feat(cts): add new data source to query resource tags

docs/data-sources/cts_resource_tags.md

@@ -0,0 +1,49 @@
+---
+subcategory: "Cloud Trace Service (CTS)"
+layout: "huaweicloud"
+page_title: "HuaweiCloud: huaweicloud_cts_resource_tags"
+description: |-
+  Use this data source to get resource tag list of CTS service within HuaweiCloud.
+---
+
+# huaweicloud_cts_resource_tags
+
+Use this data source to get resource tag list of CTS service within HuaweiCloud.
+
+## Example Usage
+
+```hcl
+variable "tracker_id" {}
+
+data "huaweicloud_cts_resource_tags" "test" {
+  resource_id = var.tracker_id
+}
+```
+
+## Argument Reference
+
+The following arguments are supported:
+
+* `region` - (Optional, String) Specifies the region in which to query the resource tags.  
+  If omitted, the provider-level region will be used.
+
+* `resource_type` - (Required, String) Specifies the resource type to be queried.  
+  The valid value is **cts-tracker**.
+
+* `resource_id` - (Required, String) Specifies the resource ID to be queried.
+
+## Attribute Reference
+
+In addition to all arguments above, the following attributes are exported:
+
+* `id` - The resource ID.
+
+* `tags` - The list of tags that matched filter parameters.  
+  The [tags](#cts_resource_tags_attr) structure is documented below.
+
+<a name="cts_resource_tags_attr"></a>
+The `tags` block supports:
+
+* `key` - The tag key.
+
+* `value` - The tag value.

huaweicloud/provider.go

@@ -768,6 +768,7 @@ func Provider() *schema.Provider {
 			"huaweicloud_cts_operations":    cts.DataSourceCtsOperations(),
 			"huaweicloud_cts_quotas":        cts.DataSourceCtsQuotas(),
 			"huaweicloud_cts_resources":     cts.DataSourceCtsResources(),
+			"huaweicloud_cts_resource_tags": cts.DataSourceCtsResourcesTags(),
 			"huaweicloud_cts_tags":          cts.DataSourceCtsTags(),
 			"huaweicloud_cts_users":         cts.DataSourceCtsUsers(),
 

huaweicloud/services/acceptance/cts/data_source_huaweicloud_cts_resource_tags_test.go

@@ -0,0 +1,81 @@
+package cts
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/resource"
+
+	"github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/services/acceptance"
+)
+
+func TestAccDataSourceResourceTags_basic(t *testing.T) {
+	dataSourceName := "data.huaweicloud_cts_resource_tags.test"
+	dc := acceptance.InitDataSourceCheck(dataSourceName)
+
+	resource.ParallelTest(t, resource.TestCase{
+		PreCheck: func() {
+			acceptance.TestAccPreCheck(t)
+		},
+		ProviderFactories: acceptance.TestAccProviderFactories,
+		Steps: []resource.TestStep{
+			{
+				Config: testAccDataSourceResourceTags_basic(),
+				Check: resource.ComposeTestCheckFunc(
+					dc.CheckResourceExists(),
+					resource.TestCheckResourceAttrSet(dataSourceName, "region"),
+					resource.TestCheckResourceAttrSet(dataSourceName, "tags.#"),
+					resource.TestCheckOutput("is_tags_exist", "true"),
+					resource.TestCheckOutput("is_key_set", "true"),
+					resource.TestCheckOutput("is_values_set", "true"),
+				),
+			},
+		},
+	})
+}
+
+func testAccDataSourceResourceTags_base() string {
+	return `
+resource "huaweicloud_obs_bucket" "test" {
+  bucket        = "tf-test-bucket"
+  acl           = "private"
+  force_destroy = true
+}
+
+resource "huaweicloud_cts_tracker" "test" {
+  bucket_name = huaweicloud_obs_bucket.test.bucket
+  file_prefix = "cts"
+
+  tags = {
+    foo1 = "bar1",
+    foo2 = "bar2"
+  }
+}
+`
+}
+func testAccDataSourceResourceTags_basic() string {
+	return fmt.Sprintf(`
+%s
+
+data "huaweicloud_cts_resource_tags" "test" {
+  resource_id   = huaweicloud_cts_tracker.test.id
+  resource_type = "cts-tracker"
+}
+
+locals {
+  tags = data.huaweicloud_cts_resource_tags.test.tags
+}
+
+output "is_tags_exist" {
+  value = length(local.tags) > 0
+}
+
+output "is_key_set" {
+  value = alltrue([for v in local.tags[*].key : v != ""])
+}
+
+output "is_values_set" {
+  value = alltrue([for v in local.tags[*].value : v != ""])
+}
+`, testAccDataSourceResourceTags_base())
+}

