[Yahoo-eng-team] [Bug 2027975] Re: Add check on network interface name's length
** Changed in: cloud-init Status: New => Fix Released -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to cloud-init. https://bugs.launchpad.net/bugs/2027975 Title: Add check on network interface name's length Status in cloud-init: Fix Released Status in MAAS: Triaged Bug description: When adding a VLAN on long network interfaces, Cloud-init will fail silently to add the sub-interfaces. Deployed environment is : * MAAS 3.3.4 * Server Dell R630 + Mellanox Connectx-5 * name of interfaces : enp130s0f0np0 / enp130s0f1np1 * add a VLAN like 100-4093 Cloud-Init will not display any error message but the VLAN interfaces will not be added after the deployment. If trying to perform the operation manually, we are then greeted with the following error message. ``` ubuntu@R630:~$ sudo ip link add link enp130s0f0np0 name enp130s0f0np0.103 type vlan id 103 Error: argument "enp130s0f0np0.103" is wrong: "name" not a valid ifname ``` From Iproute2 and Kernel perspective, it is not possible to have interfaces with a name longer than 15 characters in total. A quick workaround is simply to rename the network interface to something shorter. Having a quick warning from MAAS would be nice to have to understand the origin of the issue. To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-init/+bug/2027975/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
[Yahoo-eng-team] [Bug 2027975] Re: Add check on network interface name's length
Let's make MAAS not create names for interfaces that are > 15 characters long. Cloud-init should reject the names if it's told to create interfaces that don't have valid names ** Also affects: cloud-init Importance: Undecided Status: New ** Changed in: maas Milestone: None => 3.5.0 -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to cloud-init. https://bugs.launchpad.net/bugs/2027975 Title: Add check on network interface name's length Status in cloud-init: New Status in MAAS: Triaged Bug description: When adding a VLAN on long network interfaces, Cloud-init will fail silently to add the sub-interfaces. Deployed environment is : * MAAS 3.3.4 * Server Dell R630 + Mellanox Connectx-5 * name of interfaces : enp130s0f0np0 / enp130s0f1np1 * add a VLAN like 100-4093 Cloud-Init will not display any error message but the VLAN interfaces will not be added after the deployment. If trying to perform the operation manually, we are then greeted with the following error message. ``` ubuntu@R630:~$ sudo ip link add link enp130s0f0np0 name enp130s0f0np0.103 type vlan id 103 Error: argument "enp130s0f0np0.103" is wrong: "name" not a valid ifname ``` From Iproute2 and Kernel perspective, it is not possible to have interfaces with a name longer than 15 characters in total. A quick workaround is simply to rename the network interface to something shorter. Having a quick warning from MAAS would be nice to have to understand the origin of the issue. To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-init/+bug/2027975/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
