The document discusses the integration of APIs and DevOps within the mainframe environment, highlighting contributions from Broadcom and IBM towards the Zowe open source framework. It covers key components such as the API mediation layer, use cases of mainframe integration with ServiceNow, and features supporting modern application development and operations. Additionally, it emphasizes the necessity for modernization due to a widening skills gap in mainframe technologies and explores future developments in API offerings.

1. 1 Copyright © 2019 Broadcom. All Rights Reserved. The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.|Broadcom Proprietary and Confidential. Copyright © 2018 Broadcom. All Rights Reserved. The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.Copyright © 2019 Broadcom. All Rights Reserved. The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
Mainframe APIs &
Modern DevOps
May 21, 2019
Michal Supak, Broadcom & Guilherme Cartier, IBM

2. 2 Broadcom Proprietary and Confidential. © 2019 Broadcom. All Rights Reserved. "Broadcom" refers to Broadcom Limited and/or its subsidiaries.| Broadcom Standard Technology
Panelists
Michal Supak, Broadcom
As Product Manager in Broadcom’s Mainframe Division, Michal is
responsible for the API Mediation Layer component of CA
Brightside which, earlier in the year, was contributed to the Zowe
open source framework. Michal began his career with CA
Technologies as a Software Engineer and has held Product Owner,
Manager of Software Engineering, and Scrum Master roles.
Based in Prague, he holds a Master of Science degree in Robotics
and Automation Engineering and received a patent for visualizing
resource relationships stored in SQL tables within a mainframe
environment.
Guilherme Cartier, IBM Global Services
A recognized industry speaker, Cartier is a Global Mainframe
Automation Specialist with IBM Global Technology Services, where
he is responsible for solution development as well as evaluating
new technologies to improve Mainframe services across all delivery
teams. Based in Sao Paulo, Cartier has been with IBM since 2013
and has previous experience as a Production Analyst supporting
both the Mainframe and Distributed environments.

3. 3 Broadcom Proprietary and Confidential. © 2019 Broadcom. All Rights Reserved. "Broadcom" refers to Broadcom Limited and/or its subsidiaries.| Broadcom Standard Technology
Agenda
● APIs basic Introduction
● REST API & Mainframe platform
● Zowe API Mediation Layer
● Use case - Mainframe Batch environment integration with ServiceNow
● Use case - Displaying mainframe system metrics data in a “home grown”
application
● Future premise of API’s
● Q&A

4. 4 Broadcom Proprietary and Confidential. © 2019 Broadcom. All Rights Reserved. "Broadcom" refers to Broadcom Limited and/or its subsidiaries.| Broadcom Standard Technology
API basic introduction
• API stands for Application Programming interface
• LOCALization of remote resources
• Web API standard interpretation today
• REST (Representational State Transfer) & RESTful design
• 4 major verb GET, POST, PUT, DELETE
• JSON object data format

5. 5 Broadcom Proprietary and Confidential. © 2019 Broadcom. All Rights Reserved. "Broadcom" refers to Broadcom Limited and/or its subsidiaries.| Broadcom Standard Technology
API’s and Mainframe Platform
• > 50 years of Mainframes and 1000’s of APIs around the platform
• Opening up Mainframe platform for integration
• Cloud like expectations - Consistent Access, Scalability, Standardization, SSO
• Zowe
• Mainframe Skills Gap is Widening

6. 6 Broadcom Proprietary and Confidential. © 2019 Broadcom. All Rights Reserved. "Broadcom" refers to Broadcom Limited and/or its subsidiaries.| Broadcom Standard Technology
Open source mainframe interface
for the next generation
ABOUT ZOWE
• Part of Linux Foundation’s Open
Mainframe Project (OMP)
• First open source project based on
z/OS
• Four main components:
• Command line interface
(CLI)
• API Mediation Layer
• Web UI
• Microservices
• Initial contributions from IBM,
Broadcom, Rocket
• Over 2,500 downloads
• v1.0 released February 11th
• Zowe.org
Bridges enterprise devops to the mainframe
Shifts the mainframe balance of power from
vendors/proprietary to community/OSS
Makes mainframe an exciting career choice

