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Texas.gov Cloud Migration• Heidi Langdon, DIR• Vinkesh Mehta, Deloitte
Texas.gov• Houses access to hundreds of government services online so you can:
• Renew your driver license• Order a new birth certificate• Find a job with the state• Update the name on your voter registration card• Get a permit to sell Fireworks to the public• Purchase an amusement ride compliance sticker for your
Ferris wheel• & more!Without leaving the comfort of your home.
The FoundationThe first Texas.gov application was developed in 2001
The SprawlTexas.gov has grown to include 6 websites and 44“applications”.
Starting place - Fragmented Architecture, 7+ different stacks/frameworks1. RAP FRAMEWORK – 11 INSTANCES
Language Java
App Server WebLogic
ESB Oracle SOA
Database Oracle/ Mongo
OS Solaris
Language Java
App Server WebLogic
ESB Oracle SOA
Database Oracle/ Mongo
OS Solaris
Language Java
App Server WebLogic
ESB Oracle SOA
Database Oracle
OS Solaris
2. FEEPAY GRAILS FRAMEWORK –1 INSTANCE
Language Grails
App Server
WebLogic
ESB Oracle SOA
Database Oracle/ Mongo
OS Solaris
Language Grails
App Server
WebLogic
ESB Oracle SOA
Database Oracle/ Mongo
OS Solaris
Language Grails
App Server
Tomcat
ESB Oracle SOA
Database Mongo/ Oracle
OS Linux
3. FEEPAY LITE FRAMEWORK – 14 INSTANCES
Language Grails
App Server WebLogic
ESB Oracle SOA
Database Oracle/ Mongo
OS Solaris
Language Grails
App Server WebLogic
ESB Oracle SOA
Database Oracle/ Mongo
OS Solaris
Language Grails
App Server Tomcat
ESB Oracle SOA
Database Mongo/ Oracle
OS Linux
4. FEEPAY .NET FRAMEWORK – 2 INSTANCES
Language .NET
App Server WebLogic
ESB Oracle SOA
Database Oracle/ Mongo
OS Solaris
Language .NET
App Server WebLogic
ESB Oracle SOA
Database Oracle/ Mongo
OS Solaris
Language .NET
App Server IIS
ESB Oracle SOA
Database Oracle
OS Windows
5. ORIGINAL FRAMEWORK –10 INSTANCES
Language Java
App Server WebLogic
ESB Oracle SOA
Database Oracle/ Mongo
OS Solaris
Language Java
App Server WebLogic
ESB Oracle SOA
Database Oracle/ Mongo
OS Solaris
Language Java
App Server WebLogic
ESB Oracle SOA
Database Oracle
OS Solaris
6. PROFILE FRAMEWORK – 7 INSTANCES
Language Java
App Server
WebLogic
ESB Oracle SOA
Database Oracle/ Mongo
OS Solaris
Language Java
App Server
WebLogic
ESB Oracle SOA
Database Oracle/ Mongo
OS Solaris
Language Java
App Server
WebLogic
ESB Oracle SOA
Database Oracle
OS Solaris
7. CUSTOM JAVA – 46 INSTANCES
Language C#, Groovy, JavaScript, Java, BPEL, PL/SQL
Libraries NopCommerce, Grails, Spring
App Server
WebLogic, Tomcat, IIS, Apache Webserver, Oracle HTTP Server
ESB Oracle SOA
Database Azure MS SQL, Oracle, MongoDB
OS Windows, Solaris, Linux
C U R R E N T S T A T E A N D C H A L L E N G E S
Language C#, Groovy, JavaScript, Java, BPEL, PL/SQL
Libraries NopCommerce, Grails, Spring
App Server
WebLogic, Tomcat, IIS, Apache Webserver, Oracle HTTP Server
ESB Oracle SOA
Database Azure MS SQL, Oracle, MongoDB
OS Windows, Solaris, Linux
Language C#, Groovy, JavaScript, Java, BPEL, PL/SQL
Libraries NopCommerce, Grails, Spring
App Server
WebLogic, Tomcat, IIS, Apache Webserver, Oracle HTTP Server
ESB Oracle SOA
Database Azure MS SQL, Oracle, MongoDB
OS Windows, Solaris, Linux
Is it time to move?• Excess Cost
• Currently incurring server charges for instances 24/7/365, even if they are not actively in use
• Slow Scalability• Requires proactive monitoring, request
submission and manual allocation of additional CPU/storage
• Disaster Recovery• Backups must be run and stored ($$)
just in case• Manual intervention required to re-
route traffic to alternate data center
Is the grass really greener?The “cloud” promises:• Cost
• Infrastructure as code, spin up and down as needed
• Scalability • Monitoring with pre-determined thresholds for auto provisioning
• Disaster Recovery• Opportunity to employ real time failover
Where do we begin?• Moving a small house
via straight, well paved roads, in a sparsely populated area is relatively “easy”.• Transporting a multi-
level structure, via narrow windy streets, is a totally different exercise.
