Swift™ in the Cloud	3
	About the Authors	9
	About the Technical Editor	11
	Credits	13
	Acknowledgments	15
	Contents at a Glance	17
	Contents	19
	Introduction	25
	1 Swift.org, the Open Source Project	37
	What’s Included	37
	Source Code Repositories	38
	How to Get Involved	41
	Mailing Lists	43
	Bug Tracking	44
	Swift Evolution and Roadmap	48
	Priorities for the Swift 4.0 Major Release	50
	Binary Downloads	50
	MacOS Binaries	51
	Linux Binaries	52
	Swiftenv, Swift Version Manager	53
	Summary	53
	2 A Swift Sandbox in the Cloud	55
	The IBM Cloud Platform	55
	Getting Started	62
	Sign Me Up!	62
	Saving and Sharing Code Samples	64
	Selecting Swift Versions and More	66
	Have You Run on a Mainframe Lately?	66
	IBM Swift Package Catalog and Sandbox	68
	Summary	69
	3 A Basic Introduction to Swift	71
	Background	71
	Let’s Get Coding!	71
	Swift Standard Library	71
	Swift Foundation Library	73
	C Library Interoperability	75
	Concurrency Library	77
	Memory Management	79
	The Language Landscape	84
	Language Groupings	84
	Language Timeline	86
	Summary	87
	4 The IBM Bluemix Buildpack for Swift	89
	Cloud Foundry Buildpacks	89
	Buildpack Phases	90
	Working with the IBM Bluemix Buildpack for Swift	91
	Where Is the Source Code Hosted?	91
	What Version of the Buildpack Is Currently Installed?	92
	File Artifacts Required for Provisioning Your Application on Bluemix	94
	Installing Additional System-Level Dependencies	97
	Downloading Closed Source Dependencies	104
	Examples of Using the IBM Bluemix Buildpack for Swift	105
	Swift HelloWorld	105
	Kitura Starter	110
	BluePic	113
	Using the Latest Code of the IBM Bluemix Buildpack for Swift	123
	Summary	124
	5 Using Containers on Bluemix to Run Swift Code	127
	What Are Docker Containers?	127
	Docker Images for Swift	128
	Installing Docker	129
	Using Docker as a Development Tool	130
	Exposing Your Swift Application’s Port to the Host System	132
	Using docker-compose	132
	Why Use Containers on Bluemix?	134
	Containers for Packaging and Deployment of Swift Applications	135
	The Kubernetes Platform	135
	Running Your Docker Image in the Bluemix Cloud	136
	Install the Kubernetes Command Line	136
	Install the Bluemix Command Line	136
	Install the IBM Container Registry Plug-In	138
	Install the IBM Container Service Plug-In	138
	Create a Runtime Image for Swift Applications	139
	Tag a Docker Image	142
	Push a Docker Image to Bluemix	143
	Create a Kubernetes Cluster on Bluemix	144
	High Availability in Kubernetes Clusters	148
	Binding Bluemix Services to IBM Containers	149
	Summary	152
	6 Swift Package Management	155
	Swift Package Manager	155
	Using Swift Package Manager	156
	Commands	157
	Package.Swift Details	159
	Swift Package Catalog	159
	Browsing	159
	Searching	160
	Package Details	162
	Dependency Visualization	163
	Trying Out a Package in the Sandbox	164
	Summary	166
	7 Swift and Kitura for Web Applications	167
	Kitura	169
	Sending Simple Responses to Requests	172
	A Real-World Library Example	173
	Accessing Information Sent in Requests	174
	Starting the Library Application	176
	Working with Various HTTP Features Using Kitura	185
	Other Ways of Serving Content Using Kitura	191
	Other Useful Kitura Middleware	193
	Authentication Using the Kitura-Credentials Framework	195
	The Library Sample with Authentication	196
	Kitura and Data Access	199
	Swift-Kuery	199
	Kitura-redis	206
	Summary	209
	8 Serverless Programming with Swift	211
	Microservices and Serverless Computing	211
	Serverless Computing Concepts	213
	OpenWhisk	215
	Swift and OpenWhisk	218
	Using the Web-Based OpenWhisk Tools	219
	Command Line OpenWhisk	225
	A More Involved Example	231
	Summary	237
	9 Over the Horizon: Where Do We Go from Here?	239
	Bringing Swift to the Server	239
	IBM Cloud Tools for Swift	240
	Server-Side Frameworks	246
	Expanding the Range of Swift	251
	Swift Support for Linux	251
	The Internet of Swift Things	251
	Big Iron Swift	252
	Swift DevOps	254
	Summary	255
	Index	257
	EULA	267