Consul Service Mesh Cheat Sheet

Intent-based networking, ACLs, and identity

Last Updated: November 21, 2025

Focus Areas

Focus
Define intentions rather than iptables rules
Pair service identities with TLS certificates

Commands & Queries

consul intention create web api
Allow web → api traffic
consul catalog services
List registered services
consul connect proxy -service web
Launch a proxy for debugging

Summary

Lock down service traffic with intentions and identity-based TLS.

💡 Pro Tip: Document service identities in Consul catalogs and sync ACL tokens.
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