tree b4cb60241524753425d51906d442e7ad814425ed
parent ad32af2bba8126f8aeabfb21c6097c9fe7a85b04
author Tomáš Pecka <tomas.pecka@cesnet.cz> 1611762355 +0100
committer Tomáš Pecka <tomas.pecka@cesnet.cz> 1612724260 +0100

system: switch czechlight-system to pull ops data

Czechlight-system YANG model's operational data are currently pushed
into Sysrepo. However, we want to implement also an overview of current
firmware slot status (see next commit). We can't attach to any D-Bus
signal that would inform us about changes, because the RAUC slot status
data are provided by the GetSlotStatus function [1] and the data might be
changed externally (e.g. by marking the slot good or bad) any time.

It would be hard to follow the changes and propagate them, so let's just
switch everything here to pulling ops data. The next commit will add the
actual slot status retrieval.

Also note, that we have two separate subscriptions here. One for the RPC
and one for the operational data. This is due to Sysrepo limitation
described here [2].

[1] https://rauc.readthedocs.io/en/v1.4/reference.html#gdbus-method-de-pengutronix-rauc-installer-getslotstatus
[2] https://netopeer.liberouter.org/doc/sysrepo/master/html/subs.html

Change-Id: Ie7c84381f20d4ba0a41b0a3b1c1cea9585f99749