hyperglass-agent: TLS files requires even if ssl is disabled

[bastelfreak]

Bug Description

Hi, I assumed that if I disable TLS, no TLS certificate / private key are required. But that's not the case.

Expected behavior

given this config:

---
debug: true
listen_address: 127.0.0.1
mode: bird
secret: NCzYFKOdzSrCEJnV8NWH
ssl:
  enable: false

I assume hyperglass would start without the files, but it fails

Steps to Reproduce

start with the config from above

Local Configurations

Logs

output:

$ hyperglass-agent start
❌ Failed to start web server: 2 validation errors for Ssl
cert
  /opt/hyperglass/hyperglass-agent/hyperglass-agent/agent_cert.pem does not exist. (type=value_error)
key
  /opt/hyperglass/hyperglass-agent/hyperglass-agent/agent_key.pem does not exist. (type=value_error)

Simply creating empty files is a workaround that works:

✅ Starting hyperglass agent web server on http://127.0.0.1:8080 🚀 
 

INFO:     Started server process [8957]
INFO:     Waiting for application startup.
INFO:     Application startup complete.
INFO:     Uvicorn running on http://127.0.0.1:8080 (Press CTRL+C to quit)

Possible Solution

only enforce the presence of the files if TLS is enabled

Environment

Server

Latest hyperglass-agent from pypi on CentOS 7 / Python 3.6

[thatmattlove]

Closing, see #143