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Installing and Basic Usage
OpenNebula Cloud Management Platform >
Innovative Open Source Technologies and Professional Services to
Build your Enterprise-ready Cloud Computing Environment
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
3 Installing and Basic Usage
OpenNebula Views
Different perspectives for different users
OpenNebula
Admin VDCAdmin
Cloud User
4 Installing and Basic Usage
OpenNebula Views
Configure your Cloud from the Admin perspective
OpenNebula
Admin VDCAdmin
Cloud User
5 Installing and Basic Usage
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
6 Installing and Basic Usage
Virtual Lab
Planning the Installation
NODE 1 NODE 2
7 Installing and Basic Usage
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
8 Installing and Basic Usage
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
9 Installing and Basic Usage
Installation node 1 - Frontend
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
10 Installing and Basic Usage
Installation node 1 - Frontend
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
11 Installing and Basic Usage
Installation node 2 – Worker Node
Installing
Hands on (node2) !
● Install Packages
# yum install opennebula-node-kvm
# service libvirtd restart
● Start the services
12 Installing and Basic Usage
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
13 Installing and Basic Usage
Get User Information - Sunstone
Installing
● Get the Sunstone Login information
● Try out sunstone! http://localhost:9869
# (as oneadmin)
$ cat ~/.one/one_auth
oneadmin:<password>
14 Installing and Basic Usage
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
15 Installing and Basic Usage
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
16 Installing and Basic Usage
Adding Images
Basic Usage – Images
Hands on! (Sunstone)
●Create a new Image
● Name: ttylinux
● Path: /var/www/html/ttyvd-context.qcow2
● Set Attributes:
DEV_PREFIX=vd
DRIVER=qcow2
17 Installing and Basic Usage
Datastores
Overview
Hands on! (Sunstone)
18 Installing and Basic Usage
Adding Networks
Basic Usage – Networks
Hands on! (Sunstone)
● 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
19 Installing and Basic Usage
Adding Templates
Basic Usage – Template
Hands on! (Sunstone)
●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
20 Installing and Basic Usage
Instantiating
Basic Usage – VMs
Hands on! (Sunstone)
●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
21 Installing and Basic Usage
Main VM actions
Contextualization
Hands on!
Login to the first VM and look at contextualization
Take a look at the contextualization files:
22 Installing and Basic Usage
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.
23 Installing and Basic Usage
Other VM actions
Basic Usage – VMs
Hands on! (Sunstone)
●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
24 Installing and Basic Usage
Permissions
Chmod and Chown, UNIX Style!
Hands on! (Sunstone)
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.
25 Installing and Basic Usage
Groups
Creating Groups
Hands on!
Resources: adds the whole OpenNebula Zone
Admin: Create an Administrator User
Permissions: Keep defaults
26 Installing and Basic Usage
Groups
Associated ACLs
Hands on!
When a group is created, a new set of ACLs are introduced
27 Installing and Basic Usage
OpenNebula Views
Configure your Cloud from the Admin perspective
OpenNebula
Admin VDCAdmin
Cloud User
28 Installing and Basic Usage
Groups
Using Groups
Hands on!
Login as students-admin and change the view to vdcadmin
Create a new student and update the Quotas
29 Installing and Basic Usage
OpenNebula Views
Configure your Cloud from the Admin perspective
OpenNebula
Admin VDCAdmin
Cloud User
30 Installing and Basic Usage
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
31 Installing and Basic Usage
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
32 Installing and Basic Usage
We Will Be Happy to Clarify Any Question
Questions?
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