Reference documentation and code samples for the Cloud Spanner Instance Admin V1 API module Google::Cloud::Spanner::Admin::Instance::V1::InstanceAdmin.
Cloud Spanner Instance Admin API
The Cloud Spanner Instance Admin API can be used to create, delete, modify and list instances. Instances are dedicated Cloud Spanner serving and storage resources to be used by Cloud Spanner databases.
Each instance has a "configuration", which dictates where the serving resources for the Cloud Spanner instance are located (e.g., US-central, Europe). Configurations are created by Google based on resource availability.
Cloud Spanner billing is based on the instances that exist and their sizes. After an instance exists, there are no additional per-database or per-operation charges for use of the instance (though there may be additional network bandwidth charges). Instances offer isolation: problems with databases in one instance will not affect other instances. However, within an instance databases can affect each other. For example, if one database in an instance receives a lot of requests and consumes most of the instance resources, fewer resources are available for other databases in that instance, and their performance may suffer.
To load this service and instantiate a REST client:
require "google/cloud/spanner/admin/instance/v1/instance_admin/rest"
client = ::Google::Cloud::Spanner::Admin::Instance::V1::InstanceAdmin::Rest::Client.new