cloud computing - christian baun...cloud computing openstack frankfurt university of applied...

Cloud ComputingOpenStackFrankfurt University of Applied SciencesFaculty of Computer Science and EngineeringNils Jorek, Nicolas Fleischer

1/24 OpenStack | Cloud Computing | 22.07.2019

Wissen durch Praxis stärkt

Agenda

Introduction

Cloud Service Type

Components

Packstack

Deployment

2/24 OpenStack | Cloud Computing |

Agenda

Introduction

Cloud Service Type

Components

Packstack

Deployment

OpenStack | Cloud Computing |

Why use OpenStack

Open sourceInfinite scalingSeveral ways of deploying a networkAllows abstraction layers between the network and the end-userapplicationOption to deploy third party devicesHas accessible Web-GUI


Agenda

Introduction

Cloud Service Type

Components

Packstack

Deployment


Cloud Types

Figure: Different types of cloud services - OpenStack: Iaas


Agenda

Introduction

Cloud Service Type

Components

Packstack

Deployment


Components

Figure: https://www.openstack.org/software/


https://www.openstack.org/software/

Components

ComputeStorageNetworkingImage ServiceIdentity ServiceDashboard


Compute: Nova

Provides virtual devices on demandSchedules virtual devicesInteracts with the identity service for authenitication


Storage types

Ephereal storage (Nova):Used for small applications with small dataObject storage (Swift):Accessible binary files via REST APIAllows bigger data to be managedBlock storage (Cinder):Persistent modules -> detaction and re-attaching doesn’t causedatalossRecommendable for very big amount data


Networking: Neutron

Handles management of the virtual networkProvides flexible network modelsAllows a user to create networks, control traffic and connectdevices or servers to the networksSupport for FWaaS (Firewall), VPNaaS (Virtual PrivateNetwork), LBaaS (Load Balancer)


Image Service: Glance

Manages the virtual machines within the cloudComponent based architectureScalable to big workloadsRecoverable when failing


Identity Service: Keystone

Provides credential validation and data about users and groupsUser = API consumerGroups = Container of usersData about projects and domains is fetched via the resourceservice


Dashboard: Horizon

Web based user interface for OpenStack modulesAllows managing cloud components without using the terminalAllows interaction with other OpenStack servicesHas lists and pie charts for the graphical representation ofmodulesIs extendable by users


Agenda

Introduction

Cloud Service Type

Components

Packstack

Deployment


Packstack

Tool to deploy several OpenStack parts by oneOpen source projectUsable only on CentOS or RHEL (Red Hat Enterprise Linux)Simplifies the installation process of OpenStack modulsCaution: Doesn’t guarantee to set up a safe cloud service


Agenda

Introduction

Cloud Service Type

Components

Packstack

Deployment


Deployment

Figure: Prequisites for setting up OpenStack via Packstack on CentOS to avoid problems caused by Neutron


Deployment

Figure: Downloading Packstack and installing the all in one version


Deployment

If you don’t want to have the whole installation you can also typein: $ packstack –gen-answer-file=answer.txtThen access the file via: $ vi answer.txtChange every entry as desiredAllows us to set up a cloud with only Glance, Nova and Neutron


Deployment

Figure: Example settings for a setup with only Glance, Nova and Neutron


Deployment

After installing the components retrieve the credentials forlogging in on Horizon$ cat keystonerc_admin will display the login dataNavigate to the IP used by the external bridge (differs from userto user - depending on settings)Login with the credentials fetched from keystone


Deployment

Figure: Overview over the images tab in Horizon


Deployment

Figure: Overview over the keypair tab


Deployment

Figure: Overview after adding an instance


Deployment

Figure: Accessible instance


Thank you for your attention!(If you were paying attention...)


Referenceshttps://www.openstack.com

https://www.rdoproject.org/install/packstack/


https://www.openstack.com

https://www.rdoproject.org/install/packstack/

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