SpringOne Platform 2017 Prasad Bopardikar, Pivotal; Colin Stevenson, Pivotal "We all know Cloud Foundry is a great platform for cloud-native applications. However, what happens when you’re building an app that leverages services from public cloud providers such as Microsoft, Google and Amazon? Service brokers make it easy to spin up service instances and bind to apps. What about the actual code itself? Developers leverage the popular Spring Boot framework to quickly build Java apps to deploy to Cloud Foundry. The Spring Boot Starters and Auto-Configuration eliminate the need to write boilerplate code to consume some services, but not all. We’ve decided to give you a head start. This session is about extending the Spring framework. We’ll use examples from our recent work with Microsoft Azure, Google Cloud Platform and Amazon AWS services. As more services become available, developers will want to consume these on Cloud Foundry. Extend Spring to make it easier for developers to consume those backing services!"

1. Quickly Build Spring Boot Apps to
Consume Public Cloud Services
Colin Stevenson - Pivotal Partner Architect, @cwsteve
Prasad Bopardikar - Pivotal Partner Architect, @PrasadB26
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2. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Wait… this seems familiar
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3. Thank you!
Microsoft and Google
Java and Service Broker Teams

4. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
We have service brokers!
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5. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
What’s in the box?
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BigTable
BigQuery
Cloud SQL
Cloud Storage
Cloud Pub/Sub
Machine Learning
Spanner
StackDriver Debugger
StackDriver Trace
SQL DB
BLOB Storage
CosmosDB
Azure Redis Cache
Service Bus
Event Hubs
MySQL
PostgreSQL
RDS PostgreSQL
RDS MySQL
RDS SQL Server
RDS Oracle Database
RDS MariaDB
S3
Aurora
DynamoDB
SQS
EMR (coming soon)

6. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
What about vendor lock in?
• Open Service Broker API to the rescue!
• Deploy the brokers to any Cloud Foundry deployment anywhere.
• Consider the benefits of managed cloud services.
• Do you really want to administer that highly available database?
• Don’t let Perfect be the enemy of Good
• No analysis paralysis!
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7. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
We have service creds – now what?
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8. Who has parsed VCAP Services
without Spring Boot?

9. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
The “hard way”
1. Write code to read VCAP_SERVICES credentials from the environment
2. Add JSON dependencies and parse the VCAP_SERVICES JSON to extract
the credential values
3. Add the dependencies for the libraries provided by the service provider for the
type of service.
4. Write code to instantiate the appropriate beans. Examples:
• com.google.cloud.storage.Storage
• com.microsoft.azure.documentdb.DocumentClient
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10. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Spring Boot to the Rescue!
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11. Demo Time!

12. Spring Boot Starters Demo App
Azure Storage Container
App
Gateway
Pivotal Cloud Foundry
Demo App
GCP Storage Bucket
Upload image
Upload image to Azure storage
Upload image to GCP storage

13. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
The “hard way”
1. Write code to read VCAP_SERVICES credentials from the environment
2. Add JSON dependencies and parse the VCAP_SERVICES JSON to extract
the credential values
3. Add the dependencies for the libraries provided by the service provider for the
type of service.
4. Write code to instantiate the appropriate beans. Examples:
• com.google.cloud.storage.Storage
• com.microsoft.azure.documentdb.DocumentClient
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14. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
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15. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Key Takeaways
• Use Spring Boot!!!
• Use the Service Brokers wherever you can – the Brokers
are evolving.
• If you are writing CF apps to consume Azure/GCP services,
use the Starters
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16. Unless otherwise indicated, these slides are © 2013 -2016 Piv otal Software, Inc. and licensed under a
Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Resources
https://github.com/Microsoft/azure-spring-boot
https://github.com/spring-cloud/spring-cloud-gcp
https://seroter.wordpress.com/2017/11/02/trying-out-microsofts-spring-boot-
starters/
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17. Learn More. Stay Connected.
Check out all the Starters, provide feedback!
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#springone@s1p