News

2019-06-09
Post-migration updates & clean-up

Over the course of the past weeks many clean-ups have been done, reaping the benefits provided by our new Statocles-based site:

2019-05-19
New site engine for rexify.org

After months of work on a new site backend, we reached the MVP today for our site to be switched over to a new engine: from now on, our site will be maintained using the static site generator Statocles.

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Rex is a pure open source project, you can find community support in the following places:

• IRC: #rex on irc.freenode.net
• Groups: Rex Users
• Serverfault: Tag with rex
• Issues: on GitHub
• Feature: you miss a feature?

Professional support is also available.

» Home » Docs » Release notes » Release notes for 0.4

Release notes for 0.4

Rex

• Hardware and Information gathering

  Now you can get information of the servers hardware and configuration.

  Copy to clipboard

   use Rex::Hardware;
   use Data::Dumper;
  
  
   desc "Get Hardware Information";
   task "hw-info", "testsystem", sub {
       my %hw = Rex::Hardware->get( qw/ Host Kernel Memory Network Swap / );
  
  
   print Dumper(\%hw);
  
  
   };
  

  Will produce the following example output:

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   $VAR1 = {
            'Network' => {
                           'networkdevices' => [
                                                 'eth0',
                                                 'wlan0'
                                               ],
                           'networkconfiguration' => {
                                                       'wlan0' => {
                                                                    'broadcast' => '192.168.2.255',
                                                                    'ip' => '192.168.2.229',
                                                                    'netmask' => '255.255.255.0',
                                                                    'mac' => '00:21:5C:5C:1E:5F'
                                                                  },
                                                       'eth0' => {
                                                                   'broadcast' => undef,
                                                                   'ip' => undef,
                                                                   'netmask' => undef,
                                                                   'mac' => '00:1C:25:94:B0:85'
                                                                 }
                                                     }
                         },
            'Memory' => {
                          'shared' => '0',
                          'buffers' => '36',
                          'free' => '3168',
                          'used' => '792',
                          'total' => '3961',
                          'cached' => '407'
                        },
            'Kernel' => {
                          'kernelversion' => '#1 SMP PREEMPT 2011-02-21 10:34:10 +0100',
                          'architecture' => 'x86_64',
                          'kernel' => 'Linux',
                          'kernelrelease' => '2.6.37.1-1.2-desktop'
                        },
            'Swap' => {
                        'free' => '3812',
                        'used' => '0',
                        'total' => '3812'
                      },
            'Host' => {
                        'domain' => 'site',
                        'manufacturer' => 'LENOVO',
                        'hostname' => 'linux-ymf0.site',
                        'operatingsystemrelease' => '11.4',
                        'operatingsystem' => 'SuSE'
                      }
          };
  

• Install Packages

  Support for apt, yum and zypper (OpenSuSE)

  Example:

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   # include for ,,install'' Function
   use Rex::Commands::Pkg;
  
  
   # include for ,,operating_system_is'' Function
   use Rex::Commands::Gather;
  
  
   user "root";
  
  
   private_key "/Users/jan/.ssh/id_rsa";
   public_key  "/Users/jan/.ssh/is_rsa.pub";
  
  
   # group servers
   group "test" => "debian01", "centos01", "suse01";
  
  
   # run tasks in parallel
   parallelism 2;
  
  
   desc "Prepare System";
   task "prepare", group => "test", sub {
  
  
  # check if operating system is CentOS, because on CentOS vim is 
  # available through the package "vim-enhanced".
  if (operating_system_is("CentOS")) {
      install package => "vim-enhanced";
  }
  else {
      install package => "vim";
  }
  
  
  install package => "mc";
  
  
   };
  

  This task will install vim and mc on all the 3 systems.