deployment changes

added ports to host_provider
added http deployment of demo

src/dashboard/Dockerfile

 FROM nginx:latest
+EXPOSE 80
 EXPOSE 443
 
+ENV http_proxy http://proxy.uni-klu.ac.at:3128/
+ENV https_proxy http://proxy.uni-klu.ac.at:3128/
+
 COPY ./src/dashboard/deployment/nginx.conf /etc/nginx/conf.d/default.conf
 COPY ./src/dashboard/build/web/ /usr/share/nginx/html/
\ No newline at end of file

src/dashboard/lib/main.dart

 import 'package:dashboard/exceptions/login_exception.dart';
 import 'package:dashboard/loading.dart';
 import 'package:dashboard/ui/graphs/community_meta/cluster_view_page.dart';
-import 'package:dashboard/ui/graphs/community_meta/index.dart';
 import 'package:dashboard/ui/sign_in/loginpage.dart';
 import 'package:dashboard/util/loginhelper.dart';
 import 'package:dashboard/util/user.dart';
 import 'package:enhanced_future_builder/enhanced_future_builder.dart';
 import 'package:flutter/material.dart';
+import 'package:http/http.dart' as http;
 
 void main() {
   runApp(ArticonfDashboardDemo());
@@ -43,3 +43,49 @@ class _ArticonfDashboardDemoState extends State<ArticonfDashboardDemo> {
     );
   }
 }
+
+class DemoWidget extends StatefulWidget {
+  @override
+  _DemoWidgetState createState() => _DemoWidgetState();
+}
+
+class _DemoWidgetState extends State<DemoWidget> {
+  String _url = "http://rest-gateway/api/users";
+  String _response;
+
+  void _call() async {
+    try {
+      http.Response response = await http.get(_url);
+      setState(() {
+        _response = "${response.statusCode} - ${response.body}";
+      });
+    } catch (e, str) {
+      setState(() {
+        _response = "$e,\n\n $str";
+      });
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      home: Scaffold(
+        body: Center(
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              TextFormField(
+                initialValue: _url,
+                onChanged: (value) => _url = value,
+              ),
+              SizedBox(height: 8),
+              ElevatedButton(onPressed: _call, child: Text("Send Request")),
+              SizedBox(height: 8),
+              if (_url != null) Text(_response),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}

src/dashboard/lib/querying/clustergetter.dart

@@ -12,7 +12,9 @@ class ClusterGetter {
 
   Future<List<Community>> getNodesfromLayer(String layerName) async {
     String url =
-        "${HostProvider.articonfHost}/api/use-cases/reddit/tables/reddit/layers/$layerName/nodes";
+        "${HostProvider.articonfHost(30103)}/api/use-cases/reddit/tables/reddit/layers/$layerName/nodes";
+
+    Logger().i("calling $url");
 
     BackendUser user = await LoginHelper().loggedInUser;
     String token = user.token;
@@ -70,7 +72,9 @@ class ClusterGetter {
 
   Future<List<Cluster>> getClustersFromLayer(String layerName) async {
     String url =
-        "${HostProvider.articonfHost}/api/use-cases/reddit/tables/reddit/layers/$layerName/clusters";
+        "${HostProvider.articonfHost(30103)}/api/use-cases/reddit/tables/reddit/layers/$layerName/clusters";
+
+    Logger().i("calling $url");
 
     BackendUser user = await LoginHelper().loggedInUser;
     String token = user.token;

src/dashboard/lib/querying/host_provider.dart

@@ -2,13 +2,13 @@ import 'package:flutter/foundation.dart';
 
 class HostProvider {
   static String _hostArticonfDebug = "https://articonf1.itec.aau.at";
-  static String _hostArticonfRelease = "https://articonf1";
+  static String _hostArticonfRelease = "https://articonf1.itec.aau.at";
 
-  static String _hostManuelDebug = "http://test.nope-api.systems:81";
-  static String _hostManuelRelease = "http://manuel";
+  static String _hostManuelDebug = "https://live.nope-api.systems:81";
+  static String _hostManuelRelease = "https://live.nope-api.systems:81";
 
   static String articonfHost(int port) {
-    return kReleaseMode ? _hostArticonfRelease : "$_hostArticonfDebug:$port";
+    return kReleaseMode ? "$_hostArticonfRelease:$port" : "$_hostArticonfDebug:$port";
   }
 
   static String get manuelHost {