Coding, Scaling, and Deploys... Oh My!

CodingScaling

andDeploys

Mark Jaquith“JAKE-with”

@[email protected] Oh My!

Friday, August 12, 11

mailto:[email protected]


Photo by Sco! Beale (Laughing Squid)

Meanwhile, in 2006...


CowboyCoding


CowboyCoding

BAD DEVELOPER! BAD!


bnj.com/cowboy-coding-pink-sombrero


http://www.bnj.com/cowboy-coding-pink-sombrero/

http://www.bnj.com/cowboy-coding-pink-sombrero/

VCS GTFO• or •


WordPressin your repo


My Ideal index.phpwp-config.phpcontent/themes/content/plugins/content/uploads/ (ignored)

wp ➠ EXTERNAL


Local Development


1. MAMP, XAMPP, other

2. /etc/hosts

3. local-config.php


if ( file_exists( dirname( __FILE__ ) . '/local-config.php' ) ) { include( dirname( __FILE__ ) . '/local-config.php' ); define( 'WP_LOCAL_DEV', true );} else { define( 'WP_LOCAL_DEV', false ); define( 'DB_NAME', 'production_db' ); define( 'DB_USER', 'production_user' ); define( 'DB_PASSWORD', 'production_password' ); define( 'DB_HOST', 'production_db_host' );}

Ignore local-config.php so it doesn’t get checked in.


Deploying — with —


1. gem install capistrano

2. gem install railsless-deploy

3. gem install capistrano-ext


releases/

current => {current-release}

shared/cached-copy

shared/files/


checked in:content/uploads => ../../files/uploads/

done on deploy:files => /srv/www/example.org/shared/files/


Scaling a Single Server


nginxFriday, August 12, 11

proxy to Apacheor

PHP-FPMFriday, August 12, 11

PHPOpcode Cache


WP Object Cache


HTMLOutputCache

Batcache || W3 Total Cache


Fragment Caching

if ( $html = wp_cache_get( 'expensive-html-chunk', 'my-theme' ) ) { echo $html;} else { $html = dynamically_generate_foo(); wp_cache_set( 'expensive-html-chunk', $html, 'my-theme', 3600 ); echo $html;}


MySQL Query Cache


CDN— with —

Origin PullFriday, August 12, 11

The Plan


What happens if we outgrow our server?

Boss

Tech

The Plan



Boss

Tech

We’ll just add new servers!

The Plan



Brilliant!

Boss

Tech

We’ll just add new servers!

The Plan


The Plan


The Reality


Our site is slow. Let’s add another server.

Boss

Tech

The Reality



Boss

Tech

Uh...

The Reality



So this will take like 5 minutes, right?

Boss

Tech

Uh...

The Reality


Have a plan

Not an ideaFriday, August 12, 11

Multiple Servers


Load Balancing


Sharing Uploads


Memcached


Rinse & Repeat


HyperDB


MaintainingServers with

PuppetFriday, August 12, 11

This is the start of a larger conversation


Thanks!Mark Jaquith“JAKE-with”

@[email protected]




Coding, Scaling, and Deploys... Oh My!

Technology

Transcript of Coding, Scaling, and Deploys... Oh My!