diff --git a/specification/operationalinsights/resource-manager/Microsoft.OperationalInsights/preview/2019-08-01-preview/Clusters.json b/specification/operationalinsights/resource-manager/Microsoft.OperationalInsights/preview/2019-08-01-preview/Clusters.json
new file mode 100644
index 000000000000..3d54b258332e
--- /dev/null
+++ b/specification/operationalinsights/resource-manager/Microsoft.OperationalInsights/preview/2019-08-01-preview/Clusters.json
@@ -0,0 +1,562 @@
+{
+  "swagger": "2.0",
+  "info": {
+    "title": "Azure Log Analytics",
+    "description": "Azure Log Analytics API reference",
+    "version": "2019-08-01-preview"
+  },
+  "host": "management.azure.com",
+  "schemes": [
+    "https"
+  ],
+  "consumes": [
+    "application/json"
+  ],
+  "produces": [
+    "application/json"
+  ],
+  "security": [
+    {
+      "azure_auth": [
+        "user_impersonation"
+      ]
+    }
+  ],
+  "securityDefinitions": {
+    "azure_auth": {
+      "type": "oauth2",
+      "authorizationUrl": "https://login.microsoftonline.com/common/oauth2/authorize",
+      "flow": "implicit",
+      "description": "Azure Active Directory OAuth2 Flow",
+      "scopes": {
+        "user_impersonation": "impersonate your user account"
+      }
+    }
+  },
+  "paths": {
+    "/subscriptions/{subscriptionId}/resourcegroups/{resourceGroupName}/providers/Microsoft.OperationalInsights/clusters": {
+      "get": {
+        "tags": [
+          "Clusters"
+        ],
+        "x-ms-examples": {
+          "ClustersGet": {
+            "$ref": "./examples/ClustersListByResourceGroup.json"
+          }
+        },
+        "operationId": "Clusters_ListByResourceGroup",
+        "description": "Gets Log Analytics clusters in a resource group.",
+        "parameters": [
+          {
+            "$ref": "#/parameters/ResourceGroupNameParameter"
+          },
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/SubscriptionIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "OK response definition.",
+            "schema": {
+              "$ref": "#/definitions/ClusterListResult"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
+          }
+        },
+        "x-ms-pageable": {
+          "nextLinkName": "nextLink"
+        }
+      }
+    },
+    "/subscriptions/{subscriptionId}/providers/Microsoft.OperationalInsights/clusters": {
+      "get": {
+        "tags": [
+          "Clusters"
+        ],
+        "x-ms-examples": {
+          "ClustersSubscriptionList": {
+            "$ref": "./examples/ClustersSubscriptionList.json"
+          }
+        },
+        "operationId": "Clusters_List",
+        "description": "Gets the Log Analytics clusters in a subscription.",
+        "parameters": [
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/SubscriptionIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "OK response definition.",
+            "schema": {
+              "$ref": "#/definitions/ClusterListResult"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
+          }
+        },
+        "x-ms-pageable": {
+          "nextLinkName": "nextLink"
+        }
+      }
+    },
+    "/subscriptions/{subscriptionId}/resourcegroups/{resourceGroupName}/providers/Microsoft.OperationalInsights/clusters/{clusterName}": {
+      "put": {
+        "tags": [
+          "Clusters"
+        ],
+        "x-ms-examples": {
+          "ClustersCreate": {
+            "$ref": "./examples/ClustersCreate.json"
+          }
+        },
+        "operationId": "Clusters_CreateOrUpdate",
+        "description": "Create or update a Log Analytics cluster.",
+        "parameters": [
+          {
+            "name": "resourceGroupName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The resource group name of the Log Analytics cluster."
+          },
+          {
+            "name": "clusterName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "pattern": "^[A-Za-z0-9][A-Za-z0-9-]+[A-Za-z0-9]$",
+            "minLength": 4,
+            "maxLength": 63,
+            "description": "The name of the Log Analytics cluster."
+          },
+          {
+            "name": "parameters",
+            "in": "body",
+            "required": true,
+            "schema": {
+              "$ref": "#/definitions/Cluster"
+            },
+            "description": "The parameters required to create or update a Log Analytics cluster."
