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Nimbus & OpenNebula

Nimbus & OpenNebula. Young Suk Moon. Nimbus - Intro. Open source toolkit Provides virtual workspace service (Infrastructure as a Service) A client uses virtual machines ( Xen ) on remote resources. Virtual machines are configured as user demand Uses X.509 certificates.

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Nimbus & OpenNebula

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  1. Nimbus & OpenNebula Young Suk Moon

  2. Nimbus - Intro • Open source toolkit • Provides virtual workspace service (Infrastructure as a Service) • A client uses virtual machines (Xen) on remote resources. • Virtual machines are configured as user demand • Uses X.509 certificates http://grid.rit.edu

  3. Nimbus - Architecture workspace control context broker workspace resource manager workspace pilot cloud client WSRF RM API workspace service EC2 client EC2 WSDL IaaS Gateway http://grid.rit.edu

  4. Nimbus - Architecture workspace control context broker workspace resource manager workspace pilot cloud client WSRF RM API workspace service EC2 client EC2 WSDL IaaS Gateway Cloud client: connects to Nimbus and use VMs http://grid.rit.edu

  5. Nimbus - Architecture workspace control context broker workspace resource manager workspace pilot cloud client WSRF RM API workspace service EC2 client EC2 WSDL IaaS Gateway EC2 client: connects to the Amazon Elastic Compute Cloud (EC2) http://grid.rit.edu

  6. Nimbus - Architecture workspace control context broker workspace resource manager workspace pilot cloud client WSRF RM API workspace service EC2 client EC2 WSDL IaaS Gateway WSRF & EC2 WSDL: protocol implementations http://grid.rit.edu

  7. Nimbus - Architecture workspace control context broker workspace resource manager workspace pilot cloud client WSRF RM API workspace service EC2 client EC2 WSDL IaaS Gateway RM API: interface to Virtual Workspace Service http://grid.rit.edu

  8. Nimbus - Architecture workspace control context broker workspace resource manager workspace pilot cloud client WSRF RM API workspace service EC2 client EC2 WSDL IaaS Gateway IaaS Gateway: connects to EC2 or other cloud services http://grid.rit.edu

  9. Nimbus - Architecture workspace control context broker workspace resource manager workspace pilot cloud client WSRF RM API workspace service EC2 client EC2 WSDL IaaS Gateway Workspace service: VM manager, Web Service base, run in GT Java container http://grid.rit.edu

  10. Nimbus - Architecture workspace control context broker workspace resource manager workspace pilot cloud client WSRF RM API workspace service EC2 client EC2 WSDL IaaS Gateway Workspace pilot: uses local site manager such as PBS http://grid.rit.edu

  11. Nimbus - Architecture workspace control context broker workspace resource manager workspace pilot cloud client WSRF RM API workspace service EC2 client EC2 WSDL IaaS Gateway Workspace control: run VMs, build VM image, connect VMs to network, send contextualization information to the context broker http://grid.rit.edu

  12. Nimbus - Architecture workspace control context broker workspace resource manager workspace pilot cloud client WSRF RM API workspace service EC2 client EC2 WSDL IaaS Gateway Context broker: coordinates virtual cluster at its deployment Context agent: runs on each VM to communicate with the context broker http://grid.rit.edu

  13. Nimbus – Administration - I • Setting service container • Creating new host / user certificates • Relevant file configuration • Installing Xen • Setting DHCP (Dynamic Host Configuration Protocol) • Each hypervisor needs DHCP server and ebtable http://grid.rit.edu

  14. Nimbus – Administration - II • Installing Nimbus service pakages • RM API, workspace service (VM, VMM) • WSRF frontend • EC2 frontend • Configuration • Service host name • VMM (Virtual Machine Manager) names • Networks (DNS, subnet, etc.) • Authorization: edit nimbus-grid-mapfile http://grid.rit.edu

