575b529118
Import all docs from openstack-manuals. Part of bp: doc-migration Change-Id: I28bb8ce1f4a8653f176a554d2e95b4423c437972 Co-Authored-By: Stephen Finucane <sfinucan@redhat.com>
60 lines
2.2 KiB
ReStructuredText
60 lines
2.2 KiB
ReStructuredText
====================================
|
|
Injecting the administrator password
|
|
====================================
|
|
|
|
Compute can generate a random administrator (root) password and inject that
|
|
password into an instance. If this feature is enabled, users can run
|
|
:command:`ssh` to an instance without an :command:`ssh` keypair. The random
|
|
password appears in the output of the :command:`openstack server create`
|
|
command. You can also view and set the admin password from the dashboard.
|
|
|
|
.. rubric:: Password injection using the dashboard
|
|
|
|
By default, the dashboard will display the ``admin`` password and allow the
|
|
user to modify it.
|
|
|
|
If you do not want to support password injection, disable the password fields
|
|
by editing the dashboard's ``local_settings.py`` file.
|
|
|
|
.. code-block:: none
|
|
|
|
OPENSTACK_HYPERVISOR_FEATURES = {
|
|
...
|
|
'can_set_password': False,
|
|
}
|
|
|
|
.. rubric:: Password injection on libvirt-based hypervisors
|
|
|
|
For hypervisors that use the libvirt back end (such as KVM, QEMU, and LXC),
|
|
admin password injection is disabled by default. To enable it, set this option
|
|
in ``/etc/nova/nova.conf``:
|
|
|
|
.. code-block:: ini
|
|
|
|
[libvirt]
|
|
inject_password=true
|
|
|
|
When enabled, Compute will modify the password of the admin account by editing
|
|
the ``/etc/shadow`` file inside the virtual machine instance.
|
|
|
|
.. note::
|
|
|
|
Users can only use :command:`ssh` to access the instance by using the admin
|
|
password if the virtual machine image is a Linux distribution, and it has
|
|
been configured to allow users to use :command:`ssh` as the root user. This
|
|
is not the case for `Ubuntu cloud images <http://uec-images.ubuntu.com>`_
|
|
which, by default, does not allow users to use :command:`ssh` to access the
|
|
root account.
|
|
|
|
.. rubric:: Password injection and XenAPI (XenServer/XCP)
|
|
|
|
When using the XenAPI hypervisor back end, Compute uses the XenAPI agent to
|
|
inject passwords into guests. The virtual machine image must be configured with
|
|
the agent for password injection to work.
|
|
|
|
.. rubric:: Password injection and Windows images (all hypervisors)
|
|
|
|
For Windows virtual machines, configure the Windows image to retrieve the admin
|
|
password on boot by installing an agent such as `cloudbase-init
|
|
<https://cloudbase.it/cloudbase-init>`_.
|