Ubuntu How to rerun cloud-init manually

1)
$rm -rf /var/lib/cloud/*
OR
$rm -rf /var/lib/cloud/sem/* /var/lib/cloud/instance /var/lib/cloud/instances/*

2)
$cloud-init init

$cloud-init modules -m final

3)
$tail -f /var/log/cloud-init.log

$tail -f /var/log/cloud-init-output.log

How to run cloud-init manually

1)
$rm -rf /var/lib/cloud/*
OR
$rm -rf /var/lib/cloud/sem/* /var/lib/cloud/instance /var/lib/cloud/instances/*

2)
$cloud-init init

$cloud-init modules -m final

3)
$tail -f /var/log/cloud-init.log

$tail -f /var/log/cloud-init-output.log

cloud-init Introduction

http://docs.openstack.org/user-guide/content/user-data.html

https://help.ubuntu.com/community/CloudInit

Source code of cloud-init
https://launchpad.net/cloud-init