patternMinor

openstack instance metadata

Submitted by: @import:stackexchange-devops·Mar 10, 2026·

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instancemetadataopenstack

Problem

With Openstack Nova CLI I could set or get instance metadata with nova meta set/get ... but with the openstack "all-in-one" CLI that option does not exist.

Is it possible to work with instance metadata with the openstack client?

PS: Someone with privileges to create tags could create openstack , openstack-nova and openstack-cli ?

Solution

Just browsing through the available options, it looks like the nova meta actions may be available as openstack server set:

$ openstack help server set
usage: openstack server set [-h] [--name ] [--root-password]
                            [--property ] [--state ]
                            

Set server properties

positional arguments:
                Server (name or ID)

optional arguments:
  -h, --help            show this help message and exit
  --name      New server name
  --root-password       Set new root password (interactive only)
  --property 
                        Property to add/change for this server (repeat option
                        to set multiple properties)
  --state        New server state (valid value: active, error)

E.g., if I run:

openstack server set myserver --property foo=bar

And then run:

openstack server show myserver

I see:

[...]
| properties                           | foo='bar'                                                |
[...]

Code Snippets

$ openstack help server set
usage: openstack server set [-h] [--name <new-name>] [--root-password]
                            [--property <key=value>] [--state <state>]
                            <server>

Set server properties

positional arguments:
  <server>              Server (name or ID)

optional arguments:
  -h, --help            show this help message and exit
  --name <new-name>     New server name
  --root-password       Set new root password (interactive only)
  --property <key=value>
                        Property to add/change for this server (repeat option
                        to set multiple properties)
  --state <state>       New server state (valid value: active, error)

openstack server set myserver --property foo=bar

openstack server show myserver

[...]
| properties                           | foo='bar'                                                |
[...]

Context

StackExchange DevOps Q#1769, answer score: 1

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