Method: subnetworks.list

Retrieves a list of subnetworks available to the specified project.

HTTP request

GET https://www.googleapis.com/compute/beta/projects/{project}/regions/{region}/subnetworks

The URL uses gRPC Transcoding syntax.

Path parameters

Parameters
project

string

Project ID for this request.

region

string

Name of the region scoping this request.

Query parameters

Parameters
maxResults

number (uint32 format)

The maximum number of results per page that should be returned. If the number of available results is larger than maxResults, Compute Engine returns a nextPageToken that can be used to get the next page of results in subsequent list requests. Acceptable values are 0 to 500, inclusive. (Default: 500)

pageToken

string

Specifies a page token to use. Set pageToken to the nextPageToken returned by a previous list request to get the next page of results.

filter

string

A filter expression that filters resources listed in the response. The expression must specify the field name, a comparison operator, and the value that you want to use for filtering. The value must be a string, a number, or a boolean. The comparison operator must be either =, !=, >, or <.

For example, if you are filtering Compute Engine instances, you can exclude instances named example-instance by specifying name != example-instance.

You can also filter nested fields. For example, you could specify scheduling.automaticRestart = false to include instances only if they are not scheduled for automatic restarts. You can use filtering on nested fields to filter based on resource labels.

To filter on multiple expressions, provide each separate expression within parentheses. For example, (scheduling.automaticRestart = true) (cpuPlatform = "Intel Skylake"). By default, each expression is an AND expression. However, you can include AND and OR expressions explicitly. For example, (cpuPlatform = "Intel Skylake") OR (cpuPlatform = "Intel Broadwell") AND (scheduling.automaticRestart = true).

orderBy

string

Sorts list results by a certain order. By default, results are returned in alphanumerical order based on the resource name.

You can also sort results in descending order based on the creation timestamp using orderBy="creationTimestamp desc". This sorts results based on the creationTimestamp field in reverse chronological order (newest result first). Use this to sort resources like operations so that the newest operation is returned first.

Currently, only sorting by name or creationTimestamp desc is supported.

Request body

The request body must be empty.

Response body

If successful, the response body contains data with the following structure:

Contains a list of Subnetwork resources.

JSON representation
{
  "id": string,
  "items": [
    {
      "id": string,
      "creationTimestamp": string,
      "name": string,
      "description": string,
      "network": string,
      "ipCidrRange": string,
      "gatewayAddress": string,
      "region": string,
      "selfLink": string,
      "privateIpGoogleAccess": boolean,
      "secondaryIpRanges": [
        {
          "rangeName": string,
          "ipCidrRange": string
        }
      ],
      "fingerprint": string,
      "allowSubnetCidrRoutesOverlap": boolean,
      "enableFlowLogs": boolean,
      "kind": string
    }
  ],
  "nextPageToken": string,
  "selfLink": string,
  "warning": {
    "code": enum,
    "message": string,
    "data": [
      {
        "key": string,
        "value": string
      }
    ]
  },
  "kind": string
}
Fields
id

string

[Output Only] Unique identifier for the resource; defined by the server.

items[]

object

A list of Subnetwork resources.

items[].id

string (fixed64 format)

[Output Only] The unique identifier for the resource. This identifier is defined by the server.

items[].creationTimestamp

string

[Output Only] Creation timestamp in RFC3339 text format.

items[].name

string

The name of the resource, provided by the client when initially creating the resource. The name must be 1-63 characters long, and comply with RFC1035. Specifically, the name must be 1-63 characters long and match the regular expression [a-z]([-a-z0-9]*[a-z0-9])? which means the first character must be a lowercase letter, and all following characters must be a dash, lowercase letter, or digit, except the last character, which cannot be a dash.

items[].description

string

An optional description of this resource. Provide this property when you create the resource. This field can be set only at resource creation time.

items[].network

string

The URL of the network to which this subnetwork belongs, provided by the client when initially creating the subnetwork. Only networks that are in the distributed mode can have subnetworks. This field can be set only at resource creation time.

items[].ipCidrRange

string

The range of internal addresses that are owned by this subnetwork. Provide this property when you create the subnetwork. For example, 10.0.0.0/8 or 192.168.0.0/16. Ranges must be unique and non-overlapping within a network. Only IPv4 is supported. This field can be set only at resource creation time.

