OpenNaaS Overview Complete
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www.opennaas.orghttp://www.opennaas.org/
Overview
Pau Minoves, September 2012
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Objective
• A software project, that feeds from research.– Enable long-term research to happen on top of it.
• And leverage past research and assets.
• Create a community that allows several stakeholders tocontribute and benefit from a common NaaS software stack.• Open Source, Open community.
– Solid base functionality that can be used on a productionenvironement.• Users increase life span.
• Faster research output adoption.
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THE COMMUNITY
3
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www.opennaas.org• All pointers to
relevant information and news at our homepage.
• You are welcome to the mailing list!
4
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Open forge• Code, both stable
and development branches available online.
• One-click fork.
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Open forge• All code
contributions (internal and external) are queued for public review and discussion.
6
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Developer tools• Continuous
build system is available online.
7
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get & compile & install
• Built it from scratch:
8
$ git clone git://github.com/dana-i2cat/opennaas.git$ cd opennaas$ git checkout develop # optional$ mvn install
$ cd opennaas$ mvn clean$ git pull git://github.com/dana-i2cat/opennaas.git$ mvn install
$ cp –r platform/target/opennaas-0.10 /srv$ cd /srv/opennaas-0.10$ ./bin/opennaas.sh
• Update from source:
• Run it:
Fetch code
Fetch unstableBuilt it
Clean past builtFetch updatesBuilt it
Enjoy!
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Distribution Overview
9
• OSGi
– List, start, stop
– --help
• Features.
• Configuration.
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THE APPROACH
10
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OpenNaaS Key Requirements
• On demand (commonly user-triggered) provisioning of network resources.
• Recursive delegation of access right over managed resources.
• Lightweight Abstracted operational model.– Decoupled from actual vendor-specific details.
– Flexible enough to accomodate diferent designs and orientations
– Fixed enough so common tools can be build and reused acrossplugins.• Security.
• Lifecycle.
• Monitoring.
• Deployment and upgrade.
• Service orchestration.
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OpenNaaS Stakeholders
• Network Operators with an interest on NaaS:– NREN.
– Cloud Datacenter.
– New services for ISP’s.
• ISV and integrators– middleware-network
orchestration.
• Developers and network researchers.
FUSE ServiceMix
Platform
Extensions
Third Party plugins
OTS
dis
trib
uti
on
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OpenNaaS Platform
• For developers and researchers:– Modern IDEs available– Maven based build system and
dependency management– Plugin howto documentation– Several available open source
plugins as reference– An open OpenNaaS community– Comercial support for underlying
technologies
• Leverage building blocks, both usingexisting resources or for creatingnew ones.– Resource Respository and Manager– Protocol Session Manager– Standard Capabilities– Protocol Endpoints for remoting
(SOAP, REST, etc).– Platform manager– *.apache.org deployment ready
libraries.• While plugins can chose to use
technologies like hibernate, spring orESB, they don’t have to.
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NETWORK INTELIGENCE
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See Mantychore FP7 use cases
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THE TOOL
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NaaS Lightweight Abstraction
Capability
Resource
RPC
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Platform
CLI
Per
sist
en
ce
Qu
eue
Res
ou
rce
Man
ager
. . .
Security
Protocol Session Manager
Resource Lifecycle
Resource Layer
Ro
ute
r R
eso
urc
e
Net
wo
rk R
eso
urc
e
Bo
DR
eso
urc
e
Op
tica
l Sw
itch
R
eso
urc
e
. . .
Remoting
Scri
pti
ng
GU
I
Op
enN
ebu
la
Op
enSt
ack
NS
NSA
(N
SI)
. . .
3P Extensions
3P Middleware
OpenNaaS ArchitectureNetwork Intelligence• Integration with Northbound
Middleware• IaaS/Cloud managers• Other NMS.
• The user
NaaS Layer• Network HAL abstraction to
infrastructure.• Resources manageable by the user.
• Access controlled by the Sec. Manager.
Platform• Reusable building blocks, common to
all extensions.• Controls access to the infrastructure.
