building foss clouds
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Building FOSS Clouds
Sebastien Goasguen, Kris BuytaertLinuxCon EU, Nov 6th
Barcelona, Spain
Slides at: slideshare.net/sebastiengoasguen
Speakers…• Joe stayed home to deal with the release,
• Kris Buytaert stepped in:
Tutorial Outline
• 10:10 – 10:45 FOSS Clouds and CloudStack intro
• 10:45 – 11:00 DevCloud demo
• 11:00 – 11:50 FOSS Cloud Automation, DevOps configuration and monitoring tools
Define:tutorial
• A tutorial is a method of transferring knowledge and may be used as a part of a learning process. More interactive and specific than a book or a lecture…<snip>
• Therefore:
DevCloud
• A CloudStack sandbox– Pass the USB keys around and get the Vbox appliance
devcloud.ova file
• Import the appliance in VirtualBox– Play with CloudStack– http://wiki.cloudstack.org/display/COMM/DevCloud– https://cwiki.apache.org/confluence/display/
CLOUDSTACK/CloudStack+devcloud+environment+setup
Objectives
• Learn the basic architecture of a cloud• Learn a few new tools• Explore CloudStack via its sandbox• Discover some concepts of automation• Get home with some ideas to try out• Mileage may vary
NIST Definition of Cloud
•"cloud computing is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction.“ – NIST
NIST Service/Deployment Models•Service Models:• IaaS (e.g EC2, rackspace)•PaaS (e.g GAE, Azure)• SaaS (e.g Gapps)
•Deployment model:•Private cloud•Public cloud•Hybrid cloud (Private than can use Public)
NIST Key Characteristics of Cloud•Elasticity• Expands and Shrinks as needed• E.g Elastic Load Balancing, Elastic Map Reduce
•Measured Service•Utility Pricing. You pay for what you use• E.g $0.08 for one hour of small instance
•On-demand• You get it when you ask for it• E.g One api call and you get your machine, ~no
queue
“Guidelines”
• Virtualization and automation are key enablers of the cloud characteristics
• Build your infrastructure to enable on-demand elastic provisioning of –servers, storage, network –
• Setup a PaaS that suits you and your applications
• Then move to continuous delivery of applications …
OSS SaaS…and more
OSS PaaS…
OSS IaaS…
IaaS challenges
• Not out of the box by itself.• Need a farm of hypervisors – Xen, KVM, Vmware…
• Need storage– For image catalogue– For volume/snapshot management
• Need flexible network that can be configured on-demand– VLANS, no VLANS, existing net infra, SDN…
Let’s make Red Hat happy
Announcing Apache CloudStack 4.0
Coming at 12:00 EST
• Apache CloudStack 4.0• Check out the testing procedure:– https://cwiki.apache.org/CLOUDSTACK/
cloudstack-40-test-procedure.html
• Or watch my amazing screencast:– http://vimeo.com/52150218
A bit of History• Original company VMOPs (2008)– Founded by Sheng Liang former lead dev on JVM
• Open source (GPLv3) as CloudStack• Acquired by Citrix (July 2011)• Relicensed under ASL v2 April 3, 2012• Accepted as Apache Incubating Project April
16, 2012• First Apache (ACS 4.0) release expected now
Apache Software Foundation
Apache Process
• 100% community driven• New ideas, decisions only taken on mailing lists.
Votes taken by community• Project led by Project Management Committee
(PMC):– http://www.apache.org/dev/pmc.html– http://incubator.apache.org/guides/committer.html
• Non committers get invited as committers:– http://community.apache.org/newcommitter.html
Apache Processes
ContributionsExamples:
Sungard: Announced that 6 developers were joining the Apache projectSchuberg Philis: Big contribution in building/packaging and Nicira supportGo Daddy: Early proto of Maven buildingCaringo: Support for own object storeBasho: Devcloud packaging
A Very Flexible IaaS PlatformCompute Hypervisor
Storage Block & Object
Network Network & Network Services
Primary Storage Secondary Storage
http://www.slideshare.net/cloudstack/cloudstack-architecture
Architecture / Language
• Java application• Tomcat6, Axis2, Maven build + ant– Ant going away in 4.1
• Collaboration Conference, Nov 30th -Dec 2nd – http://collab12.cloudstack.org/
Build and Run in 4.1
• git clone https://git-wip-us.apache.org/repos/asf/incubator-cloudstack.git
• mvn clean• mvn install• mvn –P developer –pl developer –Ddeploydb
• mvn –pl :cloud-client-ui jetty:run
Cloud Interactions
CloudStackCloudStack
Cloud user{API client (Fog/etc)}
End User UI
End User UI
Admin UI
Admin UI
MySQLMySQL
CloudStackCloudStackClustered
CloudStackManagement
Server
