Details
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Improvement
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Status: Open
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Major
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Resolution: Unresolved
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Description
At Yelp we're planning to integrate our secret store with our platform as a service which runs on Mesos.
I was hoping to write a module to "inject" environment variables on the master side but the necessary hook doesn't currently exist. Such a hook already exists on the slave side. However, for this integration that would require me to give all the agents access to the secret store and I'd much prefer to limit this to the master side.
There is already a hook for adding labels:
https://github.com/apache/mesos/blob/72752fc6deb8ebcbfbd5448dc599ef3774339d31/include/mesos/hook.hpp#L44-L48
So it seems it should be pretty easy to add one for setting environment variables too? I had a crack the other day but although I got my code to compile something was not working at runtime (note: I'm not a C++ dev). Is there any reason why we wouldn't want such a hook? If anyone can confirm that it's a sane thing to add then I'd be happy to spend some time trying to get it working (although I may need some help)!