97cd1ccd3d
Remove a lot of noise and make things more generic through use of variables rather than hardcoded values. Change-Id: Ief498f902f24e5991cf463323db78729ae6f8d89 Signed-off-by: Stephen Finucane <sfinucan@redhat.com>
2.2 KiB
Resize an instance
You can change the size of an instance by changing its flavor. This rebuilds the instance and therefore results in a restart.
To resize an instance, use the openstack server resize command:
$ openstack server resize --flavor FLAVOR SERVERNote
By default, the openstack server resize command gives the guest
operating system a chance to perform a controlled shutdown before the
instance is powered off and the instance is resized. The shutdown
behavior is configured by the :oslo.configshutdown_timeout parameter that can be set in the
nova.conf file. Its value stands for the overall period (in
seconds) a guest operating system is allowed to complete the shutdown.
The default timeout is 60 seconds.
The timeout value can be overridden on a per image basis by means of
os_shutdown_timeout that is an image metadata setting
allowing different types of operating systems to specify how much time
they need to shut down cleanly. See Useful image properties <admin/useful-image-properties>
for details.
Resizing can take some time. During this time, the instance status
will be RESIZE:
$ openstack server list
+----------------------+----------------+--------+-----------------------------------------+
| ID | Name | Status | Networks |
+----------------------+----------------+--------+-----------------------------------------+
| 67bc9a9a-5928-47c... | myCirrosServer | RESIZE | admin_internal_net=192.168.111.139 |
+----------------------+----------------+--------+-----------------------------------------+When the resize completes, the instance status will be
VERIFY_RESIZE. You can now confirm the resize to change the
status to ACTIVE:
$ openstack server resize --confirm SERVERIf the resize fails or does not work as expected, you can revert the
resize. This will revert the instance to the old flavor and change the
status to ACTIVE:
$ openstack server resize --revert SERVER