Method: forwardingRules.get

Returns the specified ForwardingRule resource.

HTTP request

GET https://compute.googleapis.com/compute/v1/projects/{project}/regions/{region}/forwardingRules/{resourceId}

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.

resourceId

string

Name of the ForwardingRule resource to return.

Request body

The request body must be empty.

Response body

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

Represents a Forwarding Rule resource.

Forwarding rule resources in Google Cloud can be either regional or global in scope:

A forwarding rule and its corresponding IP address represent the frontend configuration of a Google Cloud Platform load balancer. Forwarding rules can also reference target instances and Cloud VPN Classic gateways (targetVpnGateway).

For more information, read Forwarding rule concepts and Using protocol forwarding.

JSON representation
{
  "id": string,
  "creationTimestamp": string,
  "name": string,
  "description": string,
  "region": string,
  "IPAddress": string,
  "IPProtocol": enum,
  "portRange": string,
  "ports": [
    string
  ],
  "target": string,
  "selfLink": string,
  "loadBalancingScheme": enum,
  "subnetwork": string,
  "network": string,
  "backendService": string,
  "serviceDirectoryRegistrations": [
    {
      "namespace": string,
      "service": string,
      "serviceDirectoryRegion": string
    }
  ],
  "serviceLabel": string,
  "serviceName": string,
  "networkTier": enum,
  "labels": {
    string: string,
    ...
  },
  "labelFingerprint": string,
  "ipVersion": enum,
  "fingerprint": string,
  "allPorts": boolean,
  "allowGlobalAccess": boolean,
  "metadataFilters": [
    {
      "filterMatchCriteria": enum,
      "filterLabels": [
        {
          "name": string,
          "value": string
        }
      ]
    }
  ],
  "isMirroringCollector": boolean,
  "pscConnectionId": string,
  "pscConnectionStatus": enum,
  "kind": string
}
Fields
id

string (uint64 format)

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

creationTimestamp

string

[Output Only] Creation timestamp in RFC3339 text format.

name

string

Name of the resource; provided by the client when the resource is created. 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.

For Private Service Connect forwarding rules that forward traffic to Google APIs, the forwarding rule name must be a 1-20 characters string with lowercase letters and numbers and must start with a letter.

description

string

An optional description of this resource. Provide this property when you create the resource.

region

string

[Output Only] URL of the region where the regional forwarding rule resides. This field is not applicable to global forwarding rules. You must specify this field as part of the HTTP request URL. It is not settable as a field in the request body.

IPAddress

string

IP address that this forwarding rule serves. When a client sends traffic to this IP address, the forwarding rule directs the traffic to the target that you specify in the forwarding rule.

If you don't specify a reserved IP address, an ephemeral IP address is assigned. Methods for specifying an IP address:

  • IPv4 dotted decimal, as in 100.1.2.3
  • Full URL, as in https://www.googleapis.com/compute/v1/projects/project_id/regions/region/addresses/address-name
  • Partial URL or by name, as in:
    • projects/project_id/regions/region/addresses/address-name
    • regions/region/addresses/address-name
    • global/addresses/address-name
    • address-name

The loadBalancingScheme and the forwarding rule's target determine the type of IP address that you can use. For detailed information, see IP address specifications.

Must be set to 0.0.0.0 when the target is targetGrpcProxy that has validateForProxyless field set to true.

For Private Service Connect forwarding rules that forward traffic to Google APIs, IP address must be provided.

IPProtocol

enum

The IP protocol to which this rule applies.

For protocol forwarding, valid options are TCP, UDP, ESP, AH, SCTP, ICMP and L3_DEFAULT.

The valid IP protocols are different for different load balancing products as described in Load balancing features.

portRange

string

This field can be used only if:

  • Load balancing scheme is one of EXTERNAL, INTERNAL_SELF_MANAGED or INTERNAL_MANAGED
  • IPProtocol is one of TCP, UDP, or SCTP.

Packets addressed to ports in the specified range will be forwarded to target or backendService.

You can only use one of ports, portRange, or allPorts. The three are mutually exclusive.

Forwarding rules with the same [IPAddress, IPProtocol] pair must have disjoint ports.

Some types of forwarding target have constraints on the acceptable ports. For more information, see Port specifications.

