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[Launchpad Bug Tracker <1919177@xxxxxxxxxxxxxxxxxx>]

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[General]

On Azure, when provisioning a Hirsute VM with Accelerated Networking
enabled, sometimes part of the cloud-init configuration is not applied.

Especially, in those cases, the public SSH key is not setup properly.

[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, 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.

[workaround]

As mentioned, Azure allows the user to run command into the VM without
SSH connection. To do so, one can use the Azure CLI:

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

This example uses "ssh-import-id" but it's also possible to just echo a
given public key into /home/ubuntu/.ssh/authorized_keys

NOTE: this will only solves the SSH issue, I do not know if this bug
affects other things. If so the user would have to apply those things
manually.

** Affects: ubuntu-translations
     Importance: Undecided
         Status: Incomplete

** Affects: systemd (Ubuntu)
     Importance: Undecided
         Status: Fix Released

** Affects: systemd (Ubuntu Hirsute)
     Importance: Undecided
         Status: New


** Tags: fr-1324
-- 
Azure: issues with accelerated networking on Hirsute
https://bugs.launchpad.net/bugs/1919177
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