Support cloud sql private ip (incorporating previous PR feedback)

google-beta/resource_sql_database_instance.go

@@ -16,6 +16,8 @@ import (
 	"google.golang.org/api/sqladmin/v1beta4"
 )
 
+const privateNetworkLinkRegex = "projects/(" + ProjectRegex + ")/global/networks/((?:[a-z](?:[-a-z0-9]*[a-z0-9])?))$"
+
 var sqlDatabaseAuthorizedNetWorkSchemaElem *schema.Resource = &schema.Resource{
 	Schema: map[string]*schema.Schema{
 		"expiration_time": &schema.Schema{
@@ -180,6 +182,12 @@ func resourceSqlDatabaseInstance() *schema.Resource {
 										Type:     schema.TypeBool,
 										Optional: true,
 									},
+									"private_network": &schema.Schema{
+										Type:             schema.TypeString,
+										Optional:         true,
+										ValidateFunc:     validateRegexp(privateNetworkLinkRegex),
+										DiffSuppressFunc: compareSelfLinkRelativePaths,
+									},
 								},
 							},
 						},
@@ -265,6 +273,10 @@ func resourceSqlDatabaseInstance() *schema.Resource {
 							Type:     schema.TypeString,
 							Computed: true,
 						},
+						"type": &schema.Schema{
+							Type:     schema.TypeString,
+							Computed: true,
+						},
 						"time_to_retire": &schema.Schema{
 							Type:     schema.TypeString,
 							Optional: true,
@@ -614,10 +626,13 @@ func expandIpConfiguration(configured []interface{}) *sqladmin.IpConfiguration {
 	}
 
 	_ipConfiguration := configured[0].(map[string]interface{})
+
 	return &sqladmin.IpConfiguration{
 		Ipv4Enabled:        _ipConfiguration["ipv4_enabled"].(bool),
 		RequireSsl:         _ipConfiguration["require_ssl"].(bool),
+		PrivateNetwork:     _ipConfiguration["private_network"].(string),
 		AuthorizedNetworks: expandAuthorizedNetworks(_ipConfiguration["authorized_networks"].(*schema.Set).List()),
+		ForceSendFields:    []string{"Ipv4Enabled"},
 	}
 }
 func expandAuthorizedNetworks(configured []interface{}) []*sqladmin.AclEntry {
@@ -696,7 +711,6 @@ func resourceSqlDatabaseInstanceRead(d *schema.ResourceData, meta interface{}) e
 	if err := d.Set("replica_configuration", flattenReplicaConfiguration(instance.ReplicaConfiguration, d)); err != nil {
 		log.Printf("[WARN] Failed to set SQL Database Instance Replica Configuration")
 	}
-
 	ipAddresses := flattenIpAddresses(instance.IpAddresses)
 	if err := d.Set("ip_address", ipAddresses); err != nil {
 		log.Printf("[WARN] Failed to set SQL Database Instance IP Addresses")
@@ -870,8 +884,9 @@ func flattenDatabaseFlags(databaseFlags []*sqladmin.DatabaseFlags) []map[string]
 
 func flattenIpConfiguration(ipConfiguration *sqladmin.IpConfiguration) interface{} {
 	data := map[string]interface{}{
-		"ipv4_enabled": ipConfiguration.Ipv4Enabled,
-		"require_ssl":  ipConfiguration.RequireSsl,
+		"ipv4_enabled":    ipConfiguration.Ipv4Enabled,
+		"private_network": ipConfiguration.PrivateNetwork,
+		"require_ssl":     ipConfiguration.RequireSsl,
 	}
 
 	if ipConfiguration.AuthorizedNetworks != nil {
@@ -950,6 +965,7 @@ func flattenIpAddresses(ipAddresses []*sqladmin.IpMapping) []map[string]interfac
 	for _, ip := range ipAddresses {
 		data := map[string]interface{}{
 			"ip_address":     ip.IpAddress,
+			"type":           ip.Type,
 			"time_to_retire": ip.TimeToRetire,
 		}
 

google-beta/resource_sql_database_instance_test.go

@@ -594,6 +594,30 @@ func TestAccSqlDatabaseInstance_basic_with_user_labels(t *testing.T) {
 	})
 }
 
