Add support for parameter manager parameter version datasource google_parameter_manager_parameter_version (GoogleCloudPlatform#12653)

Author: abheda-crest

mmv1/third_party/terraform/provider/provider_mmv1_resources.go.tmpl

@@ -189,6 +189,7 @@ var handwrittenDatasources = map[string]*schema.Resource{
 	{{- if ne $.TargetVersionName "ga" }}
 	"google_parameter_manager_parameter":               parametermanager.DataSourceParameterManagerParameter(),
 	"google_parameter_manager_parameters":              parametermanager.DataSourceParameterManagerParameters(),
+	"google_parameter_manager_parameter_version":       parametermanager.DataSourceParameterManagerParameterVersion(),
 	"google_parameter_manager_regional_parameter":      parametermanagerregional.DataSourceParameterManagerRegionalRegionalParameter(),
 	"google_parameter_manager_regional_parameters":     parametermanagerregional.DataSourceParameterManagerRegionalRegionalParameters(),
 	{{- end }}

mmv1/third_party/terraform/services/parametermanager/data_source_parameter_manager_parameter_version.go.tmpl

@@ -0,0 +1,162 @@
+package parametermanager
+{{- if ne $.TargetVersionName "ga" }}
+
+import (
+	"encoding/base64"
+	"fmt"
+	"net/http"
+	"regexp"
+
+	"github.com/hashicorp/terraform-provider-google/google/tpgresource"
+	transport_tpg "github.com/hashicorp/terraform-provider-google/google/transport"
+
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
+)
+
+func DataSourceParameterManagerParameterVersion() *schema.Resource {
+	return &schema.Resource{
+		Read: dataSourceParameterManagerParameterVersionRead,
+		Schema: map[string]*schema.Schema{
+			"project": {
+				Type:     schema.TypeString,
+				Optional: true,
+				Computed: true,
+			},
+			"parameter": {
+				Type:             schema.TypeString,
+				Required:         true,
+				DiffSuppressFunc: tpgresource.CompareSelfLinkOrResourceName,
+			},
+			"parameter_version_id": {
+				Type:     schema.TypeString,
+				Required: true,
+			},
+			"parameter_data": {
+				Type:      schema.TypeString,
+				Computed:  true,
+				Sensitive: true,
+			},
+			"name": {
+				Type:     schema.TypeString,
+				Computed: true,
+			},
+			"create_time": {
+				Type:     schema.TypeString,
+				Computed: true,
+			},
+			"update_time": {
+				Type:     schema.TypeString,
+				Computed: true,
+			},
+			"disabled": {
+				Type:     schema.TypeBool,
+				Computed: true,
+			},
+		},
+	}
+}
+
+func dataSourceParameterManagerParameterVersionRead(d *schema.ResourceData, meta interface{}) error {
+	config := meta.(*transport_tpg.Config)
+	userAgent, err := tpgresource.GenerateUserAgentString(d, config.UserAgent)
+	if err != nil {
+		return err
+	}
+
+	// Check if the parameter is provided as a resource reference or a parameter id.
+	parameterRegex := regexp.MustCompile("projects/(.+)/locations/global/parameters/(.+)$")
+	dParameter, ok := d.Get("parameter").(string)
+	if !ok {
+		return fmt.Errorf("wrong type for parameter field (%T), expected string", d.Get("parameter"))
+	}
+
+	parts := parameterRegex.FindStringSubmatch(dParameter)
+	var project string
+
+	// if reference of the parameter is provided in the parameter field
+	if len(parts) == 3 {
+		// Stores value of project to set in state
+		project = parts[1]
+		if dProject, ok := d.Get("project").(string); !ok {
+			return fmt.Errorf("wrong type for project (%T), expected string", d.Get("project"))
+		} else if dProject != "" && dProject != project {
+			return fmt.Errorf("project field value (%s) does not match project of parameter (%s).", dProject, project)
+		}
+		if err := d.Set("parameter", parts[2]); err != nil {
+			return fmt.Errorf("error setting parameter: %s", err)
+		}
+	} else { // if parameter name is provided in the parameter field
+		// Stores value of project to set in state
+		project, err = tpgresource.GetProject(d, config)
+		if err != nil {
+			return fmt.Errorf("error fetching project for parameter: %s", err)
+		}
+	}
+	if err := d.Set("project", project); err != nil {
+		return fmt.Errorf("error setting project: %s", err)
+	}
+
+	dParameterVersionId, ok := d.Get("parameter_version_id").(string)
+	if !ok {
+		return fmt.Errorf("wrong type for parameter version id field (%T), expected string", d.Get("parameter_version_id"))
+	}
+
+	url, err := tpgresource.ReplaceVars(d, config, "{{"{{"}}ParameterManagerBasePath{{"}}"}}projects/{{"{{"}}project{{"}}"}}/locations/global/parameters/{{"{{"}}parameter{{"}}"}}/versions/{{"{{"}}parameter_version_id{{"}}"}}")
+	if err != nil {
+		return err
+	}
+
+	headers := make(http.Header)
+	parameterVersion, err := transport_tpg.SendRequest(transport_tpg.SendRequestOptions{
+		Config:    config,
+		Method:    "GET",
+		Project:   project,
+		RawURL:    url,
+		UserAgent: userAgent,
+		Headers:   headers,
+	})
+	if err != nil {
+		return fmt.Errorf("error retrieving available parameter manager parameter versions: %s", err.Error())
+	}
+
+	// If the response contains the disabled value, return an error stating that the parameter version is currently disabled
+	isDisabled, ok := parameterVersion["disabled"]
+	if ok && isDisabled.(bool) {
+		return fmt.Errorf("parameter version %s is in DISABLED state.", dParameterVersionId)
+	}
+
+	nameValue, ok := parameterVersion["name"]
+	if !ok {
+		return fmt.Errorf("read response didn't contain critical fields. Read may not have succeeded.")
+	}
+
+	if err := d.Set("name", nameValue.(string)); err != nil {
+		return fmt.Errorf("error reading parameterVersion: %s", err)
+	}
+
+	if err := d.Set("disabled", false); err != nil {
+		return fmt.Errorf("error setting disabled: %s", err)
+	}
+
+	if err := d.Set("update_time", parameterVersion["updateTime"].(string)); err != nil {
+		return fmt.Errorf("error setting update_time: %s", err)
+	}
+
+	if err := d.Set("create_time", parameterVersion["createTime"].(string)); err != nil {
+		return fmt.Errorf("error setting create_time: %s", err)
+	}
+
+	data := parameterVersion["payload"].(map[string]interface{})
+	parameterData, err := base64.StdEncoding.DecodeString(data["data"].(string))
+	if err != nil {
+		return fmt.Errorf("error decoding parameter manager parameter version data: %s", err.Error())
+	}
+	if err := d.Set("parameter_data", string(parameterData)); err != nil {
+		return fmt.Errorf("error setting parameter_data: %s", err)
+	}
+
+	d.SetId(nameValue.(string))
+	return nil
+}
+
+{{ end }}