From e7fbee8c82740bd3e21c9abdcfe5a1e922244c09 Mon Sep 17 00:00:00 2001 From: Francis Lavoie Date: Wed, 4 May 2022 14:40:39 -0400 Subject: reverseproxy: Permit resolver addresses to not specify a port (#4760) Context: https://caddy.community/t/caddy-2-5-dynamic-upstreams-and-consul-srv-dns/15839 I realized it probably makes sense to allow `:53` to be omitted, since it's the default port for DNS. --- modules/caddyhttp/reverseproxy/upstreams.go | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'modules/caddyhttp') diff --git a/modules/caddyhttp/reverseproxy/upstreams.go b/modules/caddyhttp/reverseproxy/upstreams.go index 3b58b8d..f788dad 100644 --- a/modules/caddyhttp/reverseproxy/upstreams.go +++ b/modules/caddyhttp/reverseproxy/upstreams.go @@ -7,6 +7,7 @@ import ( "net" "net/http" "strconv" + "strings" "sync" "time" @@ -372,7 +373,14 @@ func (u *UpstreamResolver) ParseAddresses() error { for _, v := range u.Addresses { addr, err := caddy.ParseNetworkAddress(v) if err != nil { - return err + // If a port wasn't specified for the resolver, + // try defaulting to 53 and parse again + if strings.Contains(err.Error(), "missing port in address") { + addr, err = caddy.ParseNetworkAddress(v + ":53") + } + if err != nil { + return err + } } if addr.PortRangeSize() != 1 { return fmt.Errorf("resolver address must have exactly one address; cannot call %v", addr) -- cgit v1.2.3