Method: instanceGroups.listInstances

Lists the instances in the specified instance group.

HTTP request

POST https://compute.googleapis.com/compute/beta/projects/{project}/zones/{zone}/instanceGroups/{resourceId}/listInstances

The URL uses Google API HTTP annotation syntax.

Path parameters

Parameters
project

string

Project ID for this request.

zone

string

The name of the zone where the instance group is located.

resourceId

string

The name of the instance group from which you want to generate a list of included instances.

Authorization requires the following Google IAM permission on the specified resource resource_id:

  • compute.instanceGroups.get

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

Sets a filter {expression} for filtering listed resources. Your {expression} must be in the format: field_name comparison_string literal_string.

The field_name is the name of the field you want to compare. Only atomic field types are supported (string, number, boolean). The comparison_string must be either eq (equals) or ne (not equals). The literal_string is the string value to filter to. The literal value must be valid for the type of field you are filtering by (string, number, boolean). For string fields, the literal value is interpreted as a regular expression using RE2 syntax. The literal value must match the entire field.

For example, to filter for instances that do not have a name of example-instance, you would use name ne example-instance.

You can filter on nested fields. For example, you could filter on instances that have set the scheduling.automaticRestart field to true. Use filtering on nested fields to take advantage of labels to organize and search for results based on label values.

To filter on multiple expressions, provide each separate expression within parentheses. For example, (scheduling.automaticRestart eq true) (zone eq us-central1-f). Multiple expressions are treated as AND expressions, meaning that resources must match all expressions to pass the filters.

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 contains data with the following structure:

JSON representation
{
  "instanceState": enum,
}
Fields
instanceState

enum

A filter for the state of the instances in the instance group. Valid options are ALL or RUNNING. If you do not specify this parameter the list includes all instances regardless of their state.

Response body

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

JSON representation
{
  "id": string,
  "items": [
    {
      "instance": string,
      "status": enum,
      "namedPorts": {
        "name": string,
        "port": number
      }
    }
  ],
  "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 InstanceWithNamedPorts resources.

items[].instance

string

[Output Only] The URL of the instance.

items[].status

enum

[Output Only] The status of the instance.

items[].namedPorts[]

object

[Output Only] The named ports that belong to this instance group.

items[].namedPorts[].name

string

The name for this named port. The name must be 1-63 characters long, and comply with RFC1035.

items[].namedPorts[].port

number

The port number, which can be a value between 1 and 65535.

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] The resource type, which is always compute#instanceGroupsListInstances for the list of instances in the specified instance group.

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 Auth Guide.

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