Add Spanner instance datasource

third_party/terraform/data_sources/data_source_spanner_instance.go

@@ -0,0 +1,25 @@
+package google
+
+import (
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
+)
+
+func dataSourceSpannerInstance() *schema.Resource {
+
+	dsSchema := (resourceSpannerInstance().Schema)
+	addRequiredFieldsToSchema(dsSchema, "name")
+	addOptionalFieldsToSchema(dsSchema, "config")
+	addOptionalFieldsToSchema(dsSchema, "display_name")
+	addOptionalFieldsToSchema(dsSchema, "project")
+
+	return &schema.Resource{
+		Read:   dataSourceSpannerInstanceRead,
+		Schema: dsSchema,
+	}
+}
+
+func dataSourceSpannerInstanceRead(d *schema.ResourceData, meta interface{}) error {
+
+	return resourceSpannerInstanceRead(d, meta)
+
+}

third_party/terraform/tests/data_source_spanner_instance_test.go

@@ -0,0 +1,46 @@
+package google
+
+import (
+	"testing"
+
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/resource"
+)
+
+func TestAccDataSourceSpannerInstance_basic(t *testing.T) {
+	t.Parallel()
+
+	context := map[string]interface{}{
+		"random_suffix": randString(t, 10),
+	}
+
+	vcrTest(t, resource.TestCase{
+		PreCheck:     func() { testAccPreCheck(t) },
+		Providers:    testAccProviders,
+		CheckDestroy: testAccCheckSpannerInstanceDestroyProducer(t),
+		Steps: []resource.TestStep{
+			{
+				Config: testAccDataSourceSpannerInstanceBasic(context),
+				Check: resource.ComposeTestCheckFunc(
+					checkDataSourceStateMatchesResourceState("data.google_spanner_instance.foo", "google_spanner_instance.bar"),
+				),
+			},
+		},
+	})
+}
+
+func testAccDataSourceSpannerInstanceBasic(context map[string]interface{}) string {
+	return Nprintf(`
+resource "google_spanner_instance" "bar" {
+	config       = "regional-us-central1"
+	display_name = "Test Spanner Instance"
+	num_nodes    = 2
+	labels = {
+		"foo" = "bar"
+	}
+}
+
+data "google_spanner_instance" "foo" {
+    name = google_spanner_instance.bar.name
+}
+`, context)
+}

third_party/terraform/utils/provider.go.erb

@@ -235,6 +235,7 @@ func Provider() *schema.Provider {
 			"google_service_account_access_token":              dataSourceGoogleServiceAccountAccessToken(),
 			"google_service_account_id_token":                  dataSourceGoogleServiceAccountIdToken(),
 			"google_service_account_key":                       dataSourceGoogleServiceAccountKey(),
+			"google_spanner_instance":                          dataSourceSpannerInstance(),
 			"google_sql_ca_certs":                              dataSourceGoogleSQLCaCerts(),
 			"google_sql_database_instance":                     dataSourceSqlDatabaseInstance(),
 			"google_storage_bucket_object":                     dataSourceGoogleStorageBucketObject(),

third_party/terraform/website/docs/d/spanner_instance.html.markdown

@@ -0,0 +1,34 @@
+---
+subcategory: "Cloud Spanner"
+layout: "google"
+page_title: "Google: google_compute_global_forwarding_rule"
+sidebar_current: "docs-google-datasource-spanner-instance"
+description: |-
+  Get a spanner instance from Google Cloud
+---
+
+# google\_compute\_global_\forwarding\_rule
+
+Get a spanner instance from Google Cloud by its name.
+
+## Example Usage
+
+```tf
+data "google_spanner_instance" "foo" {
+  name = "bar"
+}
+```
+
+## Argument Reference
+
+The following arguments are supported:
+
+* `name` - (Required) The name of the spanner instance.
+
+- - -
+
+* `project` - (Optional) The project in which the resource belongs. If it
+    is not provided, the provider project is used.
+
+## Attributes Reference
+See [google_spanner_instance](https://www.terraform.io/docs/providers/google/r/spanner_instance.html) resource for details of all the available attributes.