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README.md
config.yml
update-images.py
README.md

Automatic Update Glance Images

This script automates the process of updating images of operating systems in OpenStack.

Currently the supported OS are:

  • CentOS 6
  • CentOS 7
  • Debian 8
  • Debian 9
  • Ubuntu 14.04
  • Ubuntu 16.04

Installation

$ sudo apt install python3 python3-dev python3-pip -y 
$ pip3 install --upgrade pip
$ pip3 install datetime shade tqdm python-openstackclient
$ git clone https://git.garr.it/cloud/admin/update-images.git

Usage

Source the admin credentials to gain access to OpenStack commands:

$ source admin.rc

Execute the script

$ python3 update-images.py

Execution example

$ python3 update-images.py
Download...
From: http://cloud.centos.org/centos/7/images/CentOS-7-x86_64-GenericCloud.qcow2
To:   downloads/centos7-1505262668.qcow2
downloads/centos7-1505262668.qcow2: 100%|████| 855M/855M [05:08<00:00, 2.77MB/s]
Download...
From: https://cdimage.debian.org/cdimage/openstack/current-9/debian-9-openstack-amd64.qcow2
To:   downloads/debian9-1507104230.qcow2
downloads/debian9-1507104230.qcow2: 585MB [00:32, 18.0MB/s]
Download...
From: https://cloud-images.ubuntu.com/releases/16.04/release/ubuntu-16.04-server-cloudimg-amd64-disk1.img
To:   downloads/ubuntu-16.04-1505853444.qcow2
downloads/ubuntu-16.04-1505853444.qcow2: 100%|████| 291M/291M [03:31<00:00, 1.37MB/s]

Images are now present in OpenStack Glance. This script uploads all the images as 'Public', accessible by all users.

Pipeline

  1. Fetch from config.yaml the url
  2. Download locally (in 'download' folder) the updated qcow2 of specified operating system
  3. Upload the qcow2 image on glance using openstack-cli commands

Notes

This script is tested on Ubuntu 16.04 x64