* ### How do I change the space reserved by the data disk?
By default, the entire disk space is reserved in advance. To create a growable disk, that only reserves the space that is actually used, add the following environment variable:
By default, the entire disk space is reserved in advance. To create a growable disk that only reserves the space that is actually used, add the following environment variable:
An added benefit of this approach is that you won't have to perform any port mapping anymore, since all ports will be exposed by default.
An added benefit of this approach is that you won't have to perform any port mapping anymore since all ports will be exposed by default.
Please note that this IP address won't be accessible from the Docker host due to the design of macvlan, which doesn't permit communication between the two. If this is a concern, you need to create a [second macvlan](https://blog.oddbit.com/post/2018-03-12-using-docker-macvlan-networks/#host-access) as a workaround.
Please note that the exact `cgroup` rule number may vary depending on your system, but the log output will indicate the correct number in case of an error.
Please note that the exact `cgroup` rule number may vary depending on your system, but the log output will indicate the correct number in the event of an error.