+func TestAccSqlDatabaseInstance_withPrivateNetwork(t *testing.T) {
+	t.Parallel()
+
+	databaseName := "tf-test-" + acctest.RandString(10)
+	networkName := "tf-test-" + acctest.RandString(10)
+	addressName := "tf-test-" + acctest.RandString(10)
+
+	resource.Test(t, resource.TestCase{
+		PreCheck:     func() { testAccPreCheck(t) },
+		Providers:    testAccProviders,
+		CheckDestroy: testAccSqlDatabaseInstanceDestroy,
+		Steps: []resource.TestStep{
+			resource.TestStep{
+				Config: testAccSqlDatabaseInstance_withPrivateNetwork(databaseName, networkName, addressName),
+			},
+			resource.TestStep{
+				ResourceName:      "google_sql_database_instance.instance",
+				ImportState:       true,
+				ImportStateVerify: true,
+			},
+		},
+	})
+}
+
 func testAccSqlDatabaseInstanceDestroy(s *terraform.State) error {
 	for _, rs := range s.RootModule().Resources {
 		config := testAccProvider.Meta().(*Config)
@@ -714,6 +738,42 @@ resource "google_sql_database_instance" "instance-failover" {
 `, instanceName, failoverName)
 }
 
+func testAccSqlDatabaseInstance_withPrivateNetwork(databaseName, networkName, addressRangeName string) string {
+	return fmt.Sprintf(`
+resource "google_compute_network" "foobar" {
+	name       = "%s"
+	auto_create_subnetworks = false
+}
+
+resource "google_compute_global_address" "foobar" {
+	name          = "%s"
+	purpose       = "VPC_PEERING"
+	address_type = "INTERNAL"
+	prefix_length = 16
+	network       = "${google_compute_network.foobar.self_link}"
+}
+
+resource "google_service_networking_connection" "foobar" {
+	network       = "${google_compute_network.foobar.self_link}"
+	service       = "servicenetworking.googleapis.com"
+	reserved_peering_ranges = ["${google_compute_global_address.foobar.name}"]
+}
+
+resource "google_sql_database_instance" "instance" {
+	depends_on = ["google_service_networking_connection.foobar"]
+	name = "%s"
+	region = "us-central1"
+	settings {
+		tier = "db-f1-micro"
+		ip_configuration {
+			ipv4_enabled = "false"
+			private_network = "${google_compute_network.foobar.self_link}"
+		}
+	}
+}
+`, networkName, addressRangeName, databaseName)
+}
+
 var testGoogleSqlDatabaseInstance_settings = `
 resource "google_sql_database_instance" "instance" {
 	name = "tf-lw-%d"

website/docs/r/sql_database_instance.html.markdown

@@ -108,6 +108,42 @@ resource "google_sql_database_instance" "postgres" {
 }
 ```
 
+### Private IP Instance
+
+
+```hcl
+resource "google_compute_network" "private_network" {
+	name       = "private_network"
+}
+
+resource "google_compute_global_address" "private_ip_address" {
+	name          = "private_ip_address"
+	purpose       = "VPC_PEERING"
+	address_type = "INTERNAL"
+	prefix_length = 16
+	network       = "${google_compute_network.private_network.self_link}"
+}
+
+resource "google_service_networking_connection" "private_vpc_connection" {
+	network       = "${google_compute_network.private_network.self_link}"
+	service       = "servicenetworking.googleapis.com"
+	reserved_peering_ranges = ["${google_compute_global_address.private_ip_address.name}"]
+}
+
+resource "google_sql_database_instance" "instance" {
+	depends_on = ["google_service_networking_connection.private_vpc_connection"]
+	name = "private_instance"
+	region = "us-central1"
+	settings {
+		tier = "db-f1-micro"
+		ip_configuration {
+			ipv4_enabled = "false"
+			private_network = "${google_compute_network.private_network.self_link}"
+		}
+	}
+}
+```
+
 ## Argument Reference
 
 The following arguments are supported:
@@ -205,6 +241,8 @@ The optional `settings.ip_configuration` subblock supports:
 * `require_ssl` - (Optional) True if mysqld should default to `REQUIRE X509`
     for users connecting over IP.
 
+* `private_network` - (Optional) The resource link for the VPC network from which the Cloud SQL instance is accessible for private IP.
+
 The optional `settings.ip_configuration.authorized_networks[]` sublist supports:
 
 * `expiration_time` - (Optional) The [RFC 3339](https://tools.ietf.org/html/rfc3339)
@@ -286,6 +324,8 @@ when the resource is configured with a `count`.
 * `ip_address.0.time_to_retire` - The time this IP address will be retired, in RFC
     3339 format.
 
+* `ip_address.0.type` - The type of this IP address. A PRIMARY address is an address that can accept incoming connections. An OUTGOING address is the source address of connections originating from the instance, if supported. A PRIVATE address is an address for an instance which has been configured to use private networking see: [Private IP](https://cloud.google.com/sql/docs/mysql/private-ip).
+
 * `self_link` - The URI of the created resource.
 
 * `settings.version` - Used to make sure changes to the `settings` block are