---
title: Getting Started with Datadog
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: Docs > Infrastructure > Datadog Resource Catalog
---

# gcp_spanner_instance_config{% #gcp_spanner_instance_config %}

## `ancestors`{% #ancestors %}

**Type**: `UNORDERED_LIST_STRING`

## `base_config`{% #base_config %}

**Type**: `STRING`**Provider name**: `baseConfig`**Description**: Base configuration name, e.g. projects//instanceConfigs/nam3, based on which this configuration is created. Only set for user-managed configurations. `base_config` must refer to a configuration of type `GOOGLE_MANAGED` in the same project as this configuration.

## `config_type`{% #config_type %}

**Type**: `STRING`**Provider name**: `configType`**Description**: Output only. Whether this instance configuration is a Google-managed or user-managed configuration.**Possible values**:

- `TYPE_UNSPECIFIED` - Unspecified.
- `GOOGLE_MANAGED` - Google-managed configuration.
- `USER_MANAGED` - User-managed configuration.

## `etag`{% #etag %}

**Type**: `STRING`**Provider name**: `etag`**Description**: etag is used for optimistic concurrency control as a way to help prevent simultaneous updates of a instance configuration from overwriting each other. It is strongly suggested that systems make use of the etag in the read-modify-write cycle to perform instance configuration updates in order to avoid race conditions: An etag is returned in the response which contains instance configurations, and systems are expected to put that etag in the request to update instance configuration to ensure that their change is applied to the same version of the instance configuration. If no etag is provided in the call to update the instance configuration, then the existing instance configuration is overwritten blindly.

## `free_instance_availability`{% #free_instance_availability %}

**Type**: `STRING`**Provider name**: `freeInstanceAvailability`**Description**: Output only. Describes whether free instances are available to be created in this instance configuration.**Possible values**:

- `FREE_INSTANCE_AVAILABILITY_UNSPECIFIED` - Not specified.
- `AVAILABLE` - Indicates that free instances are available to be created in this instance configuration.
- `UNSUPPORTED` - Indicates that free instances are not supported in this instance configuration.
- `DISABLED` - Indicates that free instances are currently not available to be created in this instance configuration.
- `QUOTA_EXCEEDED` - Indicates that additional free instances cannot be created in this instance configuration because the project has reached its limit of free instances.

## `gcp_display_name`{% #gcp_display_name %}

**Type**: `STRING`**Provider name**: `displayName`**Description**: The name of this instance configuration as it appears in UIs.

## `labels`{% #labels %}

**Type**: `UNORDERED_LIST_STRING`

## `leader_options`{% #leader_options %}

**Type**: `UNORDERED_LIST_STRING`**Provider name**: `leaderOptions`**Description**: Allowed values of the "default_leader" schema option for databases in instances that use this instance configuration.

## `name`{% #name %}

**Type**: `STRING`**Provider name**: `name`**Description**: A unique identifier for the instance configuration. Values are of the form `projects//instanceConfigs/a-z*`. User instance configuration must start with `custom-`.

## `optional_replicas`{% #optional_replicas %}

**Type**: `UNORDERED_LIST_STRUCT`**Provider name**: `optionalReplicas`**Description**: Output only. The available optional replicas to choose from for user-managed configurations. Populated for Google-managed configurations.

- `default_leader_location`**Type**: `BOOLEAN`**Provider name**: `defaultLeaderLocation`**Description**: If true, this location is designated as the default leader location where leader replicas are placed. See the [region types documentation](https://cloud.google.com/spanner/docs/instances#region_types) for more details.
- `location`**Type**: `STRING`**Provider name**: `location`**Description**: The location of the serving resources, e.g., "us-central1".
- `type`**Type**: `STRING`**Provider name**: `type`**Description**: The type of replica.**Possible values**:
  - `TYPE_UNSPECIFIED` - Not specified.
  - `READ_WRITE` - Read-write replicas support both reads and writes. These replicas: * Maintain a full copy of your data. * Serve reads. * Can vote whether to commit a write. * Participate in leadership election. * Are eligible to become a leader.
  - `READ_ONLY` - Read-only replicas only support reads (not writes). Read-only replicas: * Maintain a full copy of your data. * Serve reads. * Do not participate in voting to commit writes. * Are not eligible to become a leader.
  - `WITNESS` - Witness replicas don't support reads but do participate in voting to commit writes. Witness replicas: * Do not maintain a full copy of data. * Do not serve reads. * Vote whether to commit writes. * Participate in leader election but are not eligible to become leader.

