Fabio

What it does

Automatic routing

When a Consul service registers path tags, Fabio updates its routing table as soon as Consul data changes, without restarting or reloading.checked 11 Oct 2026

Deployment

The project README lists installation from source, prebuilt binaries, Docker, and Homebrew.checked 11 Oct 2026

Integrations

The features page lists Consul, Vault, Docker, Graphite, StatsD/DataDog, Circonus, Amazon ELB, and Amazon NLB support.checked 11 Oct 2026

Live changes

Fabio can hot reload its routing table without downtime and wait for requests to finish before shutting down.checked 11 Oct 2026

Maintainer

The project site says primary maintenance has been the responsibility of ENA and the user community since January 2020.checked 11 Oct 2026

Maintenance

The project site says primary maintenance has been the responsibility of Education Networks of America and the user community since January 2020.checked 11 Oct 2026

Metrics

The feature page lists support for Graphite, StatsD/DataDog, and Circonus metrics.checked 11 Oct 2026

Notable limit

The deployment page says Fabio is currently not used as a frontend-to-backend or backend-to-backend router because Consul service discovery already solves that problem.checked 11 Oct 2026

Operations

Fabio provides a web UI for examining the current routing table and supports metrics integrations.checked 11 Oct 2026

Primary use

Fabio is intended to distribute incoming HTTP(S) and TCP requests from the internet to frontend services.checked 11 Oct 2026

Primary use case

The main use case is distributing incoming HTTP(S) and TCP requests from the internet to frontend services.checked 11 Oct 2026

Product

Fabio is an HTTP and TCP reverse proxy that configures its routing from Consul data.checked 11 Oct 2026

Proxy features

Fabio supports transparent gRPC proxying, HTTP compression, header injection, redirects, path prepending and stripping, WebSockets, and server-sent events.checked 11 Oct 2026

Purpose

Fabio is an HTTP and TCP reverse proxy that configures itself with data from Consul.checked 11 Oct 2026

Routing features

Features include route specific access control, customizable access logs, authorization mechanisms, and HTTP redirects.checked 11 Oct 2026

Security

The README says release hashes are signed with a PGP key and describes TLS certificate verification behavior for upstream HTTPS connections.checked 11 Oct 2026

Security detail

The README says binary release hashes are signed with a PGP key and notes that HTTPS upstream certificates without matching SAN extensions are not validated by newer builds.checked 11 Oct 2026

Service mesh limits

The documentation says Fabio is currently not used to route traffic among frontend and backend services because Consul service discovery already handles that use case.checked 11 Oct 2026

Service tags

Registered services use tags such as `urlprefix-/user` to announce the paths they accept.checked 11 Oct 2026

TCP and protocols

Fabio supports raw TCP proxying, TCP-SNI forwarding without re-encryption, and transparent gRPC proxying.checked 11 Oct 2026

TLS

Fabio supports dynamic certificate stores using files, HTTP servers, Consul, or Vault, and can forward HTTPS upstream requests.checked 11 Oct 2026

TLS and certificates

Fabio supports HTTPS upstreams, TCP-SNI proxying, TLS termination, and dynamic certificate stores including filesystem, HTTP server, Consul, and Vault.checked 11 Oct 2026

Traffic handling

Traffic shaping can forward a percentage of traffic upstream without knowing the number of instances.checked 11 Oct 2026

Traffic management

Traffic shaping can send a percentage of traffic upstream without knowing the number of instances.checked 11 Oct 2026