby ruby-2.5.1" >> ~/.profile
deployer$ echo "gem: --no-document" > ~/.gemrc
deployer$ gem install bundler
deployer$ gem install rails -v 5.2.0




# Install NodeJS for Javascript Engine
deployer$ curl -sL https://deb.nodesource.com/setup_8.x | sudo -E bash -
deployer$ sudo apt-get install -y nodejs





# Install Nginx for Web Server
deployer$ sudo add-apt-repository ppa:nginx/stable
deployer$ sudo apt-get update
deployer$ sudo apt-get -y install nginx
deployer$ sudo rm /etc/nginx/sites-available/default
deployer$ sudo service nginx start && sudo service nginx status
*********************************TERMINAL**********************************
# ....
● nginx.service - A high performance web server and a reverse proxy server
# ....
*********************************TERMINAL**********************************
(● - must be green)








# Install PosgreSQL for Database
deployer$ sudo apt-get update
deployer$ sudo apt-get -y install postgresql postgresql-contrib libpq-dev
deployer$ sudo su - postgres
*********************************TERMINAL**********************************
postgres$
*********************************TERMINAL**********************************
postgres$ createuser --pwprompt deploy
postgres$ exit


# to install postgis
deployer$ sudo apt-get install postgis postgresql-9.5-postgis-scripts









# for Puma Upstart
deployer$ sudo apt-get update
deployer$ sudo apt-get install
deployer$ sudo update-initramfs -u
***** TERMINAL ******
update-initramfs: Generating /boot/initrd.img-4.4.0-130-generic
W: mdadm: /etc/mdadm/mdadm.conf defines no arrays.
***** TERMINAL ******
# prints a warning but this is OK
deployer$ sudo reboot

deployer$ wget https://raw.githubusercontent.com/puma/puma/master/tools/jungle/upstart/puma-manager.conf
deployer$ wget https://raw.githubusercontent.com/puma/puma/master/tools/jungle/upstart/puma.conf
deployer$ nano puma.conf
**********************************NANO*************************************
# ...
setuid deployer
setgid deployer
# ...
**********************************NANO*************************************
deployer$ sudo cp puma.conf puma-manager.conf /etc/init
deployer$ sudo touch /etc/puma.conf
deployer$ echo "/home/deployer/apps/MYAPP/current" | sudo tee --append /etc/puma.conf








# Redis for Sidekiq
deployer$ sudo apt-get update
deployer$ sudo apt-get install build-essential tcl
deployer$ curl -O http://download.redis.io/redis-stable.tar.gz
deployer$ tar xzvf redis-stable.tar.gz
deployer$ cd redis-stable
deployer$ make
deployer$ make test
*********************************TERMINAL**********************************
#...
\o/ All tests passed without errors!
#...
*********************************TERMINAL**********************************
deployer$ sudo make install1sudo make install
deployer$ sudo mkdir /etc/redis
deployer$ sudo cp ~/redis-stable/redis.conf /etc/redis
deployer$ sudo nano /etc/redis/redis.conf
*********************************NANO**********************************
#...
supervised systemd
#....
dir /var/lib/redis
#....
*********************************NANO**********************************

deployer$ sudo nano /etc/systemd/system/redis.service
*********************************NANO**********************************
[Unit]
Description=Redis In-Memory Data Store
After=network.target

[Service]
User=redis
Group=redis
ExecStart=/usr/local/bin/redis-server /etc/redis/redis.conf
ExecStop=/usr/local/bin/redis-cli shutdown
Restart=always

[Install]
WantedBy=multi-user.target
*********************************NANO**********************************

deployer$ sudo adduser --system --group --no-create-home redis
deployer$ sudo mkdir /var/lib/redis
deployer$ sudo chown redis:redis /var/lib/redis
deployer$ sudo chmod 770 /var/lib/redis
deployer$ sudo systemctl start redis
deployer$ sudo systemctl status redis
*********************************TERMINAL**********************************
● redis.service - Redis In-Memory Data Store
   Loaded: loaded (/etc/systemd/system/redis.service; disabled; vendor preset: enabled)
   Active: active (running) since Tue 2018-07-10 22:01:16 UTC; 3s ago
 Main PID: 4417 (redis-server)
    Tasks: 4
   Memory: 924.0K
      CPU: 50ms
   CGroup: /system.slice/redis.service
           └─4417 /usr/local/bin/redis-server 127.0.0.1:6379
*********************************TERMINAL**********************************
deployer$ redis-cli
127.0.0.1:6379> ping
# PONG
127.0.0.1:6379> set test "It's working!"
# OK
127.0.0.1:6379> get test
# "It's working!"
127.0.0.1:6379> exit

deployer$ sudo systemctl restart redis
deployer$ redis-cli
127.0.0.1:6379> get test
# "It's working!"
127.0.0.1:6379> exit

deployer$ sudo systemctl enable redis



# to install yarn
deployer$ curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -
deployer$ echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list
deployer$ sudo apt-get update
deployer$ sudo apt-get install yarn