+          },
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/SubscriptionIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "OK response definition.",
+            "schema": {
+              "$ref": "#/definitions/Cluster"
+            }
+          },
+          "201": {
+            "description": "Created response definition.",
+            "schema": {
+              "$ref": "#/definitions/Cluster"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
+          }
+        },
+        "x-ms-long-running-operation": true
+      },
+      "delete": {
+        "tags": [
+          "Clusters"
+        ],
+        "x-ms-examples": {
+          "ClustersDelete": {
+            "$ref": "./examples/ClustersDelete.json"
+          }
+        },
+        "operationId": "Clusters_Delete",
+        "description": "Deletes a cluster instance.",
+        "parameters": [
+          {
+            "name": "resourceGroupName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The resource group name of the Log Analytics cluster."
+          },
+          {
+            "name": "clusterName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "Name of the Log Analytics Cluster."
+          },
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/SubscriptionIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "OK response definition."
+          },
+          "204": {
+            "description": "NoContent response definition."
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
+          }
+        }
+      },
+      "get": {
+        "tags": [
+          "Clusters"
+        ],
+        "x-ms-examples": {
+          "ClustersGet": {
+            "$ref": "./examples/ClustersGet.json"
+          }
+        },
+        "operationId": "Clusters_Get",
+        "description": "Gets a Log Analytics cluster instance.",
+        "parameters": [
+          {
+            "name": "resourceGroupName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The resource group name of the Log Analytics cluster."
+          },
+          {
+            "name": "clusterName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "Name of the Log Analytics Cluster."
+          },
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/SubscriptionIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "OK response definition.",
+            "schema": {
+              "$ref": "#/definitions/Cluster"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
+          }
+        }
+      },
+      "patch": {
+        "tags": [
+          "Clusters"
+        ],
+        "x-ms-examples": {
+          "ClustersPatch": {
+            "$ref": "./examples/ClustersUpdate.json"
+          }
+        },
+        "operationId": "Clusters_Update",
+        "description": "Updates a Log Analytics cluster.",
+        "parameters": [
+          {
+            "name": "resourceGroupName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The resource group name of the cluster."
+          },
+          {
+            "name": "clusterName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "pattern": "^[A-Za-z0-9][A-Za-z0-9-]+[A-Za-z0-9]$",
+            "minLength": 4,
+            "maxLength": 63,
+            "description": "The name of the cluster."
+          },
+          {
+            "name": "parameters",
+            "in": "body",
+            "required": true,
+            "schema": {
+              "$ref": "#/definitions/ClusterPatch"
+            },
+            "description": "The parameters required to patch a Log Analytics cluster."
+          },
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/SubscriptionIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "The existing cluster was successfully updated. Check provisioningStatus to see detailed status.",
+            "schema": {
+              "$ref": "#/definitions/Cluster"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
+          }
+        }
+      }
+    }
+  },
+  "definitions": {
+    "ClusterProperties": {
+      "properties": {
+        "nextLink": {
+          "description": "The link used to get the next page of recommendations.",
+          "type": "string"
+        },
+        "clusterId": {
+          "type": "string",
+          "readOnly": true,
+          "description": "The ID associated with the cluster."
+        },
+        "provisioningState": {
+          "type": "string",
+          "readOnly": true,
+          "description": "The provisioning state of the cluster.",
+          "enum": [
+            "Creating",
+            "Succeeded",
+            "Failed",
+            "Canceled",
+            "Deleting",
+            "ProvisioningAccount"
+          ],
+          "x-ms-enum": {
+            "name": "EntityStatus",
+            "modelAsString": true
+          }
+        },
+        "encryptionKeyUri": {
+          "type": "string",
+          "description": "The Key Vault key or certificate path associated with the Log Analytics cluster."
+        }
+      },
+      "description": "Cluster properties."
+    },
+    "ErrorResponse": {
+      "description": "Error response indicates that the service is not able to process the incoming request. The reason is provided in the error message.",
+      "type": "object",
+      "properties": {
+        "error": {
+          "description": "The details of the error.",
+          "$ref": "#/definitions/ErrorDetails"
+        }
+      }
+    },
+    "ErrorDetails": {
+      "description": "The details of the error.",
+      "properties": {
+        "code": {
+          "description": "Error code.",
+          "type": "string",
+          "readOnly": true
+        },
+        "message": {
+          "description": "Error message indicating why the operation failed.",
+          "type": "string",
+          "readOnly": true
+        },
+        "target": {
+          "description": "The target of the particular error.",
+          "type": "string",
+          "readOnly": true
+        }
+      }
+    },
+    "ClusterPatchProperties": {
+      "properties": {
+        "encryptionKeyUri": {
+          "type": "string",
+          "description": "The Key Vault key or certificate path associated with the Log Analytics cluster."
