MTU not applied before verifying repositories causing deployment failure

[Ashley Deane]

Detailed bug description:
 I'm running fuel on a centOS server as a virtual instance with bridged networking
 This means I need to set the mtu size to 1498 for all traffic through the admin (PXE), mgmt private & storage network

 Even with the MTU size set correctly in fuel the deploy fails as the mtu size is set sometime after the setup_repositories task which will fail with incorrect mtu size

Steps to reproduce:
 Fuel on a VM with bridged networking to create the need for an mtu size of 1498
  or
 Fuel node pxe network set to mtu size of 1498 to sim bridged network
  also to note I'm not assigning a public IP to the nodes

 set the MTU size of the nodes to 1498 in the interface configuration
 and set all networks expect public to be on the same nic as the pxe network
 deploy nodes

Expected results:
 Successful deployment

Actual result:
 Deployment fails with
  Failed tasks: Task setup_repositories

Reproducibility:
 every time I try to deploy

Workaround:
 Manually set MTU of nodes during deploy (After Ubuntu image installed)
   for x in `fuel node list|awk ' /1/ { print $10 }'`; do ssh $x -C "ifconfig enp0s25 mtu 1498"; done

Impact:
 Failed deployment of openstack

Description of the environment:
 Operation system: CentOS 7, Fuel 9
 Versions of components: Fuel 9
 Reference architecture: Ubuntu OrangeBox v4

[Oleksiy Molchanov (omolchanov)]

Please provide diagnostic snapshot. Marking as Incomplete.

[Ashley Deane (deanea)]

I've tried to upload the snapshot a few times but it keeps timing out, its around 900mb so is there anywhere I can host it for you to download?