Serve acme http challenge: address already in use

[FZambia]

Prerequisites

Put an x in the boxes that apply

• This is a question
• This is a bug report
• This is a feature request
• Can you reliably reproduce the problem? (for bug report only)
• Reproduces on latest Centrifugo version (for bug report only)
• Did you check the FAQ? https://centrifugal.github.io/centrifugo/faq/

Description

When Centrifugo uses custom ports then ACME HTTP challenge tries to start several times and results in fatal error:

serve acme http challenge: bind: address already in use

Steps to reproduce (for bug report only)

Run Centrifugo with config like:

  ...
  "port": 8090,
  "internal_port": 9090,

  "tls_autocert": true,
  "tls_autocert_host_whitelist": "www.myhost.com",
  "tls_autocert_cache_dir": "/tmp/certs",
  "tls_autocert_email": "[email protected]",
  "tls_autocert_http": true,
  "tls_autocert_http_addr": "0.0.0.0:80"

Versions (for bug report only)

• Centrifugo version is 2.2.1
• Operating system is - all OS