TheNewStack Book2 Applications and Microservices With Docker and Containers
4th May 2017 CONTAINERS, MICROSERVICES, CLOUD-NATIVE TELCO · CONTAINERS, MICROSERVICES,...
Transcript of 4th May 2017 CONTAINERS, MICROSERVICES, CLOUD-NATIVE TELCO · CONTAINERS, MICROSERVICES,...
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ARE YOU BEING SERVED?
CONTAINERS, MICROSERVICES, CLOUD-NATIVE TELCO
Anita Tragler, Product Manager, Networking/NFV, Red HatJim Logan, Director Of NFV, Affirmed NetworksMarc Curry, Product Manager, Openshift, Red Hat
4th May 2017
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“Biggest NFV challenge involves transformation of an organizational and cultural nature; moving to DevOps”
Niklas Sonkin, Sweden’s Tele2's Chief operating officer, Light reading
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“Virtualized network functions (VNFs) urgently need to be developed as cloud-native applications”
Doug Nassaur, Principal Technical Architect for AT&T's Domain 2.0, Composable Telco Panel, Light reading
“With virtual machines (VMs) you get a lumpy and slow-to-respond system, but with containers you could
adapt more quickly”Peter Willis, Chief Researcher at BT, PARIS -- MPLS/SDN/NFV World Congress
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The Evolving Network
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5G - Finally The Bandwidth You Need
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The Internet Of Things
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The Internet Of Things
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IOT - All Your Base Are Belong To Us
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Need To Rethink The Network Architecture 7
Need To Rethink Network Architectures
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ETSI Network Function Virtualization Environment
8Source: ETSI
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Centralize And Distribute
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Existing Network Architecture
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Evolving Network Architectures
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And..Rethink VNF Software Architectures
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Need To Rethink Network Element Software Architectures
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DON’T PANIC
ReThink ReBuild!
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VNF Architectures - Where we are today? Monolithic
vDPIvFW
vCPE
vRoutervDHCP Internet
Virtual customer premises equipment (vCPE)
14NFVIHardware Host OS
VIMVirtualization - KVM
Enterprise usersBranch Office
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Today : VNFs and VNF Orchestration
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Hardware dependent
Virtual Infrastructure Manager (VIM)
NFVIHardware Host OS
VIMVirtualization - KVM Performance tuning
Scale Expensive
Tightly Coupled
Monolithic VMs
Stateful Persistent
VNFs are pets
VNF1
Tedious updates
CentralizedActive Standby
Redundancy Failover
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VNF Architectures - Where we want to be? Microservices
16Customer A Customer B
vDHCP vFW vRouter
Value Added Services
SDN controller
InternetCarrier Network
vCPERemote site
Enterprise usersBranch Office
vRouter
NFVIHardware
Host OS VIM
vDPI
NFVIHardware
Host OS VIM
Central site
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Scale-out
Elastic Scale
Rethink VNFs and VNF Orchestration
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Loosely Coupled
VNFs are CattleMicroservice oriented
containers
Temporal Stateless
VNF-μs3
VNF-μs1VNF-μs2
APIFirst
VNF-μs4
Composable
Add/Remove
ReplaceVNF-μs3
Fail or Kill
Update & Reuse
Distributed
Fault-TolerantRecoverable
NFVIHardware
Host OS
VIM
Portable
Virtual Infrastructure Manager (VIM)
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What is the Cloud-Native Telco?
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CloudScale Elastic
Cloud-Native Architecture
ContainerizedDynamically Orchestrated
Microservices Oriented
VNF “Cloud-Native” AttributesComposable & Disposable
Recoverable
Cloud Native Telco
Programmable
Highly Scalable MANO
integration
Upgradable
Robust Orchestration
ResiliencePerformance
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Why Containers?
