Add zone metadata resource

.gitignore

@@ -1,4 +1,4 @@
-terraform-provider-dns
+terraform-provider-powerdns
 
 *.dll
 *.exe

docker-compose.yml

@@ -1,4 +1,4 @@
-version: "3"
+version: "3.7"
 services:
   nginx:
     image: nginx:1.17.2

powerdns/client.go

@@ -185,6 +185,12 @@ type ResourceRecordSet struct {
 	Records    []Record `json:"records,omitempty"`
 }
 
+// ResourceZoneMetadata represents a PowerDNS Zone Metadata object
+type ResourceZoneMetadata struct {
+	Kind     string   `json:"kind"`
+	Metadata []string `json:"metadata"`
+}
+
 type zonePatchRequest struct {
 	RecordSets []ResourceRecordSet `json:"rrsets"`
 }
@@ -215,6 +221,11 @@ func (rrSet *ResourceRecordSet) ID() string {
 	return rrSet.Name + idSeparator + rrSet.Type
 }
 
+// ID returns a zoneMetadata with the ID format
+func (metadata *ResourceZoneMetadata) ID(zone string) string {
+	return zone + idSeparator + metadata.Kind
+}
+
 // Returns name and type of record or record set based on its ID
 func parseID(recID string) (string, string, error) {
 	s := strings.Split(recID, idSeparator)
@@ -250,7 +261,7 @@ func (client *Client) detectAPIVersion() (int, error) {
 	}
 
 	defer resp.Body.Close()
-	if resp.StatusCode == 200 {
+	if resp.StatusCode == http.StatusOK {
 		return 1, nil
 	}
 	return 0, nil
@@ -410,7 +421,7 @@ func (client *Client) DeleteZone(name string) error {
 	}
 	defer resp.Body.Close()
 
-	if resp.StatusCode != 204 {
+	if resp.StatusCode != http.StatusNoContent {
 		errorResp := new(errorResponse)
 		if err = json.NewDecoder(resp.Body).Decode(errorResp); err != nil {
 			return fmt.Errorf("Error deleting zone: %s", name)
@@ -524,7 +535,7 @@ func (client *Client) ReplaceRecordSet(zone string, rrSet ResourceRecordSet) (st
 	}
 	defer resp.Body.Close()
 
-	if resp.StatusCode != 200 && resp.StatusCode != 204 {
+	if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusNoContent {
 		errorResp := new(errorResponse)
 		if err = json.NewDecoder(resp.Body).Decode(errorResp); err != nil {
 			return "", fmt.Errorf("Error creating record set: %s", rrSet.ID())
@@ -557,7 +568,7 @@ func (client *Client) DeleteRecordSet(zone string, name string, tpe string) erro
 	}
 	defer resp.Body.Close()
 
-	if resp.StatusCode != 200 && resp.StatusCode != 204 {
+	if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusNoContent {
 		errorResp := new(errorResponse)
 		if err = json.NewDecoder(resp.Body).Decode(errorResp); err != nil {
 			return fmt.Errorf("Error deleting record: %s %s", name, tpe)
@@ -576,6 +587,136 @@ func (client *Client) DeleteRecordSetByID(zone string, recID string) error {
 	return client.DeleteRecordSet(zone, name, tpe)
 }
 
