provider/openstack: Add openstack_networking_network_v2 datasource (#12304)

builtin/providers/openstack/data_source_openstack_networking_network_v2.go

@@ -0,0 +1,112 @@
+package openstack
+
+import (
+	"fmt"
+	"log"
+	"strconv"
+
+	"github.com/hashicorp/terraform/helper/schema"
+
+	"github.com/gophercloud/gophercloud"
+	"github.com/gophercloud/gophercloud/openstack/networking/v2/networks"
+	"github.com/gophercloud/gophercloud/openstack/networking/v2/subnets"
+)
+
+func dataSourceNetworkingNetworkV2() *schema.Resource {
+	return &schema.Resource{
+		Read: dataSourceNetworkingNetworkV2Read,
+
+		Schema: map[string]*schema.Schema{
+			"name": &schema.Schema{
+				Type:     schema.TypeString,
+				Optional: true,
+			},
+			"matching_subnet_cidr": &schema.Schema{
+				Type:     schema.TypeString,
+				Optional: true,
+			},
+			"region": &schema.Schema{
+				Type:        schema.TypeString,
+				Required:    true,
+				DefaultFunc: schema.EnvDefaultFunc("OS_REGION_NAME", ""),
+			},
+			"tenant_id": &schema.Schema{
+				Type:     schema.TypeString,
+				Optional: true,
+				DefaultFunc: schema.MultiEnvDefaultFunc([]string{
+					"OS_TENANT_ID",
+					"OS_PROJECT_ID",
+				}, ""),
+				Description: descriptions["tenant_id"],
+			},
+			"admin_state_up": &schema.Schema{
+				Type:     schema.TypeString,
+				Computed: true,
+			},
+			"shared": &schema.Schema{
+				Type:     schema.TypeString,
+				Computed: true,
+			},
+		},
+	}
+}
+
+func dataSourceNetworkingNetworkV2Read(d *schema.ResourceData, meta interface{}) error {
+	config := meta.(*Config)
+	networkingClient, err := config.networkingV2Client(GetRegion(d))
+
+	listOpts := networks.ListOpts{
+		Name:     d.Get("name").(string),
+		TenantID: d.Get("tenant_id").(string),
+		Status:   "ACTIVE",
+	}
+
+	pages, err := networks.List(networkingClient, listOpts).AllPages()
+	allNetworks, err := networks.ExtractNetworks(pages)
+	if err != nil {
+		return fmt.Errorf("Unable to retrieve networks: %s", err)
+	}
+
+	var refinedNetworks []networks.Network
+	if cidr := d.Get("matching_subnet_cidr").(string); cidr != "" {
+		for _, n := range allNetworks {
+			for _, s := range n.Subnets {
+				subnet, err := subnets.Get(networkingClient, s).Extract()
+				if err != nil {
+					if _, ok := err.(gophercloud.ErrDefault404); ok {
+						continue
+					}
+					return fmt.Errorf("Unable to retrieve network subnet: %s", err)
+				}
+				if cidr == subnet.CIDR {
+					refinedNetworks = append(refinedNetworks, n)
+				}
+			}
+		}
+	} else {
+		refinedNetworks = allNetworks
+	}
+
+	if len(refinedNetworks) < 1 {
+		return fmt.Errorf("Your query returned no results. " +
+			"Please change your search criteria and try again.")
+	}
+
+	if len(refinedNetworks) > 1 {
+		return fmt.Errorf("Your query returned more than one result." +
+			" Please try a more specific search criteria")
+	}
+
+	network := refinedNetworks[0]
+
+	log.Printf("[DEBUG] Retrieved Network %s: %+v", network.ID, network)
+	d.SetId(network.ID)
+
+	d.Set("name", network.Name)
+	d.Set("admin_state_up", strconv.FormatBool(network.AdminStateUp))
+	d.Set("shared", strconv.FormatBool(network.Shared))
+	d.Set("tenant_id", network.TenantID)
+	d.Set("region", GetRegion(d))
+
+	return nil
+}

