steps to work with the OpenStack instance via ssh
$ eval `ssh-agent -s`ssh-add`
nova delete dev-trusty
nova boot dev-trusty --flavor cpu4-ram8-disk50-ephemeral20 --image ddf5bd01-4926-40e3-a4c3-83a73f45554a --key_name kelvin_lcy02
nova add-secgroup dev-trusty custom-ssh
nova show dev-trusty
nova floating-ip-create
nova floating-ip-list
nova floating-ip-associate dev-trusty 162.2xx.x.xxx
Find which version of the app installed on ubunut
apt-cache policy ansible
HOW to