tree bc31a5421080f659e0f5164b59c8e853ee81637a
parent dcaf893476b1e6b8e32d7e91dd92307f0763906b
author Lei YU <mine260309@gmail.com> 1568185695 +0800
committer Lei YU <mine260309@gmail.com> 1568268360 +0800

Activation: initially support psu update

Initial support for PSU update by starting a systemd unit with PSU
inventory path and image dir as arguments.

Add an example psu-update@.service that shows how the arguments are
passed to systemd unit and expanded to command line arguments.

Tested: Upload a dummy tarball, create a dummy service that only prints
        the arguments, and verify the service is invoked correctly when
        the RequestedActivation is set to Active.

Signed-off-by: Lei YU <mine260309@gmail.com>
Change-Id: I7e122f1cce234caf4951d3e3daad5bee406b507b