## `organization_id`{% #organization_id %}

**Type**: `STRING`

## `parent`{% #parent %}

**Type**: `STRING`

## `project_id`{% #project_id %}

**Type**: `STRING`

## `project_number`{% #project_number %}

**Type**: `STRING`

## `quorum_type`{% #quorum_type %}

**Type**: `STRING`**Provider name**: `quorumType`**Description**: Output only. The `QuorumType` of the instance configuration.**Possible values**:

- `QUORUM_TYPE_UNSPECIFIED` - Quorum type not specified.
- `REGION` - An instance configuration tagged with `REGION` quorum type forms a write quorum in a single region.
- `DUAL_REGION` - An instance configuration tagged with the `DUAL_REGION` quorum type forms a write quorum with exactly two read-write regions in a multi-region configuration. This instance configuration requires failover in the event of regional failures.
- `MULTI_REGION` - An instance configuration tagged with the `MULTI_REGION` quorum type forms a write quorum from replicas that are spread across more than one region in a multi-region configuration.

## `reconciling`{% #reconciling %}

**Type**: `BOOLEAN`**Provider name**: `reconciling`**Description**: Output only. If true, the instance configuration is being created or updated. If false, there are no ongoing operations for the instance configuration.

## `region_id`{% #region_id %}

**Type**: `STRING`

## `replicas`{% #replicas %}

**Type**: `UNORDERED_LIST_STRUCT`**Provider name**: `replicas`**Description**: The geographic placement of nodes in this instance configuration and their replication properties. To create user-managed configurations, input `replicas` must include all replicas in `replicas` of the `base_config` and include one or more replicas in the `optional_replicas` of the `base_config`.

- `default_leader_location`**Type**: `BOOLEAN`**Provider name**: `defaultLeaderLocation`**Description**: If true, this location is designated as the default leader location where leader replicas are placed. See the [region types documentation](https://cloud.google.com/spanner/docs/instances#region_types) for more details.
- `location`**Type**: `STRING`**Provider name**: `location`**Description**: The location of the serving resources, e.g., "us-central1".
- `type`**Type**: `STRING`**Provider name**: `type`**Description**: The type of replica.**Possible values**:
  - `TYPE_UNSPECIFIED` - Not specified.
  - `READ_WRITE` - Read-write replicas support both reads and writes. These replicas: * Maintain a full copy of your data. * Serve reads. * Can vote whether to commit a write. * Participate in leadership election. * Are eligible to become a leader.
  - `READ_ONLY` - Read-only replicas only support reads (not writes). Read-only replicas: * Maintain a full copy of your data. * Serve reads. * Do not participate in voting to commit writes. * Are not eligible to become a leader.
  - `WITNESS` - Witness replicas don't support reads but do participate in voting to commit writes. Witness replicas: * Do not maintain a full copy of data. * Do not serve reads. * Vote whether to commit writes. * Participate in leader election but are not eligible to become leader.

## `resource_name`{% #resource_name %}

**Type**: `STRING`

## `state`{% #state %}

**Type**: `STRING`**Provider name**: `state`**Description**: Output only. The current instance configuration state. Applicable only for `USER_MANAGED` configurations.**Possible values**:

- `STATE_UNSPECIFIED` - Not specified.
- `CREATING` - The instance configuration is still being created.
- `READY` - The instance configuration is fully created and ready to be used to create instances.

## `storage_limit_per_processing_unit`{% #storage_limit_per_processing_unit %}

**Type**: `INT64`**Provider name**: `storageLimitPerProcessingUnit`**Description**: Output only. The storage limit in bytes per processing unit.

## `tags`{% #tags %}

**Type**: `UNORDERED_LIST_STRING`

## `zone_id`{% #zone_id %}

**Type**: `STRING`