I managed to capture a debug log from netplan when run via the ddbus comments
in #8. It was a bit tricky (bind mounted utils.py and set debug = True there)
because netplan is coming from a RO location and no way to use the environment
to enable debugging. Unfortunately the log gives me not many hints:
"""
qemu:ubuntu-core-20-64 .../tests/core/netplan-cfg# dbus-send --type=method_call
--system --print-reply --dest=io.netplan.Netplan
/io/netplan/Netplan/config/PCJPK1 io.netplan.Netplan.Config.Try uint32:300
DEBUG:all-en not found in {}
DEBUG:all-eth not found in {'all-en': {'match': {'name': 'en*'}, 'dhcp4': True}}
DEBUG:br54 not found in {}
DEBUG:Merged config:
network:
bridges:
br54:
dhcp4: true
ethernets:
all-en:
dhcp4: true
match:
name: en*
all-eth:
dhcp4: true
match:
name: eth*
version: 2
DEBUG:New interfaces: set()
DEBUG:netplan generated networkd configuration changed, reloading networkd
DEBUG:all-en not found in {}
DEBUG:all-eth not found in {'all-en': {'match': {'name': 'en*'}, 'dhcp4': True}}
DEBUG:br54 not found in {}
DEBUG:Merged config:
network:
bridges:
br54:
dhcp4: true
ethernets:
all-en:
dhcp4: true
match:
name: en*
all-eth:
dhcp4: true
match:
name: eth*
version: 2
DEBUG:no netplan generated NM configuration exists
DEBUG:all-en not found in {}
DEBUG:all-eth not found in {'all-en': {'match': {'name': 'en*'}, 'dhcp4': True}}
DEBUG:br54 not found in {}
DEBUG:Merged config:
network:
bridges:
br54:
dhcp4: true
ethernets:
all-en:
dhcp4: true
match:
name: en*
all-eth:
dhcp4: true
match:
name: eth*
version: 2
DEBUG:Link changes: {}
DEBUG:all-en not found in {}
DEBUG:all-eth not found in {'all-en': {'match': {'name': 'en*'}, 'dhcp4': True}}
DEBUG:Merged config:
network:
ethernets:
all-en:
dhcp4: true
match:
name: en*
all-eth:
dhcp4: true
match:
name: eth*
version: 2
DEBUG:netplan triggering .link rules for lo
DEBUG:netplan triggering .link rules for ens3
DEBUG:netplan triggering .link rules for br54
DEBUG:all-en not found in {}
DEBUG:all-eth not found in {'all-en': {'match': {'name': 'en*'}, 'dhcp4': True}}
DEBUG:br54 not found in {}
DEBUG:Merged config:
network:
bridges:
br54:
dhcp4: true
ethernets:
all-en:
dhcp4: true
match:
name: en*
all-eth:
dhcp4: true
match:
name: eth*
version: 2
method return time=1649661702.221874 sender=:1.40 -> destination=:1.45
serial=12 reply_serial=2
boolean false
"""
but maybe it's more useful for you?
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https://bugs.launchpad.net/bugs/1967084
Title:
netplan dbus returns "false" in io.netplan.Netplan.Config.Set
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