** Changed in: linux (Ubuntu)
Status: Incomplete => Triaged
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https://bugs.launchpad.net/bugs/1803173
Title:
cloud-init disables user on azure at second reboot
Status in cloud-init:
Invalid
Status in linux package in Ubuntu:
Triaged
Status in walinuxagent package in Ubuntu:
Confirmed
Bug description:
Hello,
Environment:
platform: Azure
arm image: Canonical UbuntuServer 16.04-DAILY-LTS latest
Steps:
Deploy VM with user/pass authentication
Install latest linux-next-upstream kernel (for example 4.19.0-4db9d11bcbef,
where 4db9d11bcbef is the git tag from the linux-next latest tree:
https://kernel.googlesource.com/pub/scm/linux/kernel/git/next/linux-next/)
reboot (all good)
reboot again
cloud-init disables the username password authentication
I checked the cloud-init logs and found:
2018-11-01 16:45:28,566 - init.py[INFO]: User already exists, skipping.
2018-11-01 16:45:28,570 - util.py[DEBUG]: Running command ['passwd', '-l',
''] with allowed return codes [0] (shell=False, capture=True)
2018-11-01 16:45:28,793 - util.py[DEBUG]: Reading from /etc/sudoers
(quiet=False)
2018-11-01 16:45:28,795 - util.py[DEBUG]: Read 781 bytes from /etc/sudoers
2018-11-01 16:45:28,796 - util.py[DEBUG]: Writing to
/etc/sudoers.d/90-cloud-init-users - ab: [None] 51 bytes
2018-11-01 16:45:28,797 - handlers.py[DEBUG]: finish:
init-network/config-users-groups: SUCCESS: config-users-groups ran successfully
This issue is very bad one, as it can render your vm inaccessible on Azure.
I think this problem is due to the new kernel installation.
Initial bug report:
https://github.com/Azure/WALinuxAgent/issues/1386
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