+        }
+      },
+      "description": "Log Analytics cluster patch properties."
+    },
+    "ClusterPatch": {
+      "properties": {
+        "properties": {
+          "x-ms-client-flatten": true,
+          "$ref": "#/definitions/ClusterPatchProperties",
+          "description": "Log Analytics cluster properties."
+        },
+        "tags": {
+          "type": "object",
+          "additionalProperties": {
+            "type": "string"
+          },
+          "description": "Resource tags"
+        }
+      },
+      "description": "The top level Log Analytics cluster resource container.",
+      "x-ms-azure-resource": true
+    },
+    "Cluster": {
+      "properties": {
+        "identity": {
+          "$ref": "#/definitions/Identity",
+          "description": "The identity of the resource."
+        },
+        "properties": {
+          "x-ms-client-flatten": true,
+          "$ref": "#/definitions/ClusterProperties",
+          "description": "Log Analytics cluster properties."
+        }
+      },
+      "allOf": [
+        {
+        "$ref": "#/definitions/Resource"
+        }
+      ],
+      "description": "The top level Log Analytics cluster resource container.",
+      "x-ms-azure-resource": true
+    },
+    "ClusterListResult": {
+      "properties": {
+        "nextLink": {
+          "description": "The link used to get the next page of recommendations.",
+          "type": "string"
+        },
+        "value": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/Cluster"
+          },
+          "description": "A list of Log Analytics clusters."
+        }
+      },
+      "description": "The list clusters operation response."
+    },
+    "Identity": {
+      "properties": {
+        "principalId": {
+          "readOnly": true,
+          "type": "string",
+          "description": "The principal ID of resource identity."
+        },
+        "tenantId": {
+          "readOnly": true,
+          "type": "string",
+          "description": "The tenant ID of resource."
+        },
+        "type": {
+          "type": "string",
+          "description": "The identity type.",
+          "enum": [
+            "SystemAssigned"
+          ],
+          "x-ms-enum": {
+            "name": "IdentityType",
+            "modelAsString": false
+          }
+        }
+      },
+      "required": [
+        "type"
+      ],
+      "description": "Identity for the resource."
+    },
+    "Resource": {
+      "properties": {
+        "id": {
+          "readOnly": true,
+          "type": "string",
+          "description": "Resource Id"
+        },
+        "name": {
+          "readOnly": true,
+          "type": "string",
+          "description": "Resource name"
+        },
+        "type": {
+          "readOnly": true,
+          "type": "string",
+          "description": "Resource type"
+        },
+        "location": {
+          "type": "string",
+          "description": "Resource location"
+        },
+        "tags": {
+          "type": "object",
+          "additionalProperties": {
+            "type": "string"
+          },
+          "description": "Resource tags"
+        }
+      },
+      "description": "The resource definition.",
+      "x-ms-azure-resource": true
+    }
+  },
+  "parameters": {
+    "SubscriptionIdParameter": {
+      "name": "subscriptionId",
+      "in": "path",
+      "required": true,
+      "type": "string",
+      "description": "Gets subscription credentials which uniquely identify Microsoft Azure subscription. The subscription ID forms part of the URI for every service call."
+    },
+    "ApiVersionParameter": {
+      "name": "api-version",
+      "in": "query",
+      "required": true,
+      "type": "string",
+      "description": "Client Api Version."
