builing a hybrid cloud with open nebula

7/31/2019 Builing a Hybrid Cloud With Open Nebula

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BUILDING A HYBRID CLOUD WITH OpenNebula

OpenNebula connecting with

Private cloud [KVM hypervisor]and

Public cloud [Amazon EC2]

Table of Contents

Hardware/software requirements :...................................................................................................2Setup OpenNebula Host...................................................................................................................2Setup VM Host.................................................................................................................................3

Configure the OpenNebula host:.................................................................................................4Configure the VM host:...............................................................................................................5Install OpenNebula in Ubuntu server [OpenNebula host]:..........................................................6

Prepare Amazon EC2 :......................................................................................................................9

Install EC2 API Library and tools in OpenNebula and configure OpenNebula ........................9Create EC2 Host and VM in OpenNebula ...............................................................................12Connecting to your new EC2 instance :.....................................................................................13Creating a instance in Private cloud:........................................................................................14Terminate an EC2 instance through OpenNebula.....................................................................16

ANIL KUMAR A NChennai

[email protected]@cloud-b-lab.co.in

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Hybrid cloud setup with OpenNebula

Hardware/software requirements :

OpenNebulaFrontend [OneHost]

A VT enabled hardware with Ubuntu 11.04 or 11.10 server installedHostname : OneHostIP address [eth0] : 192.168.1.104Gateway : 192.168.1.1username : localadmin

VM Host [nodekvm] A VT enabled hardware with Ubuntu 11.04 or 11.10 server installedHostname : nodekvmIP address[br0] : 192.168.1.105

Gateway : 192.168.1.1username : localadmin

Network setup A router with minimum two Ethernet ports and internet connectivity

Setup OpenNebula Host

Before installation of OpenNebula in Ubuntu Server , just check the following to ensure that youhave a proper setup.

/etc/network/interfaces # The loopback network interfaceauto loiface lo inet loopback

# The primary network interfaceauto eth0iface eth0 inet static

address 192.168.1.104netmask 255.255.255.0network 192.168.1.0broadcast 192.168.1.255gateway 192.168.1.1# dns-* options are implemented by the resolvconf package, if installeddns-nameservers 192.168.1.1dns-search example.com

/etc/hosts 127.0.0.1 localhost192.168.1.104 OneHost.example.com OneHost

/etc/resolv.conf search example.comnameserver 192.168.1.1

Setup VM Host

/etc/network/interfaces # The loopback network interfaceauto loiface lo inet loopback

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# The primary network interfaceauto eth0iface eth0 inet manual

auto br0iface br0 inet static

address 192.168.1.105netmask 255.255.255.0network 192.168.1.0broadcast 192.168.1.255gateway 192.168.1.1# dns-* options are implemented by the resolvconf package, if installeddns-search westel.com

bridge_ports eth0bridge_fd 9

bridge_hello 2bridge_maxage 12bridge_stp off

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Configure the OpenNebula host:

Create a folder "cloud" and create a group named "cloud"

sudo mkdir -p /srv/cloud/

sudo groupadd -g 10000 cloud

Create a user "oneadmin" , add user to group "cloud" and have /srv/cloud/oneas home folder.

sudo useradd -u 10000 -m oneadmin -d /srv/cloud/one -s /bin/bash -g cloud

Setup password for "oneadmin" and make oneadmin owner of "/srv/cloud"

sudo passwd oneadmin - I chose redhat123 as the password

sudo chown -R oneadmin:cloud /srv/cloud/

Test by logging as user "oneadmin" and exit

su -l oneadmin

exit

Install Network file Server [NFS] Not a must for EC2 integration

sudo apt-get install nfs-kernel-server

edit /etc/exports and add the following line to make folder

/srv/cloud/one/var shareable with ESXi server. We will configure ESXi serverlater.