+// GetZoneMetadata get metadata from zone by its ID
+func (client *Client) GetZoneMetadata(id string) (ResourceZoneMetadata, error) {
+	zone, kind, err := parseID(id)
+	if err != nil {
+		return ResourceZoneMetadata{}, err
+	}
+
+	req, err := client.newRequest("GET", fmt.Sprintf("/servers/localhost/zones/%s/metadata/%s", zone, kind), nil)
+	if err != nil {
+		return ResourceZoneMetadata{}, err
+	}
+
+	resp, err := client.HTTP.Do(req)
+	if err != nil {
+		return ResourceZoneMetadata{}, err
+	}
+	defer resp.Body.Close()
+
+	var zoneMetadata ResourceZoneMetadata
+	err = json.NewDecoder(resp.Body).Decode(&zoneMetadata)
+	if err != nil {
+		return ResourceZoneMetadata{}, err
+	}
+
+	return zoneMetadata, nil
+}
+
+// UpdateZoneMetadata creates new record set in Zone
+func (client *Client) UpdateZoneMetadata(zone string, zoneMetadata ResourceZoneMetadata) (string, error) {
+	body, err := json.Marshal(zoneMetadata)
+	if err != nil {
+		return "", err
+	}
+
+	req, err := client.newRequest("PUT", fmt.Sprintf("/servers/localhost/zones/%s/metadata/%s", zone, zoneMetadata.Kind), body)
+	if err != nil {
+		return "", err
+	}
+
+	resp, err := client.HTTP.Do(req)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		errorResp := new(errorResponse)
+		if err = json.NewDecoder(resp.Body).Decode(errorResp); err != nil {
+			return "", fmt.Errorf("Error updating zone metadata: %s", zoneMetadata.Kind)
+		}
+		return "", fmt.Errorf("Error updating zone metadata: %s, reason: %q", zoneMetadata.Kind, errorResp.ErrorMsg)
+	}
+
+	var createdZoneMetadata ResourceZoneMetadata
+	err = json.NewDecoder(resp.Body).Decode(&createdZoneMetadata)
+	if err != nil {
+		return "", err
+	}
+
+	return createdZoneMetadata.ID(zone), nil
+}
+
+// DeleteZoneMetadata deletes zone metadata by its ID
+func (client *Client) DeleteZoneMetadata(id string) error {
+	zone, kind, err := parseID(id)
+	if err != nil {
+		return err
+	}
+
+	req, err := client.newRequest("DELETE", fmt.Sprintf("/servers/localhost/zones/%s/metadata/%s", zone, kind), nil)
+	if err != nil {
+		return err
+	}
+
+	resp, err := client.HTTP.Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		errorResp := new(errorResponse)
+		if err = json.NewDecoder(resp.Body).Decode(errorResp); err != nil {
+			return fmt.Errorf("Error deleting Zone Metadata: %s", kind)
+		}
+		return fmt.Errorf("Error deleting Zone Metadata: %s, reason: %q", kind, errorResp.ErrorMsg)
+	}
+	return nil
+}
+
+// ZoneMetadataExists checks if requested zone exists
+func (client *Client) ZoneMetadataExists(id string) (bool, error) {
+	zone, kind, err := parseID(id)
+	if err != nil {
+		return false, err
+	}
+
+	req, err := client.newRequest("GET", fmt.Sprintf("/servers/localhost/zones/%s/metadata/%s", zone, kind), nil)
+	if err != nil {
+		return false, err
+	}
+
+	resp, err := client.HTTP.Do(req)
+	if err != nil {
+		return false, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusNotFound {
+		errorResp := new(errorResponse)
+		if err = json.NewDecoder(resp.Body).Decode(errorResp); err != nil {
+			return false, fmt.Errorf("Error getting Zone Metadata: %s", kind)
+		}
+		return false, fmt.Errorf("Error getting Zone Metadata: %s, reason: %q", kind, errorResp.ErrorMsg)
+	}
+
+	var ZoneMetadata ResourceZoneMetadata
+	err = json.NewDecoder(resp.Body).Decode(&ZoneMetadata)
+
+	if err != nil {
+		return false, err
+	}
+
+	if len(ZoneMetadata.Metadata) == 0 {
+		return false, err
+	}
+
+	return resp.StatusCode == http.StatusOK, nil
+}
+
 func (client *Client) setServerVersion() error {
 	req, err := client.newRequest("GET", "/servers/localhost", nil)
 	if err != nil {
@@ -587,7 +728,7 @@ func (client *Client) setServerVersion() error {
 		return err
 	}
 	defer resp.Body.Close()
-	if resp.StatusCode != 200 {
+	if resp.StatusCode != http.StatusOK {
 		return fmt.Errorf("Invalid response code from server: '%d'. Response body: %v",
 			resp.StatusCode, resp.Body)
 	}

powerdns/provider.go

@@ -36,8 +36,9 @@ func Provider() terraform.ResourceProvider {
 		},
 
 		ResourcesMap: map[string]*schema.Resource{
-			"powerdns_zone":   resourcePDNSZone(),
-			"powerdns_record": resourcePDNSRecord(),
+			"powerdns_zone":          resourcePDNSZone(),
+			"powerdns_zone_metadata": resourcePDNSZoneMetadata(),
+			"powerdns_record":        resourcePDNSRecord(),
 		},
 
