deployment patterns in the ruby on rails world

DEPLOYMENT PATTERNS

IN THE RUBY on RAILS WORLD

DEVOPSDAYS INDIA2 0 1 1

Nikhil Mungel

@hyfather

Ajey Gore@AjeyGore

ApacheApache

Apache

Passenger

ApacheRails

/app/config/db/doc/lib/log/public/script/test/tmp/vendorconfig.ruREADMERakefile

* Ruby on Rails

Local Repository

AppServer Pull Git

signal over SSH

run updated script

1

23Pull

AppServer

contains all scripts

SCM-awaredeployments

fast and effortless

dev and deployment on ruby

transfers only delta

dev env mess can overflow

compiling native gemsadmin-hell for IT/Ops

GitCI

RunsTests

Tests

CodePull

QA

$ deploy 77ef185d7

$ deploy 77ef185d7

Staging Prod.

GitCI

RunsTests

Tests

CodePull

QA Staging

Production

$ deploy 77ef185d7

$ deploy 77ef185d7

CI

RunsTests

UnitTests

FunctionalTests

PerfTests

CI

Git Pull

UnitTests

FunctionalTests

PerfTests

CI

Git Pull

Push a Tag

tag: mainline-234

UnitTests

FunctionalTests

PerfTests

CI

Git Pull

CIGit

mainline unittests

functests

perftests

mainline unittests

functests

perftests

deploy package emit consume

on remotemachine

Gittag

on CImachine

12

3

mainline unittests

functests

perftests

deploy emit consume

on remotemachine

Gittag1

2

3on CImachine

package

RPM

rubygem

tarball

war

deb

tarball

better than a directory

extremely simple to setup

no metadata

RPM, debstored in a repository

standard locations -- /etc

first-class system service

effected by chef/puppet

toolchain expertise

less common

maintain a repository

rubygem

maintain a gem repository

tarball with metadata

effected by chef/puppet

stored in a repository

mainline unittests

functests

perftests

deploy consume

on remotemachine

Gittag1

2

3on CImachine

package emit

upload to a repo

expose overCI artifact API

mainline unittests

functests

perftests

deploy

Gittag1

2

3on CImachine

emitpackage consume

on remotemachine

gem install

yum install

apt-get install

Config Management

my.cnf

ssh_config

httpd.conf

/etc

database.yml

.htaccess

private keys for external systems

/etc

First ClassLinux Application Software

/etc/myapp

bundle install --without test development

bundle package

bundle install --deployment

install to vendor/bundle

.gem files to vendor/cache

bundle install --local

Thanks!@hyfather @AjeyGore