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add forward/upstream metadata (#4521)

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Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
This commit is contained in:
Chris O'Haver
2021-03-16 08:34:22 -04:00
committed by GitHub
parent a2b34a233d
commit 32cc745dc2
1 changed files with 5 additions and 0 deletions
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5
plugin/forward/forward.go
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@@ -14,6 +14,7 @@ import (
"github.com/coredns/coredns/plugin"
"github.com/coredns/coredns/plugin/debug"
"github.com/coredns/coredns/plugin/dnstap"
"github.com/coredns/coredns/plugin/metadata"
clog "github.com/coredns/coredns/plugin/pkg/log"
"github.com/coredns/coredns/request"
@@ -122,6 +123,10 @@ func (f *Forward) ServeDNS(ctx context.Context, w dns.ResponseWriter, r *dns.Msg
ctx = ot.ContextWithSpan(ctx, child)
}
metadata.SetValueFunc(ctx, "forward/upstream", func() string {
return proxy.addr
})
var (
ret *dns.Msg
err error