Allow setting ip_address of bgp router peer

.changelog/5098.txt

@@ -0,0 +1,3 @@
+```release-note:enhancement
+compute: allowed setting `ip_address` field of `google_compute_router_peer`
+```

google-beta/resource_compute_router_bgp_peer_test.go

@@ -315,6 +315,7 @@ resource "google_compute_router_peer" "foobar" {
   name                      = "%s"
   router                    = google_compute_router.foobar.name
   region                    = google_compute_router.foobar.region
+  ip_address                = "169.254.3.1"
   peer_ip_address           = "169.254.3.2"
   peer_asn                  = 65515
   advertised_route_priority = 100

google-beta/resource_compute_router_peer.go

@@ -149,6 +149,13 @@ If set to true, the peer connection can be established with routing information.
 The default is true.`,
 				Default: true,
 			},
+			"ip_address": {
+				Type:     schema.TypeString,
+				Computed: true,
+				Optional: true,
+				Description: `IP address of the interface inside Google Cloud Platform.
+Only IPv4 is supported.`,
+			},
 			"region": {
 				Type:             schema.TypeString,
 				Computed:         true,
@@ -157,12 +164,6 @@ The default is true.`,
 				DiffSuppressFunc: compareSelfLinkOrResourceName,
 				Description: `Region where the router and BgpPeer reside.
 If it is not provided, the provider region is used.`,
-			},
-			"ip_address": {
-				Type:     schema.TypeString,
-				Computed: true,
-				Description: `IP address of the interface inside Google Cloud Platform.
-Only IPv4 is supported.`,
 			},
 			"management_type": {
 				Type:     schema.TypeString,
@@ -209,6 +210,12 @@ func resourceComputeRouterBgpPeerCreate(d *schema.ResourceData, meta interface{}
 	} else if v, ok := d.GetOkExists("interface"); !isEmptyValue(reflect.ValueOf(interfaceNameProp)) && (ok || !reflect.DeepEqual(v, interfaceNameProp)) {
 		obj["interfaceName"] = interfaceNameProp
 	}
+	ipAddressProp, err := expandNestedComputeRouterBgpPeerIpAddress(d.Get("ip_address"), d, config)
+	if err != nil {
+		return err
+	} else if v, ok := d.GetOkExists("ip_address"); !isEmptyValue(reflect.ValueOf(ipAddressProp)) && (ok || !reflect.DeepEqual(v, ipAddressProp)) {
+		obj["ipAddress"] = ipAddressProp
+	}
 	peerIpAddressProp, err := expandNestedComputeRouterBgpPeerPeerIpAddress(d.Get("peer_ip_address"), d, config)
 	if err != nil {
 		return err
@@ -409,6 +416,12 @@ func resourceComputeRouterBgpPeerUpdate(d *schema.ResourceData, meta interface{}
 	billingProject = project
 
 	obj := make(map[string]interface{})
+	ipAddressProp, err := expandNestedComputeRouterBgpPeerIpAddress(d.Get("ip_address"), d, config)
+	if err != nil {
+		return err
+	} else if v, ok := d.GetOkExists("ip_address"); !isEmptyValue(reflect.ValueOf(v)) && (ok || !reflect.DeepEqual(v, ipAddressProp)) {
+		obj["ipAddress"] = ipAddressProp
+	}
 	peerIpAddressProp, err := expandNestedComputeRouterBgpPeerPeerIpAddress(d.Get("peer_ip_address"), d, config)
 	if err != nil {
 		return err
@@ -683,6 +696,10 @@ func expandNestedComputeRouterBgpPeerInterface(v interface{}, d TerraformResourc
 	return v, nil
 }
 
+func expandNestedComputeRouterBgpPeerIpAddress(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
+	return v, nil
+}
+
 func expandNestedComputeRouterBgpPeerPeerIpAddress(v interface{}, d TerraformResourceData, config *Config) (interface{}, error) {
 	return v, nil
 }

google-beta/resource_gke_hub_feature_membership_test.go

@@ -5,7 +5,7 @@ import (
 	"fmt"
 	"testing"
 
-	dcl "github.com/GoogleCloudPlatform/declarative-resource-client-library/dcl"
+	"github.com/GoogleCloudPlatform/declarative-resource-client-library/dcl"
 	gkehub "github.com/GoogleCloudPlatform/declarative-resource-client-library/services/google/gkehub/beta"
 	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/resource"
 	"github.com/hashicorp/terraform-plugin-sdk/v2/terraform"

website/docs/r/compute_router_peer.html.markdown

@@ -101,6 +101,11 @@ The following arguments are supported:
 - - -
 
 
+* `ip_address` -
+  (Optional)
+  IP address of the interface inside Google Cloud Platform.
+  Only IPv4 is supported.
+
 * `advertised_route_priority` -
   (Optional)
   The priority of routes advertised to this BGP peer.
@@ -169,10 +174,6 @@ In addition to the arguments listed above, the following computed attributes are
 
 * `id` - an identifier for the resource with format `projects/{{project}}/regions/{{region}}/routers/{{router}}/{{name}}`
 
-* `ip_address` -
-  IP address of the interface inside Google Cloud Platform.
-  Only IPv4 is supported.
-
 * `management_type` -
   The resource that configures and manages this BGP peer.
   * `MANAGED_BY_USER` is the default value and can be managed by