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cloud-init-writes-vm-host-keys-as-ec2.md

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title description ms.date ms.custom ms.service ms.collection ms.author author ms.reviewer
Cloud-init writes virtual machine's host keys as ec2
This article describes an issue in which Cloud-init writes virtual machine's host keys as ec2. It provides a workaround.
10/10/2020
sap:VM Extensions not operating correctly
virtual-machines
linux
genli
genlin
Timothy.Basham, Scott.L.Roberts

Cloud-init writes virtual machine's host keys as ec2

Original product version:   Virtual Machine running Linux
Original KB number:   4561944

Symptoms

Cloud-init intermittently writes SSH Host keys to console as 'ec2'. Azure doesn't use ec2 instances.

Cause

Cloud-init uses the SSH module to call the write-ssh-key-fingerprints helper script in the final stage. The helper logged these values setting the program name to 'ec2'. The name of the cloud-init project was 'ec2-init' before changing to a platform-agnostic name. Some code paths still include the old name.

Workaround

Ignore 'ec2' logs during troubleshooting. You'll find more information in the Bug description article.

[!INCLUDE Azure Help Support]