Merge pull request #2522 from TimeIncOSS/fix-db-instance-validation

aws: Fix validation for aws_db_instance.identifier

builtin/providers/aws/resource_aws_db_instance.go

@@ -76,7 +76,7 @@ func resourceAwsDbInstance() *schema.Resource {
 				ForceNew: true,
 				ValidateFunc: func(v interface{}, k string) (ws []string, errors []error) {
 					value := v.(string)
-					if !regexp.MustCompile(`^[0-9a-z-]$`).MatchString(value) {
+					if !regexp.MustCompile(`^[0-9a-z-]+$`).MatchString(value) {
 						errors = append(errors, fmt.Errorf(
 							"only lowercase alphanumeric characters and hyphens allowed in %q", k))
 					}