7. 7 Broadcom Proprietary and Confidential. © 2019 Broadcom. All Rights Reserved. "Broadcom" refers to Broadcom Limited and/or its subsidiaries.| Broadcom Standard Technology
Internal / IT Facing System API’s
- Provide modern, scalable access to z/OS services, tools and data
- Provide foundation for modern DevOps workflows and user experiences
https://developer.ibm.com/mainframe/2019/01/09/zowe-api-mediation-layer-for-z-os-modern-interfaces-for-development-operation-and-management-apis/

8. 8 Broadcom Proprietary and Confidential. © 2019 Broadcom. All Rights Reserved. "Broadcom" refers to Broadcom Limited and/or its subsidiaries.| Broadcom Standard Technology
• Single point of access
• High availability and Scalability
• Login Authentication
• Standardized documentation
• Microservices architecture
API Mediation Layer
Gateway
Single Secure point of entry to an ecosystem of API services.
Hides Complexity, Highly available, Based on Netflix Zuul
Discovery Service
Discover API’s across many applications, Repository of active
API services. Based on Netflix Eureka
API Catalog
UI Catalog of available API’s with their OpenAPI doc and
service status

9. 9 Broadcom Proprietary and Confidential. © 2019 Broadcom. All Rights Reserved. "Broadcom" refers to Broadcom Limited and/or its subsidiaries.| Broadcom Standard Technology
• Single point of access
• High availability and Scalability
• Login Authentication
• Standardized documentation
• Microservices architecture
API Mediation Layer
Gateway
Single Secure point of entry to an ecosystem of API services.
Hides Complexity, Highly available, Based on Netflix Zuul
Discovery Service
Discover API’s across many applications, Repository of active
API services. Based on Netflix Eureka
API Catalog
UI Catalog of available API’s with their OpenAPI doc and
service status

10. 10 Broadcom Proprietary and Confidential. © 2019 Broadcom. All Rights Reserved. "Broadcom" refers to Broadcom Limited and/or its subsidiaries.| Broadcom Standard Technology

11. 11 Broadcom Proprietary and Confidential. © 2019 Broadcom. All Rights Reserved. "Broadcom" refers to Broadcom Limited and/or its subsidiaries.| Broadcom Standard Technology
POLL #1

12. 12 Broadcom Proprietary and Confidential. © 2019 Broadcom. All Rights Reserved. "Broadcom" refers to Broadcom Limited and/or its subsidiaries.| Broadcom Standard Technology
Mainframe Batch environment integration with ServiceNow
• A use case on the integration between Mainframe Batch environment and
incident management system

13. 13 Broadcom Proprietary and Confidential. © 2019 Broadcom. All Rights Reserved. "Broadcom" refers to Broadcom Limited and/or its subsidiaries.| Broadcom Standard Technology
Personas
Application SupportBatch Operations Support
● Person responsible for the batch environment
support.
● Uses the ServiceNow application to proactively act
on abended jobs.
● Person responsible to support a specific mainframe
application, all services, batch jobs and flows.
● Performs ad-hoc requests in the Mainframe batch
environment.

14. 14 Broadcom Proprietary and Confidential. © 2019 Broadcom. All Rights Reserved. "Broadcom" refers to Broadcom Limited and/or its subsidiaries.| Broadcom Standard Technology
Storyline including API Mediation Layer
• A job abends in the Mainframe Environment
• The Application/Batch support wants a simple to use system where they can
can rapidly take action on jobs and in the same time have it integrated with the
incident management.
• A custom ServiceNow application is developed using native ServiceNow
services to integrate the Incident Management system with Mainframe REST
APIs
• The remediation action is taken in the Mainframe job and automatically
updated in the incident.

15. 15 Broadcom Proprietary and Confidential. © 2019 Broadcom. All Rights Reserved. "Broadcom" refers to Broadcom Limited and/or its subsidiaries.| Broadcom Standard Technology
Use case diagram including API
ML
Workload
Scheduling
Tool
REST
APIs
API Mediation Layer
System
Admin
LPAR1
URL
Ticketing
Custom Batch App
Outbound
system
Business rules
Scripts
App record
Batch operation/
Application
specialists
New
record
Form
action
ServiceNow

16. 16 Broadcom Proprietary and Confidential. © 2019 Broadcom. All Rights Reserved. "Broadcom" refers to Broadcom Limited and/or its subsidiaries.| Broadcom Standard Technology
Displaying mainframe system metric on a “home grown”
dashboard
System Operator
• LPAR Overview
• LPAR Performance Overview
• LPAR Alert Summary and
WTO Display
• CICS Overview
● Monitors and controls the operation of the
MF hardware and software.
● The operator starts and stops system tasks,
monitors the system consoles for unusual
conditions.
● Works with the system programming and
production control staff to ensure the health
and normal operation of the systems.

