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Capistrano vs Rex: What are the differences?
Capistrano: A remote server automation and deployment tool written in Ruby. Capistrano is a remote server automation tool. It supports the scripting and execution of arbitrary tasks, and includes a set of sane-default deployment workflows; Rex: the friendly automation framework. Rex is an automation framework that combines Perl and Secure Shell (SSH) for a portable and highly flexible approach to data center infrastructure management and software deployment.
Capistrano and Rex belong to "Server Configuration and Automation" category of the tech stack.
Some of the features offered by Capistrano are:
- Reliably deploy web application to any number of machines simultaneously, in sequence or as a rolling set
- Automate audits of any number of machines (checking login logs, enumerating uptimes, and/or applying security patches)
- Script arbitrary workflows over SSH
On the other hand, Rex provides the following key features:
- Puts you in charge: Rex acknowledges that there is more than one way to manage it. It trusts you to be in the best position to decide what to automate and how, allowing you to build the automation tool your situation requires.
- Easy to get on board: automate what you are doing today, and add more tomorrow. Rex is instantly usable, making it ideal and friendly for incremental automation.
- It's just Perl: Perl is a battle-tested, mature language. Whenever you reach the limitations of the built-in Rex features, a powerful programming language and module ecosystem is directly available at your fingertips to seamlessly extend it even in other languages. So after all, it's not just Perl.
Capistrano and Rex are both open source tools. It seems that Capistrano with 11.5K GitHub stars and 1.73K forks on GitHub has more adoption than Rex with 620 GitHub stars and 204 GitHub forks.
Pros of Capistrano
- Automated deployment with several custom recipes121
- Simple63
- Ruby23
- Release-folders with symlinks11
- Multistage deployment9
- Cryptic syntax2
- Integrated rollback2
- Supports aws1
Pros of Rex
- Much simple to use or start with, if you know perl2