/srv/cloud/one192.168.1.105(rw,fsid=0,nohide,sync,root_squash,no_subtree_check)

Restart NFS server

sudo /etc/init.d/nfs-kernel-server start

create a SSH key for oneadmin and disable host key checking else make allhostkeys known on the OpenNebula node.

su -l oneadmin

ssh-keygen

{Note- all defaults, and no passphrase.}

cat ~/.ssh/id_rsa.pub > ~/.ssh/authorized_keys

nano ~/.ssh/config

[add below two lines to SSH config file]Host *StrictHostKeyChecking no

exit

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Configure the VM host: The VM hosts need to be able to access the home directory of the OpenNebula user. Therefore install NFS

common

sudo apt-get install nfs-common

Add an NFS entry for /srv/cloud/one in /etc/fstab (change 192.169.1.104 to the local IP of your OpenNebula host):

sudo nano /etc/fstab

192.168.1.104:/srv/cloud/one /srv/cloud/one nfs defaults 0 0

Now create and mount the directory:

sudo mkdir -p /srv/cloud/one

sudo mount /srv/cloud/one

Create oneadmin user:

sudo groupadd -g 10000 cloud

sudo useradd -u 10000 -g cloud -m oneadmin -s /bin/bash

sudo usermod -d /srv/cloud/one oneadmin

sudo passwd oneadmin

sudo chown oneadmin:cloud /srv/cloud/

Install packages for the KVM hypervisor

sudo apt-get install qemu-kvm libvirt-bin ubuntu-vm-builder bridge-utils ruby

Configure libvirt to allow users from the group cloud to manage virtual machinessudo nano /etc/libvirt/libvirtd.conf

unix_sock_group = "cloud"

Configure VNC to be accessible from the outside. For a production environment, VNC should be secured by TLScertificates (see below):

sudo vi /etc/libvirt/qemu.conf

vnc_listen = "0.0.0.0"

sudo service libvirt-bin restart

Change group ownership for /var/run/libvirt/libvirt-sock to allow access by users of the cloud group

sudo chown :cloud /var/run/libvirt/libvirt-sock

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Install OpenNebula in Ubuntu server [OpenNebula host]:

Login to 192.168.1.98[OneHost] and download OpenNebula Release 3.2.1

su -l oneadminDownload stable opennebula release for ubuntu [opennebula-3.2.1.tar.gz] from http://downloads.opennebula.org/and save it in /srv/cloud/one folder.Also add oneadmin to sudoers file with permissions same as root,

Un-tar the build

tar xzf opennebula-3.2.1.tar.gzcd opennebula-3.2.1//

Before installing OpenNebula, install all pre-requisite packages

sudo apt-get install libsqlite3-dev libxmlrpc-c3-dev g++ ruby libopenssl-ruby libssl-dev ruby-devsudo apt-get install libxml2-dev libmysqlclient-dev libmysql++-dev libsqlite3-ruby libexpat1-devsudo apt-get install libc6 libgcc1 libmysqlclient16 libpassword-ruby libsequel-ruby libsqlite3-0 libssl0.9.8 libstdc++6 libxml2 libxmlrpc-c3-0libxmlrpc-core-c3-0sudo apt-get install ruby rubygems libmysql-ruby libsqlite3-ruby libamazonec2-rubysudo apt-get install rake rubygems libxml-parser-ruby1.8 libxslt1-dev genisoimage sconssudo gem install nokogiri rake xmlparsersudo apt-get install opennebula-common [optional]sudo apt-get install mysql-server [ set the password when asked. I normally give mygreatsecret as the pwd]

configure MYSql:


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Before installing OpenNebula, configure mysql support as oneadmin user

cd ~/opennebula-3.2.1 [change your folder to opennebula source]scons sqlite=no mysql=yes

Install openebula in /srv/cloud/one accessible by group cloud and asuser "oneadmin"

./install.sh -u oneadmin -g cloud -d /srv/cloud/one

Create a profile file[~/.bash_profile] to set ENVIRONMENT VARIABLESrequired to start and use services rendered by "one"

nano ~/.bash_profileexport ONE_LOCATION=/srv/cloud/oneexport ONE_AUTH=$ONE_LOCATION/.one/one_authexport ONE_XMLRPC=http://localhost:2633/RPC2export PATH=$ONE_LOCATION/bin:/usr/local/bin:/var/lib/gems/1.8/bin/:/var/lib/gems/1.8/:$PATH

execute the profile file and set the environment variables

source ~/.bash_profile

[Note: Anytime you open a new SSH window for OneHost, change user to oneadmin and

source ~/.bash_profile before issuing any one command]

