http:
  routers:
    voice:
      entryPoints:
        - "websecure"
      rule: "Host(`voice.semyeongsoft.com`)"
      tls:
        certResolver: smsoft-dns-challenge
        domains:
          - main: "semyeongsoft.com"
            sans:
              - "*.semyeongsoft.com"
      service: "voice"
  services:
    voice:
      loadbalancer:
        servers:
          - url: "http://10.10.20.20:9801"