reverseproxy: caddyfile: Don't add port if upstream has placeholder (#3819)

* check if the host is a placeholder * Update modules/caddyhttp/reverseproxy/caddyfile.go Co-authored-by: Matt Holt <mholt@users.noreply.github.com>

Jason McCallister committed Oct 29, 2020 at 15:51 UTC c9fdff9976da38c650a51cd3fb4f2667853ff627

1 file changed +3 -1

modules/caddyhttp/reverseproxy/caddyfile.go

+3 -1

@@ -155,7 +155,9 @@ func (h *Handler) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {

155 if err != nil {

156 host = upstreamAddr

157 }

158 - if port == "" {

158 + // we can assume a port if only a hostname is specified, but use of a

159 + // placeholder without a port likely means a port will be filled in

160 + if port == "" && !strings.Contains(host, "{") {

161 port = "80"

162 }

163 }