(R)?ex Deployment & Configuration Management



(R)?ex 0.45.0 released. This release comes with OpenStack cloud support and lot of enhancements for common resources/functions. See the release notes including examples for the new features.
Talk from Ferenc Erki at Free Software Conference of Szeged uploaded to slideshare
(R)?ex 0.44.1 released. This release enhance Rex with cool new features and fixes a lot of bugs. See the release notes on Github.
The talk of Kieler Linux Tage is uploaded to slideshare and on youtube (language: german).

We are proud to announce that Rex was voted under the Best Open Source solutions 2013 by initiative mittelstand. And we want to thank inovex for the support to make this happen.


2014-05-08 - 2014-05-10

Visit us at the LinuxTag in Berlin.

LinuxTag is Europe's leading exhibition and conference for Linux, Free Software and Open Source.

Need Help?

Rex is a pure Open Source project. So you can find community support in the following places.

(R)?ex Book

The Rex Book will cover all topics from simple automation scripts to multi environment and advanced deployments. This book is currently work in progress. If you want to contribute just fork the website on github.


  1. Rex Infrastructure
    1. SSH as an agent
    2. Version Control with Git
    3. Using commit hooks
  2. Monitoring and Reporting
    1. Generating reports
  3. The Rex DSL
    1. Writing Rexfiles
    2. Authentication
    3. Grouping servers
    4. Using environments
    5. Using Modules
    6. Using templates
    7. Iterating over Arrays
    8. Iterating over Hashs
    9. Conditional Statements
    10. Regular Expressions
    11. Using case Statement
  4. Writing Modules
    1. Use Arrays for Resources
    2. Inheritance
    3. Passing parameters to module tasks
    4. Writing reusable, cross-platform modules
    5. Getting information of the environment
    6. Using external data sources
  5. Working with Files and Packages
    1. Working with files
    2. Using augeas to modify files
    3. Using templates
    4. Arrays and hashes in templates
    5. Installing packages
    6. Using 3rd party repositories
    7. Create your own apt repository
    8. Create your own yum repository
    9. Creating deb packages
    10. Creating rpm packages
  6. Working with the filesystem
    1. Managing directories
    2. Managing files
    3. Running a command when a file is updated
    4. Using multiple file sources
    5. Distributing directory trees
    6. Cleaning up old files
    7. Using /etc/hosts file
    8. Managing permissions
    9. Mounting filesystems
  7. Working with users and groups
    1. Managing users
    2. Managing ssh authorized_keys
    3. Managing users profile
    4. Managing groups
    5. Managing cronjobs
  8. Applications
    1. Working with Apache
    2. Working with nginx
    3. Working with MySQL
  9. Managing Datacenters and the Cloud
    1. Deploying Nagios
    2. Building High Availbility services with heartbeat
    3. Building High Availbility storage with DRBD
    4. Managing NFS servers
    5. Using IPVS / ldirector to loadbalance services
    6. Managing firewalls with iptables
    7. Managing EC2 instances
    8. Managing virtual machines with Rex::Box
  10. The Rex Ecosystem
    1. Community modules
    2. Rex.IO
      1. Baremetal Deployments
      2. Service Management
      3. Incident Management
      4. CMDB
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