Flow Logs - Create Or Update

Reference

Service:: Network Watcher

API Version:: 2024-05-01

Create or update a flow log for the specified network security group.

PUT https://management.azure.com/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Network/networkWatchers/{networkWatcherName}/flowLogs/{flowLogName}?api-version=2024-05-01

URI Parameters

Name	In	Required	Type	Description
flowLogName	path	True	string	The name of the flow log.
networkWatcherName	path	True	string	The name of the network watcher.
resourceGroupName	path	True	string	The name of the resource group.
subscriptionId	path	True	string	The subscription credentials which uniquely identify the Microsoft Azure subscription. The subscription ID forms part of the URI for every service call.
api-version	query	True	string	Client API version.

Request Body

Name	Required	Type	Description
properties.storageId	True	string	ID of the storage account which is used to store the flow log.
properties.targetResourceId	True	string	ID of network security group to which flow log will be applied.
id		string	Resource ID.
identity		ManagedServiceIdentity	FlowLog resource Managed Identity
location		string	Resource location.
properties.enabled		boolean	Flag to enable/disable flow logging.
properties.enabledFilteringCriteria		string	Optional field to filter network traffic logs based on SrcIP, SrcPort, DstIP, DstPort, Protocol, Encryption, Direction and Action. If not specified, all network traffic will be logged.
properties.flowAnalyticsConfiguration		TrafficAnalyticsProperties	Parameters that define the configuration of traffic analytics.
properties.format		FlowLogFormatParameters	Parameters that define the flow log format.
properties.retentionPolicy		RetentionPolicyParameters	Parameters that define the retention policy for flow log.
tags		object	Resource tags.

Responses

Name	Type	Description
200 OK	FlowLog	Update successful. The operation returns the resulting flow log resource.
201 Created	FlowLog	Request successful. The operation returns the resulting flow log resource.
Other Status Codes	ErrorResponse	Error response describing why the operation failed.

Security

azure_auth

Azure Active Directory OAuth2 Flow.

Type: oauth2
Flow: implicit
Authorization URL: https://login.microsoftonline.com/common/oauth2/authorize

Scopes

Name	Description
user_impersonation	impersonate your user account

Examples

Create or update flow log

Sample request

HTTP

PUT https://management.azure.com/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Network/networkWatchers/nw1/flowLogs/fl?api-version=2024-05-01

{
  "location": "centraluseuap",
  "properties": {
    "targetResourceId": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Network/networkSecurityGroups/desmondcentral-nsg",
    "storageId": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Storage/storageAccounts/nwtest1mgvbfmqsigdxe",
    "enabledFilteringCriteria": "srcIP=158.255.7.8 || dstPort=56891",
    "enabled": true,
    "format": {
      "type": "JSON",
      "version": 1
    }
  },
  "identity": {
    "type": "UserAssigned",
    "userAssignedIdentities": {
      "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.ManagedIdentity/userAssignedIdentities/id1": {}
    }
  }
}

Sample response

Status code:: 200

{
  "name": "Microsoft.Networkdesmond-rgdesmondcentral-nsg",
  "id": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Network/networkWatchers/nw/FlowLogs/fl",
  "etag": "W/\"00000000-0000-0000-0000-000000000000\"",
  "properties": {
    "provisioningState": "Updating",
    "targetResourceId": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Network/networkSecurityGroups/desmondcentral-nsg",
    "targetResourceGuid": "00000000-0000-0000-0000-000000000000",
    "storageId": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Storage/storageAccounts/nwtest1mgvbfmqsigdxe",
    "enabledFilteringCriteria": "srcIP=158.255.7.8 || dstPort=56891",
    "enabled": true,
    "flowAnalyticsConfiguration": {},
    "retentionPolicy": {
      "days": 0,
      "enabled": false
    },
    "format": {
      "type": "JSON",
      "version": 1
    }
  },
  "type": "Microsoft.Network/networkWatchers/FlowLogs",
  "identity": {
    "type": "UserAssigned",
    "userAssignedIdentities": {
      "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.ManagedIdentity/userAssignedIdentities/id1": {
        "clientId": "c16d15e1-f60a-40e4-8a05-df3d3f655c14",
        "principalId": "e3858881-e40c-43bd-9cde-88da39c05023"
      }
    }
  },
  "location": "centraluseuap"
}

Status code:: 201

{
  "name": "Microsoft.Networkdesmond-rgdesmondcentral-nsg",
  "id": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Network/networkWatchers/nw/FlowLogs/fl",
  "etag": "W/\"00000000-0000-0000-0000-000000000000\"",
  "properties": {
    "provisioningState": "Succeeded",
    "targetResourceId": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Network/networkSecurityGroups/desmondcentral-nsg",
    "targetResourceGuid": "00000000-0000-0000-0000-000000000000",
    "storageId": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Storage/storageAccounts/nwtest1mgvbfmqsigdxe",
    "enabledFilteringCriteria": "srcIP=158.255.7.8 || dstPort=56891",
    "enabled": true,
    "flowAnalyticsConfiguration": {},
    "retentionPolicy": {
      "days": 0,
      "enabled": false
    },
    "format": {
      "type": "JSON",
      "version": 1
    }
  },
  "type": "Microsoft.Network/networkWatchers/FlowLogs",
  "identity": {
    "type": "UserAssigned",
    "userAssignedIdentities": {
      "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.ManagedIdentity/userAssignedIdentities/id1": {
        "clientId": "c16d15e1-f60a-40e4-8a05-df3d3f655c14",
        "principalId": "e3858881-e40c-43bd-9cde-88da39c05023"
      }
    }
  },
  "location": "centraluseuap"
}

