envoyproxy/envoy

Add logging for DNS Filter

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#15,862 opened on Apr 7, 2021

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area/dnsdesign proposalenhancementhelp wanted

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Description

Title: Add access logging for DNS Filter

Description: We'd like Envoy to act as DNS for our services. DNS logs are a rich source of telemetry data for security detection and visibility on outbound requests. It would be great if we had the option to log both local and external resolutions. The DNS filter currently provides debug application logging for external resolutions, but we'd want to extend the filter to provide access logging for both local and external resolves.

Contributor guide

Research direction
Study the existing DNS filter code and logging patterns in Envoy, then extend the filter to emit access logs for both local and external resolutions.
Tech stack
cpp
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
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++Envoy
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60