Merge pull request #533 from dcaro/vnet_data_source

New Data Source: `azurerm_virtual_network`

azurerm/data_source_virtual_network.go

@@ -0,0 +1,132 @@
+package azurerm
+
+import (
+	"fmt"
+
+	"github.com/Azure/azure-sdk-for-go/arm/network"
+	"github.com/hashicorp/terraform/helper/schema"
+	"github.com/terraform-providers/terraform-provider-azurerm/azurerm/utils"
+)
+
+func dataSourceArmVirtualNetwork() *schema.Resource {
+	return &schema.Resource{
+		Read: dataSourceArmVnetRead,
+		Schema: map[string]*schema.Schema{
+			"name": {
+				Type:     schema.TypeString,
+				Required: true,
+			},
+
+			"resource_group_name": {
+				Type:     schema.TypeString,
+				Required: true,
+			},
+
+			"address_spaces": {
+				Type:     schema.TypeList,
+				Computed: true,
+				Elem: &schema.Schema{
+					Type: schema.TypeString,
+				},
+			},
+
+			"dns_servers": {
+				Type:     schema.TypeList,
+				Computed: true,
+				Elem: &schema.Schema{
+					Type: schema.TypeString,
+				},
+			},
+
+			"subnets": {
+				Type:     schema.TypeList,
+				Computed: true,
+				Elem: &schema.Schema{
+					Type: schema.TypeString,
+				},
+			},
+
+			"vnet_peerings": {
+				Type:     schema.TypeMap,
+				Computed: true,
+			},
+		},
+	}
+}
+
+func dataSourceArmVnetRead(d *schema.ResourceData, meta interface{}) error {
+	client := meta.(*ArmClient).vnetClient
+
+	resGroup := d.Get("resource_group_name").(string)
+	name := d.Get("name").(string)
+
+	resp, err := client.Get(resGroup, name, "")
+	if err != nil {
+		if utils.ResponseWasNotFound(resp.Response) {
+			return fmt.Errorf("Error making Read request on Azure virtual network %q (resource group %q): %+v", name, resGroup, err)
+		}
+		return err
+	}
+
+	d.SetId(*resp.ID)
+
+	if props := resp.VirtualNetworkPropertiesFormat; props != nil {
+		addressSpaces := flattenVnetAddressPrefixes(props.AddressSpace.AddressPrefixes)
+		if err := d.Set("address_spaces", addressSpaces); err != nil {
+			return err
+		}
+
+		dnsServers := flattenVnetAddressPrefixes(props.DhcpOptions.DNSServers)
+		if err := d.Set("dns_servers", dnsServers); err != nil {
+			return err
+		}
+
+		subnets := flattenVnetSubnetsNames(props.Subnets)
+		if err := d.Set("subnets", subnets); err != nil {
+			return err
+		}
+
+		vnetPeerings := flattenVnetPeerings(props.VirtualNetworkPeerings)
+		if err := d.Set("vnet_peerings", vnetPeerings); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func flattenVnetAddressPrefixes(input *[]string) []interface{} {
+	prefixes := make([]interface{}, 0)
+
+	if myprefixes := input; myprefixes != nil {
+		for _, prefix := range *myprefixes {
+			prefixes = append(prefixes, prefix)
+		}
+	}
+	return prefixes
+}
+
+func flattenVnetSubnetsNames(input *[]network.Subnet) []interface{} {
+	subnets := make([]interface{}, 0)
+
+	if mysubnets := input; mysubnets != nil {
+		for _, subnet := range *mysubnets {
+			subnets = append(subnets, *subnet.Name)
+		}
+	}
+	return subnets
+}
+
+func flattenVnetPeerings(input *[]network.VirtualNetworkPeering) map[string]interface{} {
+	output := make(map[string]interface{}, 0)
+
+	if peerings := input; peerings != nil {
+		for _, vnetpeering := range *peerings {
+			key := *vnetpeering.Name
+			value := *vnetpeering.RemoteVirtualNetwork.ID
+
+			output[key] = value
+
+		}
+	}
+	return output
+}