• Integrity, Policy, etc..
Managed infrastructure
BoD
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OpenNaaS Platform Base Components
• ResourceManager.– Manages the persistence and lifecycle of Resources.– There is a ResourceManager repository implementation for
each ResourceType.• Which acts as a Factory for that type.
– Implements also Profiles, we’ll see that later.– Which brings us to the NaaS abstraction reusable concepts;
• Resource• Resource Type• Capability• Action• ActionSet• Profile
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OpenNaaS Platform Base Components
• Reusable concepts:– A Resource represents a manageable unit inside the NaaS
concept.• A Resource can be a switch, a router, a link, a logical router, a
network, etc…– Instantiations of a Resource Type.
• Resources share a simple lifecycle:– Initialized, loaded in memory.– Active, accepts calls.
CapabilityResourceRPC
Router
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OpenNaaS Platform Base Components
• Reusable concepts:– A Resource represents a
manageable unit inside the NaaS concept.• A Resource is decomposed in:
– A model– An array of Capabilities.
• The ResourceType defines:– The model.– Which Capabilities are allowed.
• Which Capabilities are actually callable will depend on that actual Resource instance.
» The Resource can be interrogated.
CapabilityResourceRPC
Router
Chassis
GRE
OSPF
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OpenNaaS Platform Base Components
• Reusable concepts:– A Capability is an interface to a given
Resource functionality.• I.e. for a router:
– OSPF, IPv6, Create/manage logical routers, etc.
• Callable by the user.
– This interface is, as the Model, abstracted and vendor neutral.
– Internally the Capability, is implemented for each kind of device.• Hence, some capabilities might not be
available for some vendors.
– The Capability is the HAL limit for OpenNaaS.
CapabilityResourceRPC
Router
Chassis
GRE
OSPF
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OpenNaaS Platform Base Components
• Internally, Capabilities need a way to abstract implementation details of the devices.– They use Actions.
• An Action is a vendor (and protocol) specific implementation of a configuration modification.– It can be Queue’d.– It can be undone (rollback).
• Actions are grouped into an ActionSet.• On Action.execute(), the action usually
asks to the ProtocolSessionManagerfor an appropriate ProtocolSession to communicate with the device.
CapabilityResourceRPC
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OpenNaaS Platform Base Components
• An Action can be implemented from scratch:– Just fill the execute() method with
some code.
• Or reused from some adaptors we have.– Most importantly, netconf actions
are very XML-intensive.
– They use a digester rule set for XML processing
– And Velocity for XML creation.CapabilityResourceRPC
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OpenNaaS Platform Base Components
• A Profile is an alternative set of ActionSets.
• They can be deployed at runtime to the container.
• On creation time, a Profile can be specified for a given Resource.
• When looking for an Action to execute (or queue), Capabilities will first check the Profile for an alternative Action.– If found, it will be executed instead of
the default one.
• This is a mechanism for OpenNaaS administrators to modify behaviour of default capabilities.
CapabilityResourceRPC
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OpenNaaS Platform Base Components
• The QueueManager is used to stack all Actions to be executed.– All modifications can be done over
the network at once.– Allows rollback of Actions.– Objective: the network-wide
rollback of actions.– It is both a Capability and a OSGI
Service.• The user can check and manipulate
the Queue as a Capability.• The rest of Capabilities can work
with it via the OSGi registry.– Saves a lot of serialization.
CapabilityResourceRPC
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PLATFORM
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Fuse ServiceMix• Standards based
• Open Source
• State of the art technologies– OSGi, Java 6, Apache SF, Scala, etc
– Roll your own
• Componetized compilation of Apache library.
• Documented
• Comercial support.
• Portable– Linux, Windows, Mac.
• Not always the latest library versions…
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Platform• Based on a component container:
– OSGi R4 (Apache Felix’s implementation)
• Mainly, this allows:– The application is split components, and they are:
• Started and stopped at runtime.– Which can be explored and manipulated via the CLI– Which can be handled programmatically (via events, RPC, etc).
