Graphite serializer should support output templates

[jipperinbham]

Some inputs throw a lot of tags into the metric and the graphite serializer currently defaults to iterating over every single tag in the metric to build the name. It would be nice for it to also build the name from a list of tags.

[sparrc]

I'm going to change the name of the issue because this is something I've thought about before too, we should be able to support graphite output templates in a similar way that we already support graphite input templates.

[jipperinbham]

👍 that would be quite nice, looking over the input template it's quite a bit more complicated than the current graphite serializer

[sparrc]

yes, but I think the input needs to be quite a bit more complicated because it needs to deal with generic wildcards and mapping them into influx tag key/values. I think for output we just need to deal with explicit tag key names, and then maybe a single tag wildcard to tell it to write all the rest of the tags.

[jipperinbham]

just checked out #1001, nice work!