REST Resource: globalForwardingRules

Resource: ForwardingRule

Represents a Forwarding Rule resource.

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,
  "serviceLabel": string,
  "serviceName": string,
  "networkTier": enum,
  "ipVersion": enum,
  "allPorts": 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

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/projectId/regions/region/addresses/address-name
  • Partial URL or by name, as in:
  • projects/projectId/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, refer to IP address specifications.

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 deprecated. See the port field.

ports[]

string

globalOperations.list of comma-separated ports. The forwarding rule forwards packets with matching destination ports. If the forwarding rule's loadBalancingScheme is EXTERNAL, and the forwarding rule references a target pool, specifying ports is optional. You can specify an unlimited number of ports, but they must be contiguous. If you omit ports, GCP forwards traffic on any port of the forwarding rule's protocol.

If the forwarding rule's loadBalancingScheme is EXTERNAL, and the forwarding rule references a target HTTP proxy, target HTTPS proxy, target TCP proxy, target SSL proxy, or target VPN gateway, you must specify ports using the following constraints:

  • 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

If the forwarding rule's loadBalancingScheme is INTERNAL, you must specify ports in one of the following ways:

  • A list of up to five ports, which can be non-contiguous
  • Keyword ALL, which causes the forwarding rule to forward traffic on any port of the forwarding rule's protocol.

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

@pattern: \d+(?:-\d+)? For more information, refer to Port specifications.

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, 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.

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.

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.

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.

Methods

delete

Deletes the specified GlobalForwardingRule resource.

get

Returns the specified GlobalForwardingRule resource.

insert

Creates a GlobalForwardingRule resource in the specified project using the data included in the request.

list

Retrieves a list of GlobalForwardingRule resources available to the specified project.

setTarget

Changes target URL for the GlobalForwardingRule resource.
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