Technology Primer: Building Applications the New-Fashioned Way

Technology Primer: Building Applications the New-Fashioned Way

Chris Kraus

DevOps: Continuous Delivery

CA Technologies

Product Manager

DO4X125S

@ChrisKraus3

#CAWorld

2 © 2015 CA. ALL RIGHTS RESERVED.@CAWORLD #CAWORLD

For Informational Purposes Only

Terms of this Presentation

© 2015 CA. All rights reserved. All trademarks referenced herein belong to their respective companies. The presentation provided at CA

World 2015 is intended for information purposes only and does not form any type of warranty. Some of the specific slides with customer

references relate to customer's specific use and experience of CA products and solutions so actual results may vary.

Certain information in this presentation may outline CA’s general product direction. This presentation shall not serve to (i) affect the rights

and/or obligations of CA or its licensees under any existing or future license agreement or services agreement relating to any CA software

product; or (ii) amend any product documentation or specifications for any CA software product. This presentation is based on current

information and resource allocations as of November 18, 2015, and is subject to change or withdrawal by CA at any time without notice. The

development, release and timing of any features or functionality described in this presentation remain at CA’s sole discretion.

Notwithstanding anything in this presentation to the contrary, upon the general availability of any future CA product release referenced in

this presentation, CA may make such release available to new licensees in the form of a regularly scheduled major product release. Such

release may be made available to licensees of the product who are active subscribers to CA maintenance and support, on a when and if-

available basis. The information in this presentation is not deemed to be incorporated into any contract.


Abstract

Welcome to the application economy, where every company is a software company. You are challenged to build applications faster, cheaper and better, but can't seem to achieve all three goals at the same time. In this presentation, you will learn where the bottlenecks occur in application development and how you can spot defects earlier in the process, automate your testing and build better apps. CA Continuous Application Insight provides deep transaction insight into your Web and mobile applications, allowing developers to identify issues much earlier, make changes and produce cleaner code. The result is a better app and a dramatically improved customer experience.

Chris Kraus

CA Technologies

Product Manager


Agenda

HOW ARE YOU BUILDING APS? FROM CONTRACT OR ON TOP OF LEGACY?

VISIBILITY WHEN BUILDING ON TOP OF INHERITED APPLICATIONS

Q&A

FIND THOSE SLOW ITEMS AND LOG MESSAGES

VIRTUALIZE AWAY YOUR BLOCKERS

GENERATE API TESTS AS YOUR CONSUMPTION CONTRACTS

1

2

3

4

5

6


Are You Building Your Applications From Contract or on Top of Legacy?

New mobile or web development means you get the edge of technology– Latest platform iOS, Android, Chrome and Firefox browsers

with HTML5

– REST, JSON, Swagger 2.0

User Journeys are on the tip of the tongue for developers and Product Owners

Contracts first development helps team collaborate on data


Early Development – Contract Based First

GET http://10.139.4.170:3434/cars-app/api/validate HTTP/1.1

{"access_token": "br73egja4qkcdd7mnf3dvgtfe6d9o053”,"firstname": "chris","lastname": "kraus","roles": [

"ROLE_USER"],"token_type": "Bearer","username": "chrisk"

}

/cars-inventory/carInventory[

{"carTrim": "Premium Plus","class": "com.ca.lisa.demo.CarInventory","color": "Silver","dealer": {

"address": "3800 Motor City Dr","city": "Denver","class": "com.ca.lisa.demo.CarDealer",


Contract First Development – Simplicity in Moving Parts

Generate virtual service from: – Specifications

– Samples

Hosted Service Virtualization for Developers

Azure – CA Service Virtualization

On premise CA Service Virtualization

RAMLSwagger 2.0

WSDLWADL

Sample Request

Response data


Bi-Modal IT Building Applications on Top of Existing Systems and Systems of Record

New visualization and workflows

Heavy dependencies on legacy systems for data

Multiple layers of black boxes in technology

ESB


How to I figure Out What is Below the UI and if I Can Leverage?

