Microservices Architectures with Docker Swarm, etcd, Kuryr and Neutron

Hands-on Workshop | OpenStack Summit, Barcelona

Learn About Microservices Architectures with Docker Swarm, Etcd, Kuryr, Neutron

Copyright © PLUMgrid, Inc. 2011-2016

IntroductionSpeaker

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Senior Software Engineer, PLUMgrid

KhaliqFawad

@fawadkhaliq


• Brief Introduction to Microservices • Docker, Docker Swarm • etcd • Kuryr, Neutron (with PLUMgrid plugin) • Service Discovery/Service Registration • Hands-on workshop • Questions

Agenda

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Introduction to MicroservicesEnter the world of containers!

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ContainersVirtual Machines

Start/Stop time

Workload Density

Seconds to minutes Milliseconds

1x 10x-100x


Introduction to MicroservicesMonolithic services vs Microservices

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• Monolithic • All in one application with single big unified code base • Comprises of multiple small components packaged as one • Entire application grows overtime with each component growth • Harder to maintain overtime, especially upgrades and troubleshooting

• Microservices • Divide and conquer • Move each component into a separate service entity • Connect via APIs • Code base is easier to manage • Deploying is easier and upgrade downtimes are reduced • Easier to scale/replace a component


Docker SwarmArchitecture

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• Distributed K/V store based on directories

• Service definition queried using JSON-based HTTP APIs

• Clients handle failure or load balancing themselves

• Allows watch on changes

etcd

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etcd

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ETCD


Service Registration/Service Discovery

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Kuryr, Neutron, PLUMgrid

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OpenStack Networks PLUMgrid Virtual Domains

From OpenStack Networks to PLUMgrid Virtual Domains

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Virtual DomainsYour Private Virtual Data Center

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• Tenant Virtual Domains • Isolation & segmentation of workloads • Self-service provision of all functions

• Service Virtual Domains • Owned by Cloud Operator • Used to apply common services or

security policies • Hosts external connectivity

• Virtual Domain Chaining • Decouple changes from physical

infrastructure • Fully distributed within IO Visor layer

DNS

Service Virtual Domain

Tenant Virtual Domains


Virtual Network Functions

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Distributed Virtual Network Functions Description

Connector • Connectivity: External, Port Bundle (“Multi-gateway LAG”), Appliance and Inter Virtual Domain

Bridge • Distributed Layer 2 network function • Connects VMs on same IP subnet inside Virtual Domain • Include Private VLAN functionality

Router• Distributed Layer 3 network function • Connects VMs from different subnets inside a Virtual Domain • Includes Dynamic Routing Protocols (RIP, OSPF, BGP)

DHCP • Distributed DHCP function for dynamic IP Address allocation • Associated on per Bridge basis

NAT • Distributed Network Address Translation function • Supports Inbound / Outbound, Many to One, One to One NAT

Security Policies • Distributed Layer 4 Security network function • Substitute for Layer 4 ACLs / Firewalls

DNS • Distributed Domain Name Service

Any Questions?Before we move on to the hands-on workshop

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HANDS-ON WORKSHOP

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Hands-on Workshop Environment

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Content Overview

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Docker, Kuryr, Neutron

Microservices using Docker

Compose

Service Registration and Service Discovery


Content Overview

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Hybrid VM and Container

Application

Micro segmentation for Containers

and VMs

Extended Exercises

Visit Us @Booth B37

THANK YOU!

www.plumgrid.com