Compute V1 Client - Class RegionInstanceGroupManagersClient (1.5.0)

Reference documentation and code samples for the Compute V1 Client class RegionInstanceGroupManagersClient.

Service Description: The RegionInstanceGroupManagers API.

This class provides the ability to make remote calls to the backing service through method calls that map to API methods. Sample code to get started:

$regionInstanceGroupManagersClient = new RegionInstanceGroupManagersClient();
try {
    $instanceGroupManager = 'instance_group_manager';
    $project = 'project';
    $region = 'region';
    $regionInstanceGroupManagersAbandonInstancesRequestResource = new RegionInstanceGroupManagersAbandonInstancesRequest();
    $operationResponse = $regionInstanceGroupManagersClient->abandonInstances($instanceGroupManager, $project, $region, $regionInstanceGroupManagersAbandonInstancesRequestResource);
    $operationResponse->pollUntilComplete();
    if ($operationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $operationResponse->getError();
        // handleError($error)
    }
    // Alternatively:
    // start the operation, keep the operation name, and resume later
    $operationResponse = $regionInstanceGroupManagersClient->abandonInstances($instanceGroupManager, $project, $region, $regionInstanceGroupManagersAbandonInstancesRequestResource);
    $operationName = $operationResponse->getName();
    // ... do other work
    $newOperationResponse = $regionInstanceGroupManagersClient->resumeOperation($operationName, 'abandonInstances');
    while (!$newOperationResponse->isDone()) {
        // ... do other work
        $newOperationResponse->reload();
    }
    if ($newOperationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $newOperationResponse->getError();
        // handleError($error)
    }
} finally {
    $regionInstanceGroupManagersClient->close();
}

Methods

getOperationsClient

Return an RegionOperationsClient object with the same endpoint as $this.

Returns
Type	Description
`Google\Cloud\Compute\V1\RegionOperationsClient`

resumeOperation

Resume an existing long running operation that was previously started by a long running API method. If $methodName is not provided, or does not match a long running API method, then the operation can still be resumed, but the OperationResponse object will not deserialize the final response.

Parameters
Name	Description
`operationName`	`string` The name of the long running operation
`methodName`	`string` The name of the method used to start the operation

Returns
Type	Description
`Google\ApiCore\OperationResponse`

__construct

Constructor.

Parameters
Name	Description
`options`	`array` Optional. Options for configuring the service API wrapper.
`↳ apiEndpoint`	`string` The address of the API remote host. May optionally include the port, formatted as "
`↳ credentials`	`string\|array\|FetchAuthTokenInterface\|CredentialsWrapper` The credentials to be used by the client to authorize API calls. This option accepts either a path to a credentials file, or a decoded credentials file as a PHP array. Advanced usage: In addition, this option can also accept a pre-constructed {@see} object or {@see} object. Note that when one of these objects are provided, any settings in $credentialsConfig will be ignored.
`↳ credentialsConfig`	`array` Options used to configure credentials, including auth token caching, for the client. For a full list of supporting configuration options, see {@see} .
`↳ disableRetries`	`bool` Determines whether or not retries defined by the client configuration should be disabled. Defaults to `false`.
`↳ clientConfig`	`string\|array` Client method configuration, including retry settings. This option can be either a path to a JSON file, or a PHP array containing the decoded JSON data. By default this settings points to the default client config file, which is provided in the resources folder.
`↳ transport`	`string\|TransportInterface` The transport used for executing network requests. At the moment, supports only `rest`. Advanced usage: Additionally, it is possible to pass in an already instantiated {@see} object. Note that when this object is provided, any settings in $transportConfig, and any $apiEndpoint setting, will be ignored.
`↳ transportConfig`	`array` Configuration options that will be used to construct the transport. Options for each supported transport type should be passed in a key for that transport. For example: $transportConfig = [ 'rest' => [...], ]; See the {@see} method for the supported options.
`↳ clientCertSource`	`callable` A callable which returns the client cert as a string. This can be used to provide a certificate and private key to the transport layer for mTLS.

abandonInstances

Flags the specified instances to be immediately removed from the managed instance group. Abandoning an instance does not delete the instance, but it does remove the instance from any target pools that are applied by the managed instance group. This method reduces the targetSize of the managed instance group by the number of instances that you abandon. This operation is marked as DONE when the action is scheduled even if the instances have not yet been removed from the group. You must separately verify the status of the abandoning action with the listmanagedinstances method. If the group is part of a backend service that has enabled connection draining, it can take up to 60 seconds after the connection draining duration has elapsed before the VM instance is removed or deleted. You can specify a maximum of 1000 instances with this method per request.

Sample code:

$regionInstanceGroupManagersClient = new RegionInstanceGroupManagersClient();
try {
    $instanceGroupManager = 'instance_group_manager';
    $project = 'project';
    $region = 'region';
    $regionInstanceGroupManagersAbandonInstancesRequestResource = new RegionInstanceGroupManagersAbandonInstancesRequest();
    $operationResponse = $regionInstanceGroupManagersClient->abandonInstances($instanceGroupManager, $project, $region, $regionInstanceGroupManagersAbandonInstancesRequestResource);
    $operationResponse->pollUntilComplete();
    if ($operationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $operationResponse->getError();
        // handleError($error)
    }
    // Alternatively:
    // start the operation, keep the operation name, and resume later
    $operationResponse = $regionInstanceGroupManagersClient->abandonInstances($instanceGroupManager, $project, $region, $regionInstanceGroupManagersAbandonInstancesRequestResource);
    $operationName = $operationResponse->getName();
    // ... do other work
    $newOperationResponse = $regionInstanceGroupManagersClient->resumeOperation($operationName, 'abandonInstances');
    while (!$newOperationResponse->isDone()) {
        // ... do other work
        $newOperationResponse->reload();
    }
    if ($newOperationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $newOperationResponse->getError();
        // handleError($error)
    }
} finally {
    $regionInstanceGroupManagersClient->close();
}

Parameters
Name	Description
`instanceGroupManager`	`string` Name of the managed instance group.
`project`	`string` Project ID for this request.
`region`	`string` Name of the region scoping this request.
`regionInstanceGroupManagersAbandonInstancesRequestResource`	`Google\Cloud\Compute\V1\RegionInstanceGroupManagersAbandonInstancesRequest` The body resource for this request
`optionalArgs`	`array` Optional.
`↳ requestId`	`string` An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. This prevents clients from accidentally creating duplicate commitments. The request ID must be a valid UUID with the exception that zero UUID is not supported ( 00000000-0000-0000-0000-000000000000).
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a {@see} object, or an associative array of retry settings parameters. See the documentation on {@see} for example usage.

