Print version information

[JohnStrunk]

Describe the feature you'd like to have.
At startup, the CSI pod should output sufficient version information to tell what version of the software is running.

What is the value to the end user? (why is it a priority?)
In order to facilitate bug reports, we should have a clear display of relevant package and repo versions such that issues can be reproduced.

How will we know we have a good solution? (acceptance criteria)

• At container startup, the following should be displayed:
  • RPM versions for important packages (at least rpm -qa | grep gluster)
  • The git hash from the CSI repo used to build the driver (probably something like: git describe --dirty --always --tags | sed 's/-/./2' | sed 's/-/./2')

Additional context
I envision this as a shell script that execs the csi driver after print the relevant information

[humblec]

@JohnStrunk correct timing, I was already on this in a bit different way :)