 		ConfigureFunc: providerConfigure,

powerdns/resource_powerdns_zone_metadata.go

@@ -0,0 +1,127 @@
+package powerdns
+
+import (
+	"fmt"
+	"log"
+	"strings"
+
+	"github.com/hashicorp/terraform-plugin-sdk/helper/schema"
+)
+
+func resourcePDNSZoneMetadata() *schema.Resource {
+	return &schema.Resource{
+		Create: resourcePDNSZoneMetadataCreate,
+		Read:   resourcePDNSZoneMetadataRead,
+		Delete: resourcePDNSZoneMetadataDelete,
+		Exists: resourcePDNSZoneMetadataExists,
+		Importer: &schema.ResourceImporter{
+			State: schema.ImportStatePassthrough,
+		},
+
+		Schema: map[string]*schema.Schema{
+			"zone": {
+				Type:     schema.TypeString,
+				Required: true,
+				ForceNew: true,
+			},
+
+			"kind": {
+				Type:     schema.TypeString,
+				Required: true,
+				ForceNew: true,
+			},
+
+			"metadata": {
+				Type:     schema.TypeSet,
+				Elem:     &schema.Schema{Type: schema.TypeString},
+				Required: true,
+				ForceNew: true,
+			},
+		},
+	}
+}
+
+func resourcePDNSZoneMetadataCreate(d *schema.ResourceData, meta interface{}) error {
+	client := meta.(*Client)
+
+	zone := d.Get("zone").(string)
+	mtdata := d.Get("metadata").(*schema.Set).List()
+
+	for _, mt := range mtdata {
+		if len(strings.Trim(mt.(string), " ")) == 0 {
+			log.Printf("[WARN] One or more values in 'metadata' contain empty '' value(s)")
+		}
+	}
+	if !(len(mtdata) > 0) {
+		return fmt.Errorf("'metadata' must not be empty")
+	}
+
+	metadata := make([]string, 0, len(mtdata))
+	for _, mt := range mtdata {
+		metadata = append(metadata, mt.(string))
+	}
+
+	zoneMetadata := ResourceZoneMetadata{
+		Kind:     d.Get("kind").(string),
+		Metadata: metadata,
+	}
+
+	log.Printf("[DEBUG] Creating PowerDNS Zone Metadata: %#v", zoneMetadata)
+
+	metaid, err := client.UpdateZoneMetadata(zone, zoneMetadata)
+	if err != nil {
+		return fmt.Errorf("Failed to create PowerDNS Zone Metadata: %s", err)
+	}
+
+	d.SetId(metaid)
+	log.Printf("[INFO] Created PowerDNS Zone Metadata with ID: %s", d.Id())
+
+	return nil
+}
+
+func resourcePDNSZoneMetadataRead(d *schema.ResourceData, meta interface{}) error {
+	client := meta.(*Client)
+
+	log.Printf("[DEBUG] Reading PowerDNS Zone Metadata: %s", d.Id())
+	record, err := client.GetZoneMetadata(d.Id())
+	if err != nil {
+		return fmt.Errorf("Couldn't fetch PowerDNS Zone Metadata: %s", err)
+	}
+
+	zone, _, err := parseID(d.Id())
+	if err != nil {
+		return err
+	}
+
+	d.SetId(d.Id())
+	d.Set("kind", record.Kind)
+	d.Set("metadata", record.Metadata)
+	d.Set("zone", zone)
+
+	return nil
+}
+
+func resourcePDNSZoneMetadataDelete(d *schema.ResourceData, meta interface{}) error {
+	client := meta.(*Client)
+
+	log.Printf("[INFO] Deleting PowerDNS Zone Metadata: %s", d.Id())
+	err := client.DeleteZoneMetadata(d.Id())
+
+	if err != nil {
+		return fmt.Errorf("Error deleting PowerDNS Zone Metadata: %s", err)
+	}
+
+	return nil
+}
+
+func resourcePDNSZoneMetadataExists(d *schema.ResourceData, meta interface{}) (bool, error) {
+	log.Printf("[INFO] Checking existence of PowerDNS Zone Metadata: %s", d.Id())
+
+	client := meta.(*Client)
+	exists, err := client.ZoneMetadataExists(d.Id())
+
+	if err != nil {
+		return false, fmt.Errorf("Error checking PowerDNS Zone Metadata: %s", err)
+	}
+	return exists, nil
+}