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The Cloud Native Telco Transformation
20Applications
Monolith
N-Tier
Microservices
Infrastructures
Datacenter
Hosted
Hybrid
Processes
Waterfall
Agile
DevOps
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Containers Evolve VNF Development & Deployment
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Applications - VNFs Infrastructure - VNF Orchestration
Process - VNF Deployment
● Apps+libraries-OS● Package
Microservices● Build quickly● Faster time to
market● Programmable
API
● Containers are Linux● Portable ● Fast instantiation● Scale-out● Higher Density● Multi-tenancy● Updates and rollbacks● Secure reliable OS ● Signed image repos
● Immutable images pushed to any platform
● Smooth transition from Dev to Test to Ops
● Efficient Automation● Drives Continuous
Integration and Continuous Deployment CI/CD
Examples of each: apps) customer example...deployed much faster, etc.infrastructure) standing up 1000 new instances
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DevOps for Accelerated VNF Development: CI / CD
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NEWSERVICE FEATURE
IDEAVNF
FEATURE
SELFPROVISIONIN
G
ENVIRONMENTSTANDARDIZATION
AUTOSCALING
CENTRALIZEDOPS MANAGEMENT
DEV QA INT TEST PROD
IDE CONFIGURATIONMANAGEMENT
CONTINUOUSINTEGRATION MONITORING
CYCLE TIME
PRODUCTMANAGER DEVELOPERS TESTENGINEERS OPERATIONSPERSONNEL
CONTINUOUS DELIVERY
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KEY
Red Hat NFVIcomponent
Optional Red Hat component
Red Hat partner component8
Other vendor component
NFV MANAGEMENT AND ORCHESTRATION (MANO)
ELEMENT MANAGEMENT SYSTEMS (EMS)
OPERATIONS/BUSINESS SUPPORT SYSTEMS (OSS/BSS)TOOLS AND RUNTIME FOR OSS/BSS INTEGRATION
+
VALIDATED VNF1 CERTIFIED VNF CONTAINERμService μService
OTHER VNF
DPDKVNF App
NETWORK FUNCTIONS VIRTUALIZATION INFRASTRUCTURE (NFVI)
VIRTUAL NETWORK
Instance HA
SR-IOVEPA features
CERTIFIED OPENSTACK PLUGINS
CERTIFIED HARDWARE
Compute Storage Network
+DPDK
Open vSwitch (OVS)
SFC
OpenDaylight
VIRTUAL COMPUTE
Real-time KVM
Kernel-based Virtual Machine (KVM)
VIRTUAL STORAGE
• Software-defined networking (SDN)
• Software-defined storage (SDS)
SYSTEMS ADMINISTRATION, AUTOMATIONAND LIFE-CYCLE MANAGEMENT
+
VIRTUAL NETWORK FUNCTION (VNF)
MANAGER(S)
VIRTUALIZED INFRASTRUCTUREMANAGER VIM
ENHANCED OPERATIONS ANDHYBRID CLOUD MANAGEMENT
NFV ORCHESTRATOR
DPDK DPDK
Orchestration of VNF Containers
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Challenges
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Key Challenges for Cloud-Native VNFs
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● Datapath Performance
● Container Network Provisioning
● Orchestration and integration with ETSI Architecture
○ VNF Orchestration
○ Multi-site Orchestration
● Adopting the DevOps Mindset
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Datapath Performance
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VF0 VF1
Datapath Acceleration TodayDPDK VNF with SR-IOV
Single-Root IO Virtualization
DPDK VNF withOpen vSwitch + DPDK
(data plane development kit)
Hardware Dependencies to the NICminimum CPU overhead
ToR for switching
DPDK - Direct IO to NIC or vNICPerformance tuning
vSwitch features
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kernel space
QEMU KVM
Internet
User space
Evolution of Datapath for Containers
Container VNFμs1
Container VNFμs2
vswitch
VF
vNIC
SR-IOV
vNIC
VNF Container MicroservicesVNF in VM
VF
vNIC
SR-IOV
Application
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VNF containers in VM
Container VNFμs
Container VNFμs
OVS br-intOVS br-tun
Overlay Mgmt OVN, Kuryr
vNIC vNICBridge IPC,
macvlan, vlan trunk, ipvlan/ afnetns
vswitch
vNIC
Host OS
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Container Network Provisioning
29Container Network Provisioning
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Container Network Provisioning
Central Site
Control plane VNF-μs
OVS-DPDKVXLAN VLAN
Remote Site
Data Plane VNF-μs
OVS-DPDKVLAN VXLANDPDK
DPDK
Data-plane traffic
Control-plane traffic
Management VNF-μs
Management traffic
Internet
Data Plane VNF- VM
DPDK
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VNF Orchestration
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VNF Orchestration
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VNF1
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NFVI
VM
Guest OS
Hybrid VNFs - VMs And Containers Will Co-exist
Container
Container
Container
VM
Guest OS
HW/Node1
Host OS / KVM
HW/Node2
Host OS / KVM
● Optimum resource usage● Robust orchestration - Needs coordination between VM and Container
schedulers/orchestrators● Reuse networking services Firewall, Router, Load Balancer
HW/Node3
Host OS / KVM
Container
Container
VNF2
Guest OS
Container
Container
Container
Container
VM
Guest OS
Container
Container
Container
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Distributed Multi-Site Orchestration
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Distributed NFV vCPE
Source: ETSI Use case http://www.etsi.org/deliver/etsi_gs/nfv/001_099/001/01.01.01_60/gs_nfv001v010101p.pdf
Branch Office and Central office distributed VNFs
VNF Orchestration needed at all sites
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Putting It Together- Managed Containerized CPE
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Adopting the DevOps Process
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Pets versus Cattle
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Cloud Native Telco DevOpsCI/CD
Containers Microservices
Perform
ance
Orchestration
Resilience
Elastic Scale
Upgradability
Are you Ready?
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Demo Time!
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Thank-you
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