+    },
+    "ResourceGroupNameParameter": {
+      "name": "resourceGroupName",
+      "in": "path",
+      "required": true,
+      "type": "string",
+      "x-ms-parameter-location": "method",
+      "description": "The name of the resource group to get. The name is case insensitive.",
+      "pattern": "^[-\\w\\._\\(\\)]+$",
+      "minLength": 1,
+      "maxLength": 90
+    }
+  }
+}
diff --git a/specification/operationalinsights/resource-manager/Microsoft.OperationalInsights/preview/2019-08-01-preview/examples/ClustersCreate.json b/specification/operationalinsights/resource-manager/Microsoft.OperationalInsights/preview/2019-08-01-preview/examples/ClustersCreate.json
new file mode 100644
index 000000000000..7b1b0ca8bda4
--- /dev/null
+++ b/specification/operationalinsights/resource-manager/Microsoft.OperationalInsights/preview/2019-08-01-preview/examples/ClustersCreate.json
@@ -0,0 +1,61 @@
+{
+  "parameters": {
+    "resourceGroupName": "oiautorest6685",
+    "clusterName": "oiautorest6685",
+    "parameters": {
+      "properties": {
+        "encryptionKeyUri": "https://aztest2170.vault.azure.net/certificates/aztest2170cert/654ft6c4e63845cbb50fd6fg51540429"
+      },
+      "location": "australiasoutheast",
+      "tags": {
+        "tag1": "val1"
+      }
+    },
+    "api-version": "2019-08-01-preview",
+    "subscriptionId": "00000000-0000-0000-0000-00000000000"
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "id": "/subscriptions/00000000-0000-0000-0000-000000000005/resourcegroups/oiautorest6685/providers/microsoft.operationalinsights/clusters/aztest2170",
+        "identity": {
+          "principalId": "356d057d-cba5-44dd-8a30-b2e547bc416b",
+          "tenantId": "72f988bf-86f1-41af-91ab-2d7cd011db47",
+          "type": "SystemAssigned"
+        },
+        "name": "AzTest2170",
+        "type": "Microsoft.OperationalInsights/clusters",
+        "location": "australiasoutheast",
+        "tags": {
+          "tag1": "val1"
+        },
+        "properties": {
+          "clusterId": "bc089d7b-485c-4aff-a71e-c00f362d8d2f",
+          "provisioningState": "Creating",
+          "encryptionKeyUri": "https://aztest2170.vault.azure.net/certificates/aztest2170cert/654ft6c4e63845cbb50fd6fg51540429"
+        }
+      }
+    },
+    "201": {
+      "body": {
+        "id": "/subscriptions/00000000-0000-0000-0000-000000000005/resourcegroups/oiautorest6685/providers/microsoft.operationalinsights/clusters/aztest2170",
+        "identity": {
+          "principalId": "356d057d-cba5-44dd-8a30-b2e547bc416b",
+          "tenantId": "72f988bf-86f1-41af-91ab-2d7cd011db47",
+          "type": "SystemAssigned"
+        },
+        "name": "AzTest2170",
+        "type": "Microsoft.OperationalInsights/clusters",
+        "location": "australiasoutheast",
+        "tags": {
+          "tag1": "val1"
+        },
+        "properties": {
+          "clusterId": "bc089d7b-485c-4aff-a71e-c00f362d8d2f",
+          "provisioningState": "Creating",
+          "encryptionKeyUri": "https://aztest2170.vault.azure.net/certificates/aztest2170cert/654ft6c4e63845cbb50fd6fg51540429"
+        }
+      }
+    }
+  }
+}
diff --git a/specification/operationalinsights/resource-manager/Microsoft.OperationalInsights/preview/2019-08-01-preview/examples/ClustersDelete.json b/specification/operationalinsights/resource-manager/Microsoft.OperationalInsights/preview/2019-08-01-preview/examples/ClustersDelete.json
new file mode 100644
index 000000000000..ef5a1aa640e8
--- /dev/null
+++ b/specification/operationalinsights/resource-manager/Microsoft.OperationalInsights/preview/2019-08-01-preview/examples/ClustersDelete.json
@@ -0,0 +1,12 @@
+{
+  "parameters": {
+    "resourceGroupName": "oiautorest6685",
+    "clusterName": "oiautorest6685",
+    "api-version": "2019-08-01-preview",
+    "subscriptionId": "00000000-0000-0000-0000-00000000000"
