By Kelvin Li in linux —

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 debug the juju hook issue
open in one terminal
$ juju debug-hook
in another terminal
juju resolved --retry elasticsearch/0

Share the same ssh identify in different window

  1. Start the agent from one window
`eval `ssh-agent`
  1. Start byobu
byobu
ssh-add -l
ssh-add
  1. After days finished the collaboration, remove the agent
ssh-add -d ~/kelvin/identiy.key
ctrl+A -> D will detach the yobo screen.