envoyproxy/envoy

Is it possible to fetch the status of health

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#31,528 opened on Dec 27, 2023

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enhancementhelp wanted

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Description

I've known that Envoy provided us the machanism of health checking. So Envoy itself knows the status of health of a cluster or an endpoint.

I want to know if a client could fetch the status of health of a cluster or an endpoint by sending some request to Envoy.

client ---> Envoy ---> cluster(endpoints)

I need this because in my case, I have a stateful server, which generate some IDs according to the status of health of the endpoints of a cluster. For example,

client(stateful server) ---> Envoy ---> cluster(endpoint1, endpoint2, endpoint3)

The client would generate different IDs according to the different status of health of the three endpoints.

I want to know if Envoy could help me on this issue.

Contributor guide

Research direction
Investigate Envoy's health check API and admin endpoint to determine if a client can query health status. Look into existing features like health check filters or endpoints.
Tech stack
None
Domain
api
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.
1-3 hours
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
HTTPEnvoy
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
80