Class Instance (2.15.0) 

Instance(
 instance_id, client, display_name=None, instance_type=None, labels=None, _state=None
)

Representation of a Google Cloud Bigtable Instance.

We can use an Instance to:

  • reload itself
  • create itself
  • update itself
  • delete itself

Parameters

Name Description
instance_id str

The ID of the instance.

client Client

The client that owns the instance. Provides authorization and a project ID.

display_name str

(Optional) The display name for the instance in the Cloud Console UI. (Must be between 4 and 30 characters.) If this value is not set in the constructor, will fall back to the instance ID.

instance_type int

(Optional) The type of the instance. Possible values are represented by the following constants: :data:google.cloud.bigtable.enums.Instance.Type.PRODUCTION. :data:google.cloud.bigtable.enums.Instance.Type.DEVELOPMENT, Defaults to :data:google.cloud.bigtable.enums.Instance.Type.UNSPECIFIED.

labels dict

(Optional) Labels are a flexible and lightweight mechanism for organizing cloud resources into groups that reflect a customer's organizational needs and deployment strategies. They can be used to filter resources and aggregate metrics. Label keys must be between 1 and 63 characters long. Maximum 64 labels can be associated with a given resource. Label values must be between 0 and 63 characters long. Keys and values must both be under 128 bytes.

_state int

(OutputOnly) The current state of the instance. Possible values are represented by the following constants: :data:google.cloud.bigtable.enums.Instance.State.STATE_NOT_KNOWN. :data:google.cloud.bigtable.enums.Instance.State.READY. :data:google.cloud.bigtable.enums.Instance.State.CREATING.

Properties

name

Instance name used in requests.

For example:

.. literalinclude:: snippets.py :start-after: [START bigtable_api_instance_name] :end-before: [END bigtable_api_instance_name] :dedent: 4

The instance name is of the form

`"projects/{project}/instances/{instance_id}"`
Returns
Type Description
str Return a fully-qualified instance string.

state

google.cloud.bigtable.enums.Instance.State: state of Instance.

For example:

.. literalinclude:: snippets.py :start-after: [START bigtable_api_instance_state] :end-before: [END bigtable_api_instance_state] :dedent: 4

Methods

app_profile

app_profile(
 app_profile_id,
 routing_policy_type=None,
 description=None,
 cluster_id=None,
 multi_cluster_ids=None,
 allow_transactional_writes=None,
)

Factory to create AppProfile associated with this instance.

For example:

.. literalinclude:: snippets.py :start-after: [START bigtable_api_create_app_profile] :end-before: [END bigtable_api_create_app_profile] :dedent: 4

Parameter
Name Description
app_profile_id str

The ID of the AppProfile. Must be of the form `<code>_a-zA-Z0-9][-_.a-zA-Z0-9]</code>*. :type: routing_policy_type: int :param: routing_policy_type: The type of the routing policy. Possible values are represented by the following constants: :data:google.cloud.bigtable.enums.RoutingPolicyType.ANY :data:google.cloud.bigtable.enums.RoutingPolicyType.SINGLE` :type: description: str :param: description: (Optional) Long form description of the use case for this AppProfile. :type: cluster_id: str :param: cluster_id: (Optional) Unique cluster_id which is only required when routing_policy_type is ROUTING_POLICY_TYPE_SINGLE. :type: multi_cluster_ids: list :param: multi_cluster_ids: (Optional) The set of clusters to route to. The order is ignored; clusters will be tried in order of distance. If left empty, all clusters are eligible. :type: allow_transactional_writes: bool :param: allow_transactional_writes: (Optional) If true, allow transactional writes for ROUTING_POLICY_TYPE_SINGLE.

Returns
Type Description
AppProfile> AppProfile for this instance.

cluster

cluster(
 cluster_id,
 location_id=None,
 serve_nodes=None,
 default_storage_type=None,
 kms_key_name=None,
 min_serve_nodes=None,
 max_serve_nodes=None,
 cpu_utilization_percent=None,
)

Factory to create a cluster associated with this instance.

