2-privatecloud · tp v1.0 v1.2 v1.4 v2.0 v2.2 v3.0 •develop & innovate •support the...

3/9/15

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GridKa School 2015

GridKa School 2015 Private Clouds

GridKa School 2015

Outline

•  Introduction to private clouds and IaaS •  OpenNebula

–  Introduction – CLI – Sunstone

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GridKa School 2015

What private clouds are

•  A “Public Cloud behind the firewall” – Simplify internal operations – Dynamic allocation of resources – Higher utilization & operational savings – Security concerns

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What Who On-demand access to any application

End-user (does not care about hw or sw)

Platform for building and delivering web

applications

Developer (no managing of the underlying hw

& swlayers)

Raw computer infrastructure

System Administrator (complete management of the

computer infrastructure)

Software as a Service

ﾺ

Platform as a Service

Infrastructure as a Service

Physical Infrastructure

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IaaS challenges •  How do I provision a new VM?

Image Management & Context •  Where do I store the disks?

Storage •  How do I set up networking for a multitier service?

Network & VLANs •  Where do I put my web server VM?

Monitoring & Scheduling •  How do I manage any hypervisor?

Virtualization •  Who has access to the Cloud’s resources?

User & Role Management •  How do I manage my distributed infrastructure?

Interfaces & APIs

Uniform management layer that orchestrates multiple technologies


Introduction to OpenNebula •  Adaptable: Integration capabilities to fit into any data center •  Enterprise-ready: Upgrade process and commercial support •  No Lock-in: Broad infrastructure and platform independent •  Light: Efficient & simple •  Proven: Rigorously tested, mature and widely used •  Powerful: Advanced features for virtualized •  Scalable: single instance & multi-tier architectures •  Be interoperable! rich set of API's & Interfaces •  Open Source: Apache License v2

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Reference Users

Survey Q2/Q3 2012 (2,500 users http://c12g.com/resources/survey/)


Introduction to OpenNebula

2005 2008 2009 2010 2011 2012

TP v1.0 v1.2 v1.4 v2.0 v2.2 v3.0

• Develop & innovate • Support the community • Collaborate

Third party scalability tests: 16,000 VMs

v3.2 v3.4 v3.6 v3.8

5,000 downloads/month

2014 2013

v4.0

Research Project

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GridKa School 2015

Introduction to OpenNebula

OpenNebula core

Virtualization Images

Storage Network

Auth

Monitoring

Scheduler

XML-RPC API

OCA (Ruby, Java)

CLI GUI Cloud Servers

DB

Languages


Interfaces, Tools & API •  CLI & Sunstone (GUI) •  API •  Cloud (EC2,OCCI) •  Service Management & Catalogs

Compute Hosts •  Grouped into logical clusters •  Multiple hypervisors •  Monitoring

Storage •  VM disks (file & block) •  Image Distribution •  Multiple Backends

Multi-tenancy •  AAA Services •  Scheduling •  Permissions & roles

Network •  VLAN •  Firewalling •  Multiple Technologies

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GridKa School 2015

•  Repository of VM images •  Multiple Backends (LVM, Ceph)

Monitoring,Virtualization, Storage and Network

•  Provides physical resources for the VMs •  Must have a hypervisor installed


What will be done

•  Basic management •  Both commands and web interface •  Accomplished through a sandbox

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GridKa School 2015

Sandbox preparation

•  What it is – CentOS 6.3 virtual machine image – Preconfigured OpenNebula 4.12 frontend

•  OpenNebula core •  Scheduler •  Sunstone GUI

– Virtualization host using QEMU


Sandbox preparation

•  Where do I get it –  http://opennebula.org/tryout/sandboxvirtualbox/

•  What do I need – 512M free RAM for the Virtual Machine – 3 GB of free disk space – 64-bit kernel

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Sandbox preparation

•  Steps – Download and uncompress the appliance – Start VirtualBox – Create a new Virtual Machine by clicking on

the New button. – Enter opennebula-sandbox in the Name

field, select Type Linux and Version Red Hat (64-bit)

– Select 512M for the Memory size


Sandbox preparation

•  Steps – Select Use an existing virtual hard drive

and select the uncompressed image downloaded previously by clicking in the folder icon

– Click on Create

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GridKa School 2015

Sandbox preparation

•  Steps – Under Machine → Settings, select the

Network option, click on the Advanced arrow, and you will see a Port Forwarding button

– Click on the icon that has a green plus sign and fill in 9869 both in the Host Port and Guest Port columns, leave all the other fields in blank

– Add another rule but with port number 29876 17 GridKa School 2015

Sandbox preparation

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GridKa School 2015

Sandbox preparation

•  Steps – Start the appliance – Log in

•  User: root •  Password: opennebula

– Load the required keymap •  Example: loadkeys de


CLI

•  OpenNebula runs as the openadmin user •  Switch to this user:

