如何在fig中指定卷的写入访问权限

Question

使用docker-v选项，我们可以指定如下所示的写访问权限

docker run -d --name web -v /etc/localtime:/etc/localtime:ro

其中ro表示只读访问。在

我们怎么能用无花果呢？如果

^{pr2}$

在上面的例子中，：ro在volumes部分中引发以下错误

Traceback (most recent call last):
  File "<string>", line 3, in <module>
  File "/code/build/fig/out00-PYZ.pyz/fig.cli.main", line 39, in main
  File "/code/build/fig/out00-PYZ.pyz/fig.cli.docopt_command", line 21, in sys_dispatch
  File "/code/build/fig/out00-PYZ.pyz/fig.cli.command", line 31, in dispatch
  File "/code/build/fig/out00-PYZ.pyz/fig.cli.docopt_command", line 24, in dispatch
  File "/code/build/fig/out00-PYZ.pyz/fig.cli.command", line 50, in perform_command
  File "/code/build/fig/out00-PYZ.pyz/fig.cli.docopt_command", line 27, in perform_command
  File "/code/build/fig/out00-PYZ.pyz/fig.cli.main", line 306, in up
  File "/code/build/fig/out00-PYZ.pyz/fig.project", line 131, in up
  File "/code/build/fig/out00-PYZ.pyz/fig.service", line 173, in recreate_containers
  File "/code/build/fig/out00-PYZ.pyz/fig.service", line 195, in recreate_container
  File "/code/build/fig/out00-PYZ.pyz/fig.service", line 225, in start_container
ValueError: too many values to unpack