azurerm/data_source_virtual_network_test.go

@@ -0,0 +1,151 @@
+package azurerm
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/hashicorp/terraform/helper/acctest"
+	"github.com/hashicorp/terraform/helper/resource"
+)
+
+func TestAccDataSourceArmVirtualNetwork_basic(t *testing.T) {
+	dataSourceName := "data.azurerm_virtual_network.test"
+	ri := acctest.RandInt()
+
+	name := fmt.Sprintf("acctestvnet-%d", ri)
+	config := testAccDataSourceArmVirtualNetwork_basic(ri, testLocation())
+
+	resource.Test(t, resource.TestCase{
+		PreCheck:  func() { testAccPreCheck(t) },
+		Providers: testAccProviders,
+		Steps: []resource.TestStep{
+			{
+				Config: config,
+				Check: resource.ComposeTestCheckFunc(
+					resource.TestCheckResourceAttr(dataSourceName, "name", name),
+					resource.TestCheckResourceAttr(dataSourceName, "dns_servers.0", "10.0.0.4"),
+					resource.TestCheckResourceAttr(dataSourceName, "address_spaces.0", "10.0.0.0/16"),
+					resource.TestCheckResourceAttr(dataSourceName, "subnets.0", "subnet1"),
+				),
+			},
+		},
+	})
+}
+
+func TestAccDataSourceArmVirtualNetwork_peering(t *testing.T) {
+	dataSourceName := "data.azurerm_virtual_network.test"
+	ri := acctest.RandInt()
+
+	virtualNetworkName := fmt.Sprintf("acctestvnet-1-%d", ri)
+	location := testLocation()
+
+	resource.Test(t, resource.TestCase{
+		PreCheck:  func() { testAccPreCheck(t) },
+		Providers: testAccProviders,
+		Steps: []resource.TestStep{
+			{
+				Config: testAccDataSourceArmVirtualNetwork_peering(ri, location),
+			},
+			{
+				Config: testAccDataSourceArmVirtualNetwork_peeringWithDataSource(ri, location),
+				Check: resource.ComposeTestCheckFunc(
+					resource.TestCheckResourceAttr(dataSourceName, "name", virtualNetworkName),
+					resource.TestCheckResourceAttr(dataSourceName, "address_spaces.0", "10.0.1.0/24"),
+					resource.TestCheckResourceAttr(dataSourceName, "vnet_peerings.%", "1"),
+				),
+			},
+		},
+	})
+}
+
+func testAccDataSourceArmVirtualNetwork_basic(rInt int, location string) string {
+	return fmt.Sprintf(`
+resource "azurerm_resource_group" "test" {
+  name     = "acctest%d-rg"
+  location = "%s"
+}
+
+resource "azurerm_virtual_network" "test" {
+  name                = "acctestvnet-%d"
+  address_space       = ["10.0.0.0/16"]
+  location            = "${azurerm_resource_group.test.location}"
+  resource_group_name = "${azurerm_resource_group.test.name}"
+  dns_servers         = ["10.0.0.4"]
+
+  subnet {
+    name           = "subnet1"
+    address_prefix = "10.0.1.0/24"
+  }
+}
+
+data "azurerm_virtual_network" "test" {
+  resource_group_name = "${azurerm_resource_group.test.name}"
+  name                = "${azurerm_virtual_network.test.name}"
+}
+	`, rInt, location, rInt)
+}
+
+func testAccDataSourceArmVirtualNetwork_peering(rInt int, location string) string {
+	return fmt.Sprintf(`
+resource "azurerm_resource_group" "test" {
+  name     = "acctest%d-rg"
+  location = "%s"
+}
+
+resource "azurerm_virtual_network" "test1" {
+  name                = "acctestvnet-1-%d"
+  address_space       = ["10.0.1.0/24"]
+  location            = "${azurerm_resource_group.test.location}"
+  resource_group_name = "${azurerm_resource_group.test.name}"
+}
+
+resource "azurerm_virtual_network" "test2" {
+  name                = "acctestvnet-2-%d"
+  address_space       = ["10.0.2.0/24"]
+  location            = "${azurerm_resource_group.test.location}"
+  resource_group_name = "${azurerm_resource_group.test.name}"
+}
+
+resource "azurerm_virtual_network_peering" "test1" {
+  name                      = "peer-1to2"
+  resource_group_name       = "${azurerm_resource_group.test.name}"
+  virtual_network_name      = "${azurerm_virtual_network.test1.name}"
+  remote_virtual_network_id = "${azurerm_virtual_network.test2.id}"
+}
+`, rInt, location, rInt, rInt)
+}
+
+func testAccDataSourceArmVirtualNetwork_peeringWithDataSource(rInt int, location string) string {
+	return fmt.Sprintf(`
+resource "azurerm_resource_group" "test" {
+  name     = "acctest%d-rg"
+  location = "%s"
+}
+
+resource "azurerm_virtual_network" "test1" {
+  name                = "acctestvnet-1-%d"
+  address_space       = ["10.0.1.0/24"]
+  location            = "${azurerm_resource_group.test.location}"
+  resource_group_name = "${azurerm_resource_group.test.name}"
+}
+
+resource "azurerm_virtual_network" "test2" {
+  name                = "acctestvnet-2-%d"
+  address_space       = ["10.0.2.0/24"]
+  location            = "${azurerm_resource_group.test.location}"
+  resource_group_name = "${azurerm_resource_group.test.name}"
+}
+
+resource "azurerm_virtual_network_peering" "test1" {
+  name                      = "peer-1to2"
+  resource_group_name       = "${azurerm_resource_group.test.name}"
+  virtual_network_name      = "${azurerm_virtual_network.test1.name}"
+  remote_virtual_network_id = "${azurerm_virtual_network.test2.id}"
+}
+
+data "azurerm_virtual_network" "test" {
+  resource_group_name = "${azurerm_resource_group.test.name}"
+  name                = "${azurerm_virtual_network.test1.name}"
+}
+`, rInt, location, rInt, rInt)
+}