Returns
Type	Description
`Google\ApiCore\OperationResponse`

applyUpdatesToInstances

Apply updates to selected instances the managed instance group.

Sample code:

$regionInstanceGroupManagersClient = new RegionInstanceGroupManagersClient();
try {
    $instanceGroupManager = 'instance_group_manager';
    $project = 'project';
    $region = 'region';
    $regionInstanceGroupManagersApplyUpdatesRequestResource = new RegionInstanceGroupManagersApplyUpdatesRequest();
    $operationResponse = $regionInstanceGroupManagersClient->applyUpdatesToInstances($instanceGroupManager, $project, $region, $regionInstanceGroupManagersApplyUpdatesRequestResource);
    $operationResponse->pollUntilComplete();
    if ($operationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $operationResponse->getError();
        // handleError($error)
    }
    // Alternatively:
    // start the operation, keep the operation name, and resume later
    $operationResponse = $regionInstanceGroupManagersClient->applyUpdatesToInstances($instanceGroupManager, $project, $region, $regionInstanceGroupManagersApplyUpdatesRequestResource);
    $operationName = $operationResponse->getName();
    // ... do other work
    $newOperationResponse = $regionInstanceGroupManagersClient->resumeOperation($operationName, 'applyUpdatesToInstances');
    while (!$newOperationResponse->isDone()) {
        // ... do other work
        $newOperationResponse->reload();
    }
    if ($newOperationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $newOperationResponse->getError();
        // handleError($error)
    }
} finally {
    $regionInstanceGroupManagersClient->close();
}

Parameters
Name	Description
`instanceGroupManager`	`string` The name of the managed instance group, should conform to RFC1035.
`project`	`string` Project ID for this request.
`region`	`string` Name of the region scoping this request, should conform to RFC1035.
`regionInstanceGroupManagersApplyUpdatesRequestResource`	`Google\Cloud\Compute\V1\RegionInstanceGroupManagersApplyUpdatesRequest` The body resource for this request
`optionalArgs`	`array` Optional.
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a {@see} object, or an associative array of retry settings parameters. See the documentation on {@see} for example usage.

Returns
Type	Description
`Google\ApiCore\OperationResponse`

createInstances

Creates instances with per-instance configurations in this regional managed instance group. Instances are created using the current instance template. The create instances operation is marked DONE if the createInstances request is successful. The underlying actions take additional time. You must separately verify the status of the creating or actions with the listmanagedinstances method.

Sample code:

$regionInstanceGroupManagersClient = new RegionInstanceGroupManagersClient();
try {
    $instanceGroupManager = 'instance_group_manager';
    $project = 'project';
    $region = 'region';
    $regionInstanceGroupManagersCreateInstancesRequestResource = new RegionInstanceGroupManagersCreateInstancesRequest();
    $operationResponse = $regionInstanceGroupManagersClient->createInstances($instanceGroupManager, $project, $region, $regionInstanceGroupManagersCreateInstancesRequestResource);
    $operationResponse->pollUntilComplete();
    if ($operationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $operationResponse->getError();
        // handleError($error)
    }
    // Alternatively:
    // start the operation, keep the operation name, and resume later
    $operationResponse = $regionInstanceGroupManagersClient->createInstances($instanceGroupManager, $project, $region, $regionInstanceGroupManagersCreateInstancesRequestResource);
    $operationName = $operationResponse->getName();
    // ... do other work
    $newOperationResponse = $regionInstanceGroupManagersClient->resumeOperation($operationName, 'createInstances');
    while (!$newOperationResponse->isDone()) {
        // ... do other work
        $newOperationResponse->reload();
    }
    if ($newOperationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $newOperationResponse->getError();
        // handleError($error)
    }
} finally {
    $regionInstanceGroupManagersClient->close();
}

Parameters
Name	Description
`instanceGroupManager`	`string` The name of the managed instance group. It should conform to RFC1035.
`project`	`string` Project ID for this request.
`region`	`string` The name of the region where the managed instance group is located. It should conform to RFC1035.
`regionInstanceGroupManagersCreateInstancesRequestResource`	`Google\Cloud\Compute\V1\RegionInstanceGroupManagersCreateInstancesRequest` The body resource for this request
`optionalArgs`	`array` Optional.
`↳ requestId`	`string` An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. The request ID must be a valid UUID with the exception that zero UUID is not supported ( 00000000-0000-0000-0000-000000000000).
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a {@see} object, or an associative array of retry settings parameters. See the documentation on {@see} for example usage.

Returns
Type	Description
`Google\ApiCore\OperationResponse`

delete

Deletes the specified managed instance group and all of the instances in that group.

Sample code:

$regionInstanceGroupManagersClient = new RegionInstanceGroupManagersClient();
try {
    $instanceGroupManager = 'instance_group_manager';
    $project = 'project';
    $region = 'region';
    $operationResponse = $regionInstanceGroupManagersClient->delete($instanceGroupManager, $project, $region);
    $operationResponse->pollUntilComplete();
    if ($operationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $operationResponse->getError();
        // handleError($error)
    }
    // Alternatively:
    // start the operation, keep the operation name, and resume later
    $operationResponse = $regionInstanceGroupManagersClient->delete($instanceGroupManager, $project, $region);
    $operationName = $operationResponse->getName();
    // ... do other work
    $newOperationResponse = $regionInstanceGroupManagersClient->resumeOperation($operationName, 'delete');
    while (!$newOperationResponse->isDone()) {
        // ... do other work
        $newOperationResponse->reload();
    }
    if ($newOperationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $newOperationResponse->getError();
        // handleError($error)
    }
} finally {
    $regionInstanceGroupManagersClient->close();
}

Parameters
Name	Description
`instanceGroupManager`	`string` Name of the managed instance group to delete.
`project`	`string` Project ID for this request.
`region`	`string` Name of the region scoping this request.
`optionalArgs`	`array` Optional.
`↳ requestId`	`string` An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. This prevents clients from accidentally creating duplicate commitments. The request ID must be a valid UUID with the exception that zero UUID is not supported ( 00000000-0000-0000-0000-000000000000).
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a {@see} object, or an associative array of retry settings parameters. See the documentation on {@see} for example usage.

