Update README.md

README.md

-Automatic Update of Glance Images
-=================================
-
-This script automates the process of updating images of operating systems in OpenStack.
-
-### Currently the supported OS are:
-
-- CentOS 7
-- CentOS 8
-- Debian 9
-- Debian 10
-- ~~Fedora 28~~
-- ~~Fedora 29~~
-- Fedora 30
-- Fedora 31
-- Ubuntu 16.04
-- Ubuntu 18.04
-
-Installation
-------------
-
-	$ sudo apt install python3 python3-dev python3-pip -y 
-	$ pip3 install --upgrade pip
-	$ pip3 install -r requirements.txt
-	$ 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.
-
-### Update simplestreams
-After updating the images, update the simplestreams catalog:
-
-	$ openstack object list simplestreams
-	$ openstack object save simplestreams images/streams/v1/com.ubuntu.cloud-released-imagemetadata.json --file com.ubuntu.cloud-released-imagemetadata_backup.json
-	$ openstack object save simplestreams images/streams/v1/index.json --file index_backup.json
-
-	$ python3 generate-files-for-simplestream.py
-	$ cd output/simplestreams
-	$ ls -lh images/streams/v1/
-	$ openstack object create simplestreams images/streams/v1/com.ubuntu.cloud-released-imagemetadata.json images/streams/v1/index.json
-
-
-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
-
+Automatic Update of Glance Images
+=================================
+
+This script automates the process of updating images of operating systems in OpenStack.
+
+### Currently the supported OS are:
+
+- CentOS 7
+- CentOS 8
+- Debian 9
+- Debian 10
+- Debian 11
+- ~~Fedora 28~~
+- ~~Fedora 29~~
+- Fedora 30
+- Fedora 31
+- Ubuntu 16.04
+- Ubuntu 18.04
+- Ubuntu 20.04
+
+Installation
+------------
+
+	$ sudo apt install python3 python3-dev python3-pip -y 
+	$ pip3 install --upgrade pip
+	$ pip3 install -r requirements.txt
+	$ 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.
+
+### Update simplestreams
+After updating the images, update the simplestreams catalog:
+
+	$ openstack object list simplestreams
+	$ openstack object save simplestreams images/streams/v1/com.ubuntu.cloud-released-imagemetadata.json --file com.ubuntu.cloud-released-imagemetadata_backup.json
+	$ openstack object save simplestreams images/streams/v1/index.json --file index_backup.json
+
+	$ python3 generate-files-for-simplestream.py
+	$ cd output/simplestreams
+	$ ls -lh images/streams/v1/
+	$ openstack object create simplestreams images/streams/v1/com.ubuntu.cloud-released-imagemetadata.json images/streams/v1/index.json
+
+
+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
+