• Installed and updated from a (remote) repository.
– Components are isolated from each other.• Classes from a bundle cannot import from other bundles.• Unless explicitly allowed to.• There is a service publication/consumption registry.
• On OSGi, these components are called bundles.– A bundle is a jar + some special lines on the MANIFEST.– Features.xml allow to specify a version of the platform + an initial set
bundles.
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Component Architecture
Operating System
Java 6 VM
OSGi Container
OSGi
FUSE
NaaS
NaaS
Plug-in
FUSE
NaaS
NaaS
Plug-in
Plug-in
FUSE
NaaS
Plug-in
Plug-in
Plug-in
Bu
nd
les
OSG
iDis
trib
.
Exported functionality
Deploy, Upgrade, Monitor, etc
Modern IDE, Remote debug, etc
Unix, Linux, MacOS, Windows, etc
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Bundle lifecycle
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OpenNaaS Platform
• Embeddable and interoperable.– Component of a bigger middleware
• i.e. a cloud management infrastructure.
– L-GPLv3 for the platform.
• Foundation of the NaaS layer.
• Reusable concepts across plugins– Resource, Capability, Action, Lifecycle.
– A command toolset and remoting layer is built around thisconcepts.
– Etc
• Shared but defined roadmap.
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OpenNaaS Platform Base Components
• Leverage building blocks:– Resource Respository and Manager
• Handles lifecycle and persistence.
– Protocol Session Manager• Mantains protocol session lifecycle, with an eye on session reusability.
• Additional protocols can be added
– Standard Capabilities• Queue (for configuration deployment).
– Protocol Endpoints for remoting (SOAP, REST, etc).
– Platform manager
– *.apache.org deployment ready libraries.• While plugins can chose to use technologies like hibernate, spring or ESB,
they don’t have to.
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OpenNaaS Platform Base Components
• Protocol Session Manager– Implements the ProtocolSession abstraction
• Currently we have these implementations:– Netconf (IRTF).– Onesys (EMS Module).– CLI (Telnet, SSH).– TL1 (TCP, SSL).
– Manages ProtocolSession lifecycle.• Performs pooling, if possible.• Reuses sessions (keeps them alive for some minutes).• ProtocolSession events.
– Isolates ProtocolSession usage from credentials.• Loads and pairs ProtocolSessionContexts with appropiate device.• transport://user:password@ip:port/subsystem
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Transactional Queue
35
Network
Queue
Router
Queue
Router
Queue
Router
Queue
Client begin
Write candidateConfiguration and validate
Write candidateConfigurationand validate
Write candidateConfigurationand validate
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Transactional Queue
36
Network
Queue
Router
Queue
Router
Queue
Router
Queue
Client begin
Activate newconfiguration
Activate newconfiguration
Activate newconfiguration
Ok
commit
Ok
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Transactional Queue
37
Network
Queue
Router
Queue
Router
Queue
Router
Queue
Client begin
Discard changes,load previous confif necessary
Discard changes,load previous confif necessary
Discard changes,load previous confif necessary
Fail!
