Use external IP address for open task

auth-service/build.gradle

@@ -1,7 +1,7 @@
 ext {
 	httpPort = 8082
 	httpsPort = 8482
-	appUrl = "http://localhost:${httpPort}/openapi/ui"
+	appUrl = "http://${hostname}:${httpPort}/openapi/ui"
 }
 
 liberty {

build.gradle

@@ -12,6 +12,22 @@ task clean(type: Delete) {
   delete 'build'
 }
 
+ext.hostname = 'localhost'
+// Find the public IP address for this machine (if one exists)
+NetworkInterface.getNetworkInterfaces()
+.findAll { it.isUp() && !it.isLoopback() && !it.isVirtual() }
+.each {
+  it.getInetAddresses()
+  .findAll { !it.isLoopbackAddress() && it instanceof Inet4Address }
+  .each {
+    if (hostname.equals('localhost')) {
+      def hn = it.toString();
+      hostname = hn.startsWith("/") ? hn.substring(1, hn.length()) : hn;
+      // ${it} is in the format /<IP>, so only use http:/ instead of http://
+    }
+  }
+}
+
 subprojects {
     apply plugin: 'liberty'
     apply plugin: 'war'

frontend/build.gradle

@@ -19,7 +19,7 @@ ext {
 	httpPort = 12000
 	httpsPort = 12005
 	applicationName = "${war.archiveName}"
-	appUrl = "http://localhost:${httpPort}/"
+	appUrl = "http://${hostname}:${httpPort}/"
 }
 
 war {

game-service/build.gradle

@@ -6,7 +6,7 @@ dependencies {
 ext {
 	httpPort = 8080
 	httpsPort = 8443
-	appUrl = "http://localhost:${httpPort}/openapi/ui"
+	appUrl = "http://${hostname}:${httpPort}/openapi/ui"
 }
 
 liberty {

player-service/build.gradle

@@ -1,7 +1,7 @@
 ext {
 	httpPort = 8081
 	httpsPort = 8444
-	appUrl = "http://localhost:${httpPort}/openapi/ui"
+	appUrl = "http://${hostname}:${httpPort}/openapi/ui"
 }
 
 liberty {