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6 Steps to Transform Enterprise
Applications
Daniel Oh
Senior Specialist Solution Architect
Agile & DevOps Community of Practice Manager
Every business is a
technology business.
More Developer Reality
▪ Your deployments likely take 6 to 9 months today (super stars
might deploy every 3 to 4 weeks but that is not the norm).
▪ What if competitive pressures change?
▪ What if regulatory requirements change?
▪ What if a major CVE descends on your OS, App Server, JVM,
framework?
Digital Darwinism
The Developer’s Journey
Self-Service,
On-Demand,
Elastic
Infrastructure
Automation
Puppet, Chef,
Ansible,
Kubernetes
CI & CD
Deployment
Pipeline
Advanced
Deployment
Techniques
Microservices
(and flying
elephants!)
Re-Org to
DevOps
1 Re-Org to DevOps
№
Any organization that designs
a system will inevitably produce
a design whose structure is
a copy of the organization's
communication structure.
Conway’s Law
Chinese Whispers
https://en.wikipedia.org/wiki/Chinese_whispers
Upgrade to JRE 1.8,
bug fixes, Lambdas
Upgrade to Java 1.8,
bunch of bug fixes, Lambdas
Upgrade Java
bugs and lambaz
Upgrade Java
bugs and lembas
Upgrade Java?
bugs and lembas
WTF? Java upgrade
bugs and lambs?
Damn Devs want Java upgrade!
something about buggy sheep?
I think I heard of that sheep bug
When restructuring
teams yields better
results, it illustrates
once again that …
… software development is still
mostly a communication problem.
ThoughtWorks Radar
Only 11% of organizations across industries
indicated their existing in-house talent has
the competitive skills necessary for success
in the digital economy.
MIT Sloan Management Review, 2016
Companies are looking for people who have a
balance of technical and soft skills. Today, people
with deep technical knowledge are expected to
have solid skills in areas such as communication.
MIT Sloan Management Review, 2016
Seek first to understand,
then to be understood.
Stephen R. Covey
No man ever listened
himself out of a job.
Calvin Coolidge
2 Self-Service, On-Demand,
Elastic Infrastructure
№
How many weeks do you wait for
a new VM to be provisioned?
Why do expensive resources
like developers wait so long for
inexpensive resources like VMs?
Self-Service
Means No
Tickets
3 Automation, Puppet, Chef,
Ansible, Kubernetes
№
▪ Phoenix Servers vs. Snowflakes
(https://martinfowler.com/bliki/PhoenixServer.html)
▪ Programmable Infrastructure as Code
▪ Containers move developers closer to
a production environment, even on
a laptop
▪ Address the “But it works on my
machine!” issue
▪ Datasource
▪ Version of the JDBC driver
▪ Configuration of the db connection pool
▪ JVM settings
▪ JMS Queues
▪ Default User/Passwords
▪ “/” vs. “”
4 CI & CD
Deployment Pipeline
№
Jez Humble Continuous
Integration
▪ Software (trunk) is always deployable
▪ Everyone is checking into trunk daily (at
least)—not feature branches
▪ If the build breaks, it’s fixed in 10 minutes
(all hands on deck)
▪ A new engineer can be on-boarded in 1
day—with a production-like environment on
the developer workstation
▪ Deployment is a low-risk, push-button affair
The job of a deployment pipeline
is to prove that the release
candidate is unreleasable.
Jez Humble
5 Advanced Deployment
Techniques
№
‘Speed Kills!’ vs.
‘Go Fast, Go Safe’
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0160
118K JMX
Consoles
https://puppet.com/resources/whitepaper/2016-state-of-devops-report
Starts with a “git commit and git push”
Blue/Green Deployment
DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS
BUILD
SCM
Blue/Green Deployment
DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS
BUILD
SCM
Blue/Green Deployment
DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS
BUILD
SCM
Blue/Green Deployment
DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS
BUILD
SCM
Blue/Green Deployment
DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS
BUILDSCM
Blue/Green Deployment
DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS
SCM
Blue/Green Deployment
DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS
SCM
6 Microservices
(and flying elephants!)
№
THE QUICK SHALL
INHERIT THE EARTH.
Fast is better than slow.
Facebook’s Little Red Book
Why Pipeline?
Code offers no value until it deploys.
