Merge branch 'Hotfix/1551-missingPrincipal' into 'master'

Fix: added missing principal coscine/issues#1551

See merge request !10

src/ResourceTypeWaterbutlerRdsS3.Tests/ResourceTypeWaterbutlerS3Tests.cs

@@ -30,6 +30,7 @@ namespace Coscine.ResourceTypeWaterbutlerRdsS3.Test
 
         private string _readUser;
         private string _writeUser;
+        private string _accessKey;
 
         [OneTimeSetUp]
         public void Setup()
@@ -45,7 +46,7 @@ namespace Coscine.ResourceTypeWaterbutlerRdsS3.Test
             _readUser = $"{_testPrefix}.read_{_guid}";
             _writeUser = $"{_testPrefix}.write_{_guid}";
             _endpoint = _configuration.GetString("coscine/global/rds/ecs-rwth/rds-s3/s3_endpoint");
-
+            _accessKey = _configuration.GetString("coscine/global/rds/ecs-rwth/rds-s3/object_user_name");
             _rdsS3EcsManager = new EcsManager
             {
                 EcsManagerConfiguration = new EcsManagerConfiguration
@@ -101,6 +102,7 @@ namespace Coscine.ResourceTypeWaterbutlerRdsS3.Test
             resourceType.CreateResource(new Dictionary<string, string> { 
                 { "bucketname", _bucketName },
                 { "size", $"{_quota}" },
+                { "accessKey", "" },
                 { "accessKeyRead", _readUser },
                 { "secretKeyRead", _secretKey },
                 { "accessKeyWrite", _writeUser },

src/ResourceTypeWaterbutlerRdsS3/ResourceTypeWaterbutlerRdsS3.cs

@@ -229,7 +229,7 @@ namespace Coscine.ResourceTypeWaterbutlerRdsS3
                                         ""Action"": [""s3:PutObject"", ""s3:GetObject"", ""s3:GetObjectAcl"", ""s3:GetObjectVersion"", ""s3:DeleteObject"", ""s3:DeleteObjectVersion""],
                                         ""Effect"": ""Allow"",
                                         ""Resource"": [""{options["bucketname"]}/*""],
-                                        ""Principal"": [""{options["accessKeyWrite"]}""]
+                                        ""Principal"": [""{options["accessKeyWrite"]}"", ""{options["accessKey"]}""]
                                     }},
                                     {{
                                         ""Action"": [""s3:GetObject"", ""s3:GetObjectAcl"", ""s3:GetObjectVersion""],