Create and store OpenNebula user and password in a file. Substitute with value

mkdir ~/.oneecho "oneadmin:" > ~/.one/one_auth

Make required changes in OpenNebula configuration file ~/etc/oned.conf

nano ~/etc/oned.conf

a. comment following line # Line 58 or near by [c hange if your password for oneadmin is some different]

#DB = [ backend = "sqlite" ]b. Set SQL as MYSQL-uncomment #lines 61 through 66 or near by

DB = [ backend = "mysql",server = "localhost",port = 0,user = "oneadmin",passwd = "oneadmin",db_name = "opennebula" ]

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Start OpenNebulaone start { Note: it should start with no error messages}

Now You can test OpenNebula services by typing onevm list on the $prompt. The command should execute with no error.The list will be emptyfor now.

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Prepare Amazon EC2 :

Create an Amazon account

Go to http://aws.amazon.com, and click Create an AWS Account.

Follow the on-screen instructions.

Part of the sign-up procedure involves receiving a phone call and entering a PIN using the phone keypad.

Refer: http://docs.amazonwebservices.com/AWSEC2/latest/GettingStartedGuide/SignUp.html

Create credentials

make a folder ec2 with in /srv/cloud/one/

After signing up, you should end up at the EC2 console

Create a key pair and download the private key

Click Key Pairs under Networking and Security in the Navigation pane and then click the Create KeyPair button

(save it in e.g. ~/.ec2/ec2.pem). This private key is for making SSH connections to newly createdinstances.

You will also need to set up your Amazon API credentials.

Go to Account->Security Credentials

click X.509 Certificates tab

Create a new Certificate

Download the private key and the certificate (save them in e.g. ~/.ec2/cert-XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.pem and ~/.ec2/pk-XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.pem).

Never share these files .

Make your credential files private: chmod go-rwx ~/.ec2/*.pem 5.

Scroll to the bottom of the page and note your account ID (a number of the form XXXX-XXXX-XXXX).

Create a Ubuntu instance in EC2[http://docs.amazonwebservices.com/AWSEC2/latest/GettingStartedGuide/LaunchInstance.html]

Note the AMI- ID ,as we need to specify it in onevm template later

Create an Elastic IP using NETWORK and SECURITY section and note the IP.

Install EC2 API Library and tools in OpenNebula and configure OpenNebula

Install EC2 API tools in Openenbula frontend machine

Login to openNebula Front-end machine [onehost] as root user and perform the following stepsapt-get update

Install the Amazon EC2 Query API library:gem install amazon-ec2

Install the Sinatra web framework and the thin web server:[if you get Invalid gemspec in [/var/lib/gems/1.8/specifications/tilt-1.3.3.gemspec]: invalid date format inspecification: "2011-08-25 00:00:00.000000000Z"

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http://aws.amazon.com/http://docs.amazonwebservices.com/AWSEC2/latest/GettingStartedGuide/LaunchInstance.htmlhttp://aws.amazon.com/http://docs.amazonwebservices.com/AWSEC2/latest/GettingStartedGuide/LaunchInstance.html


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Type below on the command prompt as root user:sudo sed -i 's/ 00:00:00.000000000Z//' /var/lib/gems/1.8/specifications/*]

gem install sinatragem install thingem install uuidgem install curbapt-get install libsqlite3-rubyapt-get install libcurl4-gnutls-devapt-get install openssl libruby1.8gem install sqlite3-rubyapt-get install openjdk-6-jdk

The service is configured through the $ONE_LOCATION/etc/econe.conf file

Edit $ONE_LOCATION/etc/econe.conf and update the following:SERVER=:PORT=4567

Check if multiverse is enabled in Ubuntu 11:10 server

sudo nano /etc/apt/sources.list

if commented , uncomment the followingdeb http://in.archive.ubuntu.com/ubuntu/ oneiric multiversedeb-src http://in.archive.ubuntu.com/ubuntu/ oneiric multiversedeb http://in.archive.ubuntu.com/ubuntu/ oneiric-updates multiversedeb-src http://in.archive.ubuntu.com/ubuntu/ oneiric-updates multiverse