# to install image magick
deployer$ sudo apt-get update
deployer$ sudo apt-get install imagemagick libmagickwand-dev


# to install SSL
deployer$ sudo add-apt-repository ppa:certbot/certbot
deployer$ sudo apt-get update
deployer$ sudo apt-get install python-certbot-nginx
deployer$ sudo ufw allow 'Nginx Full'
deployer$ sudo ufw delete allow 'Nginx HTTP'
deployer$ sudo ufw status
*********************************OUTPUT**********************************
Status: active

To                         Action      From
--                         ------      ----
OpenSSH                    ALLOW       Anywhere
Nginx Full                 ALLOW       Anywhere
OpenSSH (v6)               ALLOW       Anywhere (v6)
Nginx Full (v6)            ALLOW       Anywhere (v6)
*********************************OUTPUT**********************************

deployer$ sudo certbot --nginx -d mysite.com -d www.mysite.com

# deploy.rb add these lines
*********************************config/deploy.rb**********************************
#...
set :nginx_ssl_certificate, "/etc/letsencrypt/live/mysite.com/fullchain.pem"
set :nginx_ssl_certificate_key, "/etc/letsencrypt/live/mysite.com/privkey.pem"
set :nginx_use_ssl, true
#...
*********************************config/deploy.rb**********************************

*********************************config/deploy/templates/nginx_conf.erb**********************************
#.....

<% if fetch(:nginx_use_ssl) -%>
server {
  listen 80;
  server_name <%= fetch(:nginx_server_name) %>;
  return 301 https://$host$1$request_uri;
}
<% end -%>

server {
<% if fetch(:nginx_use_ssl) -%>
  listen 443;
  ssl on;
<% if fetch(:nginx_ssl_certificate) -%>
  ssl_certificate <%= fetch(:nginx_ssl_certificate) %>;
<% else -%>
  ssl_certificate_key /etc/ssl/certs/<%= fetch(:nginx_config_name) %>.crt;
<% end -%>
<% if fetch(:nginx_ssl_certificate_key) -%>
  ssl_certificate_key <%= fetch(:nginx_ssl_certificate_key) %>;
<% else -%>
  ssl_certificate_key /etc/ssl/private/<%= fetch(:nginx_config_name) %>.key;
<% end -%>
<% else -%>
  listen 80;
<% end -%>

#.....

<% if fetch(:nginx_use_ssl) -%>
  location ~ /.well-known {
      allow all;
  }
<% end %>

#........
}
*********************************config/deploy/templates/nginx_conf.erb**********************************

# wildcart ssl
$ sudo certbot --server https://acme-v02.api.letsencrypt.org/directory -d *.example.com --manual --preferred-challenges dns-01 certonly

deployer$ sudo certbot renew --dry-run
deployer$ sudo crontab -e

add this lines
*********************************CRON FILE **********************************
30 2 * * 1 /usr/bin/letsencrypt renew >> /var/log/le-renew.log
35 2 * * 1 /bin/systemctl reload nginx
*********************************CRON FILE **********************************

deployer$ sudo systemctl restart nginx

puma.teklifal.service.erb

# Bu template dosyasi sadece buraya kaybolmasin diye konuldu. Henuz
# capistrano tarafinda nasil yuklenecegi belirlenmedi

[Unit]
Description=Puma HTTP Server
After=network.target

# Uncomment for socket activation (see below)
# Requires=puma.socket

[Service]
# Foreground process (do not use --daemon in ExecStart or config.rb)
Type=simple

# Preferably configure a non-privileged user
User=<%= fecth :user %>

# The path to the puma application root
# Also replace the "<WD>" place holders below with this path.
WorkingDirectory=<%= current_path %>

# Helpful for debugging socket activation, etc.
# Environment=PUMA_DEBUG=1

# The command to start Puma. This variant uses a binstub generated via
# `bundle binstubs puma --path ./sbin` in the WorkingDirectory
# (replace "<WD>" below)
ExecStart=<%= SSHKit.config.command_map[:bundle] %> exec pumactl -S <%= shared_path %>/tmp/pids/puma.state -F <%= shared_path %>/config/puma.rb restart
ExecStop=<%= SSHKit.config.command_map[:bundle] %> exec pumactl -S <%= shared_path %>/tmp/pids/puma.state stop

# Variant: Use config file with `bind` directives instead:
# ExecStart=<WD>/sbin/puma -C config.rb
# Variant: Use `bundle exec --keep-file-descriptors puma` instead of binstub

TimeoutSec=15
Restart=always

[Install]
WantedBy=multi-user.target