PHP, AWS, and Sleep - Hampton Roads DevFest 2016

PHP, AWS, & SleepConfidently deploy PHP applications to the cloud…

and get some sleep!

Guillermo (gee-YEAR-moe)

I sorta blog at guillermoandraefisher.com and infrequently post content using the @guillermoandrae moniker on various

social media networks.

We’re hiring!Find opportunities at careers.dominionenterprises.com.

Agenda

◈ Sleep◈ Continuous Delivery◈ PHP: The Right Way◈ Amazon Web Services (AWS)◈ A Deployment Pipeline

“Resilience to stress,

emotional regulation, and interpersonal relationships

are impaired by sleep deficiency.

Why is Sleep Important?, Michael Twery, Ph.D., Director, National Center on Sleep Disorders Research, the National

Heart, Lung, and Blood Institute

America’s Most Sleep-Deprived JobsAmerica’s 10 Most Sleep-Deprived Jobs, The New York Times, February 22, 2012

#1 6h 57m Home Health Aides

#3 7h 1m Police Officers

#4 7h 2m Physicians, Paramedics

#7 7h 3m Computer Programmers

#9 7h 7m Plant Operators

My Sleeping Problems

◈ Children


◈ Children◈ Sleep apnea

“Sleep apnea is a common

disorder in which you have one or more pauses in breathing or shallow breaths while you sleep.

What is Sleep Apnea?, National Heart, Lung, and Blood Institute

60+/hourA diagnosis of severe sleep apnea is given when upwards of 30 apnea

episodes occur every hour.

Symptoms of Sleep Apnea

◈ Loud snoring◈ Episodes of breathing cessation◈ Abrupt awakenings w/ shortness of breath◈ Dry mouth or sore throat◈ Morning headache◈ Insomnia◈ Hypersomnia◈ Attention problems◈ Irritability


◈ Children◈ Sleep apnea◈ Code deployments


◈ Children◈ Sleep apnea◈ Dysfunctional code deployments

My Sleeping Solutions

◈ Children Stop having children


◈ Children Stop having children◈ Sleep apnea Diet + exercise or CPAP machine

“CPAP, or continuous

positive airway pressure, is a treatment that uses

mild air pressure to keep the airways open.

What is CPAP?, National Heart, Lung, and Blood Institute

Choice #1Eat less steak, exercise more.

EAT LESS STEAK!

Choice #2Vader sleep.


◈ Children Stop having children◈ Sleep apnea Diet + exercise or CPAP machine


◈ Children Stop having children◈ Sleep apnea Diet + exercise or CPAP machine◈ Dysfunctional code deployments ?

Symptoms of Dysfunctional Deployments

◈ Inconsistency across environments◈ Unplanned outages◈ Infrequent deployments◈ Little confidence in stability of code changes◈ Developer burnout

“Deployment pain can tell you a lot about

your IT performance...We found that where code deployments are most painful, you’ll find

the poorest IT performance, organizational performance and culture.2015 State of DevOps Report, Puppet Labs

$> ssh widget-app-01 # because you might have to make manual configuration changes, or you need to verify that all of the necessary files made it onto the server during the deployment, or you need to tail logs

$> tail -n 100 -f /var/log/httpd/error_log # because the error reporting policy in place is insufficient/non-existent and/or your application monitoring system raises so many false alarms that it is entirely useless

$> mysql -u widget -h db-prod.widgetapp.com -p # because you’re trying to get fired


◈ Children Stop having children◈ Sleep apnea Diet + exercise or CPAP machine◈ Dysfunctional code deployments Quit!

11:12 AM Boss: Guillermo, on the smilie face scale, what is the automated test

and deployment procedure like for <REDACTED> ?

11:14 AM Me: There is no smily face sad enough… I build the code, publish the

DLLs, copy it up to staging manually, then execute a series of scripts to

deploy

11:16 AM Boss: Would you be ok getting on that immediately. Sure you know what

needs to be done.

11:17 AM Me: OK. I will have to familiarize myself with a few things in order

to do that but I will get started immediately

Boss: Jenkins is alwasy a good bet, but it is your call. Worth reaching out to

<REDACTED> to exchange ideas.