+  },
+  "responses": {
+    "200": {},
+    "204": {}
+  }
+}
diff --git a/specification/operationalinsights/resource-manager/Microsoft.OperationalInsights/preview/2019-08-01-preview/examples/ClustersGet.json b/specification/operationalinsights/resource-manager/Microsoft.OperationalInsights/preview/2019-08-01-preview/examples/ClustersGet.json
new file mode 100644
index 000000000000..bbbd3287a60c
--- /dev/null
+++ b/specification/operationalinsights/resource-manager/Microsoft.OperationalInsights/preview/2019-08-01-preview/examples/ClustersGet.json
@@ -0,0 +1,46 @@
+{
+  "parameters": {
+    "resourceGroupName": "oiautorest6685",
+    "clusterName": "oiautorest6685",
+    "api-version": "2019-08-01-preview",
+    "subscriptionId": "00000000-0000-0000-0000-00000000000"
+  },
+  "responses": {
+    "200": {
+      "body": [
+        {
+          "properties": {
+            "clusterId": "5b02755b-5bf4-430c-9487-45502a2a7e62",
+            "provisioningState": "Succeeded",
+            "encryptionKeyUri": "https://aztest2170.vault.azure.net/certificates/aztest2170cert/654ft6c4e63845cbb50fd6fg51540429"
+          },
+          "id": "/subscriptions/594038b5-1093-476e-a366-482775671c11/resourcegroups/calbot-rg/providers/microsoft.operationalinsights/clusters/testresourcelock",
+          "identity": {
+            "principalId": "356d057d-cba5-44dd-8a30-b2e547bc416b",
+            "tenantId": "72f988bf-86f1-41af-91ab-2d7cd011db47",
+            "type": "SystemAssigned"
+          },
+          "name": "TestResourceLock",
+          "type": "Microsoft.OperationalInsights/clusters",
+          "location": "eastus"
+        },
+        {
+          "properties": {
+            "clusterId": "5b02755b-5bf4-430c-9487-45502a2a7e62",
+            "provisioningState": "Succeeded",
+            "encryptionKeyUri": "https://aztest2170.vault.azure.net/certificates/aztest2170cert/654ft6c4e63845cbb50fd6fg51540429"
+          },
+          "id": "/subscriptions/594038b5-1093-476e-a366-482775671c11/resourcegroups/mms-eus/providers/microsoft.operationalinsights/clusters/southukws",
+          "identity": {
+            "principalId": "356d057d-cba5-44dd-8a30-b2e547bc416b",
+            "tenantId": "72f988bf-86f1-41af-91ab-2d7cd011db47",
+            "type": "SystemAssigned"
+          },
+          "name": "SouthUKWS",
+          "type": "Microsoft.OperationalInsights/clusters",
+          "location": "East US"
+        }
+      ]
+    }
+  }
+}
diff --git a/specification/operationalinsights/resource-manager/Microsoft.OperationalInsights/preview/2019-08-01-preview/examples/ClustersListByResourceGroup.json b/specification/operationalinsights/resource-manager/Microsoft.OperationalInsights/preview/2019-08-01-preview/examples/ClustersListByResourceGroup.json
new file mode 100644
index 000000000000..a1ff7a25d694
--- /dev/null
+++ b/specification/operationalinsights/resource-manager/Microsoft.OperationalInsights/preview/2019-08-01-preview/examples/ClustersListByResourceGroup.json
@@ -0,0 +1,29 @@
+{
+  "parameters": {
+    "resourceGroupName": "oiautorest6685",
+    "api-version": "2019-08-01-preview",
+    "subscriptionId": "00000000-0000-0000-0000-00000000000"
+  },
+  "responses": {
+    "200": {
+      "body": [
+        {
+          "properties": {
+            "clusterId": "5b02755b-5bf4-430c-9487-45502a2a7e62",
+            "provisioningState": "Succeeded",
+            "encryptionKeyUri": "https://aztest2170.vault.azure.net/certificates/aztest2170cert/654ft6c4e63845cbb50fd6fg51540429"
+          },
+          "id": "/subscriptions/594038b5-1093-476e-a366-482775671c11/resourcegroups/calbot-rg/providers/microsoft.operationalinsights/clusters/testresourcelock",
+          "identity": {
+            "principalId": "356d057d-cba5-44dd-8a30-b2e547bc416b",