  15. Nimbus – Administration - III • Installing workspace-control program • Configuration • sudoers file: set paths to dhcp-config.sh, mount-alter.sh, etc. for the users • DHCP (only for delivery): add subnet in dhcpd.conf • Kernels: copy kernel images and edit [image] section in worksp.conf file for clients to choose • Networks: edit [networking] section in worksp.conf file Example: association_0: private; xenbr0; vif0.0 ; none; 192.168.0.0/24 http://grid.rit.edu

  16. Nimbus – Client Administration • Download and install • Create proxy credential: $ ./bin/grid-proxy-init.sh • Select VM • $ ./bin/cloud-client.sh –list • Deploy VM • $ ./bin/cloud-client.sh --run --name hello-cloud --hours 1 • Output: SSH public keyfile contained tilde: - '~/.ssh/id_rsa.pub' --> '/home/guest/.ssh/id_rsa.pub’ Launching workspace. Using workspace factory endpoint: https://cloudurl.edu:8443/wsrf/services/WorkspaceFactoryService Creating workspace "vm-023"... done. IP address: 123.123.123.123 Hostname: ahostname.cloudurl.edu Start time: Fri Feb 29 09:36:39 CST 2008 Shutdown time: Fri Feb 29 10:36:39 CST 2008 Termination time: Fri Feb 29 10:46:39 CST 2008 Waiting for updates .State changed: Running Running: 'vm-023’ http://workspace.globus.org/clouds/cloudquickstart.html http://grid.rit.edu

  17. Nimbus – Client Commands • Log on • $ ssh root@ahostname.cloudurl.edu • Get info about VM • $ ./bin/cloud-client.sh --status --handle vm-023 • Save changes • $ ./bin/cloud-client.sh --save --handle vm-023 --newname custom-1 • Terminate VM • $ ./bin/cloud-client.sh --terminate --handle vm-023 http://workspace.globus.org/clouds/cloudquickstart.html http://grid.rit.edu

  18. Nimbus – APIs (Java) • Request authorization: creation process • org.globus.workspace.service.binding.GlobalPolicies • org.globus.workspace.service.binding.authorization.CreationAuthorizationCallout • Initial request intake: handle creation requests • org.globus.workspace.creation.Creation • org.globus.workspace.service.binding.Bind* http://grid.rit.edu

  19. OpenNebula - Intro • Open source virtual infrastructure engine • Deploy VMs • A distributed virtualization layer OpenNebula: The Open Source Virtual Machine Manager for Cluster Computing, http://www.opennebula.org/lib/exe/fetch.php?id=outreach&cache=cache&media=opennebula-oakland.pdf http://grid.rit.edu

  20. OpenNebula - Architecture Scheduler Command Line Interface Request Manager (XML-RPC) SQL Pool VM Manager VN Manager Host Manager Transfer Driver Virtual Machine Driver Information Driver http://grid.rit.edu

  21. OpenNebula - Architecture • Scheduler: deploy VMs in physical hosts • Request Manager: implements a XML-RPC interface • SQL Pool: maintains status of VMs, hosts, virtual networks. • VM (Virtual Machine) Manager: manages VM life cycles • VN (Virtual Network) Manager: generates MAC / IP addresses • Host Manager: maintains information about hosts and communicate with them http://grid.rit.edu

  22. OpenNebula - Architecture • Transfer Driver: interacts with the image operations (cloning, deleting, …) • Virtual Machine Driver: interacts with the VM life cycle operations (deploy, shutdown, ...) • Information Driver: gets information about physical hosts (memory, cpu, …) http://grid.rit.edu

  23. OpenNebula - Administration • Set up users & groups by NIS (Network Information Service) • server$ groupaddxen • server$ useradd –G xenoneadmin • server$ cd /var/yp • server$ make • Create local groups • node1$ echo "rootxen:x:<xen_gid>:root >> /etc/group • node2$ echo "rootxen:x:<xen_gid>:root >> /etc/group • Configure SSH • server$ ssh-keygen • server$ scpid_rsa.pub node1: • node1$ cd ~/.ssh • node1$ cat id_rsa.pub >> authorized_keys Front-End OpenNebula server SSH SSH Cluster Node 2 SSH Cluster Node 1 Xen Xen http://grid.rit.edu