Thank you

Me: Sure


◈ Children Stop having children◈ Sleep apnea Diet + exercise or CPAP machine◈ Dysfunctional code deployments Continuous

Delivery!

“Continuous Delivery is a

software development discipline where you build

software in such a way that the software can be released to

production at any time.Continuous Delivery, Martin Fowler

Continuous Delivery

◈ Your software is deployable throughout its lifecycle◈ Your team prioritizes keeping the software deployable over

working on new features◈ Anybody can get fast, automated feedback on the production

readiness of their systems any time somebody makes a change to them

◈ You can perform push-button deployments of any version of the software to any environment on demand

24xFaster recovery from failure

2.2xEmployees more likely to recommend organization as a great place to work

3xLower change failure rate

Continuous Delivery

◈ Configuration management◈ Test automation◈ Build automation◈ Application monitoring◈ Infrastructure automation

Continuous Delivery w/ PHP

◈ PHP: The Right Way◈ The PHP QA Toolchain◈ Jenkins◈ Phing

PHP: Use the current stable version (7.0)

Scalar type declarations

Now enforceable: string, int, float and bool (in addition to the other types introduced in PHP 5: class names, interfaces, array and callable)

Anonymous classes

Support for anonymous classes has been added via new class. These can be used in place of full class definitions for throwaway objects.

Group use declarations

Classes, functions and constants being imported from the same namespace can now be grouped together in a single use statement.

PHP: Use the current stable version (7.0)PHP7 Infographic, Zend

Mandelbrot fractal rendering time (s)

PHP 7 0.281

Ruby 2.1 0.684

Python 2.7.8 1.128

Perl 5.18.4 2.083

SOLID Object-Oriented Design

Single Responsibility Principle (SRP)A class should have only a single responsibility

Open/Closed Principle (OCP)“software entities … should be open for extension, but closed for modification.”

Liskov Substitution Principle (LSP)“objects in a program should be replaceable with instances of their subtypes without altering the correctness of that program.”

Interface Segregation Principle (ISP)“many client-specific interfaces are better than one general-purpose interface.”

Dependency Inversion Principle (DIP)“Depend upon Abstractions. Do not depend upon concretions.”

The PHP Quality Assurance Toolchain

PHPUnit

The de-facto standard for unit testing in PHP projects

vfsStream

A stream wrapper for a virtual file system

PHPLOC

A tool for quickly measuring the size of a PHP project

PHP Mess Detector

Scans PHP source code and looks for potential problems

PHP_CodeSniffer

Detects violations of a defined set of coding standards

phpDox

The documentation generator for PHP projects

Continuous Delivery


Getting Started with AWS

Virtual Private Cloud (VPC)

Isolated cloud resources

Elastic Compute Cloud (EC2)

Virtual servers in the cloud

Relational Database Service (RDS)

Managed relational database service

Identity & Access Manager (IAM)

Manage user access and encryption keys

CloudWatch

Monitor resources and applications

Trusted Advisor

Optimize performance and security

Getting Started with AWS

Simple Storage Service (S3)

Scalable storage in the cloud

CloudFront

Global content delivery network

Elastic File System (EFS)

Fully managed file system for EC2

Route 53

Scalable DNS and domain name registration

Simple Email Service (SES)

E-mail sending and receiving service

ElastiCache

In-memory cache

“AWS Elastic Beanstalk is an

easy-to-use service for deploying and scaling web applications and services

developed with Java, .NET, PHP, Node.js, Python, Ruby, Go, and Docker

on familiar servers such as Apache, Nginx, Passenger, and IIS.

AWS Elastic Beanstalk, Amazon Web Services

The .ebextensions Directory

◈ Used to configure EB environments◈ Can be added to project source code◈ YAML documents with a .config extension

Continuous Delivery


A Deployment Pipeline

Any questions?

PHP, AWS, and Sleep - Hampton Roads DevFest 2016

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Transcript of PHP, AWS, and Sleep - Hampton Roads DevFest 2016