Fix: Inclue "coscine/local/api/additional/url" for Host (coscine/issues#723)

README.md

@@ -7,6 +7,10 @@ This library contains the common elements of the Coscine api projects.
 Build this project by running either the build.ps1 or the build<span></span>.sh script.
 The project will be build and tested.
 
+## Necessary keys
+
+The key "coscine/local/api/additional/url" is necessary for describing the host url.
+
 ### Links 
 
 *  [Commit convention](docs/ESLintConvention.md)

src/ApiCommons/ApplicationInformation.cs

@@ -8,6 +8,7 @@ namespace Coscine.ApiCommons
     {
         public string AppName { get; set; } = AssemblyName();
         public string AppType { get; set; } = "apis";
+        public string ApiUrl { get; set; }
         public Version Version { get; set; } = ToSemanticVersion((System.Reflection.Assembly.GetEntryAssembly() != null) ? System.Reflection.Assembly.GetEntryAssembly().GetName().Version : System.Reflection.Assembly.GetExecutingAssembly().GetName().Version);
         public string DomainName { get; set; } = System.Net.NetworkInformation.IPGlobalProperties.GetIPGlobalProperties().DomainName;
         public string HostName { get; set; } = Dns.GetHostName();
@@ -38,7 +39,7 @@ namespace Coscine.ApiCommons
                     { $"{TraefikBackendPath}/url", $"http://{HostName}.{DomainName}:{Port}"},
                     { $"{TraefikBackendPath}/weight", $"{1}"},
                     { $"{TraefikFrontendPath}/backend", AppName},
-                    { $"{TraefikFrontendPath}/routes/{AppName}/rule", $"Host:{HostName}.{DomainName};PathPrefix:/{PathPrefix}"}
+                    { $"{TraefikFrontendPath}/routes/{AppName}/rule", $"Host:{ApiUrl.Replace("https://", "")};PathPrefix:/{PathPrefix}"}
                 };
             }
         }

src/ApiCommons/Configurator.cs

@@ -53,6 +53,8 @@ namespace Coscine.ApiCommons
                 }
             }
 
+            applicationInformation.ApiUrl = Configuration.GetString("coscine/local/api/additional/url");
+
             // Traefik Configuration
             foreach (var kv in applicationInformation.TraefikValues.ToArray())
             {