17. 17 Broadcom Proprietary and Confidential. © 2019 Broadcom. All Rights Reserved. "Broadcom" refers to Broadcom Limited and/or its subsidiaries.| Broadcom Standard Technology
Personas
Mainframe Application
Developer
System Administrator
● Develops modern applications
like e.g. Dashboard for System
metrics monitoring using the
Operational API’s
● Uses modern IDE
● Uses modern Source Code
management tools
● Uses modern code analytics
● Installing software,
maintaining user profiles,
security resource access
lists, managing storage
devices and printers,
managing networks and
connectivity, monitoring
system performance.
● Monitors and controls the operation of the
MF hardware and software.
● The operator starts and stops system tasks,
monitors the system consoles for unusual
conditions.
● Works with the system programming and
production control staff to ensure the health
and normal operation of the systems.
System Operator

18. 18 Broadcom Proprietary and Confidential. © 2019 Broadcom. All Rights Reserved. "Broadcom" refers to Broadcom Limited and/or its subsidiaries.| Broadcom Standard Technology
tUR
Diagram without using API ML
Performance
Monitoring
Tool
REST
APIs
Storage
Management
Tool
REST
APIs
Mainframe App
Developer
System
Admin
LPAR1
Monitoring
application
System
Operator
URL A
URL B

19. 19 Broadcom Proprietary and Confidential. © 2019 Broadcom. All Rights Reserved. "Broadcom" refers to Broadcom Limited and/or its subsidiaries.| Broadcom Standard Technology
Storyline new dashboard app without API ML

20. 20 Broadcom Proprietary and Confidential. © 2019 Broadcom. All Rights Reserved. "Broadcom" refers to Broadcom Limited and/or its subsidiaries.| Broadcom Standard Technology
Storyline new dashboard app without API ML

21. 21 Broadcom Proprietary and Confidential. © 2019 Broadcom. All Rights Reserved. "Broadcom" refers to Broadcom Limited and/or its subsidiaries.| Broadcom Standard Technology
Storyline new dashboard app with API Mediation Layer
• System Operator wants to have a simple dashboard application to monitor an
LPAR Performance.
• System administrator installs API Mediation Layer which provides visibility
over the API services. After successful installation all REST API services are
discovered.
• Mainframe Application Developer goes to API Catalog to see what API’s are
available to accelerate the development. He/she finds well documented
endpoints which just serves the purpose and so the coding can begin.
• Mainframe Application Developer

22. 22 Broadcom Proprietary and Confidential. © 2019 Broadcom. All Rights Reserved. "Broadcom" refers to Broadcom Limited and/or its subsidiaries.| Broadcom Standard Technology
Diagram using API ML
Performance
Monitoring
Tool
REST
APIs
Storage
Management
Tool
REST
APIs
API Mediation Layer
API Catalog
Discovery
API Gateway
Authentication
Mainframe App
Developer
System
Admin
LPAR1
Monitoring
application
System
Operator
URL

23. 23 Broadcom Proprietary and Confidential. © 2019 Broadcom. All Rights Reserved. "Broadcom" refers to Broadcom Limited and/or its subsidiaries.| Broadcom Standard Technology
Storyline new dashboard app with API ML

24. 24 Broadcom Proprietary and Confidential. © 2019 Broadcom. All Rights Reserved. "Broadcom" refers to Broadcom Limited and/or its subsidiaries.| Broadcom Standard Technology
POLL #2

25. 25 Broadcom Proprietary and Confidential. © 2019 Broadcom. All Rights Reserved. "Broadcom" refers to Broadcom Limited and/or its subsidiaries.| Broadcom Standard Technology
Future premise of API’s
• API Mediation Layer (Growing offering of API’s)
• Broadcom, IBM, Rocket investing in API’s
• Open sourcing REST API Sample for legacy teams
• Open sourcing Spring Boot Enablers for easy integration
• Zowe.org
• Brightside Enterprise Zowe Support

26. 26 Copyright © 2019 Broadcom. All Rights Reserved. The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.|
Q&A
Replay @ ca.com/Brightside (Resources)