# Capistrano::SimpleUnicorn
Support for Capistrano 3.x

Capistrano task for automatic and unicorn configuration

This gem customize from [capistrano-unicorn-nginx](https://github.com/capistrano-plugins/capistrano-unicorn-nginx), and support for Ubuntu server, CentOs server, EC2 server...

Highlight of Gem:

* Automatic config unicorn for rails app
* Zero downtime deployments enabled

## Installation

Add this to `Gemfile`:
```
group :development do
    gem "capistrano"
    gem "capistrano-simple-unicorn"
end
```
And then:
```
$ bundle install
```
## Setup and usage

1. Update `Capfile`
```
require "capistrano/simple_unicorn"
```
2. Run deploy
```
$ bundle exec cap production deploy
```

## configuration

Default value:
```
set :unicorn_service, -> { "unicorn_#{fetch(:application)}" }
set :user_home_path, -> { "/home/#{fetch(:user)}" }
set :unicorn_config_path, -> { shared_path.join("config", "unicorn.rb") }
set :unicorn_pid_path, -> { shared_path.join("tmp", "pids", "unicorn.pid") }
set :unicorn_sock_path, -> { shared_path.join("tmp", "unicorn.sock") }
set :unicorn_log_file, -> { shaed_path.join("log", "unicorn.stdout.log") }
set :unicorn_error_log_file, -> {shared_path.join("log","unicorn.stderr.log")}
set :ruby_version, -> { fetch(:rvm_ruby_version) || fetch(:rbenv_ruby) }
set :unicorn_worker_processes, 2
set :unicorn_timeout, 30
```

If you want to change config:
Example
```
# in config/deploy/production.rb
set :unicorn_worker_processes, 4
set :unicorn_timeout, 60
```

## scrip remote
* start|stop|restart unicron, run:
```
$ cap production unicorn:start
$ cap production unicorn:stop
$ cap production unicorn:restart
```

# Config nginx

* Generate file config nginx, run:
```
$ cap production nginx:setup
```

* start|stop|restart nginx, run:
```
$ cap production nginx:start
$ cap production nginx:stop
$ cap production nginx:restart
```

You need add directory to sock file of app. Example using unicorn for app:
```
# in config/deploy.rb
set :nginx_upstream_file, "/tmp/unicorn.sock"
```

## Default config

```
    set :nginx_listen_port, 80 #listen_port
    set :nginx_server_name, "_" #server_name
    set :nginx_upstream_name, -> { "#{fetch(:application)}" } # upstream name
    set :nginx_config_name, -> { "#{fetch(:application)}_#{fetch(:stage)}" } #file name config
    set :nginx_fail_timeout, 0
    set :nginx_access_log_file, -> { "/var/log/nginx/#{fetch(:nginx_config_name)}.access.log" } # access log file
    set :nginx_error_log_file, -> { "/var/log/nginx/#{fetch(:nginx_config_name)}.error.log" } # error log file
    set :nginx_upstream_file, -> { "#{fetch(:unicorn_sock_path)}" } # .sock file path
```