Add regression tests for 3 masters & 5 masters (#2154)

* added multi master configs

* fix fmt

examples/multiple-masters/kubernetes-3-masters.json

@@ -0,0 +1,35 @@
+{
+    "apiVersion": "vlabs",
+    "properties": {
+        "orchestratorProfile": {
+            "orchestratorType": "Kubernetes"
+        },
+        "masterProfile": {
+            "count": 3,
+            "dnsPrefix": "",
+            "vmSize": "Standard_D2_v2"
+        },
+        "agentPoolProfiles": [
+            {
+                "name": "agent",
+                "count": 3,
+                "vmSize": "Standard_D2_v2",
+                "availabilityProfile": "AvailabilitySet"
+            }
+        ],
+        "linuxProfile": {
+            "adminUsername": "azureuser",
+            "ssh": {
+                "publicKeys": [
+                    {
+                        "keyData": ""
+                    }
+                ]
+            }
+        },
+        "servicePrincipalProfile": {
+            "clientId": "",
+            "secret": ""
+        }
+    }
+}

examples/multiple-masters/kubernetes-5-masters.json

@@ -0,0 +1,35 @@
+{
+    "apiVersion": "vlabs",
+    "properties": {
+        "orchestratorProfile": {
+            "orchestratorType": "Kubernetes"
+        },
+        "masterProfile": {
+            "count": 5,
+            "dnsPrefix": "",
+            "vmSize": "Standard_D2_v2"
+        },
+        "agentPoolProfiles": [
+            {
+                "name": "agent",
+                "count": 3,
+                "vmSize": "Standard_D2_v2",
+                "availabilityProfile": "AvailabilitySet"
+            }
+        ],
+        "linuxProfile": {
+            "adminUsername": "azureuser",
+            "ssh": {
+                "publicKeys": [
+                    {
+                        "keyData": ""
+                    }
+                ]
+            }
+        },
+        "servicePrincipalProfile": {
+            "clientId": "",
+            "secret": ""
+        }
+    }
+}

test/acse-conf/acse-regression.json

@@ -28,9 +28,9 @@
       "cluster_definition": "disks-managed/kubernetes-vmas.json",
       "category": "managed-disk"
     },
-    { 
-      "cluster_definition": "disks-managed/swarm-preAttachedDisks-vmss.json", 
-      "category": "managed-disk" 
+    {
+      "cluster_definition": "disks-managed/swarm-preAttachedDisks-vmss.json",
+      "category": "managed-disk"
     },
     {
       "cluster_definition": "disks-managed/swarmmode-vmas.json",
@@ -81,6 +81,14 @@
       "cluster_definition": "kubernetes-config/kubernetes-rescheduler.json",
       "category": "config"
     },
+    {
+      "cluster_definition": "multiple-masters/kubernetes-3-masters.json",
+      "category": "multimaster"
+    },
+    {
+      "cluster_definition": "multiple-masters/kubernetes-5-masters.json",
+      "category": "multimaster"
+    },
     {
       "cluster_definition": "v20170131/swarmmode.json",
       "category": "version"