$ su - oneadmin •  All OpenNebula command names begin

with one*

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GridKa School 2015

CLI

•  onehost – Manages physical hosts

•  Create, delete, enable, disable, update, …

– The sandbox has already a host configured (itself) $ onehost list $ onehost show 0


CLI

•  onevnet – Manages virtual networks

•  Create, delete, add/remove leases, change permissions, …

– There is already a virtual network configured $ onevnet list $ onevnet show 0

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GridKa School 2015

CLI

•  oneimage – Manages VM images

•  Create, delete, clone, …

– There is already an image created $ oneimage list $ oneimage show 0


CLI

•  onetemplate – Manages OpenNebula templates

•  Create, delete, instantiate, …

– Existing VM templates can be shown $ onetemplate list $ onetemplate show 0

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GridKa School 2015

CLI

•  Templates – Some examples in $HOME/templates/

•  cloud.net: virtual network •  ttylinux-template.one: virtual machine •  ttylinux-image: virtual machine image


CLI

•  onevm – Creates VMs from a given template – Launch a VM

$ onevm create templates/ttylinux-template.one – List the launched instances

$ onevm list $ onevm show 0

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GridKa School 2015

CLI

•  onevm – Resources can be created without templates – Create a VM with double memory $ onevm create --name "tty-doublemem" --memory 256 --cpu 1 --disk ttylinux --nic cloud

– This VM cannot be launched $ onevm list $ onevm show 1 •  Look for “SCHED_MESSAGE” $ onehost list


CLI

•  onevm – Solution: remove first launched VM

$ onevm delete 0

– Re-check running instances $ onevm list

– Delete current running instance $ onevm delete 1

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GridKa School 2015

CLI

•  onevm – Create a VM with 2 virtual CPUs $ onevm create --name "tty-doublecpu" --memory 128 --cpu 1 --vcpu 2 --disk ttylinux --nic cloud – Check running instances


CLI

•  onevm – Suspend the running VM

$ onevm suspend 2

– Check its new status – Resume the VM

$ onevm resume 2

– Remove the VM

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GridKa School 2015

VM lifecycle


Sunstone

•  OpenNebula Cloud Operations Center •  A Graphical User Interface (GUI) intended for regular

users and administrators •  Simplifies the typical management operations in private

and hybrid cloud infrastructures. •  Allows to easily manage all OpenNebula resources and

perform typical operations on them.

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Sunstone

•  Create a user to launch VMs $ oneuser create myuser mypassword

•  Confirm its creation $ oneuser list $ oneuser show 2

•  Visit http://localhost:9869 –  Login: oneadmin –  Password: opennebula


Sunstone

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GridKa School 2015

Sunstone

•  Create and launch a VM – Virtual Resources → Virtual Machines – Click on the + button

•  Name: tty •  Template: ttylinux (id:0) •  Number of instances: 1



Sunstone

•  Access the VM – Once the VM is RUNNING, click on the

screen logo (right of the IP column) – Log in

•  Login: root •  Passwrd: password

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GridKa School 2015

Sunstone


Sunstone

•  Use the options in the Virtual Machines tab – Check the stats (below) – Reboot and delete (buttons above)

•  Create a new template – Virtual Resources → Template – Clone the existing template (Name: ttylinux2) – Click on the new template

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GridKa School 2015

Sunstone

•  Give User permissions to Other •  Click on Update •  General:

–  CPU: 1 –  VCPU: 2

•  Storage: ttylinux •  Network: cloud •  Input/Output: VNC •  Click on Update


Sunstone

•  Create and launch the VM – Virtual Resources → Virtual Machines – Click on the + button

•  Name: tty2 •  Template: ttylinux2 •  Number of instances: 1


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GridKa School 2015

Sunstone

OpenNebula Clusters –  Groups of hosts with associated datastores and

virtual networks –  Can be defined also through CLI

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Cluster level

GridKa School 2015

Sunstone

OpenNebula Clusters –  Infrastructure → Clusters –  Click on the + button

•  Name: cluster1 •  Click on different resources from Hosts, Virtual Networks

and Datastores

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GridKa School 2015

Sunstone

Example (High Availability) –  4CaaSt EU FP7 Project –  Physical scenario: 3 clusters

•  2 production clusters + 1 backup clusters •  Infrastructure from the FI-WARE Project (red.es)

–  Virtual scenario: 3 servers •  2 application servers + 1 load-balancer •  Active-Active configuration •  Application servers in different physical hosts


Sunstone

Example (High Availability) 1. One of the physical production clusters crashes 2. Service is still available 3. The missing virtual isautomatically re-spawned in the physical backup cluster

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HPC School 2013

GridKa School 2015

2-privatecloud · tp v1.0 v1.2 v1.4 v2.0 v2.2 v3.0 •develop & innovate •support the...

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