Returns
Type	Description
`Google\ApiCore\OperationResponse`

deleteInstances

Flags the specified instances in the managed instance group to be immediately deleted. The instances are also removed from any target pools of which they were a member. This method reduces the targetSize of the managed instance group by the number of instances that you delete. The deleteInstances operation is marked DONE if the deleteInstances request is successful. The underlying actions take additional time. You must separately verify the status of the deleting action with the listmanagedinstances method. If the group is part of a backend service that has enabled connection draining, it can take up to 60 seconds after the connection draining duration has elapsed before the VM instance is removed or deleted. You can specify a maximum of 1000 instances with this method per request.

Sample code:

$regionInstanceGroupManagersClient = new RegionInstanceGroupManagersClient();
try {
    $instanceGroupManager = 'instance_group_manager';
    $project = 'project';
    $region = 'region';
    $regionInstanceGroupManagersDeleteInstancesRequestResource = new RegionInstanceGroupManagersDeleteInstancesRequest();
    $operationResponse = $regionInstanceGroupManagersClient->deleteInstances($instanceGroupManager, $project, $region, $regionInstanceGroupManagersDeleteInstancesRequestResource);
    $operationResponse->pollUntilComplete();
    if ($operationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $operationResponse->getError();
        // handleError($error)
    }
    // Alternatively:
    // start the operation, keep the operation name, and resume later
    $operationResponse = $regionInstanceGroupManagersClient->deleteInstances($instanceGroupManager, $project, $region, $regionInstanceGroupManagersDeleteInstancesRequestResource);
    $operationName = $operationResponse->getName();
    // ... do other work
    $newOperationResponse = $regionInstanceGroupManagersClient->resumeOperation($operationName, 'deleteInstances');
    while (!$newOperationResponse->isDone()) {
        // ... do other work
        $newOperationResponse->reload();
    }
    if ($newOperationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $newOperationResponse->getError();
        // handleError($error)
    }
} finally {
    $regionInstanceGroupManagersClient->close();
}

Parameters
Name	Description
`instanceGroupManager`	`string` Name of the managed instance group.
`project`	`string` Project ID for this request.
`region`	`string` Name of the region scoping this request.
`regionInstanceGroupManagersDeleteInstancesRequestResource`	`Google\Cloud\Compute\V1\RegionInstanceGroupManagersDeleteInstancesRequest` The body resource for this request
`optionalArgs`	`array` Optional.
`↳ requestId`	`string` An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. This prevents clients from accidentally creating duplicate commitments. The request ID must be a valid UUID with the exception that zero UUID is not supported ( 00000000-0000-0000-0000-000000000000).
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a {@see} object, or an associative array of retry settings parameters. See the documentation on {@see} for example usage.

Returns
Type	Description
`Google\ApiCore\OperationResponse`

deletePerInstanceConfigs

Deletes selected per-instance configurations for the managed instance group.

Sample code:

$regionInstanceGroupManagersClient = new RegionInstanceGroupManagersClient();
try {
    $instanceGroupManager = 'instance_group_manager';
    $project = 'project';
    $region = 'region';
    $regionInstanceGroupManagerDeleteInstanceConfigReqResource = new RegionInstanceGroupManagerDeleteInstanceConfigReq();
    $operationResponse = $regionInstanceGroupManagersClient->deletePerInstanceConfigs($instanceGroupManager, $project, $region, $regionInstanceGroupManagerDeleteInstanceConfigReqResource);
    $operationResponse->pollUntilComplete();
    if ($operationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $operationResponse->getError();
        // handleError($error)
    }
    // Alternatively:
    // start the operation, keep the operation name, and resume later
    $operationResponse = $regionInstanceGroupManagersClient->deletePerInstanceConfigs($instanceGroupManager, $project, $region, $regionInstanceGroupManagerDeleteInstanceConfigReqResource);
    $operationName = $operationResponse->getName();
    // ... do other work
    $newOperationResponse = $regionInstanceGroupManagersClient->resumeOperation($operationName, 'deletePerInstanceConfigs');
    while (!$newOperationResponse->isDone()) {
        // ... do other work
        $newOperationResponse->reload();
    }
    if ($newOperationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $newOperationResponse->getError();
        // handleError($error)
    }
} finally {
    $regionInstanceGroupManagersClient->close();
}

Parameters
Name	Description
`instanceGroupManager`	`string` The name of the managed instance group. It should conform to RFC1035.
`project`	`string` Project ID for this request.
`region`	`string` Name of the region scoping this request, should conform to RFC1035.
`regionInstanceGroupManagerDeleteInstanceConfigReqResource`	`Google\Cloud\Compute\V1\RegionInstanceGroupManagerDeleteInstanceConfigReq` The body resource for this request
`optionalArgs`	`array` Optional.
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a {@see} object, or an associative array of retry settings parameters. See the documentation on {@see} for example usage.

Returns
Type	Description
`Google\ApiCore\OperationResponse`

get

Returns all of the details about the specified managed instance group.

Sample code:

$regionInstanceGroupManagersClient = new RegionInstanceGroupManagersClient();
try {
    $instanceGroupManager = 'instance_group_manager';
    $project = 'project';
    $region = 'region';
    $response = $regionInstanceGroupManagersClient->get($instanceGroupManager, $project, $region);
} finally {
    $regionInstanceGroupManagersClient->close();
}

Parameters
Name	Description
`instanceGroupManager`	`string` Name of the managed instance group to return.
`project`	`string` Project ID for this request.
`region`	`string` Name of the region scoping this request.
`optionalArgs`	`array` Optional.
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a {@see} object, or an associative array of retry settings parameters. See the documentation on {@see} for example usage.