+            "tenantId": "72f988bf-86f1-41af-91ab-2d7cd011db47",
+            "type": "SystemAssigned"
+          },
+          "name": "TestResourceLock",
+          "type": "Microsoft.OperationalInsights/clusters",
+          "location": "eastus"
+        }
+      ]
+    }
+  }
+}
diff --git a/specification/operationalinsights/resource-manager/Microsoft.OperationalInsights/preview/2019-08-01-preview/examples/ClustersSubscriptionList.json b/specification/operationalinsights/resource-manager/Microsoft.OperationalInsights/preview/2019-08-01-preview/examples/ClustersSubscriptionList.json
new file mode 100644
index 000000000000..1e7b4fe07231
--- /dev/null
+++ b/specification/operationalinsights/resource-manager/Microsoft.OperationalInsights/preview/2019-08-01-preview/examples/ClustersSubscriptionList.json
@@ -0,0 +1,28 @@
+{
+  "parameters": {
+    "api-version": "2019-08-01-preview",
+    "subscriptionId": "00000000-0000-0000-0000-00000000000"
+  },
+  "responses": {
+    "200": {
+      "body": [
+        {
+          "properties": {
+            "clusterId": "5b02755b-5bf4-430c-9487-45502a2a7e62",
+            "provisioningState": "Succeeded",
+            "encryptionKeyUri": "https://aztest2170.vault.azure.net/certificates/aztest2170cert/654ft6c4e63845cbb50fd6fg51540429"
+          },
+          "id": "/subscriptions/594038b5-1093-476e-a366-482775671c11/resourcegroups/calbot-rg/providers/microsoft.operationalinsights/clusters/testresourcelock",
+          "identity": {
+            "principalId": "356d057d-cba5-44dd-8a30-b2e547bc416b",
+            "tenantId": "72f988bf-86f1-41af-91ab-2d7cd011db47",
+            "type": "SystemAssigned"
+          },
+          "name": "TestResourceLock",
+          "type": "Microsoft.OperationalInsights/clusters",
+          "location": "eastus"
+        }
+      ]
+    }
+  }
+}
diff --git a/specification/operationalinsights/resource-manager/Microsoft.OperationalInsights/preview/2019-08-01-preview/examples/ClustersUpdate.json b/specification/operationalinsights/resource-manager/Microsoft.OperationalInsights/preview/2019-08-01-preview/examples/ClustersUpdate.json
new file mode 100644
index 000000000000..4c58b3ab8e8a
--- /dev/null
+++ b/specification/operationalinsights/resource-manager/Microsoft.OperationalInsights/preview/2019-08-01-preview/examples/ClustersUpdate.json
@@ -0,0 +1,29 @@
+{
+  "parameters": {
+    "resourceGroupName": "oiautorest6685",
+    "clusterName": "oiautorest6685",
+    "parameters": {
+      "properties": {
+        "encryptionKeyUri": "https://aztest2170.vault.azure.net/certificates/aztest2170cert/654ft6c4e63845cbb50fd6fg51540429"
+      },
+      "tags": {
+        "tag1": "val1"
+      }
+    },
+    "api-version": "2019-08-01-preview",
+    "subscriptionId": "00000000-0000-0000-0000-00000000000"
+  },
+  "responses": {
+    "200": {
+      "body": {
+          "properties": {
+            "encryptionKeyUri": "https://aztest2170.vault.azure.net/certificates/aztest2170cert/654ft6c4e63845cbb50fd6fg51540429"
+          },
+        "location": "australiasoutheast",
+        "tags": {
+          "tag1": "val1"
+        }
+      }
+    }
+  }
+}
diff --git a/specification/operationalinsights/resource-manager/readme.md b/specification/operationalinsights/resource-manager/readme.md
index 7b2b5e8d19e1..19a7cc378fac 100644
--- a/specification/operationalinsights/resource-manager/readme.md
+++ b/specification/operationalinsights/resource-manager/readme.md
@@ -50,6 +50,15 @@ input-file:
 - Microsoft.OperationalInsights/stable/2015-03-20/OperationalInsights.json
 ```
 
+### Tag: package-2019-08-preview
+
+These settings apply only when `--tag=package-2019-08-preview` is specified on the command line.
+
+``` yaml $(tag) == 'package-2019-08-preview'
+input-file:
+- Microsoft.OperationalInsights/preview/2019-08-01-preview/Clusters.json
+```
+
 ---
 # Code Generation