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| shubjero | Does anyone know where I can configure the advertised mtu to instances in Neutron via cloud-init? | 19:35 |
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| kplant | is that something cloud-init formally handles? | 20:02 |
| kplant | dhcp is a more standard solution for that | 20:02 |
| shubjero | kplant: Well it seems like cloud-init is aware of the mtu of the neutron network an instance is attached do and I've noticed that Ubuntu 20.04 looks at this mtu setting from cloud-init as the source of truth and hard codes the mtu in the netplan configuration. Ubuntu 18.04 seems to ignore this setting from cloud init and defaults to 1454 | 20:06 |
| shubjero | kplant: you can see the mtu here: https://paste.openstack.org/show/809240/ | 20:07 |
| shubjero | Where 1500 equals whatever the neutron network mtu has been set to. | 20:08 |
| kplant | no i get the api gateway supplies mtu, that isn't cloud-init though | 20:10 |
| kplant | does cloud-init have a method of handling that data, was my question | 20:10 |
| shubjero | kplant: I am not sure what you mean | 20:15 |
| shubjero | kplant: kplant: I say cloud-init because Ubuntu seems to leverage cloud-init to build a netplan interface configuration. Example: https://paste.openstack.org/show/809242/ | 20:18 |
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