Installing and Basic Usage - EGI (Indico) · Installing and Basic Usage 10 Installation node 1 -...

Installing and Basic Usage

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Acknowledgments

The research leading to these results has received funding from the

European Union's Seventh Framework Programme ([FP7/2007-2013])

under grant agreement n° 612053 (CloudCatalyst Project)

Creative Commons Attribution-NonCommercial-ShareAlike License

Carlos Martín

OpenNebula Project Engineer

EGI Community Forum

Helsinki, 19-23 May 2014

2 Installing and Basic Usage

Agenda

Installing and Basic Usage

● Planning the Installation

● Installation (node 1 - Frontend)

● Installation (node 2 - WorkerNode)

● Configuration

● Basic Usage

● Managing Hosts

● Images, Networks, Templates and VMs

● Managing Users, Quotas and ACLs

● Logging & Debugging


OpenNebula Views

Different perspectives for different users

OpenNebula

Admin VDCAdmin

Cloud User


OpenNebula Views

Configure your Cloud from the Admin perspective

OpenNebula

Admin VDCAdmin

Cloud User


A Typical OpenNebula Environment

Planning the Installation

• Repository of VM images

• Multiple Backends (LVM, Ceph)

Monitoring,Virtualization,

Storage and Network

• Provides physical resources for the VMs

• Must have a hypervisor installed


Virtual Lab

Planning the Installation

NODE 1 NODE 2


Virtual Lab

Installing

● Start node1. node2 must be started after node1

● You can access them from:

1. VirtualBox GUI

2. Console/putty

● node1 (password centos)

● node2 (password centos)

$ ssh localhost -l root -p 2222

$ ssh localhost -l root -p 2223


Installation node 1 - Frontend

Installing

Hands on (node1) !

● Install Packages

● Configure the OpenNebula Services

# yum install opennebula-server opennebula-sunstone

opennebula-node-kvm opennebula-flow opennebula-gate

# sed -i 's/"kvm" ]/"qemu" ]/' /etc/one/oned.conf

# echo 'ONEGATE_ENDPOINT = "http://1.1.1.1:5030"' >> /etc/one/oned.conf

# sed -i 's/127.0.0.1/0.0.0.0/' /etc/one/sunstone-server.conf

# sed -i '/^:market/d' /etc/one/sunstone-server.conf

# echo ':marketplace_url: http://localhost:6242/appliance' >> \

/etc/one/sunstone-server.conf

# sed -i 's/127.0.0.1/0.0.0.0/' /etc/one/onegate-server.conf



Installing

Hands on (node1) !

# chmod 755 /etc/one

# gpasswd -a oneadmin wheel

# service opennebula start

# service opennebula-sunstone start

# service libvirtd restart

# su - oneadmin

$ oneuser show

$ oneuser -h

● Start the services

● Overview of the CLI



Installing

Hands on (node1) !

● OpenNebula CLI Commands

$ one[TAB]

oneuser Manage Users oneimage Manage Images

onegroup Manage Groups onetemplate Manage Templates

oneacl Manage ACLs onevm Manage VMs

onehost Manage Hosts oneacct Accounting Tool

onecluster Manage Clusters onemarket Marketplace Tool

onevnet Manage Networks onedb DB Tool

onedatastore Manage Datastores


Installation node 2 – Worker Node

Installing

Hands on (node2) !

● Install Packages

# yum install opennebula-node-kvm

# service libvirtd restart

● Start the services


Configure Password-less SSH

Installing

Hands on! (always node1 from now on)

● OpenNebula needs passwordless ssh access to

all the nodes from all the nodes:

# (as oneadmin)

$ ssh-keyscan node1 node2 > ~/.ssh/known_hosts

# test it!

$ ssh node2

$ exit

$ ssh node1

$ exit


Get User Information - Sunstone

Installing

● Get the Sunstone Login information

● Try out sunstone! http://localhost:9869

# (as oneadmin)

$ cat ~/.one/one_auth

oneadmin:<password>


Adding Hosts - Sunstone

Basic Usage – Hosts

Hands on! (Sunstone)

●Create one host in Sunstone: node1

●Virtualization: KVM

● Information: KVM

●Network: dummy

●Cluster: none

●Watch transition INIT => ON

●Click on the row for more information

●Automatic gathering of monitoring data

●Take a look at the graphs


Adding Hosts - CLI

Basic Usage – Hosts

Hands on! (CLI)

