service fabric

#gib2017 #gib2017

2017 - Brisbane

Lee Simpson | MexiaService Fabric

#gib2017

Microsoft Azure Service FabricA platform for reliable, hyperscale, microservice-based applications

Microservices

Application Programming Models

Azure

WindowsServer Linux

Hosted Clouds

WindowsServer Linux

Service Fabric

Private Clouds

WindowsServer Linux

High Availability

Hyper-Scale

Hybrid Operations

High Density

Rolling Upgrades Stateful

services

Low Latency Fast startup & shutdown

Container Orchestration & lifecycle management Replication &

FailoverSimple

programming models

Load balancing

Self-healingData Partitioning

Automated Rollback

Health Monitoring

Placement Constraints

#gib2017

Battle-hardened for over 5 years

Azure Core Infrastruct

ure

thousands of machines

Power BI

Intune

800k devices

Azure SQL

Database

1.4 million databases

Bing Cortana

500m evals/sec

Azure Documen

t DB

billions transactions/wee

k

Skype for

Business

Hybrid Ops

Event Hubs20bn

events/day

#gib2017

What is a microservice?• Is (logic + state) that is independently versioned,

deployed, and scaled• Has a unique name that can be resolved

e.g. fabric:/myapplication/myservice• Interacts with other microservices over well defined

interfaces and protocols like REST• Remains always logically consistent in the presence of

failures• Hosted inside a “container” (code + config)• Can be written in any language and framework• node.js, Java VMs, any EXE

• Developed by a small engineering team

#gib2017

Types of microservices• Stateless microservice• Has either no state or it can be retrieved from an external store • There can be N instances• e.g. web frontends, protocol gateways, Azure Cloud Services etc.

• Stateful microservice• Maintain hard, authoritative state• N consistent copies achieved through replication and local persistence• e.g. database, documents, workflow, user profile, shopping cart etc.

#gib2017

Datacenter (Azure, Amazon, On-Premises, …)

Load Balanc

er

PC/VM #1Service FabricYour code, etc.



PC/VM #4Service FabricYour code, etc.PC/VM #5

Service FabricYour code, etc.

Service Fabric Cluster with 5 Nodes

Your code, etc.

(Port: 19080)

Web Request

(Port: 80/443/?)

#gib2017

Service Fabric’s Infrastructure Services

Service DescriptionCluster Manager Cluster management

(REST [HTTP=19080], PowerShell/FabricClient [TCP=19000])

Failover Manager

Rebalances service instances as nodes come/go

Naming Registry mapping service instances endpoints

Fault Analysis Let’s you inject faults to test your servicesImage Store Contains your app packages (not on OneBox)Upgrade Upgrades SF on nodes (Azure only)

#gib2017

#gib2017

• An application is a collection of services• In Service Fabric terms, we call these application types & service

types• So, an application type is a collection of service types

Defining Application Types & Service Types

Cluster “Fabrikam” eStore

App“G” Gallery Svc“P” Payment Svc

eStore App TypeGallery Svc

TypePayment Svc Type

“Contoso” eStore App“G” Gallery

Svc“P” Payment Svc

Image

Store

service fabric

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