feat(dds): support to get dds quotas

docs/data-sources/dds_quotas.md

@@ -0,0 +1,43 @@
+---
+subcategory: "Document Database Service (DDS)"
+layout: "huaweicloud"
+page_title: "HuaweiCloud: huaweicloud_dds_quotas"
+description: |-
+  Use this data source to get the list of DDS quotas.
+---
+
+# huaweicloud_dds_quotas
+
+Use this data source to get the list of DDS quotas.
+
+## Example Usage
+
+```hcl
+data "huaweicloud_dds_quotas" "test" {}
+```
+
+## Argument Reference
+
+The following arguments are supported:
+
+* `region` - (Optional, String) Specifies the region in which to query the resource. If omitted, the provider-level region will be used.
+
+## Attribute Reference
+
+In addition to all arguments above, the following attributes are exported:
+
+* `id` - The data source ID.
+
+* `quotas` - Indicates the quotas information.
+  The [quotas](#attrblock--quotas) structure is documented below.
+
+<a name="attrblock--quotas"></a>
+The `quotas` block supports:
+
+* `mode` - Indicates the instance type.
+
+* `quota` - Indicates the existing quota.
+
+* `type` - Indicates the quota resource type.
+
+* `used` - Indicates the number of the used instances.

huaweicloud/provider.go

@@ -645,6 +645,7 @@ func Provider() *schema.Provider {
 			"huaweicloud_dcs_accounts":        dcs.DataSourceDcsAccounts(),
 			"huaweicloud_dcs_diagnosis_tasks": dcs.DataSourceDcsDiagnosisTasks(),
 
+			"huaweicloud_dds_quotas":                     dds.DataSourceDdsQuotas(),
 			"huaweicloud_dds_audit_logs":                 dds.DataSourceDdsAuditLogs(),
 			"huaweicloud_dds_audit_log_links":            dds.DataSourceDdsAuditLogLinks(),
 			"huaweicloud_dds_database_versions":          dds.DataSourceDdsDatabaseVersions(),

huaweicloud/services/acceptance/dds/data_source_huaweicloud_dds_quotas_test.go

@@ -0,0 +1,36 @@
+package dds
+
+import (
+	"testing"
+
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/resource"
+
+	"github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/services/acceptance"
+)
+
+func TestAccDataSourceDdsQuotas_basic(t *testing.T) {
+	dataSource := "data.huaweicloud_dds_quotas.test"
+	dc := acceptance.InitDataSourceCheck(dataSource)
+
+	resource.ParallelTest(t, resource.TestCase{
+		PreCheck: func() {
+			acceptance.TestAccPreCheck(t)
+		},
+		ProviderFactories: acceptance.TestAccProviderFactories,
+		Steps: []resource.TestStep{
+			{
+				Config: testDataSourceDdsQuotas_basic,
+				Check: resource.ComposeTestCheckFunc(
+					dc.CheckResourceExists(),
+					resource.TestCheckResourceAttrSet(dataSource, "quotas.#"),
+					resource.TestCheckResourceAttrSet(dataSource, "quotas.0.type"),
+					resource.TestCheckResourceAttrSet(dataSource, "quotas.0.used"),
+					resource.TestCheckResourceAttrSet(dataSource, "quotas.0.mode"),
+					resource.TestCheckResourceAttrSet(dataSource, "quotas.0.quota"),
+				),
+			},
+		},
+	})
+}
+
+const testDataSourceDdsQuotas_basic string = `data "huaweicloud_dds_quotas" "test" {}`

huaweicloud/services/dds/data_source_huaweicloud_dds_quotas.go

@@ -0,0 +1,110 @@
+package dds
+
+import (
+	"context"
+	"strings"
+
+	"github.com/chnsz/golangsdk"
+	"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/huaweicloud/terraform-provider-huaweicloud/huaweicloud/config"
+	"github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/utils"
+)
+
+// @API DDS GET /v3/{project_id}/quotas
+func DataSourceDdsQuotas() *schema.Resource {
+	return &schema.Resource{
+		ReadContext: dataSourceDdsQuotasRead,
+
+		Schema: map[string]*schema.Schema{
+			"region": {
+				Type:        schema.TypeString,
+				Optional:    true,
+				Computed:    true,
+				Description: `Specifies the region in which to query the resource. If omitted, the provider-level region will be used.`,
+			},
+			"quotas": {
+				Type:        schema.TypeList,
+				Computed:    true,
+				Description: `Indicates the quotas information.`,
+				Elem: &schema.Resource{
+					Schema: map[string]*schema.Schema{
+						"used": {
+							Type:        schema.TypeInt,
+							Computed:    true,
+							Description: `Indicates the number of the used instances.`,
+						},
+						"type": {
+							Type:        schema.TypeString,
+							Computed:    true,
+							Description: `Indicates the quota resource type.`,
+						},
+						"mode": {
+							Type:        schema.TypeString,
+							Computed:    true,
+							Description: `Indicates the instance type.`,
+						},
+						"quota": {
+							Type:        schema.TypeInt,
+							Computed:    true,
+							Description: `Indicates the existing quota.`,
+						},
+					},
+				},
+			},
+		},
+	}
+}
+
+func dataSourceDdsQuotasRead(_ context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
+	cfg := meta.(*config.Config)
+	region := cfg.GetRegion(d)
+	client, err := cfg.NewServiceClient("dds", region)
+	if err != nil {
+		return diag.Errorf("error creating DDS client: %s", err)
+	}
+
+	httpUrl := "v3/{project_id}/quotas"
+	getPath := client.Endpoint + httpUrl
+	getPath = strings.ReplaceAll(getPath, "{project_id}", client.ProjectID)
+	getOpt := golangsdk.RequestOpts{
+		KeepResponseBody: true,
+		MoreHeaders: map[string]string{
+			"Content-Type": "application/json",
+		},
+	}
+
+	getResp, err := client.Request("GET", getPath, &getOpt)
+	if err != nil {
+		return diag.Errorf("error retrieving DDS quotas: %s", err)
+	}
+	getRespBody, err := utils.FlattenResponse(getResp)
+	if err != nil {
+		return diag.Errorf("error flattening response: %s", err)
+	}
+
+	resources := utils.PathSearch("quotas.resources", getRespBody, make([]interface{}, 0)).([]interface{})
+	rst := make([]map[string]interface{}, 0, len(resources))
+	for _, resource := range resources {
+		rst = append(rst, map[string]interface{}{
+			"type":  utils.PathSearch("type", resource, nil),
+			"mode":  utils.PathSearch("mode", resource, nil),
+			"quota": utils.PathSearch("quota", resource, nil),
+			"used":  utils.PathSearch("used", resource, nil),
+		})
+	}
+
+	id, err := uuid.GenerateUUID()
+	if err != nil {
+		return diag.FromErr(err)
+	}
+	d.SetId(id)
+
+	mErr := multierror.Append(nil,
+		d.Set("region", region),
+		d.Set("quotas", rst),
+	)
+	return diag.FromErr(mErr.ErrorOrNil())
+}