[circus]
endpoint = tcp://127.0.0.1:$(circus.env.ENDPOINT_PORT)

[socket:bad]
path = /var/run/$(circus.env.BAD_PATH)

[plugin:breaking]
use = bad.has.been.$(circus.env.WHAT)

[env]
ENDPOINT_PORT = 1234
BAD_PATH = broken.sock
WHAT = broken