  24. OpenNebula – Admin: Storage • Image repository (separate or in the front-end) • Contains VM images • Image life-cycle • Preparation: images are in the repository • Cloning: copy an image from the repository to VM directory • Save / remove: save and dispose the image • Physical cluster configuration • $ONE_LOCATION/etc/oned.conf • $ONE_LOCATION/etc/tm_nfs/tm_nfs.conf http://www.opennebula.org/doku.php?id=documentation:rel1.2:ignc http://grid.rit.edu

  25. OpenNebula – Admin: Networks 2 VM clusters have virtual networks and access to the Internet http://www.opennebula.org/doku.php?id=documentation:rel1.2:nm http://grid.rit.edu

  26. OpenNebula – Admin: Networks • Define a virtual network • oned.conf • Fixed virtual networks: set specific addresses • Ranged virtual networks: set a base address • Create a virtual network • $ onevnet –v create private_red.net http://grid.rit.edu

  27. OpenNebula – Administration • Install OpenNebula • $ ./install.sh -d /opt/nebula/ONE • Set up cluster • $ onehost create node1 im_xenvmm_xentm_ssh • $ onehost create node2 im_xenvmm_xentm_ssh im_xen: reference to information driver vmm_ssh: reference to virtual machine driver tm_ssh: reference to transfer driver • Start OpenNebula • $ ONE_LOCATION/bin/one start http://grid.rit.edu

  28. OpenNebula – Command Line Interface • Three commands • onevm [<options>] <command> [<parameters>] • onehost <command> [<parameters>] • onevnet <command> [<parameters>] • Commands of onevm • create, deploy, shutdown, livemigrate, migrate, hold, release, stop, suspend, resume, delete, list, show, top, history • Commands of onehost • create, show, delete, list, enable, disable, top • Commands of onevnet • create, show, delete, list http://grid.rit.edu

  29. OpenNebula – Client APIs • XMLrpc methods • VM allocation: one.vmallocate • VM deployment: one.vmdeploy • VM actions: one.vmaction • shutdown, hold, release, stop, suspend, resume • VM migration: one.vmmigrate • VM information: one.vmget_info http://grid.rit.edu

  30. OpenNebula – Java Example • Invoking one.vmallocate import org.apache.xmlrpc.XmlRpcClient; import java.util.Vector; public class XmlRpcTest { public static void main( String args[] ) throws Exception { XmlRpcClient client = new XmlRpcClient( "http://localhost:2633/RPC2" ): Vector params = new Vector(); params.addElement("SESSION-GOLA&4H910"); params.addElement("MEMORY=345 CPU=4 DISK=[FILE=\"img\",TYPE=cd]""DISK=[FILE=\"../f\"]"); Object result = client.execute( "one.vmallocate", params ); if ( result != null ) System.out.println( result.toString() ); } } http://www.opennebula.org/doku.php?id=documentation:rel1.2:api_examples http://grid.rit.edu

  31. References • http://workspace.globus.org/ • http://www.opennebula.org/doku.php • Open Source Grid and Cluster Software Conference - May 12th-16th 2008 - San Francisco, USA, OpenNebula: The Open Source Virtual Machine Manager for Cluster Computing, http://www.opennebula.org/lib/exe/fetch.php?id=outreach&cache=cache&media=opennebula-oakland.pdf • Tutorial about Elastic Management of a Grid Computing Service with OpenNebula and Amazon EC2, March 2th, 2009, http://www.opennebula.org/lib/exe/fetch.php?id=outreach&cache=cache&media=tutorial_ogf25.pdf

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