I’ve mentioned a number of the Fastlane tools such as Match for easy code signing among teams.
The Fastlane tools automate many tedious deployment tasks for iOS developers, and are very helpful for those setting up a continuous integration server (CI).
Here’s an extensive tutorial submitted by Xmartlabs showing how to set up continuous integration with Xcode server and Fastlane.
The tutorial explains how to set up Xcode server, create your Xcode bots to notify committers of any issues, deploy your project, and how to troubleshoot issues that may come up.
You can find the tutorial on the Xmartlabs site.
You can find the Fastlane tools on Github here.
A nice guide for those looking set up a CI server.