Mesos Modules Ruby

This repository is a collection of experimental mesos modules to call ruby scripts implementing hooks.

This project is not battle-tested, use it at your own risk.

Build Instructions

    $ export MESOS_BUILD_DIR=[ directory where Mesos was BUILT, e.g. ~/repos/mesos/build ]
    $ export PKG_CONFIG_PATH=[ probably the same directory or ${installdir}/lib/pkgconfig ]
    $ mkdir build
    $ cd build
    $ cmake ..
    $ make
    $ ./test_hook ../hook.rb

Scripting Documentation

RubyHook is currently expecting the following API from the attached Ruby script:

    def slaveRunTaskLabelDecorator taskinfo
        ...             # read and modify taskinfo fields or
        ...             # taskinfo sub-classes, esp. Labels
        return taskinfo # mandatory!
    end
    
    def slaveRemoveExecutorHook execinfo
        ...
        # no return value
    end

Both taskinfo and execinfo are hashes filled from equivalent C++ classes. For instance, you can get the name of a task with taskinfo["name"] and access the labels kv-pairs through taskinfo["labels"] as a string-string hash.