'encrypted', 'ssl_private_key' => 'encrypted', 'subject_alternative_names' => 'array', 'valid_until' => 'datetime', ]; public function application() { return $this->morphTo('resource'); } public function service() { return $this->morphTo('resource'); } public function database() { return $this->morphTo('resource'); } public function server() { return $this->belongsTo(Server::class); } }