While following the example in the README.md file, after all three consul containers are up and running, the logs are full of the following messages and are repeated indefinitely:

consul_3 | 2018-04-18T22:48:57.476823000Z 2018/04/18 22:48:57 /usr/local/bin/consul-manage: line 19: [: ==: unary operator expected
consul_3 | 2018-04-18T22:48:57.483049000Z 2018/04/18 22:48:57 Service registration failed: Put http://127.0.0.1:8500/v1/agent/service/register: dial tcp 127.0.0.1:8500: connect: connection refused
consul_1 | 2018-04-18T22:49:01.817519000Z 2018/04/18 22:49:01 /usr/local/bin/consul-manage: line 19: [: ==: unary operator expected
consul_1 | 2018-04-18T22:49:01.822914000Z 2018/04/18 22:49:01 Service registration failed: Put http://127.0.0.1:8500/v1/agent/service/register: dial tcp 127.0.0.1:8500: getsockopt: connection refused
consul_2 | 2018-04-18T22:49:02.884224000Z 2018/04/18 22:49:02 /usr/local/bin/consul-manage: line 19: [: ==: unary operator expected
consul_2 | 2018-04-18T22:49:02.886316000Z 2018/04/18 22:49:02 Service registration failed: Put http://127.0.0.1:8500/v1/agent/service/register: dial tcp 127.0.0.1:8500: connect: connection refused

Steps to reproduce

1. git clone https://github.com/autopilotpattern/consul.git
2. cd consul/example/triton
3. eval "$(triton env)"
4. ./setup.sh
5. docker-compose up -d
6. docker-compose scale consul=3
7. docker-compose logs -ft

Let me know if I can provide any additional information.