Show exit code in Bootstrap Password packaging tests

Also cleans up some files before the test is executed,
and explicitly binds to 127.0.0.1/9200.

Original commit: elastic/x-pack-elasticsearch@778584ea78

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

@@ -44,39 +44,55 @@ else
 fi
 
 @test "[$GROUP] add bootstrap.password setting" {
+    if [[ -f /tmp/bootstrap.password ]]; then
+	    sudo rm -f /tmp/bootstrap.password
+    fi
+
     run sudo -E -u $ESPLUGIN_COMMAND_USER sh <<"NEW_PASS"
 cat /dev/urandom | tr -dc "[a-zA-Z0-9]" | fold -w 20 | head -n 1 > /tmp/bootstrap.password
 cat /tmp/bootstrap.password | $ESHOME/bin/elasticsearch-keystore add --stdin bootstrap.password
 NEW_PASS
     [ "$status" -eq 0 ] || {
-        echo "Expected elasticsearch-keystore tool exit code to be zero"
+        echo "Expected elasticsearch-keystore tool exit code to be zero but got [$status]"
         echo "$output"
         false
     }
+    assert_file_exist "/tmp/bootstrap.password"
 }
 
 @test "[$GROUP] test bootstrap.password is in setting list" {
+    run sudo -E -u $DATA_USER sh <<"NODE_SETTINGS"
+cat >> $ESCONFIG/elasticsearch.yml <<- EOF
+network.host: 127.0.0.1
+http.port: 9200
+EOF
+NODE_SETTINGS
+
     run_elasticsearch_service 0
-    wait_for_xpack
+    wait_for_xpack 127.0.0.1 9200
 
     sudo -E -u $ESPLUGIN_COMMAND_USER "$ESHOME/bin/elasticsearch-keystore" list | grep "bootstrap.password"
 
     password=$(cat /tmp/bootstrap.password)
-    curl -u "elastic:$password" -XGET localhost:9200 | grep "You Know, for Search"
+    curl -u "elastic:$password" -XGET 'http://127.0.0.1:9200' | grep "You Know, for Search"
 }
 
 @test "[$GROUP] test auto generated passwords with modified bootstrap.password" {
+    if [[ -f /tmp/setup-passwords-output-with-bootstrap ]]; then
+	    sudo rm -f /tmp/setup-passwords-output-with-bootstrap
+    fi
+
     run sudo -E -u $ESPLUGIN_COMMAND_USER sh <<"SETUP_OK"
 echo 'y' | $ESHOME/bin/x-pack/setup-passwords auto
 SETUP_OK
     echo "$output" > /tmp/setup-passwords-output-with-bootstrap
     [ "$status" -eq 0 ] || {
-        echo "Expected x-pack setup-passwords tool exit code to be zero"
+        echo "Expected x-pack setup-passwords tool exit code to be zero but got [$status]"
         cat /tmp/setup-passwords-output-with-bootstrap
         false
     }
 
-    curl -s -XGET localhost:9200 | grep "missing authentication token for REST"
+    curl -s -XGET 'http://127.0.0.1:9200' | grep "missing authentication token for REST"
 
     # Disable bash history expansion because passwords can contain "!"
     set +H
@@ -90,10 +106,10 @@ SETUP_OK
         }
 
         password=$(grep "PASSWORD $user = " /tmp/setup-passwords-output-with-bootstrap | sed "s/PASSWORD $user = //")
-        curl -u "$user:$password" -XGET localhost:9200 | grep "You Know, for Search"
+        curl -u "$user:$password" -XGET 'http://127.0.0.1:9200' | grep "You Know, for Search"
 
         basic=$(echo -n "$user:$password" | base64)
-        curl -H "Authorization: Basic $basic" -XGET localhost:9200 | grep "You Know, for Search"
+        curl -H "Authorization: Basic $basic" -XGET 'http://127.0.0.1:9200' | grep "You Know, for Search"
     done
     set -H