huaweicloud/services/cts/data_source_huaweicloud_cts_resources_tags.go

@@ -0,0 +1,123 @@
+package cts
+
+import (
+	"context"
+	"strings"
+
+	"github.com/hashicorp/go-multierror"
+	"github.com/hashicorp/go-uuid"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/diag"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
+
+	"github.com/chnsz/golangsdk"
+
+	"github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/config"
+	"github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/utils"
+)
+
+// @API CTS GET /v3/{project_id}/{resource_type}/{resource_id}/tags
+func DataSourceCtsResourcesTags() *schema.Resource {
+	return &schema.Resource{
+		ReadContext: dataSourceCtsResourcesTagsRead,
+
+		Schema: map[string]*schema.Schema{
+			"region": {
+				Type:        schema.TypeString,
+				Optional:    true,
+				Computed:    true,
+				Description: `The region in which to query the resource tags.`,
+			},
+			"resource_type": {
+				Type:        schema.TypeString,
+				Required:    true,
+				Description: `The resource type to be queried.`,
+			},
+			"resource_id": {
+				Type:        schema.TypeString,
+				Required:    true,
+				Description: `The resource ID to be queried.`,
+			},
+			"tags": {
+				Type:        schema.TypeList,
+				Computed:    true,
+				Description: `The list of tags that matched filter parameters.`,
+				Elem: &schema.Resource{
+					Schema: map[string]*schema.Schema{
+						"key": {
+							Type:        schema.TypeString,
+							Computed:    true,
+							Description: `The tag key.`,
+						},
+						"value": {
+							Type:        schema.TypeString,
+							Computed:    true,
+							Description: `The tag value.`,
+						},
+					},
+				},
+			},
+		},
+	}
+}
+
+func dataSourceCtsResourcesTagsRead(_ context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
+	cfg := meta.(*config.Config)
+	region := cfg.GetRegion(d)
+	client, err := cfg.NewServiceClient("cts", region)
+	if err != nil {
+		return diag.Errorf("error creating CTS client: %s", err)
+	}
+
+	resourceId := d.Get("resource_id").(string)
+	httpUrl := "v3/{project_id}/{resource_type}/{resource_id}/tags"
+	path := client.Endpoint + httpUrl
+	path = strings.ReplaceAll(path, "{project_id}", client.ProjectID)
+	path = strings.ReplaceAll(path, "{resource_type}", d.Get("resource_type").(string))
+	path = strings.ReplaceAll(path, "{resource_id}", resourceId)
+
+	requestOpt := golangsdk.RequestOpts{
+		KeepResponseBody: true,
+		MoreHeaders: map[string]string{
+			"Content-Type": "application/json",
+		},
+	}
+
+	response, err := client.Request("GET", path, &requestOpt)
+	if err != nil {
+		return diag.Errorf("error retrieving CTS resource tags: %s", err)
+	}
+
+	respBody, err := utils.FlattenResponse(response)
+	if err != nil {
+		return diag.FromErr(err)
+	}
+
+	randUUID, err := uuid.GenerateUUID()
+	if err != nil {
+		return diag.Errorf("unable to generate ID: %s", err)
+	}
+	d.SetId(randUUID)
+
+	mErr := multierror.Append(nil,
+		d.Set("region", region),
+		d.Set("tags", flattenResourceTags(utils.PathSearch("tags", respBody, make([]interface{}, 0)).([]interface{}))),
+	)
+
+	return diag.FromErr(mErr.ErrorOrNil())
+}
+
+func flattenResourceTags(tags []interface{}) []interface{} {
+	if len(tags) == 0 {
+		return nil
+	}
+
+	result := make([]interface{}, 0, len(tags))
+	for _, tag := range tags {
+		result = append(result, map[string]interface{}{
+			"key":   utils.PathSearch("key", tag, nil),
+			"value": utils.PathSearch("value", tag, nil),
+		})
+	}
+
+	return result
+}