Why Canary
Deployments?
Canary Deployment
DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS
SCM
Canary Deployment
DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS
SCM
Canary Deployment
DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS
SCM
Canary Deployment
DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS
SCM
Canary Deployment
DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS
SCM
Canary Deployment
DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS
SCM
Canary Deployment
DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS
SCM
Canary Deployment
DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS
SCM
Canary Deployment
DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS
SCM
Canary Deployment
DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS
SCM
THE BEST CODE
˭
Our experience at Microsoft is no
different—only about 1/3 of ideas
improve the metrics they were
designed to improve.
Ronny Kohavi, Microsoft (Amazon)
http://ai.stanford.edu/~ronnyk/ExPThinkWeek2009Public.pdf
If you must code,
first do no harm!
Developers’ Hippocratic Oath
So what’s your
hypothesis?
In search of the Holy Grail (A/B Testing)
A/B Testing
DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS
SCM
Hypothesis & Experiment (two variants):
Check-out button placement increase sales conversions for iOS users?
ACME Laptop
128GB SSD, 8GB RAM
$323.56
Touchscreen
128GB SSD
8GB RAM
Core i3
Windows 10
Add to Cart
In-Store Pickup (15 available)
Raleigh, Central Ave, Store #1123
Recommendations
A
ACME Laptop
128GB SSD, 8GB RAM
$323.56
Touchscreen
128GB SSD
8GB RAM
Core i3
Windows 10
Add to Cart
In-Store Pickup (15 available)
Raleigh, Central Ave, Store #1123
Recommendations
B
A
ACME Laptop
128GB SSD, 8GB RAM
$323.56
Touchscreen
128GB SSD
8GB RAM
Core i3
Windows 10
Add to Cart
In-Store Pickup (15 available)
Raleigh, Central Ave, Store #1123
Recommendations
B
ACME Laptop
128GB SSD, 8GB RAM
$323.56
Touchscreen
128GB SSD
8GB RAM
Core i3
Windows 10
Add to Cart
In-Store Pickup (15 available)
Raleigh, Central Ave, Store #1123
Recommendations
A
ACME Laptop
128GB SSD, 8GB RAM
$323.56
Touchscreen
128GB SSD
8GB RAM
Core i3
Windows 10
Add to Cart
In-Store Pickup (15 available)
Raleigh, Central Ave, Store #1123
Recommendations
B
ACME Laptop
128GB SSD, 8GB RAM
$323.56
Touchscreen
128GB SSD
8GB RAM
Core i3
Windows 10
Add to Cart
In-Store Pickup (15 available)
Raleigh, Central Ave, Store #1123
At 1-week deployment intervals?
https://m.signalvnoise.com/the-majestic-monolith-29166d022228#.4skbfc2gj
Majestic Monolith
https://developers.redhat.com/blog/2016/10/27/the-fast-moving-monolith-how-
we-sped-up-delivery-from-every-three-months-to-every-week/
Assess whether this meets your needs!
Not yet fast enough?
Shrink your elephant!
• The network is reliable.
• Latency is zero.
• Bandwidth is infinite.
• The network is secure.
The first rule of distributed computing is DO NOT!
https://en.wikipedia.org/wiki/Fallacies_of_distributed_computing
• Topology doesn't change.
• There is one administrator.
• Transport cost is zero.
• The network is homogeneous.
Fallacies of Distributed
Computing
Strangle the Monolith
Your Monolithic Database
(Your DBA will kill you.)
Download a copy
of Edson’s book at
developers.redhat.com
There’s an Elephant
in the Room
java -jar myapp.jar
DropWizard
www.dropwizard.io
JAX-RS API
First to market
DropWizard Metrics
Embeddable servers:
Jetty
Spring Boot
projects.spring.io/spring
-boot
Spring API
(@RestController)
‘Starter’ POMs:
start.spring.io
Embeddable servers:
Tomcat, Jetty, Undertow
WildFly Swarm
wildfly-swarm.io
Java EE 7 APIs
‘Starter’ POMs:
wildfly-swarm.io/gen
erator
Embeddable servers:
WildFly (Undertow)
Vert.x
vertx.io
Reactive
Async/non-blocking
vertx run myhttp.java
HTTP, HTTP/2, TCP,
UDP, Websockets, etc
out-of-the-box
Failure Happens
CHAPTER 2:
The Exception that
Grounded an Airline
The delays were shown on
Good Morning America (complete with
video of pathetically stranded single
moms and their babies) …
VERIZON OUTAGE CRASHES JETBLUE
AIRLINES’ ELECTRONICS SYSTEMS, DELAYING
FLIGHTS AND BRINGING DOWN ONLINE SITES
FOR BOOKING AND CHECK-IN
January 14, 2016. A Verizon data center outage
Thursday morning brought down JetBlue’s
electronic systems, causing flight delays and
shutting down the airline’s website, along with its
online booking and check-in systems.