For example:

.. literalinclude:: snippets.py :start-after: [START bigtable_api_create_cluster] :end-before: [END bigtable_api_create_cluster] :dedent: 4

Parameters
Name Description
cluster_id str

The ID of the cluster.

location_id str

(Creation Only) The location where this cluster's nodes and storage reside. For best performance, clients should be located as close as possible to this cluster. For list of supported locations refer to https://cloud.google.com/bigtable/docs/locations

serve_nodes int

(Optional) The number of nodes in the cluster.

default_storage_type int

(Optional) The type of storage Possible values are represented by the following constants: :data:google.cloud.bigtable.enums.StorageType.SSD. :data:google.cloud.bigtable.enums.StorageType.HDD, Defaults to :data:google.cloud.bigtable.enums.StorageType.UNSPECIFIED.

kms_key_name str

(Optional, Creation Only) The name of the KMS customer managed encryption key (CMEK) to use for at-rest encryption of data in this cluster. If omitted, Google's default encryption will be used. If specified, the requirements for this key are: 1) The Cloud Bigtable service account associated with the project that contains the cluster must be granted the cloudkms.cryptoKeyEncrypterDecrypter role on the CMEK. 2) Only regional keys can be used and the region of the CMEK key must match the region of the cluster. 3) All clusters within an instance must use the same CMEK key.

Returns
Type Description
Cluster a cluster owned by this instance.

create

create(
 location_id=None,
 serve_nodes=None,
 default_storage_type=None,
 clusters=None,
 min_serve_nodes=None,
 max_serve_nodes=None,
 cpu_utilization_percent=None,
)

Create this instance.

For example:

.. literalinclude:: snippets.py :start-after: [START bigtable_api_create_prod_instance] :end-before: [END bigtable_api_create_prod_instance] :dedent: 4

Parameters
Name Description
location_id str

(Creation Only) The location where nodes and storage of the cluster owned by this instance reside. For best performance, clients should be located as close as possible to cluster's location. For list of supported locations refer to https://cloud.google.com/bigtable/docs/locations

serve_nodes int

(Optional) The number of nodes in the instance's cluster; used to set up the instance's cluster.

default_storage_type int

(Optional) The storage media type for persisting Bigtable data. Possible values are represented by the following constants: :data:google.cloud.bigtable.enums.StorageType.SSD. :data:google.cloud.bigtable.enums.StorageType.HDD, Defaults to :data:google.cloud.bigtable.enums.StorageType.UNSPECIFIED.

clusters class:``[google.cloud.bigtable.cluster.Cluster]

List of clusters to be created.

Exceptions
Type Description
`ValueErro
Returns
Type Description
google.api_core.operation.Operation The long-running operation corresponding to the create operation.

delete

delete()

Delete this instance.

For example:

.. literalinclude:: snippets.py :start-after: [START bigtable_api_delete_instance] :end-before: [END bigtable_api_delete_instance] :dedent: 4

Marks an instance and all of its tables for permanent deletion in 7 days.

Immediately upon completion of the request:

  • Billing will cease for all of the instance's reserved resources.
  • The instance's delete_time field will be set 7 days in the future.

Soon afterward:

  • All tables within the instance will become unavailable.

At the instance's delete_time:

  • The instance and all of its tables will immediately and irrevocably disappear from the API, and their data will be permanently deleted.

exists

exists()

Check whether the instance already exists.

For example:

.. literalinclude:: snippets.py :start-after: [START bigtable_api_check_instance_exists] :end-before: [END bigtable_api_check_instance_exists] :dedent: 4

Returns
Type Description
bool True if the table exists, else False.

from_pb

from_pb(instance_pb, client)

Creates an instance instance from a protobuf.

For example:

.. literalinclude:: snippets.py :start-after: [START bigtable_api_instance_from_pb] :end-before: [END bigtable_api_instance_from_pb] :dedent: 4

Parameters
Name Description
instance_pb instance.Instance

An instance protobuf object.

client Client

The client that owns the instance.

Exceptions
Type Description
`ValueErro
Returns
Type Description
Instance The instance parsed from the protobuf response.

get_iam_policy

get_iam_policy(requested_policy_version=None)

Gets the access control policy for an instance resource.

