(R)?ex the friendly automation framework

News

2021-07-05
Rex-1.13.4

The Rex-1.13.4 release is now available on CPAN. It contains documentation updates, and a fix for inconsistent behavior between the content and source options of the file command.

2021-03-05
Rex-1.13.3

The Rex-1.13.3 release is now available on CPAN. It contains documentation updates, and a fix for debconf parsing. Behind the scenes, CI was migrated over to GitHub Actions as well.

2020-12-05
Rex-1.13.2

The Rex-1.13.2 release is now available on CPAN. It contains only documentation updates, mostly for the built-in template capabilities, but also fixes a few typos.

2020-11-05
Rex-1.13.1

Happy 10th birthday, Rex!

The Rex-1.13.1 release is now available on CPAN. It is focusing on CMDB bugfixes and documentation, while also fixing a missing feature flag. Upgrade is recommended for all users.

2020-10-05
Rex-1.13.0

The Rex-1.13.0 release is now available on CPAN. It adds on_no_change hooks for file management commands to trigger further actions when files are left unchanged. Upgrade is recommended for all users.

Events

2021-03-08
Learning automation using Rex

Ferenc Erki (FErki) will be the guest of Gábor Szabó on the next Code Maven live stream to learn about automation using Rex. Register for the free event via Code Maven or Meetup, and join the discussion!

2020-03-05
Unexpected use cases with Rex

Unexpected use cases with Rex at the 22nd German Perl/Raku Workshop 2020 in Erlangen by Ferenc Erki (FErki).

2019-11-09
Rex & Friends

Rex & Friends talk at the Barcelona Perl & Friends 2019 by Ferenc Erki (FErki).

» Home » Docs » Release notes » Release notes for 0.36

Release notes for 0.36

General

You can download OpenNebula module with the following command:

bash # rexify --use Rex::Cloud::OpenNebula

  use strict;
use warnings;

use Rex::Commands::Cloud;
use Rex::Cloud::OpenNebula;
use Data::Dumper;

user "root";

cloud_service "OpenNebula";
cloud_auth "oneadmin", "opennebula";
cloud_region "http://172.16.120.131:2633/RPC2";

task "list-os", sub {
    print Dumper get_cloud_operating_systems;
};

task "create", sub {
    my $params = shift;
    my $vm     = cloud_instance create => {
        image => "template-1",
        name  => $params->{name},
    };

    print Dumper($vm);
};

task "start", sub {
    my $params = shift;
    cloud_instance start => $params->{name};
};

task "stop", sub {
    my $params = shift;
    cloud_instance stop => $params->{name};
};

task "terminate", sub {
    my $params = shift;
    cloud_instance terminate => $params->{name};
};

task "list", sub {
    print Dumper cloud_instance_list;
};

With this function you can run a specific task on a given host and get the output as a return value.

task "prepare", "server5", sub {

    # do something
    my $free_mem = run_task "get_free_mem", on => "server3";
    if ( $free_mem < 100 ) {
        say "Less than 100 MB free mem on server3";

        # create a new server instance on server5 to unload server3
    }
};

task "get_free_mem", sub {
    return memory->{free};
};

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