Login as oneadmin user

Make sure you have the following environment variables set up in your shellprofile. This is accomplished by adding the following lines to your~/.bash_profile :

sudo nano ~/.bash_profileexport EC2_KEYPAIR= # name only, not the file name

export EC2_URL=https://ec2..amazonaws.com # example: ec2.us-east-1.amazonaws.comexport EC2_PRIVATE_KEY=//pk-XXXXXXXXXXXXXXXXXXXXXXXXXXXX.pem # Thevalue of the EC2_PRIVATE_KEY environment variableexport EC2_CERT=//cert-XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.pem # The X.509certificate to use when constructing requests to Amazon EC2export JAVA_HOME=/usr/lib/jvm/java-6-openjdk/

Load the changes into the current shell environment:

source ~/.bash_profile

Check to see if it's working by running the following command:

ec2-describe-images -o self -o amazon

If above step fails due to "Client.AuthFailure" then ensure you have signed upfor both AWS and ec2 with amazon.com, and have provided valid payment details.

Also double check that the EC2_PRIVATE_KEY and EC2_CERT point to the correct

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https://ec2/https://ec2/


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locations

Create a AMI using a running/stopped EC2 instance

ec2-create-image --name -K -C -v-U example: I am using the already sourced environment values:ec2-create-image i-5ccd593b --name ubuntu1110x64 -K $EC2_PRIVATE_KEY -C $EC2_CERT -v -U $EC2_URL

Edit File: /srv/cloud/one/etc/vmm_ec2/vmm_ec2rc and add below lines

nano /srv/cloud/one/etc/vmm_ec2/vmm_ec2rc

EC2_HOME=/usr # find the installed location of ec2-api-tools and provide the path here. For me it is /usr {/bin will appended by theprogram itself }

EC2_URL=https://ec2.us-east-1.amazonaws.comEC2_PRIVATE_KEY=//pk-XXXXXXXXXXXXXXXXXXXXXXXXXXXX.pemEC2_CERT=//cert-XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.pemJAVA_HOME=/usr/lib/jvm/java-6-openjdk/

Edit File: /srv/cloud/one/etc/oned.conf and make the following changes

# KVM Information Driver Manager Configuration#-------------------------------------------------------------------------------IM_MAD = [

name = "im_kvm",executable = "one_im_ssh",arguments = "-r 0 -t 15 kvm" ]

#-------------------------------------------------------------------------------

# EC2 Information Driver Manager Configuration#-------------------------------------------------------------------------------IM_MAD = [

name = "im_ec2",executable = "one_im_ec2",arguments = "im_ec2/im_ec2.conf" ]

#-------------------------------------------------------------------------------# KVM Virtualization Driver Manager Configuration#-------------------------------------------------------------------------------VM_MAD = [

name = "vmm_kvm",executable = "one_vmm_exec",arguments = "-t 15 -r 0 kvm",default = "vmm_exec/vmm_exec_kvm.conf",type = "kvm" ]

#-------------------------------------------------------------------------------

# EC2 Virtualization Driver Manager Configuration

VM_MAD = [name = "vmm_ec2",executable = "one_vmm_ec2",arguments = "-u https://ec2.us-east-1.amazonaws.com -k //pk-

XXXXXXXXXXXXXXXXXXXXXXXXXXXX.pem -c //cert-XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.pem

-h vmm_ec2/vmm_ec2.conf",type = "xml" ]

#-------------------------------------------------------------------------------# Dummy Transfer Manager Driver Configuration#-------------------------------------------------------------------------------

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TM_MAD = [name = "tm_dummy",executable = "one_tm",arguments = "tm_dummy/tm_dummy.conf" ]

#-------------------------------------------------------------------------------# SHARED Transfer Manager Driver Configuration#-------------------------------------------------------------------------------TM_MAD = [

name = "tm_nfs",executable = "one_tm",arguments = "tm_shared/tm_shared.conf" ]

Create EC2 Host and VM in OpenNebula

Start one server as oneadmin user

source ~/.bash_profileone start

Add EC2 host to OpenNebula

onehost create ec2 im_ec2 vmm_ec2 tm_dummy dummy

You will get an output like

ID NAME RVM TCPU FCPU ACPU TMEM FMEM AMEM STAT0 ec2 0 500 500 500 8.5G 8.5G 8.5G on

Create a OpenNebula template file to launch an Instance in Amazon EC2nano ~/ec2.one

