datasource/cloudflare_zones: support filtering by account_id

.changelog/1401.txt

@@ -0,0 +1,3 @@
+```release-note:enhancement
+datasource/cloudflare_zones: allow filtering by account_id
+```

cloudflare/data_source_zones.go

@@ -22,6 +22,10 @@ func dataSourceCloudflareZones() *schema.Resource {
 				MaxItems: 1,
 				Elem: &schema.Resource{
 					Schema: map[string]*schema.Schema{
+						"account_id": {
+							Type:     schema.TypeString,
+							Optional: true,
+						},
 						"name": {
 							Type:     schema.TypeString,
 							Optional: true,
@@ -83,7 +87,7 @@ func dataSourceCloudflareZonesRead(d *schema.ResourceData, meta interface{}) err
 
 	zoneFilter := cloudflare.WithZoneFilters(
 		zoneLookupValue,
-		"",
+		filter.accountID,
 		filter.status,
 	)
 
@@ -156,10 +160,16 @@ func expandFilter(d interface{}) (*searchFilter, error) {
 		filter.status = status.(string)
 	}
 
+	accountID, ok := m["account_id"]
+	if ok {
+		filter.accountID = accountID.(string)
+	}
+
 	return filter, nil
 }
 
 type searchFilter struct {
+	accountID  string
 	name       string
 	regexValue *regexp.Regexp
 	lookupType string

website/docs/d/zones.html.md

@@ -55,6 +55,16 @@ data "cloudflare_zones" "example" {
 }
 ```
 
+```hcl
+# Look for all active zones in an account
+data "cloudflare_zones" "example" {
+  filter {
+    account_id = "1d5fdc9e88c8a8c4518b068cd94331fe"
+    status     = "active"
+  }
+}
+```
+
 ### Example usage with other resources
 
 The example below matches all zones which have "example" in their value, end
@@ -99,6 +109,7 @@ values must match in order to be included, see below for full list.
 
 **filter**
 
+- `account_id` - (Optional) Only search for zones in this account.
 - `name` - (Optional) A string value to search for.
 - `lookup_type` - (Optional) The type of search to perform for the `name` value
   when querying the zone API. Valid values: `"exact"` and `"contains"`. Defaults