ruby course - lesson 9 - deploying ruby web applications

8/8/2019 Ruby Course - Lesson 9 - Deploying Ruby Web Applications

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Todays lesson

Components used for deployment

Deploying Ruby/Rack-based web applicationson servers with full control

Deploying Ruby/Rack-based web applicationson Ruby cloud platforms (PaaS)

Wednesday, September 22, 2010


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Mongrel

FastCGI

Rubyservers

Server

adapters

HTTPservers

Unicorn



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Web app is a web server -> standalone(Webrick/Mongrel/Thin/Unicorn)

Web app as a spawned process -> CGI/FastCGI

Web app in app server -> proxied cluster

(Web/proxy server + Thin/Mongrel/Unicorn)

Web app in a web server -> Passenger(mod_rails)

Full server control



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Standalone

Webrick/Thin/

Mongrel



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CGI

remote/localApache/Nginx/Lighttpd



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FastCGI

persistent

remote/localApache/Nginx/Lighttpd



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Proxied clusterThin/

Mongrel

Thin/Mongrel

Thin/

Mongrel

remote/local

Apache/

Nginx/Lighttpd



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Passenger (mod_rails)

local

Apache/Nginx



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Install Passenger



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Configure Passengerwith Apache



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Add the following into your

httpd.conf (or what your Apacheconfiguration file is)

LoadModule passenger_module /Library/Ruby/Gems/1.8/gems/

passenger-2.2.15/ext/apache2/mod_passenger.so

PassengerRoot /Library/Ruby/Gems/1.8/gems/passenger-2.2.15PassengerRuby /System/Library/Frameworks/Ruby.framework/

Versions/1.8/usr/bin/ruby

the path to your filesare probably different



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ServerName localhost

DocumentRoot"/Users/sausheong/projects/chirpy/public"

order allow,deny Allow from all

AllowOverride all

Options -MultiViews

ErrorLog"/Users/sausheong/projects/chirpy/error_log"

CustomLog"/Users/sausheong/projects/chirpy/access_log" common

Put this is your Apache virtual hostconfiguration



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Add config.ru to your

applicationThis is the Rackup file, used to configure and

start up Rack apps (it is actually a Ruby script)



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require 'chirpy'

run Sinatra::Application

config.ru

Put this in yourapplication root



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Restart your Apache andaccess the site



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Ruby Cloud Platforms



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Platform-as-a-Service

Heroku

Engine YardMicrosoft Azure (IronRuby)

Google App Engine (JRuby)



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What is it?

Cloud-based Ruby platform

Runs on Amazon AWS EC2

Shared, multi-tenant platform

Fully managed and curated

Provides basic infrastructure, for others, useplug-ins



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Using Heroku



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Install Heroku gem

$ sudo gem install heroku



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Initialize an empty Gitrepository

$ git init



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Add all the files in thecurrent directory

$ git add .



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Commit all the files inthe directory to Heroku

$ git commit -m initial import



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Create the Herokuapplication

$ heroku create chirpy

If this is the first time youre using the Heroku command, you will be

prompted for a user name and password, subsequently will be saved in~/.heroku/credentials. This will upload your public key to all you to

push and pull code from Heroku



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Push your code toHeroku

$ git push heroku master



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Your application is now

deployed to Heroku$ heroku create chirpy



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http://chirpy.heroku.com

http://chirpy.heroku.com/http://chirpy.heroku.com/


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Fully deployed?



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Not yet

gems

needed

create

databasetables



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Include the gems

Create a file named .gems in the applicationroot

hamlsinatra --version >= 1.0

rack-flash --source http://...

json

rest-client

activesupport

dm-core

dm-postgres-adapter

dm-migrations

differentnames than inthe require

not include in

the app, usedto access PSQLin Heroku used for migrations

(creating tables)



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Create the tables

Heroku provides an irb-like console thatloads the environment

$ heroku console>> require dm-migrations

>> DataMapper.auto_migrate!



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Other stuffCheck the logs with

Add configuration variables (so that you dontneed to put it in the code)

Using it in the code:

$ heroku logs

$ heroku config:add FB_CLIENT_ID=...

$ heroku config:add FB_CLIENT_ID=...

redirect "https://graph.facebook.com/oauth/

authorize?client_id="+ ENV['FB_CLIENT_ID'] + ...

https://graph.facebook.com/oauth/authorize?client_id=https://graph.facebook.com/oauth/authorize?client_id=https://graph.facebook.com/oauth/authorize?client_id=https://graph.facebook.com/oauth/authorize?client_id=https://graph.facebook.com/oauth/authorize?client_id=


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Add-ons

Amazon RDS

WebSolr

SendGrid

MoonShado

Zerigo

MongoHQ

New Relic

Memcache

relational DB cloud provider

search engine

DNS API

SMTP API

MongoDB cloud provider

SMS API

Performance monitoring

Data caching

And many more ...



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Questions

ruby course - lesson 9 - deploying ruby web applications

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