[IAM]: new data/opentelekomcloud_identity_projects_v3 (#1814)

[IAM]: new ``data/opentelekomcloud_identity_projects_v3``

Summary of the Pull Request
Adds new data source to list all available projects
PR Checklist

 Resolves: #1798
 Tests added/passed.
 Documentation updated.
 Schema updated.
 Release notes added.

Acceptance Steps Performed
=== RUN   TestAccOpenStackIdentityV3ProjectsDataSource_basic
--- PASS: TestAccOpenStackIdentityV3ProjectsDataSource_basic (34.75s)
PASS

Process finished with the exit code 0

Reviewed-by: Anton Sidelnikov <None>

docs/data-sources/identity_projects_v3.md

@@ -0,0 +1,34 @@
+---
+subcategory: "Identity and Access Management (IAM)"
+---
+
+# opentelekomcloud_identity_projects_v3
+
+Use this data source to get the list of all OpenTelekomCloud projects.
+
+## Example Usage
+
+```hcl
+data "opentelekomcloud_identity_projects_v3" "project_1" {}
+```
+
+
+## Argument Reference
+
+Data resource lists all available project therefore no arguments are provided.
+
+## Attributes Reference
+
+* `region` - Indicates the region where the project is present.
+
+* `name` - Indicated the name of the project.
+
+* `description` - The description of the project.
+
+* `domain_id` - The domain this project belongs to.
+
+* `parent_id` - The parent of this project.
+
+* `enabled` - Describes whether the project is available
+
+* `is_domain` - Indicates whether the user calling the API is a tenant.

opentelekomcloud/acceptance/iam/data_source_opentelekomcloud_identity_projects_v3_test.go

@@ -0,0 +1,50 @@
+package acceptance
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/resource"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/terraform"
+	"github.com/opentelekomcloud/terraform-provider-opentelekomcloud/opentelekomcloud/acceptance/common"
+)
+
+func TestAccOpenStackIdentityV3ProjectsDataSource_basic(t *testing.T) {
+	userRegion := "eu-de"
+
+	resource.Test(t, resource.TestCase{
+		PreCheck: func() {
+			common.TestAccPreCheck(t)
+			common.TestAccPreCheckAdminOnly(t)
+		},
+		ProviderFactories: common.TestAccProviderFactories,
+		Steps: []resource.TestStep{
+			{
+				Config: testIdentityProjectsV3DataSource_basic(),
+				Check: resource.ComposeTestCheckFunc(
+					testAccCheckIdentityV3ProjectsDataSourceID("data.opentelekomcloud_identity_projects_v3.projects_data"),
+					resource.TestCheckResourceAttr("data.opentelekomcloud_identity_projects_v3.projects_data", "region", userRegion),
+				),
+			},
+		},
+	})
+}
+
+func testAccCheckIdentityV3ProjectsDataSourceID(n string) resource.TestCheckFunc {
+	return func(s *terraform.State) error {
+		rs, ok := s.RootModule().Resources[n]
+		if !ok {
+			return fmt.Errorf("can't find project data source: %s", n)
+		}
+
+		if rs.Primary.ID == "" {
+			return fmt.Errorf("project data source ID not set")
+		}
+
+		return nil
+	}
+}
+
+func testIdentityProjectsV3DataSource_basic() string {
+	return `data "opentelekomcloud_identity_projects_v3" "projects_data" {}`
+}

opentelekomcloud/provider.go

@@ -264,6 +264,7 @@ func Provider() *schema.Provider {
 			"opentelekomcloud_identity_credential_v3":          iam.DataSourceIdentityCredentialV3(),
 			"opentelekomcloud_identity_group_v3":               iam.DataSourceIdentityGroupV3(),
 			"opentelekomcloud_identity_project_v3":             iam.DataSourceIdentityProjectV3(),
+			"opentelekomcloud_identity_projects_v3":            iam.DataSourceIdentityProjectsV3(),
 			"opentelekomcloud_identity_role_v3":                iam.DataSourceIdentityRoleV3(),
 			"opentelekomcloud_identity_user_v3":                iam.DataSourceIdentityUserV3(),
 			"opentelekomcloud_images_image_v2":                 ims.DataSourceImagesImageV2(),

opentelekomcloud/services/iam/data_source_opentelekomcloud_identity_projects_v3.go

@@ -0,0 +1,101 @@
+package iam
+
+import (
+	"context"
+
+	"github.com/hashicorp/go-multierror"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/diag"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
+	"github.com/opentelekomcloud/gophertelekomcloud/openstack/identity/v3/projects"
+	"github.com/opentelekomcloud/terraform-provider-opentelekomcloud/opentelekomcloud/common/cfg"
+	"github.com/opentelekomcloud/terraform-provider-opentelekomcloud/opentelekomcloud/common/fmterr"
+)
+
+func DataSourceIdentityProjectsV3() *schema.Resource {
+	return &schema.Resource{
+		ReadContext: dataSourceIdentityProjectsV3Read,
+
+		Schema: map[string]*schema.Schema{
+			"region": {
+				Type:     schema.TypeString,
+				Computed: true,
+			},
+			"projects": {
+				Type:     schema.TypeList,
+				Computed: true,
+				Elem: &schema.Resource{
+					Schema: map[string]*schema.Schema{
+						"description": {
+							Type:     schema.TypeString,
+							Computed: true,
+						},
+						"domain_id": {
+							Type:     schema.TypeString,
+							Computed: true,
+						},
+						"name": {
+							Type:     schema.TypeString,
+							Computed: true,
+						},
+						"parent_id": {
+							Type:     schema.TypeString,
+							Optional: true,
+						},
+						"enabled": {
+							Type:     schema.TypeBool,
+							Computed: true,
+						},
+						"is_domain": {
+							Type:     schema.TypeBool,
+							Computed: true,
+						},
+					},
+				},
+			},
+		},
+	}
+}
+
+func dataSourceIdentityProjectsV3Read(_ context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
+	config := meta.(*cfg.Config)
+	client, err := config.IdentityV3Client(config.GetRegion(d))
+	if err != nil {
+		return fmterr.Errorf(clientCreationFail, err)
+	}
+
+	allPages, err := projects.List(client, projects.ListOpts{}).AllPages()
+	if err != nil {
+		return fmterr.Errorf("unable to query projects: %s", err)
+	}
+
+	allProjects, err := projects.ExtractProjects(allPages)
+	if err != nil {
+		return fmterr.Errorf("unable to retrieve projects: %s", err)
+	}
+
+	var flattenProjects []map[string]interface{}
+
+	for _, item := range allProjects {
+		project := map[string]interface{}{
+			"name":        item.Name,
+			"description": item.Description,
+			"domain_id":   item.DomainID,
+			"parent_id":   item.ParentID,
+			"enabled":     item.Enabled,
+			"is_domain":   item.IsDomain,
+		}
+		flattenProjects = append(flattenProjects, project)
+	}
+
+	d.SetId(client.DomainID)
+	mErr := multierror.Append(
+		d.Set("region", config.GetRegion(d)),
+		d.Set("projects", flattenProjects),
+	)
+
+	if err := mErr.ErrorOrNil(); err != nil {
+		return diag.FromErr(err)
+	}
+
+	return nil
+}

releasenotes/notes/iam_projects_data_source-192be891744c72e8.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    **[IAM]** New ``data/opentelekomcloud_identity_projects_v3`` data source
+    (`#1798 <https://github.com/opentelekomcloud/terraform-provider-opentelekomcloud/issues/1798>`_)