Returns
Type	Description
`Google\Cloud\Compute\V1\InstanceGroupManager`

insert

Creates a managed instance group using the information that you specify in the request. After the group is created, instances in the group are created using the specified instance template. This operation is marked as DONE when the group is created even if the instances in the group have not yet been created. You must separately verify the status of the individual instances with the listmanagedinstances method. A regional managed instance group can contain up to 2000 instances.

Sample code:

$regionInstanceGroupManagersClient = new RegionInstanceGroupManagersClient();
try {
    $instanceGroupManagerResource = new InstanceGroupManager();
    $project = 'project';
    $region = 'region';
    $operationResponse = $regionInstanceGroupManagersClient->insert($instanceGroupManagerResource, $project, $region);
    $operationResponse->pollUntilComplete();
    if ($operationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $operationResponse->getError();
        // handleError($error)
    }
    // Alternatively:
    // start the operation, keep the operation name, and resume later
    $operationResponse = $regionInstanceGroupManagersClient->insert($instanceGroupManagerResource, $project, $region);
    $operationName = $operationResponse->getName();
    // ... do other work
    $newOperationResponse = $regionInstanceGroupManagersClient->resumeOperation($operationName, 'insert');
    while (!$newOperationResponse->isDone()) {
        // ... do other work
        $newOperationResponse->reload();
    }
    if ($newOperationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $newOperationResponse->getError();
        // handleError($error)
    }
} finally {
    $regionInstanceGroupManagersClient->close();
}

Parameters
Name	Description
`instanceGroupManagerResource`	`Google\Cloud\Compute\V1\InstanceGroupManager` The body resource for this request
`project`	`string` Project ID for this request.
`region`	`string` Name of the region scoping this request.
`optionalArgs`	`array` Optional.
`↳ requestId`	`string` An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. This prevents clients from accidentally creating duplicate commitments. The request ID must be a valid UUID with the exception that zero UUID is not supported ( 00000000-0000-0000-0000-000000000000).
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a {@see} object, or an associative array of retry settings parameters. See the documentation on {@see} for example usage.

Returns
Type	Description
`Google\ApiCore\OperationResponse`

list

Retrieves the list of managed instance groups that are contained within the specified region.

Sample code:

$regionInstanceGroupManagersClient = new RegionInstanceGroupManagersClient();
try {
    $project = 'project';
    $region = 'region';
    // Iterate over pages of elements
    $pagedResponse = $regionInstanceGroupManagersClient->list($project, $region);
    foreach ($pagedResponse->iteratePages() as $page) {
        foreach ($page as $element) {
            // doSomethingWith($element);
        }
    }
    // Alternatively:
    // Iterate through all elements
    $pagedResponse = $regionInstanceGroupManagersClient->list($project, $region);
    foreach ($pagedResponse->iterateAllElements() as $element) {
        // doSomethingWith($element);
    }
} finally {
    $regionInstanceGroupManagersClient->close();
}

Parameters
Name	Description
`project`	`string` Project ID for this request.
`region`	`string` Name of the region scoping this request.
`optionalArgs`	`array` Optional.
`↳ filter`	`string` A filter expression that filters resources listed in the response. Most Compute resources support two types of filter expressions: expressions that support regular expressions and expressions that follow API improvement proposal AIP-160. If you want to use AIP-160, your expression must specify the field name, an operator, and the value that you want to use for filtering. The value must be a string, a number, or a boolean. The 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`. The `:` operator can be used with string fields to match substrings. For non-string fields it is equivalent to the `=` operator. The `:` comparison can be used to test whether a key has been defined. For example, to find all objects with `owner` label use: `labels.owner:` 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)` If you want to use a regular expression, use the `eq` (equal) or `ne` (not equal) operator against a single un-parenthesized expression with or without quotes or against multiple parenthesized expressions. Examples: `fieldname eq unquoted literal` `fieldname eq 'single quoted literal'` `fieldname eq "double quoted literal"` `(fieldname1 eq literal) (fieldname2 ne "literal")` The literal value is interpreted as a regular expression using Google RE2 library syntax. The literal value must match the entire field. For example, to filter for instances that do not end with name "instance", you would use `name ne .*instance`.
`↳ maxResults`	`int` 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`)
`↳ 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.
`↳ pageToken`	`string` A page token is used to specify a page of values to be returned. If no page token is specified (the default), the first page of values will be returned. Any page token used here must have been generated by a previous call to the API.
`↳ returnPartialSuccess`	`bool` Opt-in for partial success behavior which provides partial results in case of failure. The default value is false.
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a {@see} object, or an associative array of retry settings parameters. See the documentation on {@see} for example usage.

Returns
Type	Description
`Google\ApiCore\PagedListResponse`

listErrors

Lists all errors thrown by actions on instances for a given regional managed instance group. The filter and orderBy query parameters are not supported.

Sample code:

$regionInstanceGroupManagersClient = new RegionInstanceGroupManagersClient();
try {
    $instanceGroupManager = 'instance_group_manager';
    $project = 'project';
    $region = 'region';
    // Iterate over pages of elements
    $pagedResponse = $regionInstanceGroupManagersClient->listErrors($instanceGroupManager, $project, $region);
    foreach ($pagedResponse->iteratePages() as $page) {
        foreach ($page as $element) {
            // doSomethingWith($element);
        }
    }
    // Alternatively:
    // Iterate through all elements
    $pagedResponse = $regionInstanceGroupManagersClient->listErrors($instanceGroupManager, $project, $region);
    foreach ($pagedResponse->iterateAllElements() as $element) {
        // doSomethingWith($element);
    }
} finally {
    $regionInstanceGroupManagersClient->close();
}

