output of recreate:
$ sh /tmp/recreate.sh
Read input format 'yaml' from 'bond-mtu-v1.yaml'.
Wrote output format 'sysconfig' to 'centos/sysconfig/from-v1/'
Read input format 'yaml' from 'bond-mtu-v2.yaml'.
Wrote output format 'sysconfig' to 'centos/sysconfig/from-v2/'
--- centos/sysconfig ----
diff -Naur centos/sysconfig/from-v1/etc/sysconfig/network-scripts/ifcfg-bond0
centos/sysconfig/from-v2/etc/sysconfig/network-scripts/ifcfg-bond0
--- centos/sysconfig/from-v1/etc/sysconfig/network-scripts/ifcfg-bond0
2019-07-17 14:51:47.196419026 -0400
+++ centos/sysconfig/from-v2/etc/sysconfig/network-scripts/ifcfg-bond0
2019-07-17 14:51:47.464420793 -0400
@@ -5,7 +5,6 @@
BONDING_SLAVE1=enp0s1
BOOTPROTO=none
DEVICE=bond0
-MTU=1496
NM_CONTROLLED=no
ONBOOT=yes
STARTMODE=auto
diff -Naur
centos/sysconfig/from-v1/etc/sysconfig/network-scripts/ifcfg-bond0.1000
centos/sysconfig/from-v2/etc/sysconfig/network-scripts/ifcfg-bond0.1000
--- centos/sysconfig/from-v1/etc/sysconfig/network-scripts/ifcfg-bond0.1000
2019-07-17 14:51:47.196419026 -0400
+++ centos/sysconfig/from-v2/etc/sysconfig/network-scripts/ifcfg-bond0.1000
2019-07-17 14:51:47.464420793 -0400
@@ -3,7 +3,6 @@
BOOTPROTO=none
DEVICE=bond0.1000
IPADDR=192.6.1.9
-MTU=1496
NETMASK=255.255.255.0
NM_CONTROLLED=no
ONBOOT=yes
Read input format 'yaml' from 'bond-mtu-v1.yaml'.
Wrote output format 'eni' to 'ubuntu/eni/from-v1/'
Read input format 'yaml' from 'bond-mtu-v2.yaml'.
Wrote output format 'eni' to 'ubuntu/eni/from-v2/'
--- ubuntu/eni ----
diff -Naur ubuntu/eni/from-v1/etc/network/interfaces.d/50-cloud-init.cfg
ubuntu/eni/from-v2/etc/network/interfaces.d/50-cloud-init.cfg
--- ubuntu/eni/from-v1/etc/network/interfaces.d/50-cloud-init.cfg
2019-07-17 14:51:47.744422640 -0400
+++ ubuntu/eni/from-v2/etc/network/interfaces.d/50-cloud-init.cfg
2019-07-17 14:51:48.024424486 -0400
@@ -9,7 +9,6 @@
auto bond0
iface bond0 inet manual
bond-slaves none
- mtu 1496
auto enp0s0
iface enp0s0 inet manual
@@ -22,7 +21,6 @@
auto bond0.1000
iface bond0.1000 inet static
address 192.6.1.9/24
- mtu 1496
vlan-raw-device bond0
vlan_id 1000
Read input format 'yaml' from 'bond-mtu-v1.yaml'.
Wrote output format 'netplan' to 'ubuntu/netplan/from-v1/'
Read input format 'yaml' from 'bond-mtu-v2.yaml'.
Wrote output format 'netplan' to 'ubuntu/netplan/from-v2/'
--- ubuntu/netplan ----
diff -Naur ubuntu/netplan/from-v1/etc/netplan/50-cloud-init.yaml
ubuntu/netplan/from-v2/etc/netplan/50-cloud-init.yaml
--- ubuntu/netplan/from-v1/etc/netplan/50-cloud-init.yaml 2019-07-17
14:51:48.292426253 -0400
+++ ubuntu/netplan/from-v2/etc/netplan/50-cloud-init.yaml 2019-07-17
14:51:48.556427993 -0400
@@ -4,15 +4,14 @@
# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
# network: {config: disabled}
network:
- version: 2
bonds:
bond0:
interfaces:
- enp0s0
- enp0s1
mtu: 1496
- enp0s0: {}
- enp0s1: {}
+ parameters: {}
+ version: 2
vlans:
bond0.1000:
addresses:
** Attachment added: "recreate script"
https://bugs.launchpad.net/ubuntu/+source/cloud-init/+bug/1836949/+attachment/5277683/+files/recreate.sh
** Also affects: cloud-init
Importance: Undecided
Status: New
** Changed in: cloud-init
Status: New => Confirmed
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Engineering Team, which is subscribed to cloud-init.
https://bugs.launchpad.net/bugs/1836949
Title:
mtu gets lost in translation from netplan (v2) yaml
Status in cloud-init:
Confirmed
Status in cloud-init package in Ubuntu:
New
Bug description:
MTU values get lost in translation when input is netplan (v2 yaml).
I'm attaching a recreate script, but basically the mtu setting gets
lost when writing ENI or sysconfig if the input is v2 yaml.
input of:
version: 2
vlans:
bond0.1000:
addresses: ["192.6.1.9/24"]
id: 1000
link: bond0
mtu: 1496
bond0.1001:
id: 1001
link: bond0
bonds:
bond0:
interfaces: ["enp0s0", "enp0s1"]
parameters: {}
mtu: 1496
Renders output files like etc/sysconfig/network-scripts/ifcfg-bond0:
# Created by cloud-init on instance boot automatically, do not edit.
#
BONDING_MASTER=yes
BONDING_SLAVE0=enp0s0
BONDING_SLAVE1=enp0s1
BOOTPROTO=none
DEVICE=bond0
NM_CONTROLLED=no
ONBOOT=yes
STARTMODE=auto
TYPE=Bond
USERCTL=no
Where the same config from v1 would have the 'MTU=1496'
ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: cloud-init 19.1-1-gbaa47854-0ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-54.58-generic 4.15.18
Uname: Linux 4.15.0-54-generic x86_64
ApportVersion: 2.20.11-0ubuntu5
Architecture: amd64
CloudName: LXD
Date: Wed Jul 17 18:37:04 2019
PackageArchitecture: all
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=C.UTF-8
SourcePackage: cloud-init
UpgradeStatus: No upgrade log present (probably fresh install)
user_data.txt:
#cloud-config
{}
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