Openstack Tutorial - Introduction to Cloud and Openstack Cloud
Cloud computing is a model of providing widely accessible and convenient access via network to a common set of adjustable computational resources on demand (e.g. networks, servers, data storages etc). These resources can be promptly allocated and released with minimum customer efforts spent for management and interactions with service provider.
The user gets control over all levels of the software stack above the cloud platform—virtual machines, networks, space volume at data storage system.
The user is an administrator of the operation system and all the work above it to the applications.
OpenStack is an example of IaaS.
The cloud of this model can exist “inside” the cloud of the IaaS model.
User gets control on the level of the platform applications built, for example, applications server, libraries, programming environment, and database.
The user does not control and does not administer virtual machines and operational systems deployed on them, data storage systems, and networks.
Red Hat OpenShift is an examples of PaaS.

OpenStack is an open source cloud software that provides cloud infrastructure for virtual machines, bare metal machines and containers. In this series of lectures, you will gain a in-depth understanding of what OpenStack is and you will learn to setup up and manage OpenStack cloud on Ubuntu 20.04
The Setup will have a Three node Cluster.
In this lecture you will learn about cloud computing, various service models of cloud and Openstack Cloud.
In this case, the user level of control is for only the application itself.
The user would be unaware of what the virtual machine or the operational system is and would only work with the application.
Examples of such products are Google Docs or Microsoft Office 365.
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0:00 Introduction
5:01 Cloud Service Models
6:29 Platform as a service (PaaS)
9:41 Software as a service (SaaS)
10:33 Cloud Services - Management Responsibilities
13:18 Deployment Models
17:06 Components That Make Up OpenStack
19:18 What is OpenStack
23:56 OpenStack is Open Source
25:36 OpenStack Compute - Nova
28:54 OpenStack Networking
30:02 OpenStack Keystone Identification Service
32:15 OpenStack Image Service
32:52 OpenStack Block Storage - Cinder
33:41 OpenStack Object Storage - Swift
35:28 OpenStack Orchestration - Heat
36:29 OpenStack Dashboard - Horizon
37:21 History of OpenStack Project - 1/3
40:42 OpenStack Development
41:21 OpenStack Distribution and Vendors

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