The administrator account password cannot be injected when creating a virtual machine

[yule-sun]

I installed cloudbase-init 1.1.6 on Windows in an ovirt virtual environment and packaged it into a template. When I used this templateto create a new virtual machine, I configured the administrator password. The content of the virtual machine's configdirve directory config-2\openstack\latest\user_data.json is as follows.
#cloud-config
output:
all: '>> /var/log/cloud-init-output.log'
password: Idpbg123456.
disable_root: 0
runcmd:

• 'sed -i ''/^datasource_list: /d'' /etc/cloud/cloud.cfg; echo ''datasource_list:
  ["NoCloud", "ConfigDrive"]'' >> /etc/cloud/cloud.cfg'
  timezone: Asia/Shanghai
  ssh_deletekeys: 'false'
  ssh_pwauth: true
  chpasswd:
  expire: false
  user: administrator

However, after the virtual machine is started, I need to log in for the first time to set the administrator's password. It has not been changed to the password I set myself.
Below is the startup log file. Can you help analyze the reason why the administrator password injection failed?
cloudbase-init.txt

[ader1990]

Hello @yule-sun,

Please check the current capabilities implemented in cloudbase-init regarding to user-data in cloud-config format: https://cloudbase-init.readthedocs.io/en/latest/userdata.html

In your case, as you provided the key user, which is not supported in cloudbase-init, cloudbase-init did not use that information.

2024-11-01 06:33:09.222 6984 ERROR cloudbaseinit.plugins.common.userdataplugins.cloudconfig [-] Plugin 'output' is currently not supported
2024-11-01 06:33:09.222 6984 ERROR cloudbaseinit.plugins.common.userdataplugins.cloudconfig [-] Plugin 'password' is currently not supported
2024-11-01 06:33:09.222 6984 ERROR cloudbaseinit.plugins.common.userdataplugins.cloudconfig [-] Plugin 'disable_root' is currently not supported
2024-11-01 06:33:09.222 6984 ERROR cloudbaseinit.plugins.common.userdataplugins.cloudconfig [-] Plugin 'ssh_deletekeys' is currently not supported
2024-11-01 06:33:09.222 6984 ERROR cloudbaseinit.plugins.common.userdataplugins.cloudconfig [-] Plugin 'ssh_pwauth' is currently not supported
2024-11-01 06:33:09.222 6984 ERROR cloudbaseinit.plugins.common.userdataplugins.cloudconfig [-] Plugin 'chpasswd' is currently not supported
2024-11-01 06:33:09.222 6984 ERROR cloudbaseinit.plugins.common.userdataplugins.cloudconfig [-] Plugin 'user' is currently not supported

I suggest using the users and groups keys to achieve the same result.

Thank you.

[yule-sun]

Thank you very much for your answer.
My user_data.json file is not written by me manually, but it is automatically generated when I create a virtual machine.

I tried to modify the two configuration files of cloud-base and changed user=administrator. As a result, after the newly created virtual machine, the password of the Administrator account was reset to a random password. I urgently want to know the reason for this. Can you help analyze it?
cloudbase-init.log
cloudbase-init-unattend.log

[ader1990]

Hello,

If the username has been changed to Administrator, the plugin SetUserPasswordPlugin will set a random password if the metadata does not contain a password. Also, as the ovirt env does not set the cloudbase-init compatible cloud-config userdata, which should contain the users key values according to the documentation in https://cloudbase-init.readthedocs.io/en/latest/userdata.html, there is currently no way to set the username/password, unless this feature is implemented in cloudbase-init.

To implement the feature, changes are needed in the https://github.com/cloudbase/cloudbase-init/tree/master/cloudbaseinit/plugins/common/userdataplugins/cloudconfigplugins, to have the user and passwd keywords used for the user/password creation.

Can you please share the full config-drive contents from the Ovirt environment, to see how this feature can be implemented?

Thanks you.

[yule-sun]

Thank you very much for your reply.
This is the user_data.json

This is the meta_data.json

I created a new virtual machine. Before the virtual machine IP address took effect, I logged into the server and was prompted to change the Administrator password for the first login. However, after I logged in, the password of the Administrator account was reset to a random password. I want to know why this happened?
cloudbase-init-unattend.log
cloudbase-init.log

[yule-sun]

I don't know where to modify the user_data.json file because it is automatically generated when the computer boots. I also can't find a place to modify the chpasswd module. How should I set it up next to inject a password into the Administrator?

[ader1990]

Hello @yule-sun,

According to https://www.ovirt.org/develop/release-management/features/virt/cloud-init-integration.html, there is no UI integration for the users key, required by cloudbase-init. But https://github.com/oVirt/ovirt-engine/blob/master/backend/manager/modules/restapi/interface/definition/src/main/resources/rsdl_metadata.yaml#L432 -> you can define programatically maybe the users key, according to the documentation from https://cloudbase-init.readthedocs.io/en/latest/userdata.html. I currently do not have an OVirt deployment where I can check. If that is not possible, the only way is to have the required features implemented in Cloudbase-Init.

Thanks.