chore(spanner): Add spanner_create_instance_partition sample (#1550)

* chore(spanner): Add spanner_create_instance_partition sample

* Update docstring to YARD doc format

Author: aandreassa

spanner/spanner_create_instance_partition.rb

@@ -0,0 +1,56 @@
+# Copyright 2025 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# [START spanner_create_instance_partition]
+#
+# Creates an instance partition.
+#
+# @param project_id [String] The ID of the Google Cloud project.
+# @param instance_id [String] The ID of the Spanner instance.
+# @param instance_partition_id [String] The ID of the Spanner instance partition.
+def spanner_create_instance_partition project_id:, instance_id:, instance_partition_id:
+  require "google/cloud/spanner/admin/instance"
+
+  instance_admin_client = Google::Cloud::Spanner::Admin::Instance.instance_admin
+
+  instance_path = instance_admin_client.instance_path \
+    project: project_id,
+    instance: instance_id
+  instance_partition = {
+    display_name: "Test Instance Partition",
+    config:       instance_admin_client.instance_config_path(project: project_id, instance_config: "nam3"),
+    node_count:   1
+  }
+
+  job = instance_admin_client.create_instance_partition \
+    parent:                instance_path,
+    instance_partition_id: instance_partition_id,
+    instance_partition:    instance_partition
+
+  puts "Waiting for create instance partition operation to complete"
+  job.wait_until_done!
+
+  if job.error?
+    puts job.error
+  else
+    puts "Created instance partition #{instance_partition_id} on instance #{instance_id}"
+  end
+end
+# [END spanner_create_instance_partition]
+
+if $PROGRAM_NAME == __FILE__
+  spanner_create_instance_partition project_id: ARGV.shift,
+                                    instance_id: ARGV.shift,
+                                    instance_partition_id: ARGV.shift
+end

spanner/spanner_delete_instance_partition.rb

@@ -0,0 +1,40 @@
+# Copyright 2025 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# [START spanner_delete_instance_partition]
+def spanner_delete_instance_partition project_id:, instance_id:, instance_partition_id:
+  # project_id  = "Your Google Cloud project ID"
+  # instance_id = "Your Spanner instance ID"
+  # instance_partition_id = "Your Spanner instance partition ID"
+
+  require "google/cloud/spanner/admin/instance"
+
+  instance_admin_client = Google::Cloud::Spanner::Admin::Instance.instance_admin
+
+  instance_partition_path = instance_admin_client.instance_partition_path \
+    project: project_id,
+    instance: instance_id,
+    instance_partition: instance_partition_id
+
+  instance_admin_client.delete_instance_partition name: instance_partition_path
+
+  puts "Deleted instance partition #{instance_partition_id}"
+end
+# [END spanner_delete_instance_partition]
+
+if $PROGRAM_NAME == __FILE__
+  spanner_delete_instance_partition project_id: ARGV.shift,
+                                    instance_id: ARGV.shift,
+                                    instance_partition_id: ARGV.shift
+end

spanner/spec/spanner_create_instance_partition_spec.rb

@@ -0,0 +1,43 @@
+# Copyright 2025 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+require_relative "../spanner_create_instance_partition"
+require_relative "../spanner_delete_instance_partition"
+require_relative "./spec_helper"
+
+describe "Spanner instance partition" do
+  before :each do
+    @instance_partition_ids = []
+  end
+
+  after :each do
+    @instance_partition_ids.each do |instance_partition_id|
+      spanner_delete_instance_partition project_id: @project_id,
+                                        instance_id: @instance_id,
+                                        instance_partition_id: instance_partition_id
+    end
+  end
+
+  example "Create" do
+    instance_partition_id = "ruby-test-partition-#{SecureRandom.hex(8)}"
+    @instance_partition_ids << instance_partition_id
+    capture do
+      spanner_create_instance_partition project_id: @project_id,
+                                        instance_id: @instance_id,
+                                        instance_partition_id: instance_partition_id
+    end
+    expect(captured_output).to include \
+      "Created instance partition #{instance_partition_id} on instance #{@instance_id}"
+  end
+end