ClusteredCloudStack
ManagementServer
Domain Admin
UI
Domain Admin
UI
CS Admin & End-user API
Cloud user{ec2 API client }
ec2 API
Monitoring CS API vSphere ClusterPrimaryStorage
vcentervcenter
Cluster Mgmt
XS ClusterPrimaryStorage
vCenter API
XAPI
KVM ClusterPrimaryStorageJSON
OVM Cluster PrimaryStorage
XenApi
NetConf
Nitro APIJuniper SRX
Netscaler
Console Proxy VMConsole
Proxy VMConsole Proxy VMConsole
Proxy VM
JSON
Cloud user
HTTPSAjax Console
Ajax Console
VNC
Sec. StorageVM
Sec. StorageVM
NFS Server
NFSSec. Storage
VMSec. Storage
VM
HTTP (Template Download)
HTTP (Template Copy)
HTTP (Swift)
NFS
Router VMRouter VMRouter VMRouter VM
Router VMRouter VM
JSON
{Proxied} SSH
http://www.slideshare.net/cloudstack/cloudstack-architecture
TerminologyZone: Availability zone, aka Regions. Could be worldwide. Different data centersPods: Racks or aisles in a data centerClusters: Group of machines with a common type of HypervisorHost: A Single serverPrimary Storage: Shared storage across a clusterSecondary Storage: Shared storage in a single Zone
Storage• Primary Storage:
– Anything that can be mounted on the node of a cluster. – Cluster LVM…iSCSI…– Holds disk images of running VMs– Support for CEPH with KVM hypervisors
• Secondary Storage:– Available across the zone– Holds snapshots and templates (image repo)– Can use Openstack swift or any object store (Gluster FS…)– New support for Caringo
• Can use NFS for both to start• Storage Abstraction refactoring underway
Networking
• Extremely flexible to:– Provide isolation with VLANs– Provide isolation at L3 with shared L2 (scalability)– Support hardware devices that exposes API– Deployed on existing networking infrastructure– Support new networking paradigm (SDN)• Support for Nicira Virtual P• Extensive use of Open VSwitch
A customizable GUIAJAX + API
A very extensive API
API• Not really REST• A set of methods available over http(s)• Unauthenticated on integration port• Authenticated on 8080 using Access and Secret Key• Python/Ruby clients available• Internal Marvin client• Cloudmonkey CLI• Other clouds client support the API
Enabling EC2 and S3
• Via the GUI
• Via API call on integration API port 8096http://localhost:8096/client/api?command=updateConfiguration&name=enable.s3.api&value=true
http://localhost:8096/client/api?command=updateConfiguration&name=enable.ec2.api&value=true
DevCloud
• Several use cases:– Try CloudStack in an isolated sandbox. Runs within
the appliance– Develop CloudStack on own machine, build locally
and deploy new version in DevCloud (Build and test)
– Develop and Run locally, use DevCloud as Xen hosts
DevCloud: self-containedCloudStack runs in the appliance
Testing “4.0” code in DevCloud
• Deploy new CloudStack code in self-contained DevCloud:
• mvn –P deps• ant rdeploy • ant rdeploydb – Wipes database of mgt server, you will need to
reconfigure the “data center”
• ant rdebug
DevCloud: as HostRun CloudStack on local machineUse DevCloud to setup hosts
DevCloud to test 4.1 branch
• mvn -P developer clean• mvn -P developer install• mvn -P developer -pl developer –Ddeploydb• mvn -P developer -pl tools/devcloud –Ddeploydb
• mvn -pl :cloud-client-ui jetty:run
Configure infrastructure:• mvn -P developer,deploysvr -pl tools/devcloud -Ddeploysvr
Testing Framework –for the PyUG • Marvin is a Python
based framework to run tests against a CloudStack install
• Could be used as a simulator of a datacenter
• Used to configure an infrastructure on a mgt server
[environment]
dns=10.147.28.6
mshost=10.147.39.69
mysql.host=10.147.39.69
[cloudstack]
private.gateway=10.147.40.1
private.pod.startip=10.147.41.121
private.pod.endip=10.147.41.160
private.netmask=255.255.254.0
public.gateway=10.147.40.1
public.vlan.startip=10.147.41.162
public.vlan.endip=10.147.41.200
public.netmask=255.255.254.0
hypervisor=XenServer
host=10.147.40.10
host.password=password
#storage pools
primary.pool=nfs://10.147.28.7:/export/home/automation/sadhu/primary
secondary.pool=nfs://10.147.28.6:/export/home/automation/sadhu/secondary
Demo time
• http://vimeo.com/52150218
Info• Apache incubator project• http://www.cloudstack.org• http://incubator.apache.org/cloudstack/• #cloudstack on irc.freenode.net• @cloudstack on Twitter• http://www.slideshare.net/cloudstack• http://cloudstack.org/discuss/mailing-lists.html
Welcoming contributions and feedback, Join the fun !
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