[jira] [Created] (MESOS-1997) Allow for flags that are used on master+slave (+tests)

["Till Toenshoff (JIRA)" <ji...@apache.org>]

Till Toenshoff created MESOS-1997:
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             Summary: Allow for flags that are used on master+slave (+tests)
                 Key: MESOS-1997
                 URL: https://issues.apache.org/jira/browse/MESOS-1997
             Project: Mesos
          Issue Type: Improvement
            Reporter: Till Toenshoff
            Priority: Minor


I am honestly unsure if I was overcomplicating  a one-off, simple issue but notes like the following make me think about solutions :
{noformat}
// This help message for --modules flag is the same for
// {master,slave,tests}/flags.hpp and should always be kept in
// sync.
{noformat}

So we are starting to introduce flags that are used/usable for multiple runnables (e.g. master+slave+tests). These flags are defined separately for all those runnables (master/flags.hpp, slave/flags.hpp and tests/flags.hpp). As changes for those flags will have to be kept in sync manually, I thought we might want to consider introducing flags that cover all runnables instead and let the above flags definitions derive from those.

On the other hand, those would introduce more complexity, given that we possibly have various combinatoric scenarios:
- master+tests
- slave+tests
- master+slave
- master+slave+tests

Thoughts?



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