Parameters
Name	Description
`instanceGroupManager`	`string` The name of the managed instance group. It must be a string that meets the requirements in RFC1035, or an unsigned long integer: must match regexp pattern: (?:a-z?)\|1-9{0,19}.
`project`	`string` Project ID for this request.
`region`	`string` Name of the region scoping this request. This should conform to RFC1035.
`optionalArgs`	`array` Optional.
`↳ filter`	`string` A filter expression that filters resources listed in the response. Most Compute resources support two types of filter expressions: expressions that support regular expressions and expressions that follow API improvement proposal AIP-160. If you want to use AIP-160, your expression must specify the field name, an operator, and the value that you want to use for filtering. The value must be a string, a number, or a boolean. The 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`. The `:` operator can be used with string fields to match substrings. For non-string fields it is equivalent to the `=` operator. The `:` comparison can be used to test whether a key has been defined. For example, to find all objects with `owner` label use: `labels.owner:` 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)` If you want to use a regular expression, use the `eq` (equal) or `ne` (not equal) operator against a single un-parenthesized expression with or without quotes or against multiple parenthesized expressions. Examples: `fieldname eq unquoted literal` `fieldname eq 'single quoted literal'` `fieldname eq "double quoted literal"` `(fieldname1 eq literal) (fieldname2 ne "literal")` The literal value is interpreted as a regular expression using Google RE2 library syntax. The literal value must match the entire field. For example, to filter for instances that do not end with name "instance", you would use `name ne .*instance`.
`↳ maxResults`	`int` 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`)
`↳ 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.
`↳ pageToken`	`string` A page token is used to specify a page of values to be returned. If no page token is specified (the default), the first page of values will be returned. Any page token used here must have been generated by a previous call to the API.
`↳ returnPartialSuccess`	`bool` Opt-in for partial success behavior which provides partial results in case of failure. The default value is false.
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a {@see} object, or an associative array of retry settings parameters. See the documentation on {@see} for example usage.

Returns
Type	Description
`Google\ApiCore\PagedListResponse`

listManagedInstances

Lists the instances in the managed instance group and instances that are scheduled to be created. The list includes any current actions that the group has scheduled for its instances. The orderBy query parameter is not supported. The pageToken query parameter is supported only in the alpha and beta API and only if the group's listManagedInstancesResults field is set to PAGINATED.

Sample code:

$regionInstanceGroupManagersClient = new RegionInstanceGroupManagersClient();
try {
    $instanceGroupManager = 'instance_group_manager';
    $project = 'project';
    $region = 'region';
    // Iterate over pages of elements
    $pagedResponse = $regionInstanceGroupManagersClient->listManagedInstances($instanceGroupManager, $project, $region);
    foreach ($pagedResponse->iteratePages() as $page) {
        foreach ($page as $element) {
            // doSomethingWith($element);
        }
    }
    // Alternatively:
    // Iterate through all elements
    $pagedResponse = $regionInstanceGroupManagersClient->listManagedInstances($instanceGroupManager, $project, $region);
    foreach ($pagedResponse->iterateAllElements() as $element) {
        // doSomethingWith($element);
    }
} finally {
    $regionInstanceGroupManagersClient->close();
}

Parameters
Name	Description
`instanceGroupManager`	`string` The name of the managed instance group.
`project`	`string` Project ID for this request.
`region`	`string` Name of the region scoping this request.
`optionalArgs`	`array` Optional.
`↳ filter`	`string` A filter expression that filters resources listed in the response. Most Compute resources support two types of filter expressions: expressions that support regular expressions and expressions that follow API improvement proposal AIP-160. If you want to use AIP-160, your expression must specify the field name, an operator, and the value that you want to use for filtering. The value must be a string, a number, or a boolean. The 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`. The `:` operator can be used with string fields to match substrings. For non-string fields it is equivalent to the `=` operator. The `:` comparison can be used to test whether a key has been defined. For example, to find all objects with `owner` label use: `labels.owner:` 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)` If you want to use a regular expression, use the `eq` (equal) or `ne` (not equal) operator against a single un-parenthesized expression with or without quotes or against multiple parenthesized expressions. Examples: `fieldname eq unquoted literal` `fieldname eq 'single quoted literal'` `fieldname eq "double quoted literal"` `(fieldname1 eq literal) (fieldname2 ne "literal")` The literal value is interpreted as a regular expression using Google RE2 library syntax. The literal value must match the entire field. For example, to filter for instances that do not end with name "instance", you would use `name ne .*instance`.
`↳ maxResults`	`int` 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`)
`↳ 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.
`↳ pageToken`	`string` A page token is used to specify a page of values to be returned. If no page token is specified (the default), the first page of values will be returned. Any page token used here must have been generated by a previous call to the API.
`↳ returnPartialSuccess`	`bool` Opt-in for partial success behavior which provides partial results in case of failure. The default value is false.
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a {@see} object, or an associative array of retry settings parameters. See the documentation on {@see} for example usage.

Returns
Type	Description
`Google\ApiCore\PagedListResponse`

listPerInstanceConfigs

Lists all of the per-instance configurations defined for the managed instance group. The orderBy query parameter is not supported.

Sample code:

$regionInstanceGroupManagersClient = new RegionInstanceGroupManagersClient();
try {
    $instanceGroupManager = 'instance_group_manager';
    $project = 'project';
    $region = 'region';
    // Iterate over pages of elements
    $pagedResponse = $regionInstanceGroupManagersClient->listPerInstanceConfigs($instanceGroupManager, $project, $region);
    foreach ($pagedResponse->iteratePages() as $page) {
        foreach ($page as $element) {
            // doSomethingWith($element);
        }
    }
    // Alternatively:
    // Iterate through all elements
    $pagedResponse = $regionInstanceGroupManagersClient->listPerInstanceConfigs($instanceGroupManager, $project, $region);
    foreach ($pagedResponse->iterateAllElements() as $element) {
        // doSomethingWith($element);
    }
} finally {
    $regionInstanceGroupManagersClient->close();
}

