CopyFile copies both files and directories.

Creates the /var/lib/firecracker/{vm,image,kernel} directories.

This is a light weight handler to capture errors during detach that would otherwise be silently ignored.

FileIsEmpty returns true if the file is empty.

FIPSEnabled returns true if running in FIPS mode.

GenericCheckErr is used by the commands to check if the action failed and respond with a fatal error provided by the logger (calls os.Exit) Ignite has its own, more detailed implementation of this in cmdutil.

Fills the given string slice with unique MAC addresses.

NewPrefixer returns an immutable prefixer for a specific purpose ex: idPrefix is used to prefix vm, container, and snapshot file/device names.

WriteFileIfChanged stores a sha of data at <filename>.sha256 and determines whether to rewrite the file; it has the same signature as ioutil.WriteFile().