Add the following content to ec2.one , save and exit

CPU = 0.5MEMORY = 128

# KVM template - this will be usedwhen submitting this VM to local resource[private cloud]# NAME = ttylinux#DISK = [ source = "/srv/cloud/one/ec2/ttylinux.img", target = "hda", readonly = "no" ]#NIC = [ NETWORK = "Small network" ]#FEATURES=[ acpi="no" ]

#EC2 template to submit a VM to EC2 [public cloud]NAME = EC2EC2 = [ AMI="",

KEYPAIR="",ELASTICIP="",AUTHORIZED_PORTS="22",INSTANCETYPE=m1.small]

#Add this if you want to use only EC2 cloud#REQUIREMENTS = 'NAME = "ec2"'

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Launch the Instance in Amazon EC2onevm create ec2.one

Monitor the log files in ~/var/oned.log and ~/var//vm.log

oned.log:Mon Apr 16 01:03:51 2012 [DiM][I]: New VM state is ACTIVE.Mon Apr 16 01:03:51 2012 [LCM][I]: New VM state is PROLOG.Mon Apr 16 01:03:51 2012 [VM][I]: Virtual Machine has no contextMon Apr 16 01:03:51 2012 [DiM][D]: Deploying VM 1Mon Apr 16 01:03:51 2012 [LCM][I]: New VM state is BOOTMon Apr 16 01:14:16 2012 [VMM][D]: Message received: LOG I 1 ExitCode: 0Mon Apr 16 01:14:10 2012 [VMM][I]: Monitoring VM 1.Mon Apr 16 01:14:16 2012 [VMM][D]: Message received: POLL SUCCESS 1 USEDMEMORY=0 USEDCPU=0 NETTX=0 NETRX=0 STATE=a IP=ec2-23-23-200-8.compute-1.amazonaws.com

vm.log:

Mon Apr 16 01:03:51 2012 [TM][D]: Message received: TRANSFER SUCCESS 1 -Mon Apr 16 01:04:04 2012 [VMM][D]: Message received: LOG I 1 ExitCode: 0Mon Apr 16 01:03:51 2012 [VMM][I]: Generating deployment file: /srv/cloud/one/var/1/deployment.0Mon Apr 16 01:04:04 2012 [VMM][D]: Message received: DEPLOY SUCCESS 1 i-5ab7263dMon Apr 16 01:03:58 2012 [VMM][I]: ExitCode: 0Mon Apr 16 01:04:04 2012 [VMM][I]: ExitCode: 0Mon Apr 16 01:04:04 2012 [LCM][I]: New VM state is RUNNINGMon Apr 16 01:14:16 2012 [VMM][W]: Adding custom monitoring attribute: IP ec2-23-23-200-8.compute-1.amazonaws.comMon Apr 16 01:14:16 2012 [VMM][D]: Monitor Information:

Just note the monitoring attribute: IP {ec2-23-23-200-8.compute-1.amazonaws.com}from thelog, [You can get it from EC2 console also]. We need it to SSH to the instance

On successful creation you will get following output

onevm list

ID USER GROUP NAME STAT CPU MEM HOSTNAME TIME4 oneadmin oneadmin one-1 runn 0 0K ec2 00 00:02:21

Login in AMAZON EC2 management console and check the status of the instance. It should be running in awhile

Connecting to your new EC2 instance :

In order to log in to your instance, you will need to authorize network access to the ssh port for the defaultsecurity group: {if you have created a different security group and already added SSH to it, just skip below

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step}

ec2-authorize default -p 22

You may then log in to the instance using ssh:

ssh -i ubuntu@

example : ssh -i ~/.ec2/ec2.pem [email protected]

The is the filename of the private SSH key that corresponds to the Amazon KeyPair that you specified in the ec2-run-instances command. The can be found usingthe ec2-describe-instances command. An example SSH command:

Once you have logged in, you may begin to set up and use the instance just like any other Ubuntumachine.

