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Message #79201
[Bug 1823099] Re: Azure datasource sometimes fails to find wireserver endpoint
[Expired for cloud-init because there has been no activity for 60 days.]
** Changed in: cloud-init
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1823099
Title:
Azure datasource sometimes fails to find wireserver endpoint
Status in cloud-init:
Expired
Bug description:
The Azure datasource needs to communicate with the "Wireserver"
control plane endpoint during provisioning. The IP address of the
endpoint is passed to the VM as option 245 via DHCP. Code to retrieve
that address is remarkably fragile across distros and in the face of
changes users can make in choosing or configuring a network manager.
When the datasource fails to find the endpoint address, provisioning
will often fail, leaving an uncommunicative VM behind. While error
messages are logged, the very nature of the problem (incorrect network
setup and incomplete ssh key provisioning, among other things) means
those log messages are difficult to access from outside the VM, and
access to the VM itself (e.g. via ssh) is often blocked.
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References