Parameters
Name	Description
`instanceGroupManager`	`string` The name of the managed instance group. It should conform to RFC1035.
`project`	`string` Project ID for this request.
`region`	`string` Name of the region scoping this request, should conform to RFC1035.
`optionalArgs`	`array` Optional.
`↳ filter`	`string` A filter expression that filters resources listed in the response. Most Compute resources support two types of filter expressions: expressions that support regular expressions and expressions that follow API improvement proposal AIP-160. If you want to use AIP-160, your expression must specify the field name, an operator, and the value that you want to use for filtering. The value must be a string, a number, or a boolean. The 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`. The `:` operator can be used with string fields to match substrings. For non-string fields it is equivalent to the `=` operator. The `:` comparison can be used to test whether a key has been defined. For example, to find all objects with `owner` label use: `labels.owner:` 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)` If you want to use a regular expression, use the `eq` (equal) or `ne` (not equal) operator against a single un-parenthesized expression with or without quotes or against multiple parenthesized expressions. Examples: `fieldname eq unquoted literal` `fieldname eq 'single quoted literal'` `fieldname eq "double quoted literal"` `(fieldname1 eq literal) (fieldname2 ne "literal")` The literal value is interpreted as a regular expression using Google RE2 library syntax. The literal value must match the entire field. For example, to filter for instances that do not end with name "instance", you would use `name ne .*instance`.
`↳ maxResults`	`int` 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`)
`↳ 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.
`↳ pageToken`	`string` A page token is used to specify a page of values to be returned. If no page token is specified (the default), the first page of values will be returned. Any page token used here must have been generated by a previous call to the API.
`↳ returnPartialSuccess`	`bool` Opt-in for partial success behavior which provides partial results in case of failure. The default value is false.
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a {@see} object, or an associative array of retry settings parameters. See the documentation on {@see} for example usage.

Returns
Type	Description
`Google\ApiCore\PagedListResponse`

patch

Updates a managed instance group using the information that you specify in the request. This operation is marked as DONE when the group is patched even if the instances in the group are still in the process of being patched. You must separately verify the status of the individual instances with the listmanagedinstances method. This method supports PATCH semantics and uses the JSON merge patch format and processing rules. If you update your group to specify a new template or instance configuration, it's possible that your intended specification for each VM in the group is different from the current state of that VM. To learn how to apply an updated configuration to the VMs in a MIG, see Updating instances in a MIG.

Sample code:

$regionInstanceGroupManagersClient = new RegionInstanceGroupManagersClient();
try {
    $instanceGroupManager = 'instance_group_manager';
    $instanceGroupManagerResource = new InstanceGroupManager();
    $project = 'project';
    $region = 'region';
    $operationResponse = $regionInstanceGroupManagersClient->patch($instanceGroupManager, $instanceGroupManagerResource, $project, $region);
    $operationResponse->pollUntilComplete();
    if ($operationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $operationResponse->getError();
        // handleError($error)
    }
    // Alternatively:
    // start the operation, keep the operation name, and resume later
    $operationResponse = $regionInstanceGroupManagersClient->patch($instanceGroupManager, $instanceGroupManagerResource, $project, $region);
    $operationName = $operationResponse->getName();
    // ... do other work
    $newOperationResponse = $regionInstanceGroupManagersClient->resumeOperation($operationName, 'patch');
    while (!$newOperationResponse->isDone()) {
        // ... do other work
        $newOperationResponse->reload();
    }
    if ($newOperationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $newOperationResponse->getError();
        // handleError($error)
    }
} finally {
    $regionInstanceGroupManagersClient->close();
}

Parameters
Name	Description
`instanceGroupManager`	`string` The name of the instance group manager.
`instanceGroupManagerResource`	`Google\Cloud\Compute\V1\InstanceGroupManager` The body resource for this request
`project`	`string` Project ID for this request.
`region`	`string` Name of the region scoping this request.
`optionalArgs`	`array` Optional.
`↳ requestId`	`string` An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. This prevents clients from accidentally creating duplicate commitments. The request ID must be a valid UUID with the exception that zero UUID is not supported ( 00000000-0000-0000-0000-000000000000).
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a {@see} object, or an associative array of retry settings parameters. See the documentation on {@see} for example usage.

Returns
Type	Description
`Google\ApiCore\OperationResponse`

patchPerInstanceConfigs

Inserts or patches per-instance configurations for the managed instance group. perInstanceConfig.name serves as a key used to distinguish whether to perform insert or patch.

Sample code:

$regionInstanceGroupManagersClient = new RegionInstanceGroupManagersClient();
try {
    $instanceGroupManager = 'instance_group_manager';
    $project = 'project';
    $region = 'region';
    $regionInstanceGroupManagerPatchInstanceConfigReqResource = new RegionInstanceGroupManagerPatchInstanceConfigReq();
    $operationResponse = $regionInstanceGroupManagersClient->patchPerInstanceConfigs($instanceGroupManager, $project, $region, $regionInstanceGroupManagerPatchInstanceConfigReqResource);
    $operationResponse->pollUntilComplete();
    if ($operationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $operationResponse->getError();
        // handleError($error)
    }
    // Alternatively:
    // start the operation, keep the operation name, and resume later
    $operationResponse = $regionInstanceGroupManagersClient->patchPerInstanceConfigs($instanceGroupManager, $project, $region, $regionInstanceGroupManagerPatchInstanceConfigReqResource);
    $operationName = $operationResponse->getName();
    // ... do other work
    $newOperationResponse = $regionInstanceGroupManagersClient->resumeOperation($operationName, 'patchPerInstanceConfigs');
    while (!$newOperationResponse->isDone()) {
        // ... do other work
        $newOperationResponse->reload();
    }
    if ($newOperationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $newOperationResponse->getError();
        // handleError($error)
    }
} finally {
    $regionInstanceGroupManagersClient->close();
}

Parameters
Name	Description
`instanceGroupManager`	`string` The name of the managed instance group. It should conform to RFC1035.
`project`	`string` Project ID for this request.
`region`	`string` Name of the region scoping this request, should conform to RFC1035.
`regionInstanceGroupManagerPatchInstanceConfigReqResource`	`Google\Cloud\Compute\V1\RegionInstanceGroupManagerPatchInstanceConfigReq` The body resource for this request
`optionalArgs`	`array` Optional.
`↳ requestId`	`string` An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. This prevents clients from accidentally creating duplicate commitments. The request ID must be a valid UUID with the exception that zero UUID is not supported ( 00000000-0000-0000-0000-000000000000).
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a {@see} object, or an associative array of retry settings parameters. See the documentation on {@see} for example usage.

