cd ~/go/src/github.com/harmony-one/experiment-deploy/ansible
# update to latest version
git pull --rebase
ssh-add -l
# you should see the california key, like
2048 SHA256:fLo0HQXgwnfnlcVaZDpv6CA6p2QJ1bnVvnGv6nhOn/c /home/lc/.ssh/keys/california-key-benchmark.pem
If not, please add it
ssh-add ~/.ssh/keys/california-key-benchmark.pem
ansible-playbook -e 'upgrade=upgrade inventory=intexp' playbooks/upgrade-node.yml