Please implement filtering based on http header

[bzed]

Hi,

it would be awesome if graphite-clickhouse could filter series based on an http header (or something similar). What I'm thinking about is basically:

• pass X-GRAPHITE-CUSTOMER: 12345 in the request
• have a config file which allows prefixes for the customer:

[12345]
blacklisted-prefixes = ["*"]
whitelisted-prefixes = ["foo", "bar", "carbon"]

With such a configuration graphite-clickhouse should just behave like always, but limit all its output to the metrics matching the whitelisted (or not blacklisted) prefixes.

Thanks for considering,

Bernd