Creating a instance in Private cloud:

ADD a KVM host to OpenNebula

onehost create nodekvm im_kvm vmm_kvm tm_nfs dummy

onehost list [you will see both EC2 host and the newly added nodekvm]

ID NAME RVM TCPU FCPU ACPU TMEM FMEM AMEM STAT0 ec2 1 500 500 450 8.5G 8.5G 8.3G on3 nodekvm 1 800 800 750 7.8G 7.6G 7.6G on

Create virtual network using a template SmallNetwork.netSudo nano Small network.net

NAME = "Small network"TYPE = FIXED#Now we'll use the cluster private network (physical)BRIDGE =br0LEASES = [ IP="192.168.1.50"]LEASES = [ IP="192.168.1.60"]

Create a onevet

onevnet create SmallNetwork.net

Download ttylinux.img from opennebula.org and untar it in ~/ec2 folder

$ wget http://dev.opennebula.org/attachments/download/170/ttylinux.tar.gz$ tar xvzf ttylinux.tar.gz

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Uncomment the KVM Template portion in EC2.one to create an instance in nodekvm

#EC2 template machine, this will be use wen submitting this VM to EC2

CPU = 0.5MEMORY = 256NAME = ttylinuxDISK = [ source = "/srv/cloud/one/ec2/ttylinux.img", target = "hda", readonly = "no" ]NIC = [ NETWORK = "Small network" ]FEATURES=[ acpi="no" ]

#EC2 template to submit a VM to EC2 [public cloud]NAME = EC2EC2 = [ AMI="",

KEYPAIR="",ELASTICIP="",AUTHORIZED_PORTS="22",INSTANCETYPE=m1.small]

#Add this if you want to use only EC2 cloud#REQUIREMENTS = 'NAME = "ec2"'

Create an instance in nodekvm

onevm create ec2.one

List the running VMs

onevm list

oneadmin@onehost:~/ec2$ onevm listID USER GROUP NAME STAT CPU MEM HOSTNAME TIME

4 oneadmin oneadmin one-1 runn 0 0K ec2 00 00:02:215 oneadmin oneadmin ttylinux runn 3 256M nodekvm 00 01:53:31

Get IP details of the running VMs

oneadmin@onehost:~/ec2$ onevm show 4 | grep IP

ELASTICIP=23.23.200.8,IP=ec2-23-23-200-8.compute-1.amazonaws.comoneadmin@onehost:~/ec2$

oneadmin@onehost:~/ec2$ onevm show 5 | grep IPELASTICIP=23.23.200.8,IP=192.168.1.50,

Connect to both EC2 and ttylinux instances

ssh -i [email protected]

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mailto:oneadmin@onehostmailto:oneadmin@onehostmailto:[email protected]:[email protected]:oneadmin@onehostmailto:[email protected]


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oneadmin@onehost:~/ec2$ ssh -i cloudblab1.pem [email protected] to Ubuntu 11.10 (GNU/Linux 3.0.0-16-virtual x86_64)* Documentation: https://help.ubuntu.com/System information as of Mon Apr 16 10:13:04 UTC 2012System load: 0.0 Processes: 54Usage of /: 13.5% of 7.87GB Users logged in: 0Memory usage: 2% IP address for eth0: 10.60.9.106Swap usage: 0%Graph this data and manage this system at https://landscape.canonical.com/

Get cloud support with Ubuntu Advantage Cloud Guesthttp://www.ubuntu.com/business/services/cloud

ubuntu@ip-10-60-9-106:~$ logoutConnection to ec2-23-23-200-8.compute-1.amazonaws.com closed.

ssh root@ 192.168.1.50

oneadmin@onehost:~/ec2$ ssh [email protected]@192.168.1.50's password:Chop wood, carry water.# Use "logout" to leave the shell.# Use "logout" to leave the shell.# exitlogoutConnection to 192.168.1.50 closed.

Terminate an EC2 instance through OpenNebula

onevm shutdown

That's it. You have successfully implemented a hybrid cloud using OpenNebula.Refer my other tutorials and try Contextualization, running a windows VM etcIf you liked this tutorial , just post your comments to

ANIL KUMAR A [email protected]@cloud-b-lab.co.in

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builing a hybrid cloud with open nebula

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