naas in openstack - cloudcamp moscow
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Agenda
1. OpenStack2. Network as a Service3. Network as a Service in OpenStack4. DevOps applications5. OpenStack Community
Agenda
1. OpenStack2. Network as a Service3. Network as a Service in OpenStack4. DevOps applications5. OpenStack Community
OpenStack
OpenStack – open source cloud software
OpenStack
OpenStack:● truly open source cloud software (Apache2
license)● open design process● open development process● open source code● open community
OpenStack
OpenStack contains 5 projects:● Compute (Nova) – Cloud fabric● Storage (Swift) – Cloud storage● Image service (Glance) – VM image
management● Identity (Keystone) – user management● Dashboard (Horizon) – cloud management
web interface
OpenStack
NovaSwiftGlanceKeystone Dashboard
OpenStack Nova
● VM lifecycle management● Hypervisor agnostic: KVM, LXC, QEMU,
UML, VMWare ESX/ESXi, XenServer/XCP, HyperV (before Essex release)
● 3 network models: Flat, FlatDHCP, VLAN● Role based access control● Block device management● REST API: OpenStack & Amazon EC2
OpenStack Swift
● Redundant object storage● High availability● Leverages commodity hardware● No single point of failure● Multi-dimensional scalability● REST API: OpenStack & Amazon S3
OpenStack Glance
● Image as a Service● Container support:
ovf, bare, aki, ari, ami
● Disk format support: raw, vhd, vmdk, vdi, iso, qcow2, aki, ari, ami
OpenStack Keystone
● Provides unified authentication across all OpenStack projects and integrates with existing authentication systems
● Role based access control● Storage support: KVS, SQLDB, LDAP, PAM
OpenStack Horizon
Web dashboard for cloud management
Agenda
1. OpenStack2. Network as a Service3. Network as a Service in OpenStack4. Possible applications5. OpenStack Community
Network as a Service
● multiple networks per tenant● multiple network interfaces per VM● ability to connect networks to VM network
interfaces● isolation between networks● control over IP addressing● API for network management
Network as a Service
● multiple networks per tenant● multiple network interfaces per VM● ability to connect networks to VM network
interfaces● isolation between networks● control over IP addressing● API for network management
Network infrastructure, but virtual
Agenda
1. OpenStack2. Network as a Service3. Network as a Service in OpenStack4. DevOps applications5. OpenStack Community
Network as a Service in OpenStack
I’m serious… and DON’T call me Shirley
Network as a Service in OpenStack
Two incubated OpenStack projects:● Quantum – network connectivity as a service
○ software defined networks (SDN)○ OpenFlow○ QoS○ Monitoring
● Melange – IP managementinitial focus is on IP address management (IPAM) and address discovery (DHCP/dnsmasq) functionality
Network as a Service in OpenStack
Quantum● Multiple networks per tenant● Connection between VM network interface
(vNIC) and virtual networks● L2 isolation support
Supported technology:● OpenVSwitch● Linux Bridge● Cisco UCS/Nexus● Ryu OpenFlow Controller
Agenda
1. OpenStack2. Network as a Service3. Network as a Service in OpenStack4. DevOps applications5. OpenStack Community
DevOps Applications
DevOps - collaboration and integration of IT infrastructure operations, software engineering and QA
DevOps Applications
DevOps in cloud:● Dynamic
environment● Changes in
environment could be automated
● Ability to provide same infrastructure for development and QA
DevOps Applications
Distributed system examplesome cases for distributed systems that needs
network management capabilities
DevOps Applications
Distributed system troubles:● Split Brain
Split-brain occurs when all of the private links go down simultaneously, but the cluster nodes are still running.
● Data channel low throughput Is network capabilities enough for your data flow?
● Site failuresAutonomous part of system failure
● Delayed messagesMessages to remote systems arrived too late
...
DevOps Applications
Cloud simulation with NaaS:● Split Brain - disable connectivity between
cluster nodes● Data channel low throughput - QoS on vNIC● Site failures - creation of separate networks
for autonomous parts● Delayed messages - simulate network
connectivity failures programmatically
Agenda
1. OpenStack2. Network as a Service3. Network as a Service in OpenStack4. DevOps applications5. OpenStack Community
OpenStack Community Resources
http://www.openstack.orghttps://www.launchpad.net/~openstackhttp://wiki.openstack.org
OpenStack Community in Russia
OpenStack Community in Russia
http://www.oscloud.ruhttp://www.openstack.ru
Thank you
Ilya Alekseyev
Russian OpenStack Communityhttp://www.oscloud.ru