We don't have cloud anymore replace it with provider (#54)

* We dont have cloud anymore replace it with provider

 update the example for azure

* fix the variable name

* Update the readme file to reflect the changes

examples/azure/README.md

@@ -13,25 +13,56 @@ Currently, values for the following CIDRs are obtained from the similar clusters
 
 You can define multiple workers using the following configuration:
 
-```bash
+```hcl-terraform
 worker {
     name           = "cpu-worker1"
-    machinetype    = "Standard_D2_v3"
-    autoscalermin  = 2
-    autoscalermax  = 4
-    maxsurge       = 1
-    maxunavailable = 0
-    volumesize     = "35Gi"
-    volumetype     = "standard"
-  }
+    minimum  = 2
+    maximum  = 4
+    max_surge       = 1
+    max_unavailable = 0
+    volume {
+      size = "50Gi"
+      type = "Standard_LRS"
+    }
+    machine {
+      image  {
+        name = "coreos"
+        version = "2303.3.0"
+      }
+      type = "Standard_A4_v2"
+    }
+ }
  worker {
     name           = "cpu-worker2"
-    machinetype    = "Standard_D2_v3"
-    autoscalermin  = 2
-    autoscalermax  = 4
-    maxsurge       = 1
-    maxunavailable = 0
-    volumesize     = "20Gi"
-    volumetype     = "standard"
+    minimum  = 2
+    maximum  = 4
+    max_surge       = 1
+    max_unavailable = 0
+    volume {
+          size = "50Gi"
+          type = "Standard_LRS"
+        }
+    machine {
+      image  {
+        name = "coreos"
+        version = "2303.3.0"
+      }
+      type = "Standard_A4_v2"
+    }
+  }
+```
+
+The infrastructure config allows to pass extra information to the cloud provider. It can be done in following way:
+```hcl-terraform
+infrastructure_config {
+  azure {
+     networks {
+       vnet {
+         cidr = "10.250.0.0/16"
+       }
+       workers = "10.250.0.0/19"
+       service_endpoints = ["microsoft.test"]
+     }
   }
+}
 ```

examples/azure/main.tf

@@ -32,35 +32,59 @@ resource "gardener_shoot" "test_cluster" {
   }
 
   spec {
-    cloud {
-      profile = "az"
-      region  = "westeurope"
-
-      secret_binding_ref {
-        name = "<secret_binding>"
+    cloud_profile_name = "az"
+    secret_binding_name = "<secret_binding>"
+    purpose = "evaluation"
+    networking {
+      nodes = "10.250.0.0/19"
+      pods= "100.96.0.0/11"
+      services= "100.64.0.0/13"
+      type= "calico"
+    }
+    maintenance {
+      auto_update{
+        kubernetes_version = true
+        machine_image_version = true
       }
 
-      azure {
-        networks {
-          vnet {
-            cidr = "10.250.0.0/16"
+      time_window {
+        begin = "030000+0000"
+        end = "040000+0000"
+      }
+    }
+    provider {
+      type = "azure"
+      infrastructure_config {
+        azure {
+          networks {
+            vnet {
+              cidr = "10.250.0.0/16"
+            }
+            workers = "10.250.0.0/19"
+           # service_endpoints = ["microsoft.test"]
           }
-          workers = "10.250.0.0/19"
         }
-
-        worker {
-          name            = "cpu-worker"
-          machine_type    = "Standard_D2_v3"
-          auto_scaler_min = 3
-          auto_scaler_max = 3
-          max_surge       = 1
-          max_unavailable = 0
-          volume_type     = "standard"
-          volume_size     = "50Gi"
+      }
+      worker {
+        max_surge = 1
+        max_unavailable = 0
+        maximum = 2
+        minimum = 2
+        volume {
+          size = "50Gi"
+          type = "Standard_LRS"
+        }
+        name = "cpu-worker"
+        machine {
+          image  {
+            name = "coreos"
+            version = "2303.3.0"
+          }
+          type = "Standard_A4_v2"
         }
       }
     }
-
+    region =  "westeurope"
     kubernetes {
       version = "1.15.4"
     }

flatten/flatten_spec.go

@@ -23,7 +23,7 @@ func FlattenShoot(in corev1beta1.ShootSpec, d *schema.ResourceData, specPrefix .
 	}
 	configProvider := d.Get(prefix + "spec.0.provider").([]interface{})
 	flattenedProvider := flattenProvider(in.Provider)
-	att["cloud"] = expand.RemoveInternalKeysArraySpec(flattenedProvider, configProvider)
+	att["provider"] = expand.RemoveInternalKeysArraySpec(flattenedProvider, configProvider)
 	configDNS := d.Get(prefix + "spec.0.dns").([]interface{})
 	flattenedDNS := flattenDNS(in.DNS)
 	att["dns"] = expand.RemoveInternalKeysArraySpec(flattenedDNS, configDNS)