From

• yaml/json setting: from
• Type: URL (must contain a scheme and hostname, must not contain a path)
• Schemes: https, tcp+https
• Required
• Example: https://verify.corp.example.com, tcp+https://ssh.corp.example.com:22

From is the externally accessible URL for the proxied request.

Specifying tcp+https for the scheme enables TCP proxying support for the route. You may map more than one port through the same hostname by specifying a different :port in the URL.

danger

Only secure schemes (https and tcp+https) are supported.