OpenStack

Show all instances on a specific compute node

openstack --os-cloud admin server list --all-projects --host 54-02

Show all running instances

openstack --os-cloud admin server list --all-projects --power-state running

Enable Luks Encryption

Configuration reference: https://docs.openstack.org/cinder/latest/configuration/block-storage/volume-encryption.html

Look into the luks sections in cinder and nova to enable it:

Cinder
Nova

openstack --os-cloud admin volume type create \
--encryption-provider luks \
--encryption-cipher aes-xts-plain64 \
--encryption-key-size 256 \
--encryption-control-location front-end LUKS