metrics: remove authority label on inbound http metrics #3547
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This change removes the
authoritylabel on inbound HTTP requests.The label is derived from the Host headers on inbound HTTP requests. This means
that the presence of this label can be exploited by a malicious client in order to produce
unbounded increase in the cardinality of the metrics reported in the proxy by sending
a large amount of HTTP requests with random
Hostheaders.Signed-off-by: Zahari Dichev [email protected]