Destination IP attribute appears to be being sent as string not bytes for TCP traffic #3980
Description
From manual testing:
2018-03-05T22:43:27.004209Z debug Creating bag with attributes: &CompressedAttributes{Words:[connection.mtls netcat-srv.dashboard-test-bb2e038d35294053a3a836.svc.cluster.local 4ec61021-71b6-4dbe-9bd2-b4823d624206-21 10.40.0.65 kubernetes://netcat-srv-6c7df54b57-7svgp.dashboard-test-bb2e038d35294053a3a836],Strings:map[int32]int32{125: -3,131: 124,150: -4,152: -2,154: -5,},Int64S:map[int32]int64{1: 33382,},Doubles:map[int32]float64{},Bools:map[int32]bool{-1: false,},Timestamps:map[int32]time.Time{133: 2018-03-05 22:43:27.002173326 +0000 UTC,},Durations:map[int32]time.Duration{},Bytes:map[int32][]byte{0: [10 40 2 83],},StringMaps:map[int32]StringMap{},}
2018-03-05T22:43:27.004293Z debug Dispatching Preprocess Check
panic: interface conversion: interface {} is string, not net.IP
goroutine 45478 [running]:
istio.io/istio/mixer/template.(*builder_adapter_template_kubernetes_Template).build(0xc420cd7140, 0x186f800, 0xc4204ca770, 0xc420b2d501, 0x0, 0x0, 0x200, 0x1532e60)
/home/bootstrap/go/src/istio.io/istio/mixer/template/template.gen.go:3551 +0x556
This is for a request from a Pod with IP 10.40.2.83 to a Pod with IP 10.40.0.65.
As you can see in the logs above, the destination IP address appears in the Words for the attribute bag. This leads to it being treated as a string.
Manually, doing the mapping seems to imply "destination.ip" is being set to "10.40.0.65" (based on 154:-5).