Fix path_matcher in region url maps

.changelog/4298.txt

@@ -0,0 +1,3 @@
+```release-note:bug
+google_compute_region_url_map: removed requirement for default_service, as it should be a choice of default_service or default_url_redirect
+```

google-beta/resource_compute_region_url_map.go

@@ -159,20 +159,20 @@ you create the resource.`,
 				Description: `The list of named PathMatchers to use against the URL.`,
 				Elem: &schema.Resource{
 					Schema: map[string]*schema.Schema{
+						"name": {
+							Type:        schema.TypeString,
+							Required:    true,
+							Description: `The name to which this PathMatcher is referred by the HostRule.`,
+						},
 						"default_service": {
 							Type:             schema.TypeString,
-							Required:         true,
+							Optional:         true,
 							DiffSuppressFunc: compareSelfLinkOrResourceName,
 							Description: `A reference to a RegionBackendService resource. This will be used if
 none of the pathRules defined by this PathMatcher is matched by
 the URL's path portion.`,
 							ExactlyOneOf: []string{},
 						},
-						"name": {
-							Type:        schema.TypeString,
-							Required:    true,
-							Description: `The name to which this PathMatcher is referred by the HostRule.`,
-						},
 						"default_url_redirect": {
 							Type:     schema.TypeList,
 							Optional: true,

google-beta/resource_compute_region_url_map_test.go

@@ -179,6 +179,28 @@ func TestAccComputeRegionUrlMap_defaultUrlRedirect(t *testing.T) {
 	})
 }
 
+func TestAccComputeRegionUrlMap_defaultUrlRedirectWithinPathMatcher(t *testing.T) {
+	t.Parallel()
+
+	randomSuffix := randString(t, 10)
+
+	vcrTest(t, resource.TestCase{
+		PreCheck:     func() { testAccPreCheck(t) },
+		Providers:    testAccProviders,
+		CheckDestroy: testAccCheckComputeUrlMapDestroyProducer(t),
+		Steps: []resource.TestStep{
+			{
+				Config: testAccComputeRegionUrlMap_defaultUrlRedirectWithinPathMatcherConfig(randomSuffix),
+			},
+			{
+				ResourceName:      "google_compute_region_url_map.foobar",
+				ImportState:       true,
+				ImportStateVerify: true,
+			},
+		},
+	})
+}
+
 func testAccComputeRegionUrlMap_basic1(randomSuffix string) string {
 	return fmt.Sprintf(`
 resource "google_compute_region_backend_service" "foobar" {
@@ -853,3 +875,27 @@ resource "google_compute_region_url_map" "foobar" {
 }
 `, randomSuffix)
 }
+
+func testAccComputeRegionUrlMap_defaultUrlRedirectWithinPathMatcherConfig(randomSuffix string) string {
+	return fmt.Sprintf(`
+resource "google_compute_region_url_map" "foobar" {
+  name            = "urlmap-test-%s"
+  default_url_redirect {
+    https_redirect = true
+    strip_query    = false
+  }
+  host_rule {
+    hosts        = ["mysite.com"]
+    path_matcher = "allpaths"
+  }
+
+  path_matcher {
+    name             = "allpaths"
+    default_url_redirect {
+      https_redirect = true
+      strip_query    = false
+    }
+  }
+}
+`, randomSuffix)
+}

website/docs/r/compute_region_url_map.html.markdown

@@ -542,7 +542,7 @@ The `host_rule` block supports:
 The `path_matcher` block supports:
 
 * `default_service` -
-  (Required)
+  (Optional)
   A reference to a RegionBackendService resource. This will be used if
   none of the pathRules defined by this PathMatcher is matched by
   the URL's path portion.