Public bug reported: [Impact]
According to netplan doc https://netplan.readthedocs.io/en/latest/netplan-yaml gateway4/gateway6 are deprecated and the first version deprecates these fields is 0.103, it should use "routes:" instead. In scripts/functions:_render_netplan, it still generates the deprecated fields in /run/netplan/xxx.yaml: if [ -n "$gateway4" ]; then echo " gateway4: \"$gateway4\"" fi if [ -n "$gateway6" ]; then echo " gateway6: \"$gateway6\"" fi Then casper copies this config to root filesystem and later on used by cloud-init: https://git.launchpad.net/ubuntu/+source/casper/tree/scripts/casper-bottom/58server_network?h=applied/ubuntu/noble-updates#n47 In this case, cloud-init returns 2 (success with recoverable errors) rather than '0' (success) We should modify these fields to use "routes:" based on netplan doc: https://netplan.readthedocs.io/en/latest/netplan-yaml/#default-routes [Test Case] To verify if it generates the correct netplan config, we can specify ip related config in kernel cmdline in grub menu and check the yaml file in /run/netplan/ Steps to reproduce the netplan config: 1. launch a test VM in lxd 2. go into grub menu 3. pass ip related info to kernel cmdline, e.g. ip=10.194.146.91::10.194.146.1:255.255.255.0::::10.194.146.1 4. boot into system and check /run/netplan/xxx.yaml Originally, it generates something like: cat /run/netplan/enp5s0.yaml network: version: 2 ethernets: enp5s0: addresses: - "10.194.146.91/24" gateway4: "10.194.146.1" nameservers: addresses: ["10.194.146.1"] After the patch, it generates something like: cat /run/netplan/enp5s0.yaml network: version: 2 ethernets: enp5s0: addresses: - "10.194.146.91/24" routes: - to: default via: "10.194.146.1" nameservers: addresses: ["10.194.146.1"] [Where problems could occur] This patch follows the netplan doc to use "routes:" for default gateway, if the format is correct, it shouldn't cause any issue. [Other Info] https://bugs.launchpad.net/cloud-init/+bug/1992512 ** Affects: initramfs-tools (Ubuntu) Importance: Undecided Assignee: gerald.yang (gerald-yang-tw) Status: In Progress ** Affects: initramfs-tools (Ubuntu Focal) Importance: Undecided Assignee: gerald.yang (gerald-yang-tw) Status: In Progress ** Affects: initramfs-tools (Ubuntu Jammy) Importance: Undecided Assignee: gerald.yang (gerald-yang-tw) Status: In Progress ** Affects: initramfs-tools (Ubuntu Noble) Importance: Undecided Assignee: gerald.yang (gerald-yang-tw) Status: In Progress ** Affects: initramfs-tools (Ubuntu Oracular) Importance: Undecided Assignee: gerald.yang (gerald-yang-tw) Status: In Progress ** Affects: initramfs-tools (Ubuntu Plucky) Importance: Undecided Assignee: gerald.yang (gerald-yang-tw) Status: In Progress ** Changed in: initramfs-tools (Ubuntu) Assignee: (unassigned) => gerald.yang (gerald-yang-tw) ** Changed in: initramfs-tools (Ubuntu) Status: New => In Progress ** Also affects: initramfs-tools (Ubuntu Plucky) Importance: Undecided Assignee: gerald.yang (gerald-yang-tw) Status: In Progress ** Also affects: initramfs-tools (Ubuntu Focal) Importance: Undecided Status: New ** Also affects: initramfs-tools (Ubuntu Oracular) Importance: Undecided Status: New ** Also affects: initramfs-tools (Ubuntu Noble) Importance: Undecided Status: New ** Also affects: initramfs-tools (Ubuntu Jammy) Importance: Undecided Status: New ** Changed in: initramfs-tools (Ubuntu Focal) Assignee: (unassigned) => gerald.yang (gerald-yang-tw) ** Changed in: initramfs-tools (Ubuntu Jammy) Assignee: (unassigned) => gerald.yang (gerald-yang-tw) ** Changed in: initramfs-tools (Ubuntu Noble) Assignee: (unassigned) => gerald.yang (gerald-yang-tw) ** Changed in: initramfs-tools (Ubuntu Oracular) Assignee: (unassigned) => gerald.yang (gerald-yang-tw) ** Changed in: initramfs-tools (Ubuntu Oracular) Status: New => In Progress ** Changed in: initramfs-tools (Ubuntu Noble) Status: New => In Progress ** Changed in: initramfs-tools (Ubuntu Focal) Status: New => In Progress ** Changed in: initramfs-tools (Ubuntu Jammy) Status: New => In Progress -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to initramfs-tools in Ubuntu. https://bugs.launchpad.net/bugs/2093164 Title: initramfs-tools generates deprecated netplan config gateway4 and gateway6 Status in initramfs-tools package in Ubuntu: In Progress Status in initramfs-tools source package in Focal: In Progress Status in initramfs-tools source package in Jammy: In Progress Status in initramfs-tools source package in Noble: In Progress Status in initramfs-tools source package in Oracular: In Progress Status in initramfs-tools source package in Plucky: In Progress Bug description: [Impact] According to netplan doc https://netplan.readthedocs.io/en/latest/netplan-yaml gateway4/gateway6 are deprecated and the first version deprecates these fields is 0.103, it should use "routes:" instead. In scripts/functions:_render_netplan, it still generates the deprecated fields in /run/netplan/xxx.yaml: if [ -n "$gateway4" ]; then echo " gateway4: \"$gateway4\"" fi if [ -n "$gateway6" ]; then echo " gateway6: \"$gateway6\"" fi Then casper copies this config to root filesystem and later on used by cloud-init: https://git.launchpad.net/ubuntu/+source/casper/tree/scripts/casper-bottom/58server_network?h=applied/ubuntu/noble-updates#n47 In this case, cloud-init returns 2 (success with recoverable errors) rather than '0' (success) We should modify these fields to use "routes:" based on netplan doc: https://netplan.readthedocs.io/en/latest/netplan-yaml/#default-routes [Test Case] To verify if it generates the correct netplan config, we can specify ip related config in kernel cmdline in grub menu and check the yaml file in /run/netplan/ Steps to reproduce the netplan config: 1. launch a test VM in lxd 2. go into grub menu 3. pass ip related info to kernel cmdline, e.g. ip=10.194.146.91::10.194.146.1:255.255.255.0::::10.194.146.1 4. boot into system and check /run/netplan/xxx.yaml Originally, it generates something like: cat /run/netplan/enp5s0.yaml network: version: 2 ethernets: enp5s0: addresses: - "10.194.146.91/24" gateway4: "10.194.146.1" nameservers: addresses: ["10.194.146.1"] After the patch, it generates something like: cat /run/netplan/enp5s0.yaml network: version: 2 ethernets: enp5s0: addresses: - "10.194.146.91/24" routes: - to: default via: "10.194.146.1" nameservers: addresses: ["10.194.146.1"] [Where problems could occur] This patch follows the netplan doc to use "routes:" for default gateway, if the format is correct, it shouldn't cause any issue. [Other Info] https://bugs.launchpad.net/cloud-init/+bug/1992512 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/2093164/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
