Programming for PaaS by Carlson, Lucas -- Read -- Imperial Library of Trantor

Index

Programming for PaaS Dedication Preface

Programming Is Hard Writing Code That Works on PaaS Audience The Structure of This Book Conventions Used in This Book Using Code Examples Safari® Books Online How to Contact Us Acknowledgments

1. The Cloud for Developers

The Developer’s Plight What the Cloud Has Done for Innovation The Cloud: A Brief History for Programmers

Introducing APIs Along Comes DevOps The Arrival of Application Lifecycle Management The Next-Generation Cloud with Platform-as-a-Service

The Core of the Cloud Managed Platforms versus Productized Platforms The Cloud’s Promise (or Hype) The Cloud in Five Years The Promise Fulfilled

2. What Is PaaS?

Conjuring a Website Early Options for Developers

Shared Web Hosting Dedicated Hosting

Colocated servers Managed servers Virtual private servers Infrastructure-as-a-Service Comparing costs

PaaS: The Best of Both Worlds

The Developer’s Holy Grail Sharing the Load Language Considerations PaaS Pricing Is PaaS Really New or Just IaaS++?

Looking at atomic units IaaS versus PaaS

PaaS: A Vital Tool for Modern Apps

Moving Toward Higher-Level Languages Managing the Backend

Conjuring Confidence

3. Types of PaaS

Non-Portable: Following a Template

Force.com Google App Engine Windows Azure Non-Portable Conclusion

Portable: No Heavy Lifting Required

Heroku Cloud Foundry AppFog dotCloud CloudBees

Summary: Where Do You Want to Live? Dealing with Legacy and Greenfield Apps Tapping Into Services Moving Toward Open Standards

The Allure of Open Source Evaluating Your Legacy

4. Moving Legacy Apps to PaaS

Initial Considerations

Sidestepping Potential Problems Common Questions to Ask Yourself Even More Legacy Code Issues

Overview Asset Hosting

All About Blob PHP with Amazon S3 Node.js with Azure Blob Service Generalized Asset Hosting Functions in Ruby for Rackspace Cloud Files Uploading with Plug-ins

Session Management

PHP Node.js Ruby Java

Caching

Filling In the Pieces Caching with memcached in PHP Caching with MongoDB in Node.js Generalized Caching Functions in Ruby for Redis

Asynchronous Processing

Serving Up Stored Data How to Create Asynchronous Processes More Advanced Scheduling of Background Tasks

SQL

The Dilemma of Stored Procedures

NoSQL Miscellaneous Gotchas

The Optimization Trap Starting from Scratch A Final Note on Legacy Apps

5. Writing New Apps for PaaS

Breaking Down the Monolith

Independent Thinking

Leveraging APIs for Mobile Development The Emergence of JSON and REST

A Look at JSON A Look at REST A Look at Metaservices

Consuming RESTful Metaservices

Application Clients Mobile Clients Thin Web Clients Thick Web Clients

The Unique Contribution of PaaS

Four Important Benefits

Agility Time to market Scalability Interoperability

A Solution for Enterprises and Governments

The Effect of Moore’s Law

6. Mobile Apps on PaaS

A Brief History of Mobile App Development The Apps of the Future Data Structures

JSON and XML

Consuming Metaservices in Mobile Clients

iOS

iOS framework for REST: RestKit

Android

Android framework for REST: Restlet

How PaaS Makes Mobile Backend Development Easier

It’s Fast to Build Mobile Backend Metaservices It’s Easy to Scale Metaservices with PaaS It’s Easy to Pick the Right Underlying Core Services Portable Interfaces Can Be Used on Many Devices

Serving a Large Audience

7. A Look at Core Services

Non-PaaS Core Services Evaluating PaaS for Services Saving Time with Managed Databases and PaaS

SQL NoSQL

Caches and PaaS: Look for Redundancy Solving the Challenges of Email The Importance of Monitoring

Considering Your Options Taking the Long View

Load Testing Planning an Upgrade Path

Storage Options

8. Why Not PaaS?

Public Cloud versus Private Cloud

What Is Private Cloud?

How to Choose: Small- and Medium-Sized Businesses

Open and Closed

How to Choose: Enterprise Businesses The Limitations of PaaS

Fitting Your App into the Mold More Considerations Avoiding Limitations

Encountering Resistance Putting the Limitations in Perspective

9. The Future of PaaS

The Influence of OpenStack Keeping Your Development Options Open Outages: Your Biggest Problem Regaining Control Through Open Source

Micro Magic Limitations of Open Source PaaS Libraries The Virtues of Versatility

Final Thoughts

10. Resources

PaaS Providers IaaS Providers Managed Services

Data storage: MySQL Data storage: PostgreSQL Data storage: CouchDB Data storage: MongoDB Data storage: NoSQL Data storage: Redis Data storage: Caching Mobile Search Logging Email Background Tasks Analytics Error Monitoring Utilities Payments

Migrating Legacy Apps to PaaS

WordPress Plug-ins Drupal Modules Joomla! Plug-ins

Greenfield PaaS App Development

Ruby Python Node.js PHP Java .NET Perl

Index About the Author Colophon Copyright

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