B-552: Fix compatible_system_datastore parsing (#576)

CHANGELOG.md

@@ -4,6 +4,7 @@ BUG FIXES:
 
 * resources/opennebula_vm_group: fix anti affinity reading (#497)
 * resources/opennebula_datastore: remove DS_MAD for Ceph SYSTEM datastore (#542)
+* resources/opennebula_datastore: fix compatible_system_datastore parsing (#552)
 
 # 1.4.1 (Unreleased)
 

opennebula/resource_opennebula_datastore.go

@@ -121,7 +121,7 @@ func resourceOpennebulaDatastore() *schema.Resource {
 				Optional:    true,
 				Description: "For Image Datastores only. Set the System Datastores IDs that can be used with an Image Datastore",
 				Elem: &schema.Schema{
-					Type: schema.TypeInt,
+					Type: schema.TypeString,
 				},
 			},
 			"ceph": {
@@ -282,13 +282,20 @@ func resourceOpennebulaDatastoreCreate(ctx context.Context, d *schema.ResourceDa
 
 	compatibleSystemDatastores := d.Get("compatible_system_datastore").(*schema.Set).List()
 	if len(compatibleSystemDatastores) > 0 {
-
 		// convert to slice of strings then join
 		var compatibleSysDs []string
 		for _, sysDs := range compatibleSystemDatastores {
-			compatibleSysDs = append(compatibleSysDs, fmt.Sprint(sysDs.(int)))
+			i, err := ParseIntFromInterface(sysDs)
+			if err != nil {
+				diags = append(diags, diag.Diagnostic{
+					Severity: diag.Error,
+					Summary:  "Failed to parse datastore ID",
+					Detail:   err.Error(),
+				})
+				return diags
+			}
+			compatibleSysDs = append(compatibleSysDs, fmt.Sprint(i))
 		}
-
 		tpl.Add(dsKey.CompatibleSysDs, strings.Join(compatibleSysDs, ","))
 	}
 
@@ -542,7 +549,7 @@ func resourceOpennebulaDatastoreRead(ctx context.Context, d *schema.ResourceData
 
 	compatibleSystemDatastore, err := datastoreInfos.Template.Get(dsKey.CompatibleSysDs)
 	if err == nil {
-		d.Set("compatible_system_datastore", compatibleSystemDatastore)
+		d.Set("compatible_system_datastore", strings.Split(compatibleSystemDatastore, ","))
 	}
 
 	customAttrsList := d.Get("custom").(*schema.Set).List()
@@ -788,9 +795,27 @@ func resourceOpennebulaDatastoreUpdate(ctx context.Context, d *schema.ResourceDa
 		update = true
 	}
 	if d.HasChange("compatible_system_datastore") {
-		compatibleSystemDS := d.Get("compatible_system_datastore")
-		newTpl.Del(string(dsKey.CompatibleSysDs))
-		newTpl.Add(dsKey.CompatibleSysDs, compatibleSystemDS)
+		compatibleSystemDatastores := d.Get("compatible_system_datastore").(*schema.Set).List()
+		if len(compatibleSystemDatastores) > 0 {
+			// convert to slice of strings then join
+			var compatibleSysDs []string
+			for _, sysDs := range compatibleSystemDatastores {
+				i, err := ParseIntFromInterface(sysDs)
+				if err != nil {
+					diags = append(diags, diag.Diagnostic{
+						Severity: diag.Error,
+						Summary:  "Failed to parse datastore ID",
+						Detail:   err.Error(),
+					})
+					return diags
+				}
+				compatibleSysDs = append(compatibleSysDs, fmt.Sprint(i))
+			}
+			newTpl.Del(string(dsKey.CompatibleSysDs))
+			newTpl.Add(dsKey.CompatibleSysDs, strings.Join(compatibleSysDs, ","))
+		} else {
+			newTpl.Del(string(dsKey.CompatibleSysDs))
+		}
 		update = true
 	}