How do we get there?• Before you move, you need to plan your exact
route and drive it once or twice to uncover hidden hazards.
Texas.gov Modernization - Guiding Principles
Architectural Simplicity
Modern Open Source Innovation
Modern User Experience
Service Oriented, Layered & Modular
Automated, Scalable Infrastructure
1. Migrate infrastructure to GovCloud.
2. Migrate OS from Solaris to Linux.
3. Migrate application server from WebLogic to Jboss.
6. Update BPEL services to REST based microservices architecture.
7. Prioritize and modernize applications.
Deloitte Digital to modernize user experience and business process.
4. Migrate database from Oracle to AWS RDS.
5. Modernize batch architecture and operations.
SPRING BOOT MICROSERVICES
REDHAT
DATA CENTER INFRASTRUCTURE
DATABASES
BATCH
SOA
APPLICATIONS
AWS GOV CLOUD
DATABASES
SOA
APPLICATIONS
AWS GOV CLOUD
DATABASES
SPRING BATCH, OPCON,…
SOA
APPLICATIONS
AWS GOV CLOUD
DATABASES
SPRING BATCH, OPCON,…
APPLICATIONS
AWS GOV CLOUD
DATABASES
SPRING BATCH, OPCON,…
SPRING BOOT MICROSERVICES
HTML/REACT JS
WEBLOGIC JBOSS EAP JBOSS EAP JBOSS EAP JBOSS EAP
OS REDHAT REDHAT REDHAT
BATCH
Legacy Modernization StagesT E X A S . G O V M O D E R N I Z A T I O N A P P R A O C H
Texas.gov Architecture
E D G E S E C U R I T Y S E R V I C E S L A Y E R
T E X A S . G O V M I C R O S E R V I C E L A Y E R
DPS Backend Services• Facial Recognition • Update DL Photo• DL Change Address
• DL Renewal
IDology• ID proofing Services
NIC• Payment Services
Texas.gov MobileApps
Texas.gov Responsive Web App
Other Agencies• DMV• BON• TDLR
Apple• Wallet Integration• Push notification
C L O U D S E R V I C E S L A Y E R
Texas.gov Responsive Web Application
React.js
Layout Service Composite UI
WorkFlow Help
Validation Multilingual
Error HandlerService Composite UI
Service Composite UI
HTML 5
CSS 3
C O M P O S E D S I N G L E P A G E A P P L I C A T I O N S
Presentation Layer – Logical Diagram (Responsive Web Application)T E X A S . G O V A R C H I T E C T U R E
Texas.gov Application Services LayersT E X A S . G O V A R C H I T E C T U R E
API GATEWAY IDENTIFY ACCESS MANAGEMENT
TEXAS.GOV MICRO SERVICES
WorkFlow
Audit Reporting
Content
Payment Security
Authentication Lookup Verification
USAS
Summary
Text AnalyticsEmail MonitoringFile Transfer
REST
Spring Boot
ElastiCache Simple Queue Service
Aurora RDSSimple Email Service
Tomcat/JBoss
RedHat Linux
B U S I N E S S M I C R O S E R V I C E S
C O R E M I C R O S E R V I C E S
P R E S E N T A T I O N M I C R O S E R V I C E S
Cloud Services
EDGE SECURITY SERVICES LAYER
CLOUD SERVICES LAYER
JWT/OAuth
Web Application Firewall
Texas.gov Modernization• What worked• Cloud – Software defined Infrastructure as code• Cloud – SaaS services• Reusable UI library• Microservices - Simplified, lightweight Architecture• Open Source based components• CI/CD pipeline
Texas.gov Modernization• Cloud Challenges• Using Infrastructure as code needs skills and time
• 3-6 months initial ramp up to create mature reusable scripts• Cloud – Not all services are currently available in GovCloud
• More are coming everyday• Security
• Cloud has all the tools needed to build robust security but needs skills and time.
Thank you
Questions?
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