[TEST] packaging: add debug logging (elastic/x-pack-elasticsearch#3892)

* [TEST] packaging: add debug logging

Some tests have recurring but intermittent failure on opensuse 42 (see
issues mentioned below). Add debug logging for the places where they
occur. Fail fast when checking to see if es-with-xpack has come up.

For elastic/x-pack-elasticsearch#3817, elastic/x-pack-elasticsearch#3827, and elastic/x-pack-elasticsearch#3862

Original commit: elastic/x-pack-elasticsearch@d69e988a44

qa/vagrant/src/test/resources/packaging/tests/bootstrap_password.bash

@@ -95,6 +95,7 @@ SETUP_OK
     [ "$status" -eq 0 ] || {
         echo "Expected x-pack setup-passwords tool exit code to be zero but got [$status]"
         cat /tmp/setup-passwords-output-with-bootstrap
+        debug_collect_logs
         false
     }
 

qa/vagrant/src/test/resources/packaging/tests/certgen.bash

@@ -261,6 +261,7 @@ MASTER_SETTINGS
     [ "$status" -eq 0 ] || {
 	    echo "Failed to connect to master node using HTTPS:"
 	    echo "$output"
+	    debug_collect_logs
 	    false
     }
     echo "$output" | grep "node-master"
@@ -359,6 +360,7 @@ DATA_SETTINGS
         -XPOST "https://127.0.0.1:9200/books/book/0?refresh" \
         -d '{"title": "Elasticsearch The Definitive Guide"}')
 
+    debug_collect_logs
     echo "$testIndex" | grep '"result":"created"'
 
     masterSettings=$(sudo curl -u "elastic:changeme" \

qa/vagrant/src/test/resources/packaging/utils/xpack.bash

@@ -96,12 +96,19 @@ assert_number_of_files() {
 wait_for_xpack() {
     local host=${1:-localhost}
     local port=${2:-9200}
-
-    local waitFor
+    local listening=1
     for i in {1..60}; do
-        waitFor=$(echo "GET / HTTP/1.0" > /dev/tcp/$host/$port; echo $?)
-        [ "$waitFor" -eq "0" ] && break || sleep 1;
+        if test_port "$host" "$port"; then
+	    listening=0
+            break
+        else
+            sleep 1
+        fi
     done
 
-    [ "$waitFor" -eq "0" ]
+    [ "$listening" -eq 0 ] || {
+        echo "Looks like elasticsearch with x-pack never started."
+        debug_collect_logs
+        false
+    }
 }