'unmanaged' via keyfile plugin - not quite

[poma <pomidorabelisima gmail com>]

~~~~~~~~~~~~~~~~
ifcfg-rh plugin:
~~~~~~~~ ~~~~~~~

/etc/NetworkManager/NetworkManager.conf:
[main]
plugins=ifcfg-rh

/etc/sysconfig/network-scripts/ifcfg-enp3s0:
...
NM_CONTROLLED=no

$ nmcli device status
DEVICE  TYPE      STATE         CONNECTION
...
enp3s0  ethernet  unmanaged     --
...

$ nmcli -f GENERAL.STATE device show enp3s0
GENERAL.STATE:                          10 (unmanaged)

# journalctl -b -u NetworkManager --no-pager
...
NetworkManager[1462]: <info> NetworkManager (version
0.9.9.1-4.git20140319.fc20) is starting...
NetworkManager[1462]: <info> Read config:
/etc/NetworkManager/NetworkManager.conf and conf.d: 00-server.conf
NetworkManager[1462]: ifcfg-rh: Acquired D-Bus service com.redhat.ifcfgrh1
NetworkManager[1462]: <info> Loaded plugin ifcfg-rh: (c) 2007 - 2013 Red
Hat, Inc.  To report bugs please use the NetworkManager mailing list.
NetworkManager[1462]: <info> Loaded plugin keyfile: (c) 2007 - 2013 Red
Hat, Inc.  To report bugs please use the NetworkManager mailing list.
NetworkManager[1462]: ifcfg-rh: parsing
/etc/sysconfig/network-scripts/ifcfg-enp3s0 ...
NetworkManager[1462]: ifcfg-rh:     read connection 'enp3s0'
NetworkManager[1462]: ifcfg-rh: Ignoring connection 'enp3s0' / device
'...' due to NM_CONTROLLED=no.
NetworkManager[1462]: <info> Networking is enabled by state file
NetworkManager[1462]: <info> (enp3s0): carrier is OFF (but ignored)
NetworkManager[1462]: <info> (enp3s0): new Ethernet device (driver:
'r8169' ifindex: 4)
NetworkManager[1462]: <info> (enp3s0): exported as
/org/freedesktop/NetworkManager/Devices/3
systemd[1]: Started Network Manager.
NetworkManager[1462]: <info> startup complete

                          -- unmanaged OK --

~~~~~~~~~~~~~~~
keyfile plugin:
~~~~~~~ ~~~~~~~

/etc/NetworkManager/conf.d/custom.conf:
[main]
plugins=keyfile

[keyfile]
unmanaged-devices=interface-name:enp3s0

/etc/NetworkManager/system-connections/enp3s0:
...
[connection]
id=enp3s0
...

$ nmcli device status
DEVICE  TYPE      STATE         CONNECTION
enp3s0  ethernet  connected     enp3s0
...

$ nmcli -f GENERAL.STATE device show enp3s0
GENERAL.STATE:                          100 (connected)

# journalctl -b -u NetworkManager
...
NetworkManager[1446]: <info> NetworkManager (version
0.9.9.1-4.git20140319.fc20) is starting...
NetworkManager[1446]: <info> Read config:
/etc/NetworkManager/NetworkManager.conf and conf.d: 00-server.conf,
custom.conf
NetworkManager[1446]: <info> Loaded plugin keyfile: (c) 2007 - 2013 Red
Hat, Inc.  To report bugs please use the NetworkManager mailing list.
NetworkManager[1446]: keyfile: new connection
/etc/NetworkManager/system-connections/enp3s0
systemd[1]: Started Network Manager.
NetworkManager[1446]: <info> Networking is enabled by state file
NetworkManager[1446]: <info> (enp3s0): carrier is OFF (but ignored)
NetworkManager[1446]: <info> (enp3s0): new Ethernet device (driver:
'r8169' ifindex: 4)
NetworkManager[1446]: <info> (enp3s0): exported as
/org/freedesktop/NetworkManager/Devices/3
NetworkManager[1446]: <info> (enp3s0): device state change: unmanaged ->
unavailable (reason 'managed') [10 20 2]
NetworkManager[1446]: <info> (enp3s0): preparing device
NetworkManager[1446]: <info> (enp3s0): device state change: unavailable
-> disconnected (reason 'none') [20 30 0]
NetworkManager[1446]: <info> Auto-activating connection 'enp3s0'.
NetworkManager[1446]: <info> Activation (enp3s0) starting connection
'enp3s0'
NetworkManager[1446]: <info> Activation (enp3s0) Stage 1 of 5 (Device
Prepare) scheduled...
NetworkManager[1446]: <info> Activation (enp3s0) Stage 1 of 5 (Device
Prepare) started...
NetworkManager[1446]: <info> (enp3s0): device state change: disconnected
-> prepare (reason 'none') [30 40 0]
NetworkManager[1446]: <info> NetworkManager state is now CONNECTING
NetworkManager[1446]: <info> Activation (enp3s0) Stage 2 of 5 (Device
Configure) scheduled...
NetworkManager[1446]: <info> Activation (enp3s0) Stage 1 of 5 (Device
Prepare) complete.
NetworkManager[1446]: <info> Activation (enp3s0) Stage 2 of 5 (Device
Configure) starting...
NetworkManager[1446]: <info> (enp3s0): device state change: prepare ->
config (reason 'none') [40 50 0]
NetworkManager[1446]: <info> Activation (enp3s0) Stage 2 of 5 (Device
Configure) successful.
NetworkManager[1446]: <info> Activation (enp3s0) Stage 2 of 5 (Device
Configure) complete.
NetworkManager[1446]: <info> (enp3s0): link connected
NetworkManager[1446]: <info> Activation (enp3s0) Stage 3 of 5 (IP
Configure Start) scheduled.
NetworkManager[1446]: <info> Activation (enp3s0) Stage 3 of 5 (IP
Configure Start) started...
NetworkManager[1446]: <info> (enp3s0): device state change: config ->
ip-config (reason 'none') [50 70 0]
NetworkManager[1446]: <info> Activation (enp3s0) Stage 5 of 5 (IPv4
Configure Commit) scheduled...
NetworkManager[1446]: <info> Activation (enp3s0) Stage 3 of 5 (IP
Configure Start) complete.
NetworkManager[1446]: <info> Activation (enp3s0) Stage 5 of 5 (IPv4
Commit) started...
NetworkManager[1446]: <info> (enp3s0): device state change: ip-config ->
ip-check (reason 'none') [70 80 0]
NetworkManager[1446]: <info> Activation (enp3s0) Stage 5 of 5 (IPv4
Commit) complete.
NetworkManager[1446]: <info> (enp3s0): device state change: ip-check ->
secondaries (reason 'none') [80 90 0]
NetworkManager[1446]: <info> (enp3s0): device state change: secondaries
-> activated (reason 'none') [90 100 0]
NetworkManager[1446]: <info> NetworkManager state is now CONNECTED_LOCAL
NetworkManager[1446]: <info> Policy set 'enp3s0' (enp3s0) as default for
IPv4 routing and DNS.
NetworkManager[1446]: <info> Activation (enp3s0) successful, device
activated.
NetworkManager[1446]: <info> startup complete
NetworkManager[1446]: <info> NetworkManager state is now CONNECTED_GLOBAL

                          -- unmanaged NOPE --


poma