SOUTHWEST AIRLINES SYSTEM OUTAGE
BRINGS FLIGHTLINE TO FULL GROUND STOP,
DELAYS AND MADDENS PASSENGERS
July 21, 2016. Southwest Airlines has cancelled
1,150 flights since the airline's full ground stop for
on Wednesday. The trouble started with a "system
outage," and the ground stop lasted for just over an
hour.
DELTA AIRLINES SAYS THE TOTAL BILL FOR
ITS DEVASTATING COMPUTER OUTAGE WILL
COME TO $150 MILLION, AUGUST 8, 2016
COMPUTER OUTAGE GROUNDS DELTA
FLIGHTS IN U.S., JANUARY 17, 2017
Digital Darwinism
The Developer’s Journey
Self-Service,
On-Demand,
Elastic
Infrastructure
Automation
Puppet, Chef,
Ansible,
Kubernetes
CI & CD
Deployment
Pipeline
Advanced
Deployment
Techniques
Microservices
(and flying
elephants!)
Re-Org to
DevOps
If we don’t create the thing that
kills Facebook, someone else will.
‘Embracing change’ isn’t enough. It has
to be so hardwired into who we are that
even talking about it seems redundant.
Facebook’s Little Red Book
1. Learn Linux, AWS/GCP/Azure, Docker & Kubernetes
2. Start an Email List
3. Every other week Demo Day
4. Opposite every other week Book Club
5. Quarterly Mini-Conference—internal and external presenters
6. Document your Value Stream Map
THANK YOU!
https://twitter.com/rhdevelopers/https://developers.redhat.com/

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[RHFSeoul2017]6 Steps to Transform Enterprise Applications

  • 1. 6 Steps to Transform Enterprise Applications Daniel Oh Senior Specialist Solution Architect Agile & DevOps Community of Practice Manager
  • 2. Every business is a technology business.
  • 3.
  • 4.
  • 5. More Developer Reality ▪ Your deployments likely take 6 to 9 months today (super stars might deploy every 3 to 4 weeks but that is not the norm). ▪ What if competitive pressures change? ▪ What if regulatory requirements change? ▪ What if a major CVE descends on your OS, App Server, JVM, framework?
  • 6. Digital Darwinism The Developer’s Journey Self-Service, On-Demand, Elastic Infrastructure Automation Puppet, Chef, Ansible, Kubernetes CI & CD Deployment Pipeline Advanced Deployment Techniques Microservices (and flying elephants!) Re-Org to DevOps
  • 7. 1 Re-Org to DevOps №
  • 8. Any organization that designs a system will inevitably produce a design whose structure is a copy of the organization's communication structure. Conway’s Law
  • 10.
  • 11.
  • 12. Upgrade to JRE 1.8, bug fixes, Lambdas Upgrade to Java 1.8, bunch of bug fixes, Lambdas Upgrade Java bugs and lambaz Upgrade Java bugs and lembas Upgrade Java? bugs and lembas WTF? Java upgrade bugs and lambs? Damn Devs want Java upgrade! something about buggy sheep? I think I heard of that sheep bug
  • 13.
  • 14.
  • 15. When restructuring teams yields better results, it illustrates once again that …
  • 16. … software development is still mostly a communication problem. ThoughtWorks Radar
  • 17. Only 11% of organizations across industries indicated their existing in-house talent has the competitive skills necessary for success in the digital economy. MIT Sloan Management Review, 2016
  • 18. Companies are looking for people who have a balance of technical and soft skills. Today, people with deep technical knowledge are expected to have solid skills in areas such as communication. MIT Sloan Management Review, 2016
  • 19. Seek first to understand, then to be understood. Stephen R. Covey
  • 20. No man ever listened himself out of a job. Calvin Coolidge
  • 22. How many weeks do you wait for a new VM to be provisioned? Why do expensive resources like developers wait so long for inexpensive resources like VMs?
