The document discusses implementing continuous delivery for PHP applications deployed to AWS. It covers topics like using the latest stable version of PHP, solid object-oriented design principles, automated testing tools for PHP, build automation with Jenkins and Phing, application monitoring, and infrastructure automation with AWS services like EC2, RDS, and Elastic Beanstalk. Continuous delivery is presented as a solution to dysfunctional code deployments and lack of sleep by establishing automated, reliable deployment processes.

1. PHP, AWS, & Sleep
Confidently deploy PHP applications to the cloud…
and get some sleep!

2. Guillermo
(gee-YEAR-moe)
I sorta blog at guillermoandraefisher.com
and infrequently post content using the
@guillermoandrae moniker on various
social media networks.

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

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

5. “
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

6. America’s Most Sleep-Deprived Jobs
America’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

7. My Sleeping Problems
◈ Children

8. My Sleeping Problems
◈ Children
◈ Sleep apnea

9. “
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

10. 60+/hour
A diagnosis of severe sleep apnea is given when upwards of 30 apnea
episodes occur every hour.

11. 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

12. My Sleeping Problems
◈ Children
◈ Sleep apnea
◈ Code deployments

13. My Sleeping Problems
◈ Children
◈ Sleep apnea
◈ Dysfunctional code deployments

14. My Sleeping Solutions
◈ Children Stop having children

15. My Sleeping Solutions
◈ Children Stop having children
◈ Sleep apnea Diet + exercise or CPAP machine

16. “
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

19. Choice #1
Eat less steak, exercise more.

20. EAT LESS STEAK!
Choice #2
Vader sleep.

22. My Sleeping Solutions
◈ Children Stop having children
◈ Sleep apnea Diet + exercise or CPAP machine

23. My Sleeping Solutions
◈ Children Stop having children
◈ Sleep apnea Diet + exercise or CPAP machine
◈ Dysfunctional code deployments ?

24. Symptoms of Dysfunctional Deployments
◈ Inconsistency across environments
◈ Unplanned outages
◈ Infrequent deployments
◈ Little confidence in stability of code changes
◈ Developer burnout

25. “
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

26. $> 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

27. $> 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

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

29. My Sleeping Solutions
◈ Children Stop having children
◈ Sleep apnea Diet + exercise or CPAP machine
◈ Dysfunctional code deployments Quit!

30. 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

31. 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

32. My Sleeping Solutions
◈ Children Stop having children
◈ Sleep apnea Diet + exercise or CPAP machine
◈ Dysfunctional code deployments Continuous
Delivery!

33. “
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

34. 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

35. 24xFaster recovery from failure
2.2xEmployees more likely to recommend organization as a great place to work
3xLower change failure rate

36. Continuous Delivery
◈ Configuration management
◈ Test automation
◈ Build automation
◈ Application monitoring
◈ Infrastructure automation

37. Continuous Delivery
◈ Configuration management
◈ Test automation
◈ Build automation
◈ Application monitoring
◈ Infrastructure automation

39. Continuous Delivery
◈ Configuration management
◈ Test automation
◈ Build automation
◈ Application monitoring
◈ Infrastructure automation

40. Continuous Delivery w/ PHP
◈ PHP: The Right Way
◈ The PHP QA Toolchain
◈ Jenkins
◈ Phing

41. 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.

42. 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

44. 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.”

46. 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

47. Continuous Delivery
◈ Configuration management
◈ Test automation
◈ Build automation
◈ Application monitoring
◈ Infrastructure automation

49. 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

50. 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

52. “
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

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

61. Continuous Delivery
◈ Configuration management
◈ Test automation
◈ Build automation
◈ Application monitoring
◈ Infrastructure automation

62. A Deployment Pipeline

64. Any questions?