Deploy DevTest agents

Run transactions in the system

CA Continuous Application Insight provides the details

ESB


CA Continuous Application Insight

MOVE FROM THE WHITEBOARD DRAWING TO LIVE SYSTEMS VIEWS


Payload Visibility


Find Those Slow Items and Log Messages –the Easy Way

Modern applications are composites

of multiple backend servers

During development is the best place

to start thinking of performance

Assumption is code does not magically get

relatively faster on different hardware

Finding the slow part in a path is now

easily visualized in portal


Find Slow Code and Blockers


Use Counts in Paths


Find Those Slow Items and Log Messages –the Easy Way

Great thing about system logs is there’s tons of data in there

Problem is log files can be 100 of megabytes

Finding reoccurring error messages is difficult and requires slicing

and dicing

Understanding the code emitted the message requires code access

It is even more difficult to understand the context of the application

that emitted the message


Payload Visibility Log Messages in Context of Transaction


Most Common Called Code


Types of Code Run with Response and Logs


Most Common Log Messages


Exceptions Thrown in Code


Virtualize Away Your Blockers

Visibility comes with advantages, you can view and isolate your development

Virtualize away– 1 step away from your development work

– Problem or unreliable systems

– Test data problems

Build regression tests at API layer for any layer of the application

Build the DevTest Sandwich to more robust regression testing


Start High Level with Your Application Topology


Virtualize Away a Server Used by Multiple Clients


Generate API Regression Tests Automatically


Isolate Systems with DevTest Sandwich

ESB

Use API tests to simulate the system or regress functionality

Stabilize the backend system response time, data, and availability with virtual services

Consistency on either side of the SUT isolates changes and provides less false failures in testing


Generate API Test’s as Your Consumption Contracts

As a consumer of API’s you owe API tests that represent your use of the

API to the service producers

API tests provide a easy to run contract of consumption, UI testing usually

involves unnecessary system setup and brittle tests

API tests create horizontal trust across organizational boundaries, move

test closer to the application, and earlier in the SDLC

Failing tests is a much better warning of changings in application behavior

than failing complex multi-layered applications


Document Transactions to API Functional Tests


Building Horizontal Trust

Consumers of shared

services or common API’s

exist across business

unit boundaries

Mistrust prevents leveraging

common services

Mobile

Accounts

Rich Client

Accounts

Treasury

Services

Shared Services

Common API’s

1 Small Change no one will notice

Application failures


Building Horizontal Trust

Failing regression tests

are opportunities to

resolve failures before

production

API tests can be run on

partially deployed

systems early in CD

workflow

Mobile

Accounts

API Tests

Rich Client

Accounts

API Tests

Treasury

Services

API Tests

Shared Services

Common API’s

1 Small Change no one will notice

Regression failures


Q & A


Demo – User Journey API tests

Generate Functional test

Document Transactions

Generate Functional test

Chrome plugin


Handle Dynamic Data

The user data along with returned data from the application is dynamic. Generated tests are data driven and parameter driven to ensure they actually run.

Follow the user Journey

Applications are API’s used in the order of the User Journey through the application. The order of the API’s makes a difference.

Generate API test

API tests are easily generated to follow the user journey. The API’s are more stable then automating the UI’s.

The API’s should be leveraged in multiple applications.

SummaryA Few Words to Review


Recommended Sessions

SESSION # TITLE DATE/TIME

DO3X113SCase Study: DBS Shares Its Continuous Delivery Journey

as a Global Financial Institution11/19/2015 at 3:00 pm

DO3X114S

Freeing the World from Slow: How Service Virtualization

and the Concept of S.P.E.E.D. Will Steer You Away from

Committing Continuous Delivery Suicide

11/19/2015 at 3:45 pm

DO3T22SBusiness Transformation: DevOps for a 10-Year-Old

(Codebase)11/19/2015 at 4:30 pm


Must See Demos

Application Test DemoCreate Better Application Tests

Theater 4

DevOps Sim

DevOps Simulation Experience

Theater 3

Continuous App InsightAutomate Tests for Better Apps

Theater 4

Service VirtualizationDeliver Better Apps Faster with SV

Theater 3


Follow On Conversations At…

Smart Bar

Theaters 3 & 4

Tech Talks

Theaters 3 & 4


For More Information

To learn more, please visit:

http://cainc.to/Nv2VOe

CA World ’15

http://cainc.to/Nv2VOe

http://bit.ly/1wbjjqX