azurerm/provider.go

@@ -77,6 +77,7 @@ func Provider() terraform.ResourceProvider {
 			"azurerm_snapshot":                dataSourceArmSnapshot(),
 			"azurerm_subnet":                  dataSourceArmSubnet(),
 			"azurerm_subscription":            dataSourceArmSubscription(),
+			"azurerm_virtual_network":         dataSourceArmVirtualNetwork(),
 		},
 
 		ResourcesMap: map[string]*schema.Resource{

website/docs/d/virtual_network.html.markdown

@@ -0,0 +1,37 @@
+---
+layout: "azurerm"
+page_title: "Azure Resource Manager: azurerm_virtual_network"
+sidebar_current: "docs-azurerm-datasource-virtual-network"
+description: |-
+  Get information about the specified Virtual Network.
+---
+
+# azurerm_virtual_network
+
+Use this data source to access the properties of an Azure Virtual Network.
+
+## Example Usage
+
+```hcl
+data "azurerm_virtual_network" "test" {
+  name                 = "production"
+  resource_group_name  = "networking"
+}
+
+output "virtual_network_id" {
+  value = "${data.azurerm_virtual_network.test.id}"
+}
+```
+
+## Argument Reference
+
+* `name` - (Required) Specifies the name of the Virtual Network.
+* `resource_group_name` - (Required) Specifies the name of the resource group the Virtual Network is located in.
+
+## Attributes Reference
+
+* `id` - The ID of the virtual network.
+* `address_spaces` - The list of address spaces used by the virtual network.
+* `dns_servers` - The list of DNS servers used by the virtual network.
+* `subnets` - The list of name of the subnets that are attached to this virtual network.
+* `vnet_peerings` - A mapping of name - virtual network id of the virtual network peerings.