feat(iot): add hub devices support (#508)

Co-authored-by: Clément Decoodt <[email protected]>

Author: Lichard Torman

docs/resources/iot_device.md

@@ -0,0 +1,80 @@
+---
+layout: "scaleway"
+page_title: "Scaleway: scaleway_iot_hub_device"
+description: |-
+  Manages Scaleway IoT Hub device.
+---
+
+# scaleway_iot_hub_device
+
+-> **Note:** This terraform resource is currently in beta and might include breaking change in future releases.
+
+Creates and manages Scaleway IoT Hub Instances. For more information, see [the documentation](https://developers.scaleway.com/en/products/iot/api).
+
+## Examples
+
+### Basic
+
+```hcl
+resource scaleway_iot_hub main {
+    name         = "test-iot"
+    product_plan = "plan_shared"
+}
+
+resource scaleway_iot_hub_device main {
+    hub_id = scaleway_iot_hub.main.id
+    name   = "test-iot"
+}
+```
+
+## Arguments Reference
+
+The following arguments are supported:
+
+- `hub_id` - (Required) The ID of the hub on which this device will be created.
+
+- `name` - (Required) The name of the IoT device you want to create (e.g. `my-device`).
+
+~> **Important:** Updates to `name` will destroy and recreate a new resource.
+
+- `description` - (Optional) The description of the IoT device (e.g. `living room`).
+
+- `allow_insecure` - (Optional) Allow plain and server-authenticated TLS connections in addition to mutually-authenticated ones.
+
+~> **Important:** Updates to `allow_insecure` can disconnect eventually connected devices.
+
+- `allow_multiple_connections` - (Optional) Allow more than one simultaneous connection using the same device credentials.
+
+~> **Important:** Updates to `allow_multiple_connections` can disconnect eventually connected devices.
+
+- `message_filters` - (Optional) Rules that define which messages are authorized or denied based on their topic.
+    - `publish` - (Optional) Rules used to restrict topics the device can publish to.
+        - `policy` (Optional) Filtering policy (eg `accept` or `reject`)
+        - `topics` (Optional) List of topics to match (eg `foo/bar/+/baz/#`)
+    - `subscribe` - (Optional) Rules used to restrict topics the device can subscribe to.
+        - `policy` (Optional) Same as publish rules.
+        - `topics` (Optional) Same as publish rules.
+
+
+## Attributes Reference
+
+In addition to all arguments above, the following attributes are exported:
+
+- `id` - The ID of the device.
+- `created_at` - The date and time the device was created.
+- `updated_at` - The date and time the device resource was updated.
+- `certificate` - The certificate bundle of the device.
+    - `crt` - The certificate of the device.
+    - `key` - The private key of the device.
+- `status` - The current status of the device.
+- `last_activity_at` - The last MQTT activity of the device.
+- `is_connected` - The current connection status of the device.
+
+
+## Import
+
+IoT devices can be imported using the `{region}/{id}`, e.g.
+
+```bash
+$ terraform import scaleway_iot_device.device01 fr-par/11111111-1111-1111-1111-111111111111
+```

scaleway/helpers.go

@@ -327,6 +327,17 @@ func expandStrings(data interface{}) []string {
 	return stringSlice
 }
 
+func expandStringsOrEmpty(data interface{}) []string {
+	if data == nil {
+		return []string{}
+	}
+	stringSlice := []string{}
+	for _, s := range data.([]interface{}) {
+		stringSlice = append(stringSlice, s.(string))
+	}
+	return stringSlice
+}
+
 func expandSliceStringPtr(data interface{}) []*string {
 	if data == nil {
 		return nil

scaleway/provider.go

@@ -76,6 +76,7 @@ func Provider(config *ProviderConfig) plugin.ProviderFunc {
 				"scaleway_instance_placement_group":      resourceScalewayInstancePlacementGroup(),
 				"scaleway_instance_private_nic":          resourceScalewayInstancePrivateNIC(),
 				"scaleway_iot_hub":                       resourceScalewayIotHub(),
+				"scaleway_iot_device":                    resourceScalewayIotDevice(),
 				"scaleway_k8s_cluster":                   resourceScalewayK8SCluster(),
 				"scaleway_k8s_pool":                      resourceScalewayK8SPool(),
 				"scaleway_lb":                            resourceScalewayLb(),