Built-in providers

Eleven providers compile into the binary (zero install). They split by injection mechanism: process control (docker), a proxy in the request path (toxiproxy), the DNS resolver (net), plus eight primitives (http, tcp, grpc, sql, redis, prom, load, exec). Two more composed providers ship as examples on top of Pumba.

Named instances #

The configured name is the namespace. Configure one native type twice with source: to address two deployments:

providers:
  apiA:
    source: http
    config:
      baseUrl: http://a:8080
  apiB:
    source: http
    config:
      baseUrl: http://b:8080

…then apiA.get, apiB.get. A composed instance (use:) takes no config: of its own: its body’s leaf verbs resolve against the native instances configured beside it, so the native instance’s config decides the target.