Returns
Type	Description
`Google\ApiCore\OperationResponse`

recreateInstances

Flags the specified VM instances in the managed instance group to be immediately recreated. Each instance is recreated using the group's current configuration. This operation is marked as DONE when the flag is set even if the instances have not yet been recreated. You must separately verify the status of each instance by checking its currentAction field; for more information, see Checking the status of managed instances. If the group is part of a backend service that has enabled connection draining, it can take up to 60 seconds after the connection draining duration has elapsed before the VM instance is removed or deleted. You can specify a maximum of 1000 instances with this method per request.

Sample code:

$regionInstanceGroupManagersClient = new RegionInstanceGroupManagersClient();
try {
    $instanceGroupManager = 'instance_group_manager';
    $project = 'project';
    $region = 'region';
    $regionInstanceGroupManagersRecreateRequestResource = new RegionInstanceGroupManagersRecreateRequest();
    $operationResponse = $regionInstanceGroupManagersClient->recreateInstances($instanceGroupManager, $project, $region, $regionInstanceGroupManagersRecreateRequestResource);
    $operationResponse->pollUntilComplete();
    if ($operationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $operationResponse->getError();
        // handleError($error)
    }
    // Alternatively:
    // start the operation, keep the operation name, and resume later
    $operationResponse = $regionInstanceGroupManagersClient->recreateInstances($instanceGroupManager, $project, $region, $regionInstanceGroupManagersRecreateRequestResource);
    $operationName = $operationResponse->getName();
    // ... do other work
    $newOperationResponse = $regionInstanceGroupManagersClient->resumeOperation($operationName, 'recreateInstances');
    while (!$newOperationResponse->isDone()) {
        // ... do other work
        $newOperationResponse->reload();
    }
    if ($newOperationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $newOperationResponse->getError();
        // handleError($error)
    }
} finally {
    $regionInstanceGroupManagersClient->close();
}

Parameters
Name	Description
`instanceGroupManager`	`string` Name of the managed instance group.
`project`	`string` Project ID for this request.
`region`	`string` Name of the region scoping this request.
`regionInstanceGroupManagersRecreateRequestResource`	`Google\Cloud\Compute\V1\RegionInstanceGroupManagersRecreateRequest` The body resource for this request
`optionalArgs`	`array` Optional.
`↳ requestId`	`string` An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. This prevents clients from accidentally creating duplicate commitments. The request ID must be a valid UUID with the exception that zero UUID is not supported ( 00000000-0000-0000-0000-000000000000).
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a {@see} object, or an associative array of retry settings parameters. See the documentation on {@see} for example usage.

Returns
Type	Description
`Google\ApiCore\OperationResponse`

resize

Changes the intended size of the managed instance group. If you increase the size, the group creates new instances using the current instance template. If you decrease the size, the group deletes one or more instances. The resize operation is marked DONE if the resize request is successful. The underlying actions take additional time. You must separately verify the status of the creating or deleting actions with the listmanagedinstances method. If the group is part of a backend service that has enabled connection draining, it can take up to 60 seconds after the connection draining duration has elapsed before the VM instance is removed or deleted.

Sample code:

$regionInstanceGroupManagersClient = new RegionInstanceGroupManagersClient();
try {
    $instanceGroupManager = 'instance_group_manager';
    $project = 'project';
    $region = 'region';
    $size = 0;
    $operationResponse = $regionInstanceGroupManagersClient->resize($instanceGroupManager, $project, $region, $size);
    $operationResponse->pollUntilComplete();
    if ($operationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $operationResponse->getError();
        // handleError($error)
    }
    // Alternatively:
    // start the operation, keep the operation name, and resume later
    $operationResponse = $regionInstanceGroupManagersClient->resize($instanceGroupManager, $project, $region, $size);
    $operationName = $operationResponse->getName();
    // ... do other work
    $newOperationResponse = $regionInstanceGroupManagersClient->resumeOperation($operationName, 'resize');
    while (!$newOperationResponse->isDone()) {
        // ... do other work
        $newOperationResponse->reload();
    }
    if ($newOperationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $newOperationResponse->getError();
        // handleError($error)
    }
} finally {
    $regionInstanceGroupManagersClient->close();
}

Parameters
Name	Description
`instanceGroupManager`	`string` Name of the managed instance group.
`project`	`string` Project ID for this request.
`region`	`string` Name of the region scoping this request.
`size`	`int` Number of instances that should exist in this instance group manager.
`optionalArgs`	`array` Optional.
`↳ requestId`	`string` An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. This prevents clients from accidentally creating duplicate commitments. The request ID must be a valid UUID with the exception that zero UUID is not supported ( 00000000-0000-0000-0000-000000000000).
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a {@see} object, or an associative array of retry settings parameters. See the documentation on {@see} for example usage.

Returns
Type	Description
`Google\ApiCore\OperationResponse`

setInstanceTemplate

Sets the instance template to use when creating new instances or recreating instances in this group. Existing instances are not affected.

Sample code:

$regionInstanceGroupManagersClient = new RegionInstanceGroupManagersClient();
try {
    $instanceGroupManager = 'instance_group_manager';
    $project = 'project';
    $region = 'region';
    $regionInstanceGroupManagersSetTemplateRequestResource = new RegionInstanceGroupManagersSetTemplateRequest();
    $operationResponse = $regionInstanceGroupManagersClient->setInstanceTemplate($instanceGroupManager, $project, $region, $regionInstanceGroupManagersSetTemplateRequestResource);
    $operationResponse->pollUntilComplete();
    if ($operationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $operationResponse->getError();
        // handleError($error)
    }
    // Alternatively:
    // start the operation, keep the operation name, and resume later
    $operationResponse = $regionInstanceGroupManagersClient->setInstanceTemplate($instanceGroupManager, $project, $region, $regionInstanceGroupManagersSetTemplateRequestResource);
    $operationName = $operationResponse->getName();
    // ... do other work
    $newOperationResponse = $regionInstanceGroupManagersClient->resumeOperation($operationName, 'setInstanceTemplate');
    while (!$newOperationResponse->isDone()) {
        // ... do other work
        $newOperationResponse->reload();
    }
    if ($newOperationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $newOperationResponse->getError();
        // handleError($error)
    }
} finally {
    $regionInstanceGroupManagersClient->close();
}

Parameters
Name	Description
`instanceGroupManager`	`string` The name of the managed instance group.
`project`	`string` Project ID for this request.
`region`	`string` Name of the region scoping this request.
`regionInstanceGroupManagersSetTemplateRequestResource`	`Google\Cloud\Compute\V1\RegionInstanceGroupManagersSetTemplateRequest` The body resource for this request
`optionalArgs`	`array` Optional.
`↳ requestId`	`string` An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. This prevents clients from accidentally creating duplicate commitments. The request ID must be a valid UUID with the exception that zero UUID is not supported ( 00000000-0000-0000-0000-000000000000).
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a {@see} object, or an associative array of retry settings parameters. See the documentation on {@see} for example usage.