items[].gatewayAddress

string

[Output Only] The gateway address for default routes to reach destination addresses outside this subnetwork.

items[].region

string

URL of the region where the Subnetwork resides. This field can be set only at resource creation time.

items[].selfLink

string

[Output Only] Server-defined URL for the resource.

items[].privateIpGoogleAccess

boolean

Whether the VMs in this subnet can access Google services without assigned external IP addresses. This field can be both set at resource creation time and updated using setPrivateIpGoogleAccess.

items[].secondaryIpRanges[]

object

An array of configurations for secondary IP ranges for VM instances contained in this subnetwork. The primary IP of such VM must belong to the primary ipCidrRange of the subnetwork. The alias IPs may belong to either primary or secondary ranges.

items[].secondaryIpRanges[].rangeName

string

The name associated with this subnetwork secondary range, used when adding an alias IP range to a VM instance. The name must be 1-63 characters long, and comply with RFC1035. The name must be unique within the subnetwork.

items[].secondaryIpRanges[].ipCidrRange

string

The range of IP addresses belonging to this subnetwork secondary range. Provide this property when you create the subnetwork. Ranges must be unique and non-overlapping with all primary and secondary IP ranges within a network. Only IPv4 is supported.

items[].fingerprint

string (bytes format)

Fingerprint of this resource. A hash of the contents stored in this object. This field is used in optimistic locking. This field will be ignored when inserting a Subnetwork. An up-to-date fingerprint must be provided in order to update the Subnetwork, otherwise the request will fail with error 412 conditionNotMet.

To see the latest fingerprint, make a get() request to retrieve a Subnetwork.

A base64-encoded string.

items[].allowSubnetCidrRoutesOverlap

boolean

Whether this subnetwork can conflict with static routes. Setting this to true allows this subnetwork's primary and secondary ranges to conflict with routes that have already been configured on the corresponding network. Static routes will take precedence over the subnetwork route if the route prefix length is at least as large as the subnetwork prefix length.

Also, packets destined to IPs within subnetwork may contain private/sensitive data and are prevented from leaving the virtual network. Setting this field to true will disable this feature.

The default value is false and applies to all existing subnetworks and automatically created subnetworks.

This field cannot be set to true at resource creation time.

items[].enableFlowLogs

boolean

Whether to enable flow logging for this subnetwork. If this field is not explicitly set, it will not appear in get listings. If not set the default behavior is to disable flow logging.

items[].kind

string

[Output Only] Type of the resource. Always compute#subnetwork for Subnetwork resources.

nextPageToken

string

[Output Only] This token allows you to get the next page of results for list requests. If the number of results is larger than maxResults, use the nextPageToken as a value for the query parameter pageToken in the next list request. Subsequent list requests will have their own nextPageToken to continue paging through the results.

warning

object

[Output Only] Informational warning message.

warning.code

enum

[Output Only] A warning code, if applicable. For example, Compute Engine returns NO_RESULTS_ON_PAGE if there are no results in the response.

warning.message

string

[Output Only] A human-readable description of the warning code.

warning.data[]

object

[Output Only] Metadata about this warning in key: value format. For example:

"data": [  {  "key": "scope",  "value": "zones/us-east1-d"  }

warning.data[].key

string

[Output Only] A key that provides more detail on the warning being returned. For example, for warnings where there are no results in a list request for a particular zone, this key might be scope and the key value might be the zone name. Other examples might be a key indicating a deprecated resource and a suggested replacement, or a warning about invalid network settings (for example, if an instance attempts to perform IP forwarding but is not enabled for IP forwarding).

warning.data[].value

string

[Output Only] A warning data value corresponding to the key.

kind

string

[Output Only] Type of resource. Always compute#subnetworkList for lists of subnetworks.

Authorization Scopes

Requires one of the following OAuth scopes:

  • https://www.googleapis.com/auth/compute
  • https://www.googleapis.com/auth/cloud-platform

For more information, see the Authentication Overview.

IAM Permissions

In addition to any permissions specified on the fields above, authorization requires one or more of the following Google IAM permissions:

  • compute.subnetworks.list
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