For example:

.. literalinclude:: snippets.py :start-after: [START bigtable_api_get_iam_policy] :end-before: [END bigtable_api_get_iam_policy] :dedent: 4

Parameter
Name Description
requested_policy_version int or NoneType

Optional. The version of IAM policies to request. If a policy with a condition is requested without setting this, the server will return an error. This must be set to a value of 3 to retrieve IAM policies containing conditions. This is to prevent client code that isn't aware of IAM conditions from interpreting and modifying policies incorrectly. The service might return a policy with version lower than the one that was requested, based on the feature syntax in the policy fetched.

Returns
Type Description
Policy The current IAM policy of this instance

list_app_profiles

list_app_profiles()

Lists information about AppProfiles in an instance.

For example:

.. literalinclude:: snippets.py :start-after: [START bigtable_api_list_app_profiles] :end-before: [END bigtable_api_list_app_profiles] :dedent: 4

Returns
Type Description
:list:[AppProfile ] A :list:[AppProfile ]. By default, this is a list of AppProfile instances.

list_clusters

list_clusters()

List the clusters in this instance.

For example:

.. literalinclude:: snippets.py :start-after: [START bigtable_api_list_clusters_on_instance] :end-before: [END bigtable_api_list_clusters_on_instance] :dedent: 4

Returns
Type Description
tuple (clusters, failed_locations), where 'clusters' is list of Cluster, and 'failed_locations' is a list of locations which could not be resolved.

list_tables

list_tables()

List the tables in this instance.

For example:

.. literalinclude:: snippets.py :start-after: [START bigtable_api_list_tables] :end-before: [END bigtable_api_list_tables] :dedent: 4

Exceptions
Type Description
`ValueErro
Returns
Type Description
list of Table The list of tables owned by the instance.

reload

reload()

Reload the metadata for this instance.

For example:

.. literalinclude:: snippets.py :start-after: [START bigtable_api_reload_instance] :end-before: [END bigtable_api_reload_instance] :dedent: 4

set_iam_policy

set_iam_policy(policy)

Sets the access control policy on an instance resource. Replaces any existing policy.

For more information about policy, please see documentation of class google.cloud.bigtable.policy.Policy

For example:

.. literalinclude:: snippets.py :start-after: [START bigtable_api_set_iam_policy] :end-before: [END bigtable_api_set_iam_policy] :dedent: 4

Parameter
Name Description
policy Policy

A new IAM policy to replace the current IAM policy of this instance

Returns
Type Description
Policy The current IAM policy of this instance.

table

table(table_id, mutation_timeout=None, app_profile_id=None)

Factory to create a table associated with this instance.

For example:

.. literalinclude:: snippets.py :start-after: [START bigtable_api_create_table] :end-before: [END bigtable_api_create_table] :dedent: 4

Parameters
Name Description
table_id str

The ID of the table.

mutation_timeout int

(Optional) The overriding mutation timeout.

app_profile_id str

(Optional) The unique name of the AppProfile.

Returns
Type Description
Table The table owned by this instance.

test_iam_permissions

test_iam_permissions(permissions)

Returns permissions that the caller has on the specified instance resource.

For example:

.. literalinclude:: snippets.py :start-after: [START bigtable_api_test_iam_permissions] :end-before: [END bigtable_api_test_iam_permissions] :dedent: 4

Parameter
Name Description
permissions list

The set of permissions to check for the resource. Permissions with wildcards (such as '' or 'storage.') are not allowed. For more information see IAM Overview https://cloud.google.com/iam/docs/overview#permissions . Bigtable Permissions https://cloud.google.com/bigtable/docs/access-control .

Returns
Type Description
list A List(string) of permissions allowed on the instance

update

update()

Updates an instance within a project.

For example:

.. literalinclude:: snippets.py :start-after: [START bigtable_api_update_instance] :end-before: [END bigtable_api_update_instance] :dedent: 4

Returns
Type Description
google.api_core.operation.Operation The long-running operation corresponding to the update operation.

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Last updated 2025年10月30日 UTC.