  • 24. 3 Automation, Puppet, Chef, Ansible, Kubernetes №
  • 25. ▪ Phoenix Servers vs. Snowflakes (https://martinfowler.com/bliki/PhoenixServer.html) ▪ Programmable Infrastructure as Code ▪ Containers move developers closer to a production environment, even on a laptop ▪ Address the “But it works on my machine!” issue
  • 26. ▪ Datasource ▪ Version of the JDBC driver ▪ Configuration of the db connection pool ▪ JVM settings ▪ JMS Queues ▪ Default User/Passwords ▪ “/” vs. “”
  • 27. 4 CI & CD Deployment Pipeline №
  • 28. Jez Humble Continuous Integration ▪ Software (trunk) is always deployable ▪ Everyone is checking into trunk daily (at least)—not feature branches ▪ If the build breaks, it’s fixed in 10 minutes (all hands on deck) ▪ A new engineer can be on-boarded in 1 day—with a production-like environment on the developer workstation ▪ Deployment is a low-risk, push-button affair
  • 29. The job of a deployment pipeline is to prove that the release candidate is unreleasable. Jez Humble
  • 31. ‘Speed Kills!’ vs. ‘Go Fast, Go Safe’
  • 33.
  • 36. Starts with a “git commit and git push” Blue/Green Deployment DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS BUILD SCM
  • 37. Blue/Green Deployment DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS BUILD SCM
  • 38. Blue/Green Deployment DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS BUILD SCM
  • 39. Blue/Green Deployment DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS BUILD SCM
  • 40. Blue/Green Deployment DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS BUILDSCM
  • 41. Blue/Green Deployment DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS SCM
  • 42. Blue/Green Deployment DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS SCM
  • 43. 6 Microservices (and flying elephants!) №
  • 44. THE QUICK SHALL INHERIT THE EARTH. Fast is better than slow. Facebook’s Little Red Book
  • 45. Why Pipeline? Code offers no value until it deploys.
  • 47.
  • 48. Canary Deployment DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS SCM
  • 49. Canary Deployment DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS SCM
  • 50. Canary Deployment DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS SCM
  • 51. Canary Deployment DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS SCM
  • 52. Canary Deployment DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS SCM
  • 53. Canary Deployment DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS SCM
  • 54. Canary Deployment DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS SCM
  • 55. Canary Deployment DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS SCM
  • 56. Canary Deployment DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS SCM
  • 57. Canary Deployment DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS SCM
  • 59. Our experience at Microsoft is no different—only about 1/3 of ideas improve the metrics they were designed to improve. Ronny Kohavi, Microsoft (Amazon) http://ai.stanford.edu/~ronnyk/ExPThinkWeek2009Public.pdf
  • 60. If you must code, first do no harm! Developers’ Hippocratic Oath
  • 61. So what’s your hypothesis? In search of the Holy Grail (A/B Testing)
  • 62. A/B Testing DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS SCM Hypothesis & Experiment (two variants): Check-out button placement increase sales conversions for iOS users?
  • 63. ACME Laptop 128GB SSD, 8GB RAM $323.56 Touchscreen 128GB SSD 8GB RAM Core i3 Windows 10 Add to Cart In-Store Pickup (15 available) Raleigh, Central Ave, Store #1123 Recommendations A ACME Laptop 128GB SSD, 8GB RAM $323.56 Touchscreen 128GB SSD 8GB RAM Core i3 Windows 10 Add to Cart In-Store Pickup (15 available) Raleigh, Central Ave, Store #1123 Recommendations B
  • 64. A ACME Laptop 128GB SSD, 8GB RAM $323.56 Touchscreen 128GB SSD 8GB RAM Core i3 Windows 10 Add to Cart In-Store Pickup (15 available) Raleigh, Central Ave, Store #1123 Recommendations B ACME Laptop 128GB SSD, 8GB RAM $323.56 Touchscreen 128GB SSD 8GB RAM Core i3 Windows 10 Add to Cart In-Store Pickup (15 available) Raleigh, Central Ave, Store #1123 Recommendations
  • 65. A ACME Laptop 128GB SSD, 8GB RAM $323.56 Touchscreen 128GB SSD 8GB RAM Core i3 Windows 10 Add to Cart In-Store Pickup (15 available) Raleigh, Central Ave, Store #1123 Recommendations B ACME Laptop 128GB SSD, 8GB RAM $323.56 Touchscreen 128GB SSD 8GB RAM Core i3 Windows 10 Add to Cart In-Store Pickup (15 available) Raleigh, Central Ave, Store #1123
  • 66. At 1-week deployment intervals? https://m.signalvnoise.com/the-majestic-monolith-29166d022228#.4skbfc2gj Majestic Monolith https://developers.redhat.com/blog/2016/10/27/the-fast-moving-monolith-how- we-sped-up-delivery-from-every-three-months-to-every-week/ Assess whether this meets your needs!