Definitions

Name	Description
ErrorDetails	Common error details representation.
ErrorResponse	The error object.
FlowLog	A flow log resource.
FlowLogFormatParameters	Parameters that define the flow log format.
FlowLogFormatType	The file type of flow log.
ManagedServiceIdentity	Identity for the resource.
ProvisioningState	The current provisioning state.
ResourceIdentityType	The type of identity used for the resource. The type 'SystemAssigned, UserAssigned' includes both an implicitly created identity and a set of user assigned identities. The type 'None' will remove any identities from the virtual machine.
RetentionPolicyParameters	Parameters that define the retention policy for flow log.
TrafficAnalyticsConfigurationProperties	Parameters that define the configuration of traffic analytics.
TrafficAnalyticsProperties	Parameters that define the configuration of traffic analytics.
UserAssignedIdentities	The list of user identities associated with resource. The user identity dictionary key references will be ARM resource ids in the form: '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ManagedIdentity/userAssignedIdentities/{identityName}'.

ErrorDetails

Common error details representation.

Name	Type	Description
code	string	Error code.
message	string	Error message.
target	string	Error target.

ErrorResponse

The error object.

Name	Type	Description
error	ErrorDetails	Error The error details object.

FlowLog

A flow log resource.

Name	Type	Description
etag	string	A unique read-only string that changes whenever the resource is updated.
id	string	Resource ID.
identity	ManagedServiceIdentity	FlowLog resource Managed Identity
location	string	Resource location.
name	string	Resource name.
properties.enabled	boolean	Flag to enable/disable flow logging.
properties.enabledFilteringCriteria	string	Optional field to filter network traffic logs based on SrcIP, SrcPort, DstIP, DstPort, Protocol, Encryption, Direction and Action. If not specified, all network traffic will be logged.
properties.flowAnalyticsConfiguration	TrafficAnalyticsProperties	Parameters that define the configuration of traffic analytics.
properties.format	FlowLogFormatParameters	Parameters that define the flow log format.
properties.provisioningState	ProvisioningState	The provisioning state of the flow log.
properties.retentionPolicy	RetentionPolicyParameters	Parameters that define the retention policy for flow log.
properties.storageId	string	ID of the storage account which is used to store the flow log.
properties.targetResourceGuid	string	Guid of network security group to which flow log will be applied.
properties.targetResourceId	string	ID of network security group to which flow log will be applied.
tags	object	Resource tags.
type	string	Resource type.

FlowLogFormatParameters

Parameters that define the flow log format.

Name	Type	Default value	Description
type	FlowLogFormatType		The file type of flow log.
version	integer	0	The version (revision) of the flow log.

FlowLogFormatType

The file type of flow log.

Name	Type	Description
JSON	string

ManagedServiceIdentity

Identity for the resource.

Name	Type	Description
principalId	string	The principal id of the system assigned identity. This property will only be provided for a system assigned identity.
tenantId	string	The tenant id of the system assigned identity. This property will only be provided for a system assigned identity.
type	ResourceIdentityType	The type of identity used for the resource. The type 'SystemAssigned, UserAssigned' includes both an implicitly created identity and a set of user assigned identities. The type 'None' will remove any identities from the virtual machine.
userAssignedIdentities	UserAssignedIdentities	The list of user identities associated with resource. The user identity dictionary key references will be ARM resource ids in the form: '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ManagedIdentity/userAssignedIdentities/{identityName}'.

ProvisioningState

The current provisioning state.

Name	Type	Description
Deleting	string
Failed	string
Succeeded	string
Updating	string

ResourceIdentityType

The type of identity used for the resource. The type 'SystemAssigned, UserAssigned' includes both an implicitly created identity and a set of user assigned identities. The type 'None' will remove any identities from the virtual machine.

Name	Type	Description
None	string
SystemAssigned	string
SystemAssigned, UserAssigned	string
UserAssigned	string

RetentionPolicyParameters

Parameters that define the retention policy for flow log.

Name	Type	Default value	Description
days	integer	0	Number of days to retain flow log records.
enabled	boolean	False	Flag to enable/disable retention.

TrafficAnalyticsConfigurationProperties

Parameters that define the configuration of traffic analytics.

Name	Type	Description
enabled	boolean	Flag to enable/disable traffic analytics.
trafficAnalyticsInterval	integer	The interval in minutes which would decide how frequently TA service should do flow analytics.
workspaceId	string	The resource guid of the attached workspace.
workspaceRegion	string	The location of the attached workspace.
workspaceResourceId	string	Resource Id of the attached workspace.

TrafficAnalyticsProperties