builtin/providers/openstack/data_source_openstack_networking_network_v2_test.go

@@ -0,0 +1,98 @@
+package openstack
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/hashicorp/terraform/helper/resource"
+	"github.com/hashicorp/terraform/terraform"
+)
+
+func TestAccOpenStackNetworkingNetworkV2DataSource_basic(t *testing.T) {
+	resource.Test(t, resource.TestCase{
+		PreCheck:  func() { testAccPreCheck(t) },
+		Providers: testAccProviders,
+		Steps: []resource.TestStep{
+			resource.TestStep{
+				Config: testAccOpenStackNetworkingNetworkV2DataSource_network,
+			},
+			resource.TestStep{
+				Config: testAccOpenStackNetworkingNetworkV2DataSource_basic,
+				Check: resource.ComposeTestCheckFunc(
+					testAccCheckNetworkingNetworkV2DataSourceID("data.openstack_networking_network_v2.net"),
+					resource.TestCheckResourceAttr(
+						"data.openstack_networking_network_v2.net", "name", "tf_test_network"),
+					resource.TestCheckResourceAttr(
+						"data.openstack_networking_network_v2.net", "admin_state_up", "true"),
+				),
+			},
+		},
+	})
+}
+
+func TestAccOpenStackNetworkingNetworkV2DataSource_subnet(t *testing.T) {
+	resource.Test(t, resource.TestCase{
+		PreCheck:  func() { testAccPreCheck(t) },
+		Providers: testAccProviders,
+		Steps: []resource.TestStep{
+			resource.TestStep{
+				Config: testAccOpenStackNetworkingNetworkV2DataSource_network,
+			},
+			resource.TestStep{
+				Config: testAccOpenStackNetworkingNetworkV2DataSource_subnet,
+				Check: resource.ComposeTestCheckFunc(
+					testAccCheckNetworkingNetworkV2DataSourceID("data.openstack_networking_network_v2.net"),
+					resource.TestCheckResourceAttr(
+						"data.openstack_networking_network_v2.net", "name", "tf_test_network"),
+					resource.TestCheckResourceAttr(
+						"data.openstack_networking_network_v2.net", "admin_state_up", "true"),
+				),
+			},
+		},
+	})
+}
+
+func testAccCheckNetworkingNetworkV2DataSourceID(n string) resource.TestCheckFunc {
+	return func(s *terraform.State) error {
+		rs, ok := s.RootModule().Resources[n]
+		if !ok {
+			return fmt.Errorf("Can't find network data source: %s", n)
+		}
+
+		if rs.Primary.ID == "" {
+			return fmt.Errorf("Network data source ID not set")
+		}
+
+		return nil
+	}
+}
+
+const testAccOpenStackNetworkingNetworkV2DataSource_network = `
+resource "openstack_networking_network_v2" "net" {
+        name = "tf_test_network"
+        admin_state_up = "true"
+}
+
+resource "openstack_networking_subnet_v2" "subnet" {
+  name = "tf_test_subnet"
+  cidr = "192.168.199.0/24"
+  no_gateway = true
+  network_id = "${openstack_networking_network_v2.net.id}"
+}
+`
+
+var testAccOpenStackNetworkingNetworkV2DataSource_basic = fmt.Sprintf(`
+%s
+
+data "openstack_networking_network_v2" "net" {
+	name = "${openstack_networking_network_v2.net.name}"
+}
+`, testAccOpenStackNetworkingNetworkV2DataSource_network)
+
+var testAccOpenStackNetworkingNetworkV2DataSource_subnet = fmt.Sprintf(`
+%s
+
+data "openstack_networking_network_v2" "net" {
+	matching_subnet_cidr = "${openstack_networking_subnet_v2.subnet.cidr}"
+}
+`, testAccOpenStackNetworkingNetworkV2DataSource_network)

builtin/providers/openstack/provider.go

@@ -136,6 +136,7 @@ func Provider() terraform.ResourceProvider {
 
 		DataSourcesMap: map[string]*schema.Resource{
 			"openstack_images_image_v2":       dataSourceImagesImageV2(),
+			"openstack_networking_network_v2": dataSourceNetworkingNetworkV2(),
 		},
 
 		ResourcesMap: map[string]*schema.Resource{

website/source/docs/providers/openstack/d/networking_network_v2.html.markdown

@@ -0,0 +1,42 @@
+---
+layout: "openstack"
+page_title: "OpenStack: openstack_networking_network_v2"
+sidebar_current: "docs-openstack-datasource-networking-network-v2"
+description: |-
+  Get information on an OpenStack Network.
+---
+
+# openstack\_networking\_network\_v2
+
+Use this data source to get the ID of an available OpenStack network.
+
+## Example Usage
+
+```
+data "openstack_networking_network_v2" "network" {
+  name = "tf_test_network"
+}
+```
+
+## Argument Reference
+
+* `region` - (Required) The region in which to obtain the V2 Neutron client.
+  A Neutron client is needed to retrieve networks ids. If omitted, the
+  `OS_REGION_NAME` environment variable is used.
+
+* `name` - (Optional) The name of the network.
+
+* `matching_subnet_cidr` - (Optional) The CIDR of a subnet within the network.
+
+* `tenant_id` - (Optional) The owner of the network.
+
+## Attributes Reference
+
+`id` is set to the ID of the found network. In addition, the following attributes
+are exported:
+
+* `admin_state_up` - (Optional) The administrative state of the network.
+* `name` - See Argument Reference above.
+* `region` - See Argument Reference above.
+* `shared` - (Optional)  Specifies whether the network resource can be accessed
+    by any tenant or not.

website/source/layouts/openstack.erb

@@ -16,6 +16,9 @@
             <li<%= sidebar_current("docs-openstack-datasource-images-image-v2") %>>
               <a href="/docs/providers/openstack/d/images_image_v2.html">openstack_images_image_v2</a>
             </li>
+            <li<%= sidebar_current("docs-openstack-datasource-networking-network-v2") %>>
+              <a href="/docs/providers/openstack/d/networking_network_v2.html">openstack_networking_network_v2</a>
+            </li>
           </ul>
         </li>