  • 67. Not yet fast enough? Shrink your elephant!
  • 68.
  • 69. • The network is reliable. • Latency is zero. • Bandwidth is infinite. • The network is secure. The first rule of distributed computing is DO NOT! https://en.wikipedia.org/wiki/Fallacies_of_distributed_computing • Topology doesn't change. • There is one administrator. • Transport cost is zero. • The network is homogeneous. Fallacies of Distributed Computing
  • 71.
  • 72.
  • 73.
  • 74.
  • 75.
  • 76.
  • 77.
  • 78.
  • 79.
  • 80. Your Monolithic Database (Your DBA will kill you.) Download a copy of Edson’s book at developers.redhat.com There’s an Elephant in the Room
  • 81. java -jar myapp.jar DropWizard www.dropwizard.io JAX-RS API First to market DropWizard Metrics Embeddable servers: Jetty Spring Boot projects.spring.io/spring -boot Spring API (@RestController) ‘Starter’ POMs: start.spring.io Embeddable servers: Tomcat, Jetty, Undertow WildFly Swarm wildfly-swarm.io Java EE 7 APIs ‘Starter’ POMs: wildfly-swarm.io/gen erator Embeddable servers: WildFly (Undertow) Vert.x vertx.io Reactive Async/non-blocking vertx run myhttp.java HTTP, HTTP/2, TCP, UDP, Websockets, etc out-of-the-box
  • 83. CHAPTER 2: The Exception that Grounded an Airline The delays were shown on Good Morning America (complete with video of pathetically stranded single moms and their babies) …
  • 84. VERIZON OUTAGE CRASHES JETBLUE AIRLINES’ ELECTRONICS SYSTEMS, DELAYING FLIGHTS AND BRINGING DOWN ONLINE SITES FOR BOOKING AND CHECK-IN January 14, 2016. A Verizon data center outage Thursday morning brought down JetBlue’s electronic systems, causing flight delays and shutting down the airline’s website, along with its online booking and check-in systems.
  • 85. SOUTHWEST AIRLINES SYSTEM OUTAGE BRINGS FLIGHTLINE TO FULL GROUND STOP, DELAYS AND MADDENS PASSENGERS July 21, 2016. Southwest Airlines has cancelled 1,150 flights since the airline's full ground stop for on Wednesday. The trouble started with a "system outage," and the ground stop lasted for just over an hour.
  • 86. DELTA AIRLINES SAYS THE TOTAL BILL FOR ITS DEVASTATING COMPUTER OUTAGE WILL COME TO $150 MILLION, AUGUST 8, 2016 COMPUTER OUTAGE GROUNDS DELTA FLIGHTS IN U.S., JANUARY 17, 2017
  • 87. Digital Darwinism The Developer’s Journey Self-Service, On-Demand, Elastic Infrastructure Automation Puppet, Chef, Ansible, Kubernetes CI & CD Deployment Pipeline Advanced Deployment Techniques Microservices (and flying elephants!) Re-Org to DevOps
  • 88. If we don’t create the thing that kills Facebook, someone else will. ‘Embracing change’ isn’t enough. It has to be so hardwired into who we are that even talking about it seems redundant. Facebook’s Little Red Book
  • 89. 1. Learn Linux, AWS/GCP/Azure, Docker & Kubernetes 2. Start an Email List 3. Every other week Demo Day 4. Opposite every other week Book Club 5. Quarterly Mini-Conference—internal and external presenters 6. Document your Value Stream Map