Method: forwardingRules.get

Returns the specified ForwardingRule resource.

HTTP request

GET https://www.googleapis.com/compute/beta/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:

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,
  "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
        }
      ]
    }
  ],
  "kind": string
}
Fields
id

string (fixed64 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.

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

The IP address that this forwarding rule is serving on behalf of.

Addresses are restricted based on the forwarding rule's load balancing scheme (EXTERNAL or INTERNAL) and scope (global or regional).

When the load balancing scheme is EXTERNAL, for global forwarding rules, the address must be a global IP, and for regional forwarding rules, the address must live in the same region as the forwarding rule. If this field is empty, an ephemeral IPv4 address from the same scope (global or regional) will be assigned. A regional forwarding rule supports IPv4 only. A global forwarding rule supports either IPv4 or IPv6.

When the load balancing scheme is INTERNAL_SELF_MANAGED, this must be a URL reference to an existing Address resource ( internal regional static IP address), with a purpose of GCE_END_POINT and addressType of INTERNAL.

When the load balancing scheme is INTERNAL, this can only be an RFC 1918 IP address belonging to the network/subnet configured for the forwarding rule. By default, if this field is empty, an ephemeral internal IP address will be automatically allocated from the IP range of the subnet or network configured for this forwarding rule.

An address can be specified either by a literal IP address or a URL reference to an existing Address resource. The following examples are all valid:

IPProtocol

enum

The IP protocol to which this rule applies. Valid options are TCP, UDP, ESP, AH, SCTP or ICMP.

When the load balancing scheme is INTERNAL, only TCP and UDP are valid. When the load balancing scheme is INTERNAL_SELF_MANAGED, only TCPis valid.
portRange

string

This field is used along with the target field for TargetHttpProxy, TargetHttpsProxy, TargetSslProxy, TargetTcpProxy, TargetVpnGateway, TargetPool, TargetInstance.

Applicable only when IPProtocol is TCP, UDP, or SCTP, only packets addressed to ports in the specified range will be forwarded to target. Forwarding rules with the same [IPAddress, IPProtocol] pair must have disjoint port ranges.

Some types of forwarding target have constraints on the acceptable ports:

  • TargetHttpProxy: 80, 8080
  • TargetHttpsProxy: 443
  • TargetTcpProxy: 25, 43, 110, 143, 195, 443, 465, 587, 700, 993, 995, 1688, 1883, 5222
  • TargetSslProxy: 25, 43, 110, 143, 195, 443, 465, 587, 700, 993, 995, 1688, 1883, 5222
  • TargetVpnGateway: 500, 4500

@pattern: \d+(?:-\d+)?
ports[]

string

This field is used along with the backendService field for internal load balancing.

When the load balancing scheme is INTERNAL, a list of ports can be configured, for example, ['80'], ['8000','9000'] etc. Only packets addressed to these ports will be forwarded to the backends configured with this forwarding rule.

You may specify a maximum of up to 5 ports.
target

string

The URL of the target resource to receive the matched traffic. For regional forwarding rules, this target must live in the same region as the forwarding rule. For global forwarding rules, this target must be a global load balancing resource. The forwarded traffic must be of a type appropriate to the target object. For INTERNAL_SELF_MANAGED load balancing, only HTTP and HTTPS targets are valid.

loadBalancingScheme

enum

This signifies what the ForwardingRule will be used for and can only take the following values: INTERNAL, INTERNAL_SELF_MANAGED, EXTERNAL. The value of INTERNAL means that this will be used for Internal Network Load Balancing (TCP, UDP). The value of INTERNAL_SELF_MANAGED means that this will be used for Internal Global HTTP(S) LB. The value of EXTERNAL means that this will be used for External Load Balancing (HTTP(S) LB, External TCP/UDP LB, SSL Proxy)

subnetwork

string

This field is only used for INTERNAL load balancing.

For internal load balancing, this field identifies the subnetwork that the load balanced IP should belong to for this Forwarding Rule.

If the network specified is in auto subnet mode, this field is optional. However, if the network is in custom subnet mode, a subnetwork must be specified.
network

string

This field is not used for external load balancing.

For INTERNAL and INTERNAL_SELF_MANAGED 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.
backendService

string

This field is only used for INTERNAL load balancing.

For internal load balancing, this field identifies the BackendService resource to receive the matched traffic.
serviceLabel

string

An optional prefix to the service name for this Forwarding Rule. If specified, will be 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 to apply to this resource. These can be later 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 load balancing or with the target field for internal TargetInstance. This field cannot be used with port or portRange fields.

When the load balancing scheme is INTERNAL and protocol is TCP/UDP, specify this field to allow packets addressed to any ports will be forwarded to the backends configured with this forwarding rule.
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 load balancer.

metadataFilters[]

object

Opaque filter criteria used by Loadbalancer to restrict routing configuration to a limited set xDS compliant clients. In their xDS requests to Loadbalancer, xDS clients present node metadata. If a match takes place, the relevant routing configuration is made available to those proxies.

For each metadataFilter in this list, if its filterMatchCriteria is set to MATCH_ANY, at least one of the filterLabels must match the corresponding label provided in the metadata. If its filterMatchCriteria is set to MATCH_ALL, then all of its filterLabels must match with corresponding labels in the provided metadata.

metadataFilters specified here can be overridden by those specified in the UrlMap that this ForwardingRule references.

metadataFilters only applies to Loadbalancers that have their loadBalancingScheme set to INTERNAL_SELF_MANAGED.
metadataFilters[].filterMatchCriteria

enum

Specifies how individual filterLabel matches within the list of filterLabels contribute towards the overall metadataFilter match.

Supported values are:

  • MATCH_ANY: At least one of the filterLabels must have a matching label in the provided metadata.
  • MATCH_ALL: All filterLabels must have matching labels in the provided metadata.
metadataFilters[].filterLabels[]

object

The list of label value pairs that must match labels in the provided metadata based on filterMatchCriteria

This list must not be empty and can have at the most 64 entries.
metadataFilters[].filterLabels[].name

string

Name of metadata label.

The name can have a maximum length of 1024 characters and must be at least 1 character long.
metadataFilters[].filterLabels[].value

string

The value of the label must match the specified value.

value can have a maximum length of 1024 characters.
kind

string

[Output Only] Type of the resource. Always compute#forwardingRule for Forwarding Rule resources.

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.forwardingRules.get

To find predefined roles that contain those permissions, see Compute Engine IAM Roles.

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