@pattern: \d+(?:-\d+)?

ports[]

string

The ports field is only supported when the forwarding rule references a backendService directly. Only packets addressed to the specified list of ports are forwarded to backends.

You can only use one of ports and portRange, or allPorts. The three are mutually exclusive.

You can specify a list of up to five ports, which can be non-contiguous.

Forwarding rules with the same [IPAddress, IPProtocol] pair must have disjoint ports.

@pattern: \d+(?:-\d+)?

target

string

loadBalancingScheme

enum

Specifies the forwarding rule type.

For more information about forwarding rules, refer to Forwarding rule concepts.

subnetwork

string

This field identifies the subnetwork that the load balanced IP should belong to for this Forwarding Rule, used in internal load balancing and network load balancing with IPv6.

If the network specified is in auto subnet mode, this field is optional. However, a subnetwork must be specified if the network is in custom subnet mode or when creating external forwarding rule with IPv6.

network

string

This field is not used for external load balancing.

For Internal TCP/UDP Load Balancing, this field identifies the network that the load balanced IP should belong to for this Forwarding Rule. If this field is not specified, the default network will be used.

For Private Service Connect forwarding rules that forward traffic to Google APIs, a network must be provided.

backendService

string

Identifies the backend service to which the forwarding rule sends traffic. Required for Internal TCP/UDP Load Balancing and Network Load Balancing; must be omitted for all other load balancer types.

serviceDirectoryRegistrations[]

object

Service Directory resources to register this forwarding rule with. Currently, only supports a single Service Directory resource.

It is only supported for internal load balancing.

serviceDirectoryRegistrations[].namespace

string

Service Directory namespace to register the forwarding rule under.

serviceDirectoryRegistrations[].service

string

Service Directory service to register the forwarding rule under.

serviceDirectoryRegistrations[].serviceDirectoryRegion

string

[Optional] Service Directory region to register this global forwarding rule under. Default to "us-central1". Only used for PSC for Google APIs. All PSC for Google APIs Forwarding Rules on the same network should use the same Service Directory region.

serviceLabel

string

An optional prefix to the service name for this Forwarding Rule. If specified, the prefix is the first label of the fully qualified service name.

The label must be 1-63 characters long, and comply with RFC1035. Specifically, the label 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.

This field is only used for internal load balancing.

serviceName

string

[Output Only] The internal fully qualified service name for this Forwarding Rule.

This field is only used for internal load balancing.

networkTier

enum

This signifies the networking tier used for configuring this load balancer and can only take the following values: PREMIUM, STANDARD.

For regional ForwardingRule, the valid values are PREMIUM and STANDARD. For GlobalForwardingRule, the valid value is PREMIUM.

If this field is not specified, it is assumed to be PREMIUM. If IPAddress is specified, this value must be equal to the networkTier of the Address.

labels

map (key: string, value: string)

Labels for this resource. These can only be added or modified by the setLabels method. Each label key/value pair must comply with RFC1035. Label values may be empty.

An object containing a list of "key": value pairs. Example: { "name": "wrench", "mass": "1.3kg", "count": "3" }.

labelFingerprint

string (bytes format)

A fingerprint for the labels being applied to this resource, which is essentially a hash of the labels set used for optimistic locking. The fingerprint is initially generated by Compute Engine and changes after every request to modify or update labels. You must always provide an up-to-date fingerprint hash in order to update or change labels, otherwise the request will fail with error 412 conditionNotMet.

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

A base64-encoded string.

ipVersion

enum

The IP Version that will be used by this forwarding rule. Valid options are IPV4 or IPV6. This can only be specified for an external global forwarding rule.

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 ForwardingRule. Include the fingerprint in patch request to ensure that you do not overwrite changes that were applied from another concurrent request.

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

A base64-encoded string.

allPorts

boolean

This field is used along with the backendService field for Internal TCP/UDP Load Balancing or Network Load Balancing, or with the target field for internal and external TargetInstance.

You can only use one of ports and portRange, or allPorts. The three are mutually exclusive.

For TCP, UDP and SCTP traffic, packets addressed to any ports will be forwarded to the target or backendService.

allowGlobalAccess

boolean

This field is used along with the backendService field for internal load balancing or with the target field for internal TargetInstance. If the field is set to TRUE, clients can access ILB from all regions. Otherwise only allows access from clients in the same region as the internal loa