envoyproxy/envoy

Envoy as management target via SkyWalking CDS

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#15,023 opened on Feb 11, 2021

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area/tracingenhancementhelp wanted

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Description

Apache Skywalking introduced Configuration Discovery Service(CDS) feature.

https://github.com/apache/skywalking/issues/6114

It works like Envoy xDS but Skywalking as control plane of Skywalking agent. Today, we can use Envoy as Skywalking agent, then this functionality should be applied to Envoy also. It works not like xDS but establishing unary gRPC periodically, like a healthcheck agent. Currently it is WIP in Skywalking C++ SDK, but I will introduce this feature without using SDK's gRPC native client but using Envoy gRPC because of gRPC abstraction shouldn't be ignored. https://github.com/SkyAPM/cpp2sky/pull/61

Contributor guide

Research direction
Study the SkyWalking CDS specification (issue #6114) and the Envoy gRPC client abstraction to implement a unary gRPC polling mechanism for configuration discovery.
Tech stack
cppgrpc
Domain
backend
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.
Mostly clear
Prerequisites
GitgRPCEnvoy
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50