Returns
Type	Description
`Google\ApiCore\OperationResponse`

setTargetPools

Modifies the target pools to which all new instances in this group are assigned. Existing instances in the group are not affected.

Sample code:

$regionInstanceGroupManagersClient = new RegionInstanceGroupManagersClient();
try {
    $instanceGroupManager = 'instance_group_manager';
    $project = 'project';
    $region = 'region';
    $regionInstanceGroupManagersSetTargetPoolsRequestResource = new RegionInstanceGroupManagersSetTargetPoolsRequest();
    $operationResponse = $regionInstanceGroupManagersClient->setTargetPools($instanceGroupManager, $project, $region, $regionInstanceGroupManagersSetTargetPoolsRequestResource);
    $operationResponse->pollUntilComplete();
    if ($operationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $operationResponse->getError();
        // handleError($error)
    }
    // Alternatively:
    // start the operation, keep the operation name, and resume later
    $operationResponse = $regionInstanceGroupManagersClient->setTargetPools($instanceGroupManager, $project, $region, $regionInstanceGroupManagersSetTargetPoolsRequestResource);
    $operationName = $operationResponse->getName();
    // ... do other work
    $newOperationResponse = $regionInstanceGroupManagersClient->resumeOperation($operationName, 'setTargetPools');
    while (!$newOperationResponse->isDone()) {
        // ... do other work
        $newOperationResponse->reload();
    }
    if ($newOperationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $newOperationResponse->getError();
        // handleError($error)
    }
} finally {
    $regionInstanceGroupManagersClient->close();
}

Parameters
Name	Description
`instanceGroupManager`	`string` Name of the managed instance group.
`project`	`string` Project ID for this request.
`region`	`string` Name of the region scoping this request.
`regionInstanceGroupManagersSetTargetPoolsRequestResource`	`Google\Cloud\Compute\V1\RegionInstanceGroupManagersSetTargetPoolsRequest` The body resource for this request
`optionalArgs`	`array` Optional.
`↳ requestId`	`string` An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. This prevents clients from accidentally creating duplicate commitments. The request ID must be a valid UUID with the exception that zero UUID is not supported ( 00000000-0000-0000-0000-000000000000).
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a {@see} object, or an associative array of retry settings parameters. See the documentation on {@see} for example usage.

Returns
Type	Description
`Google\ApiCore\OperationResponse`

updatePerInstanceConfigs

Inserts or updates per-instance configurations for the managed instance group. perInstanceConfig.name serves as a key used to distinguish whether to perform insert or patch.

Sample code:

$regionInstanceGroupManagersClient = new RegionInstanceGroupManagersClient();
try {
    $instanceGroupManager = 'instance_group_manager';
    $project = 'project';
    $region = 'region';
    $regionInstanceGroupManagerUpdateInstanceConfigReqResource = new RegionInstanceGroupManagerUpdateInstanceConfigReq();
    $operationResponse = $regionInstanceGroupManagersClient->updatePerInstanceConfigs($instanceGroupManager, $project, $region, $regionInstanceGroupManagerUpdateInstanceConfigReqResource);
    $operationResponse->pollUntilComplete();
    if ($operationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $operationResponse->getError();
        // handleError($error)
    }
    // Alternatively:
    // start the operation, keep the operation name, and resume later
    $operationResponse = $regionInstanceGroupManagersClient->updatePerInstanceConfigs($instanceGroupManager, $project, $region, $regionInstanceGroupManagerUpdateInstanceConfigReqResource);
    $operationName = $operationResponse->getName();
    // ... do other work
    $newOperationResponse = $regionInstanceGroupManagersClient->resumeOperation($operationName, 'updatePerInstanceConfigs');
    while (!$newOperationResponse->isDone()) {
        // ... do other work
        $newOperationResponse->reload();
    }
    if ($newOperationResponse->operationSucceeded()) {
        // if creating/modifying, retrieve the target resource
    } else {
        $error = $newOperationResponse->getError();
        // handleError($error)
    }
} finally {
    $regionInstanceGroupManagersClient->close();
}

Parameters
Name	Description
`instanceGroupManager`	`string` The name of the managed instance group. It should conform to RFC1035.
`project`	`string` Project ID for this request.
`region`	`string` Name of the region scoping this request, should conform to RFC1035.
`regionInstanceGroupManagerUpdateInstanceConfigReqResource`	`Google\Cloud\Compute\V1\RegionInstanceGroupManagerUpdateInstanceConfigReq` The body resource for this request
`optionalArgs`	`array` Optional.
`↳ requestId`	`string` An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. This prevents clients from accidentally creating duplicate commitments. The request ID must be a valid UUID with the exception that zero UUID is not supported ( 00000000-0000-0000-0000-000000000000).
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a {@see} object, or an associative array of retry settings parameters. See the documentation on {@see} for example usage.

Returns
Type	Description
`Google\ApiCore\OperationResponse`

Constants

SERVICE_NAME

Value: 'google.cloud.compute.v1.RegionInstanceGroupManagers'

The name of the service.

SERVICE_ADDRESS

Value: 'compute.googleapis.com'

The default address of the service.

DEFAULT_SERVICE_PORT

Value: 443

The default port of the service.

CODEGEN_NAME

Value: 'gapic'

The name of the code generator, to be included in the agent header.