Add more logging to outbound test (#1536)

test/cluster-tests/kubernetes/k8s-utils.sh

@@ -134,7 +134,7 @@ function test_windows_deployment() {
   while (( $count > 0 )); do
     log "  ... counting down $count"
     query=$(kubectl exec $winpodname -- powershell nslookup www.bing.com)
-    if [[ $(echo ${query} | grep "DNS request timed out" | wc -l) == 0 ]]; then
+    if [[ $(echo ${query} | grep "DNS request timed out" | wc -l) == 0 ]] && [[ $(echo ${query} | grep "UnKnown" | wc -l) == 0 ]]; then
       success="y"
       break
     fi
@@ -146,24 +146,32 @@ function test_windows_deployment() {
   success="n"
   while (( $count > 0 )); do
     log "  ... counting down $count"
+    # curl without getting status first and see the response. getting status sometimes has the problem to hang
+    # and it doesn't repro when running kubectl from the node
+    kubectl exec $winpodname -- powershell iwr -UseBasicParsing -TimeoutSec 60 www.bing.com
     statuscode=$(kubectl exec $winpodname -- powershell iwr -UseBasicParsing -TimeoutSec 60 www.bing.com | grep StatusCode)
-    if [[ $(echo ${statuscode} | grep 200 | awk '{print $3}' | tr -d '\r') -eq "200" ]]; then 
+    if [[ ${statuscode} != "" ]] && [[ $(echo ${statuscode} | grep 200 | awk '{print $3}' | tr -d '\r') -eq "200" ]]; then
+      log "got 200 status code"
+      log "${statuscode}"
       success="y"
       break 
     fi
+    log "curl failed, retrying..."
+    ipconfig=$(kubectl exec $winpodname -- powershell ipconfig /all)
+    log "$ipconfig"
     sleep 10; count=$((count-1))
   done
   if [[ "${success}" != "y" ]]; then
     nslookup=$(kubectl exec $winpodname -- powershell nslookup www.bing.com)
     log "$nslookup"
-    ipconfig=$(kubectl exec $winpodname -- powershell ipconfig /all)
-    log "$ipconfig"
     log "getting the last 50 events to check timeout failure"
     hdr=$(kubectl get events | head -n 1)
     log "$hdr"
     evt=$(kubectl get events | tail -n 50)
     log "$evt"
     log "K8S-Windows: failed to get outbound internet connection inside simpleweb container"
     exit 1
+  else
+    log "outbound connection succeeded!"
   fi
 }