HTTP Tunneling

Disable the dashboard by commenting or removing these lines in frps.ini

# frp dashboard
#dashboard_addr = ::
#dashboard_port = 8080
#dashboard_user = {{ .Envs.FRP_DASH_USER }}
#dashboard_pwd = {{ .Envs.FRP_DASH_PWD }}
#enable_prometheus = true

TLS termination at fly.io

If you want fly.io to handle TLS and certificates for you.

1. Add these lines in frps.ini

vhost_http_port  = 8080

TLS passthrough

If you want your server to handle TLS and certificates so that the connection is end-to-end encrypted and you manage the certificates at your server. Take note that you will lose fly.io's HTTP level load balancing and instead use TCP level load balancing.

1. Comment or remove these lines in fly.toml

# frp HTTP server (for dashboard or HTTP tunnel)
#[[services]]
#  internal_port = 8080
#  protocol = "tcp"
#
#  [services.concurrency]
#    hard_limit = 25
#    soft_limit = 20
#    type = "connections"
#
#  [[services.ports]]
#    handlers = ["http"]
#    port = 80
#
#  [[services.ports]]
#    handlers = ["tls", "http"]
#    port = 443
#
#  [[services.tcp_checks]]
#    grace_period = "1s"
#    interval = "1m"
#    restart_limit = 0
#    timeout = "2s"

2. Add these lines in fly.toml

# frp HTTP tunnel
[[services]]
  internal_port = 8080
  protocol = "tcp"

  [services.concurrency]
    hard_limit = 25
    soft_limit = 20
    type = "connections"

  [[services.ports]]
    port = 80

# frp HTTPS tunnel
[[services]]
  internal_port = 8081
  protocol = "tcp"

  [services.concurrency]
    hard_limit = 25
    soft_limit = 20
    type = "connections"

  [[services.ports]]
    port = 443

3. Add these lines in frps.ini

vhost_http_port  = 8080
vhost_https_port = 8081