envoyproxy/envoy

Expose filter chain name to metrics

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#15,185 opened on Feb 25, 2021

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Description

Now that we have support for filter chain names, it'd be really useful to expose them in the metrics. Ideally, all the metrics emitted by filters inside a filter chain should have that filter chain's name added as a label.

Contributor guide

Research direction
Investigate how filter chain names are stored and retrieved in the codebase, then trace how metrics are emitted from filters. Find the appropriate location to add the filter chain name as a label to all filter metrics.
Tech stack
cpp
Domain
backendobservability
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
C++Git
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
55