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[Dimitri John Ledkov <1919177@xxxxxxxxxxxxxxxxxx>]

** Also affects: linux-azure (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: linux-azure (Ubuntu)
    Milestone: None => ubuntu-21.04

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https://bugs.launchpad.net/bugs/1919177

Title:
  Azure: issues with accelerated networking on Hirsute

Status in cloud-init:
  Incomplete
Status in cloud-init package in Ubuntu:
  New
Status in linux-azure package in Ubuntu:
  New

Bug description:
  [General]

  On Azure, when provisioning a Hirsute VM with Accelerated Networking
  enabled, sometimes the SSH key is not setup properly and the user
  cannot log into the VM.

  [how to reproduce]

  Start a VM with AN enabled:

  ```
  az vm create --name "$VM_NAME --resource-group "$GROUP" --location "UK South"  --image 'Canonical:0001-com-ubuntu-server-hirsute-daily:21_04-daily-gen2:latest' --size Standard_F8s_v2 --admin-username ubuntu --ssh-key-value "$SSH_KEY" --accelerated-networking
  ```

  After a moment, try to SSH: if you succeed, delete and recreate a new
  VM.

  [troubleshooting]

  To be able to connect into the VM to debug, run:

  ```
  az vm run-command invoke -g "$GROUP" -n "$VM_NAME" --command-id RunShellScript --scripts "sudo -u ubuntu ssh-import-id $LP_USERNAME"
  ```

  In "/run/cloud-init/instance-data.json", I can see:
  ```
       "publicKeys": [
        {
         "keyData": "<my-pub-key>",
         "path": "/home/ubuntu/.ssh/authorized_keys"
        }
       ],
  ```

  as expected.

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