(always as oneadmin in the Frontend – node 1)

$ onehost -help

$ onehost create -help

$ ssh node2 ls -ld /var/tmp/one

$ onehost create node2 -i kvm -v kvm -n dummy

$ onehost list

$ onehost top

# Wait for ON ... and then CTRL-C

$ ssh node2 ls –ld /var/tmp/one

$ onehost show node2

$ onehost show 1

$ onehost show -x 1


Adding Images

Basic Usage – Images


●Create a new Image

● Name: ttylinux

● Path: /var/www/html/ttyvd-context.qcow2

● Set Attributes:

DEV_PREFIX=vd

DRIVER=qcow2


Datastores

Overview



Adding Networks

Basic Usage – Networks


● Click Create

● Name: private

● IP: 192.168.0.1 => [ENTER]

=> … 192.168.0.4

● Network Model: default

● Bridge: br1

br1

VM VM

Node 1

eth1

br1

Node 2

eth1

VM VM


Adding Templates

Basic Usage – Template


●A template is a Virtual Machine definition ready to be instantiated

● It has CPU, Memory, Disks, NIC, Graphical Ports, etc...

General

● Name: ttylinux

● CPU: 0.1

● Memory: 64M

Storage

● Click ttylinux

Network

● Click private

● Model virtio

OS Booting

● Arch x86_64

Input/Output

● Click VNC and add Keymap


Instantiating

Basic Usage – VMs


●VNC ( root / password )

● ifconfig: configured using context

●ping the other machine

●migrate

● live-migrate

● Instantiate the template

●Deploy 2 VMs

●Leave the name blank

●Open Virtual Machines

●Watch the transition

PENDING => RUNNING

●Deployed in different hosts


Main VM actions

Contextualization

Hands on!

Login to the first VM and look at contextualization

Take a look at the contextualization files:


Main VM actions

Basic Usage – VMs

suspend VM state saved. Kept in the host.

power off (--hard) Powers off a VM. Kept in the host.

stop VM state saved. Taken to the system datastore.

undeploy (--hard) Powers off a VM. Taken to the system datastore.

reboot (--hard) Reboots the VM.

delete --recreate Cleans the VM and moves it to PENDING.

shutdown (--hard) Powers off a VM, cleans host and VM is removed

from OpenNebula.

delete VM is immediately destroyed regardless of state.

Recommended only for oneadmin.


Other VM actions

Basic Usage – VMs


●Storage: Attach new disk

● Create new Image => Type: “Datablock”; “Empty Datablock”; Size: 100;

FS Type: “qcow2” ; Device Prefix: “vd”; Driver: “qcow2”

●Network: Attach new nic (model virtio)

●Snapshot

●Take snapshot

●Modify the VM

●Revert

●Capacity: Do a poweroff --hard. Then resize VM capacity

echo 1 >> /sys/bus/pci/rescan

fdisk -l


Permissions

Chmod and Chown, UNIX Style!


Make the all the resources previously created usable by everybody

Apply to all the images, templates and virtual networks.

Owner could be changed too => chown and chmod.


Groups

Creating Groups

Hands on!

Resources: adds the whole OpenNebula Zone

Admin: Create an Administrator User

Permissions: Keep defaults


Groups

Associated ACLs

Hands on!

When a group is created, a new set of ACLs are introduced


OpenNebula Views


OpenNebula

Admin VDCAdmin

Cloud User


Groups

Using Groups

Hands on!

Login as students-admin and change the view to vdcadmin

Create a new student and update the Quotas


OpenNebula Views


OpenNebula

Admin VDCAdmin

Cloud User


Users

Cloud View

Hands on!

Login as the student and instantiate a new VM

●Select the ttylinux template

●Customize => Small x1

●Network private

●Explore the VM actions. Power Off and Save VM

●Other options: SSH Key, Quotas, Settings

●With the oneadmin account see the new template and image


Other Interesting Features

Federation

OpenNebula can scale by federation many OpenNebula instances.

Scheduler

The OpenNebula Scheduler is extremely flexible. Write your own rules

you want to guarantee that your vms end up wherever you need them.

OneFlow

Manage multi-vm services

OneGate

Send custom Metrics to OpenNebula

AppMarket

Deliver appliances ready to be consumed

CloudBursting

Scale out your private resources to EC2


We Will Be Happy to Clarify Any Question

Questions?

Installing and Basic Usage - EGI (Indico) · Installing and Basic Usage 10 Installation node 1 -...

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