Google Spanner Reference (Beta)

This topic gives you reference information about the Google Spanner service (csb-google-spanner). It details the plans, configuration parameters, and binding credentials.

Caution The Google Spanner service offering is currently in beta and is intended for evaluation and test purposes only. Do not use this product in a production environment.

Plans

The table below lists the plans for Google Spanner:

Plan	Description
small	Single Node Spanner with 10 GB storage
medium	2 Nodes Spanner with 20 GB storage
large	3 Nodes and Multi Region Spanner with 100 GB storage

Plan Configuration Parameters

When configuring Cloud Service Broker for GCP you can add additional plans. For how to configure plans, see Configure Services with Cloud Service Broker for GCP.

The following table lists parameters which can only be configured for additional plans:

Parameter Name	Values	Default
name*	The plan name	n/a
id*	A unique GUID	n/a
description*	Description of the new plan	n/a
num_nodes*	Minimum number of cores for service instance, 1–64	1
storage_gb*	Size of storage volume for service instance, 10–4096	10
display_name	Name to use when displaying plan in marketplace	n/a
free	When false, Service Instances of this Service Plan have a cost	true
bindable	Specifies whether Service Instances of the Service Plan can bind to applications	true
plan_updateable	Whether the Plan supports upgrade/downgrade/sidegrade to another version	true

^* Required

You can also add any of the configuration parameters listed in the parameters section to your plan.

Note If you set a parameter at plan level, developers cannot change the value when creating or updating service instances.

Configuration Parameters

You can provision a service by running:

cf create-service csb-google-spanner PLAN-NAME SERVICE-INSTANCE-NAME -c '{"PARAMETER-NAME": "PARAMETER-VALUE"}'

You can update the configuration parameters for a service instance by running:

cf update-service SERVICE-INSTANCE-NAME -c '{"PARAMETER-NAME": "PARAMETER-VALUE"}'

The following table lists the parameters that you can configure, by using the -c flag, when provisioning a csb-google-spanner service:

Parameter Name	Type	Description	Default	Operation
instance_name	string	The name of the spanner instance to create.	csb-spanner-INSTANCE-ID	provision and update
db_name	string	The name of the database to create.	csb-spanner	provision and update
config	string	The name of the instance's configuration that defines the geographic placement and replication of your databases in this instance. Similar to, but not quite the same as a region.	us-central1	provision and update
ddl	array	An optional list of DDL statements to run inside the newly created database.	[]	provision and update
region	string	The region of the spanner instance.	us-central1	provision and update
credentials	string	The GCP credentials.	The value the operator entered for Credentials in Tanzu Operations Manager.	provision and update
project	string	The GCP project to use.	The value the operator entered for Project in Tanzu Operations Manager.	provision and update

Binding Parameters

You can bind a service by running:

cf bind-service APP-NAME SERVICE-INSTANCE --binding-name BINDING-NAME -c '{"PARAMETER-NAME": "PARAMETER-VALUE"}'

The following table lists the parameters that you can configure, by using the -c flag, when binding to a csb-google-spanner service:

Parameter Name	Type	Description	Default
role	string	The role for the account. For more information, see the Google Cloud documentation. Your operator can override the default enumeration.	roles/editor
credentials	string	The GCP credentials.	The value the operator entered for Credentials in Tanzu Operations Manager.

Binding Credentials

The format for binding credentials for Google Spanner is as follows:

{
    "db_name" : "DATABASE-NAME",
    "instance" : "INSTANCE-NAME",
    "Credentials" : "SERVICE-ACCOUNT-CREDENTIALS",
    "Email" : "SERVICE-ACCOUNT-EMAIL",
    "Name" : "SERVICE-ACCOUNT-NAME",
    "PrivateKeyData" : "SERVICE-ACCOUNT-PRIVATE-KEY",
    "ProjectId" : "GCP-PROJECT-ID",
    "UniqueId" : "SERVICE-ACCOUNT-UNIQUE-ID",
    "policy_etag": "IAM-POLICY-ETAG",
    "binding_etag": "IAM-BINDING-ETAG",
    "member_etag": "IAM-MEMBER-ETAG"
}