Update instances metadata with cli

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I have 40 instances runing and I need to set metadata to them ( example test=true ) with cli.

nova meta fce7eacda9744d81bba1fe872a0929ae set test=true

Does anyone have a simple script to set metadata to all instances ?

Not sure if the nova client allows you to do it, but with the openstack client, you can loop over all instances like this:

for i in $(openstack server list -c ID -f value)
do openstack server set property test=true $i
done

The column name might be “id” rather than “ID”; I can’t test the script right now.

Comments

Thanks.

A small correction of the script: for i in $(openstack server list -c ID -f value) do openstack server set $i --property test2=true done

foura1512 ( 2019-03-19 06:11:09 -0500 )edit