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SAMPLE WORKFLOW
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workflow
Client
Router
Queue
OSPFospf.activate(…)
Queue.addAction( OSPFAction.ACTIVATE, …)
> resource:list> ospf:activate router:A …
GET http://opennaas/resourceManager/list
resources {router [ “A”, “B” ]}
GET http://opennaas/router/A/ospf
activated = false
POST http://opennaas/router/A/ospf/activateospfservice {
running.mospf = true.area { … }
}
200 OK
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workflow
Client
Router
Queue
OSPFqueue.list()
> queue:list router:A…
GET http://opennaas/router/A/queue
queue [ OSPFAction.ACTIVATE ]
Actions[]
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workflow
Client
Router
Queue
OSPFqueue.execute()
> queue:execute router:APOST http://opennaas/router/A/queue/executetimeout = 0
200 OK
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workflow
Client
Router
Queue
OSPFqueue.execute()
> queue:execute router:APOST http://opennaas/router/A/queue/executetimeout = 0
200 OK
getConnection( router:A, “netconf”);
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workflow
Client
Router
Queue
OSPFqueue.execute() Execute Action
UserParams
<configuration>#set($logicalRouter = "false")#if(!$elementName.equals(""))
#set($logicalRouter = "true")#end#if($logicalRouter.equals("true"))
<logical-systems><name>$elementName</name>
#end
<protocols><ospf>
#foreach($ospfAreaConfig in $param.getOSPFAreaConfiguration())#set($ospfArea = $ospfAreaConfig.getOSPFArea())<area>
<name>$ipUtilsHelper.ipv4LongToString($ospfArea.getAreaID())</name>#foreach($ospfPep in $ospfArea.getEndpointsInArea())##replace the content on interface with given name<interface operation="replace">
<name>$ospfPep.getName()</name>##ENABLED/DISABLED#if($ospfPep.getEnabledState().toString().equals($disabledState))<disable/>#end
</interface>#end
</area>#end
</ospf></protocols>#if($logicalRouter.equals("true"))
</logical-systems>#end
</configuration>
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workflow
Client
Router
Queue
OSPFospf.getConfiguration() Parse new configuration into the model
> queue:execute router:AOK>
POST http://opennaas/router/A/queue/executetimeout = 0
200 OK
GET http://opennaas/router/A/ospf/info
ospfservice {running.mospf = true.area { … }
}
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EXTENSIONS
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NaaS Lightweight Abstraction
Capability
Resource
RPC
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Router
47
OSPF• activate• deactivate• configure• getConfiguration• configureArea• addInterfaces• ....
IPV4• setipv4• setInterfaceDescrip
Chassis• upPhysicInterface• downPhysicInterface• createSubInterface• setEncapsulation• createLogicalRouter• addInterfacesToLR• ....
GRE Tunnel• createGRETunnel• deleteGRETunnel• showGRETunnelConf
Static Route• createStaticRoute
• removeStaticRoute
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BoD
48
L2BOD
• requestConnection
• shutDownConnection
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Network
49
Basic Network
• addResource
• removeResource
• L2attach
• l2detach
Net OSPF
• activateOSPF
• deactivateOSPF
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ROADM
50
Connections
• makeConnection
• removeConnection
Monitoring
• clearAlarms
• getAlarms
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MACBridge
51
VLAN Aware Bridge
• createVLANConfiguration
• deleteVLANConfiguration
• addStaticVLANRegistration
• deleteStaticVLANRegistration
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ROADMAP
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Roadmap
• Extensions and platform upgrades are performed according to:
– Research projects
– Internal initiatives from i2CAT
– Initiatives from third party extensions
– Privately funded projects from industry
• The roadmap is open to discussion on the usual project forums (i.e. mailing lists).
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Extensions RoadmapDone Current Short-term (<6m) Mid-Term (>6m)
L1 ROADM
L2 BoD Domain client• AutoBAHN
BoD Domain Server• Porting Harmony IDB
BoD Domain Server• NSI interface.
L2 / L3 Router
L3 Network
Manager GUI
Security Manager• SAML Idp
Cloud Manager connectors• OpenStack NetworkS
ervice drop-in replacement
• OpenNebula 3.0
• Energy consumption metrics.
• Infrastructure Marketplace.
OpenFlow Controller
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Extensions Roadmap by Project
2012 2013 2014 2015 2016
Mantychore UC1 UC2
NOVI SFA Adapter
GEYSERS MAC Bridge
CONTENT
OFERTIE
SODALES
GN3+
Wifi/TDM Resources
OpenFlow SLA Manager
Wifi/TDM Orchestrator
ARN Resource
GN3
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Third Party Extensions
• Mantychore extensions are ASLv2, so they can be used as foundation for additional extensions– Additional extensions can have any license.
• New extensions can have any license.
• Possibility to be hosted on private repositories.– And both be installed with a platform well-known
command• feature:install http://net.biz/3rd.party.feature
• Can leverage both platform functionality and default extensions.
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BACKUP
57