generate ssh key pair

Change-Id: I9f7cbdb0ba9379eed262cc211a5eff2be5b05f8a
diff --git a/roles/compute-node/files/remove-xos-components b/roles/compute-node/files/remove-xos-components
index 1b6fc42..2f2cf07 100755
--- a/roles/compute-node/files/remove-xos-components
+++ b/roles/compute-node/files/remove-xos-components
@@ -19,6 +19,9 @@
 UVT=$(which uvt-kvm)
 test -z $UVT || uvt-kvm list | xargs uvt-kvm destroy
 
+LXC=$(which lxc)
+test -z $LXC || lxc delete --force $(lxc list | grep "^| [^ ]" | awk '{print $2}')
+
 sudo apt-get remove --purge -y $(dpkg --get-selections | grep "nagioas\|juju\|nova\|neutron" | awk '{print $1}') &&sudo apt-get autoremove -y && sudo rm -rf /etc/juju /etc/neutron /home/ubuntu/.juju && sudo find / -name "*juju*" -exec rm -r \{\} \; && sudo rm -f /var/lib/uvtool/libvirt/images/*
 
 OVS=$(which ovs-vsctl)