with Microservices Architectures

Developing Cloud-Native Applications

Brian ‘redbeard’ HarringtonPrincipal Product Manager@brianredbeard

1

CONFIDENTIAL Designator

2

Brian “Redbeard”Harrington

Product Manager, Service MeshRed Hat@brianredbeardfreenode/#coreos/red_beardredbeard@redhat.combrianredbeard.com

4

Serverless

Building blocks that extends the platform to enable auto-scaling and

event-driven applications

Pipelines

Native CI/CD for the platform.

Service Mesh

Managed connectivity to provide the glue between components, applications, and services.

5

Serverless

Building blocks that extends the platform to enable auto-scaling and

event-driven applications

Pipelines

Native CI/CD for the platform.

Service Mesh

Managed connectivity to provide the glue between components, applications, and services.

Service Mesh

6

Microservices* Evolution

SERVICE MESH

7

Service

Config

Svc Discovery

Routing

Circuit Breaker

Tracing

Platform

...2014

Microservices* Evolution

SERVICE MESH

8

Service

Config

Svc Discovery

Routing

Circuit Breaker

Tracing

Service

Platform Container Platform (+ Service Mesh)

...2014 2018

Microservices* Evolution

SERVICE MESH

9

Service

Config

Svc Discovery

Routing

Circuit Breaker

Tracing

Service

Platform Container Platform (+ Service Mesh)

...2014 20202018

Service

Container Platform (+ Service Mesh)

Service Service

Microservices Miniservices Evolution

SERVICE MESH

10

Service

Config

Svc Discovery

Routing

Circuit Breaker

Tracing

Service

Platform Container Platform (+ Service Mesh)

...2014 20202018

Service

Container Platform (+ Service Mesh)

Service Service

OpenShift Service Mesh

SERVICE MESH

11

Observe Observe

Secure

ControlConnect

Jaeger

Kiali Grafana

Prometheus

Istio

12

POD

SERVICEA

Istio Proxy

POD

SERVICEB:v2

Istio Proxy

POD

SERVICEB:v1

Istio Proxy

/api/v2

/api/v1

OpenShift Service Mesh

"A dedicated network for service-to-service communications"

13

Customer Benefits● Reduced need for developers to have operational knowledge● Service observability and discovery with distributed tracing● Enable transparent policy-driven security● From routing rules to chaos engineering● Powerful visualization & monitoring

Learn more● red.ht/osm-install● learn.openshift.com

GA 4.1

Serverless

14

15

16

ServerlessIt’s a trait.It’s a continuum, a spectrum.*Allow you to focus on business value.Write less code. You give away control to gain velocity.

Nadaam Archery by David Baxendale (CC)

May 2019, Barcelona

18

"Function as a Service (FaaS)

is serverless in the same way

a square is a rectangle”

Serverless > Functions

May 2019, Barcelona

19

Serverless > Microservices

"Microservices can promote

separation of concerns and

offer an interesting way to

build distributed systems,

serverless or not."

May 2019, Barcelona

20

Serverless > Containers

"Containers offer an efficient

and open format to package,

distribute and isolate

workloads."

Microservices, Functions and Apps

21

MicroservicesFunctions Apps

Containers

Infrastructure & Scheduling

Application frameworks

Infrastructure

Containers

Infrastructure & Scheduling

Microservices, Functions and Apps

22

MicroservicesFunctions Apps

Containers

Infrastructure & Scheduling

Application frameworks

Infrastructure

Containers

Infrastructure & Scheduling

Knative Components

...an extension to Kubernetes exposing building blocks to build modern, source-centric, and container-based applications that can run anywhere"

23

Serving

An event-driven model that serves the container with your application and can "scale to

zero".

Eventing

Common infrastructure for consuming and producing events that will stimulate applications.

Build

A pluggable model for building

artifacts, like jar files, zips or

containers from source code.

24

Serving

An event-driven model that serves the container with your application and can "scale to

zero".

Eventing

Common infrastructure for consuming and producing events that will stimulate applications.

Pipelines

Provides Kubernetes native modern resources for declaring

CI/CD pipelines.

OpenShift serverless

Serverless building blocks for any container workload

25

Customer Benefits● Familiar to Kubernetes users. Native.● Scale to 0 and autoscale to N based on demand● Applications and functions. Any container workload.● Powerful eventing model with multiple event sources.● No vendor lock in

Learn more● openshift.com/learn/topics/knative● http://bit.ly/knative-tutorial

Tech Preview 4.2

Azure Functions & KEDA

Functions as a Service

26

Customer Benefits● Enable FaaS in OpenShift● Familiar developer experience using VS Code and Azure CLI● Azure Queues, Azure Service Bus...● Reuse Knative event sources, HTTP auto-scaling

Learn more● https://github.com/kedacore/keda

In partnership with:

Developer Preview

27

Serverless

Building blocks that extends the platform to enable auto-scaling and

event-driven applications

Pipelines

Native CI/CD for the platform.

Service Mesh

Managed connectivity to provide the glue between components, applications, and services.

28

29

30

31

database

shell server

k8s west

k8s east

jenkins

32

33

34

import jsonfrom pynamodb.attributes import UnicodeAttribute, BooleanAttribute, UTCDateTimeAttributefrom pynamodb.models import Model

class EventModel(Model): class Meta: table_name = os.environ['DYNAMODB_TABLE'] region = 'us-west-1' host = 'https://dynamodb.eu-central-1.amazonaws.com'

event_id = UnicodeAttribute(hash_key=True, null=False) ip = UnicodeAttribute(null=False) createdAt = UTCDateTimeAttribute(null=False, default=datetime.now())

def save(self, conditional_operator=None, **expected_values): self.updatedAt = datetime.now() super(EventModel, self).save()

def create(event, context): data = json.loads(event['body'])

event = EventModel(event_id=str(uuid.uuid1()), ip=data['ip'])

event.save()

# create a response return {'statusCode': 201, 'body': json.dumps(dict(event))}

35

import jsonfrom pynamodb.attributes import UnicodeAttribute, BooleanAttribute, UTCDateTimeAttributefrom pynamodb.models import Model

class EventModel(Model): class Meta: table_name = os.environ['DYNAMODB_TABLE'] region = 'us-west-1' host = 'https://dynamodb.eu-central-1.amazonaws.com'

event_id = UnicodeAttribute(hash_key=True, null=False) ip = UnicodeAttribute(null=False) createdAt = UTCDateTimeAttribute(null=False, default=datetime.now())

def save(self, conditional_operator=None, **expected_values): self.updatedAt = datetime.now() super(EventModel, self).save()

def create(event, context): data = json.loads(event['body'])

event = EventModel(event_id=str(uuid.uuid1()), ip=data['ip'])

event.save()

# create a response return {'statusCode': 201, 'body': json.dumps(dict(event))}

36

import jsonfrom pynamodb.attributes import UnicodeAttribute, BooleanAttribute, UTCDateTimeAttributefrom pynamodb.models import Model

class EventModel(Model): class Meta: table_name = os.environ['DYNAMODB_TABLE'] region = 'us-west-1' host = 'https://dynamodb.eu-central-1.amazonaws.com'

event_id = UnicodeAttribute(hash_key=True, null=False) ip = UnicodeAttribute(null=False) createdAt = UTCDateTimeAttribute(null=False, default=datetime.now())

def save(self, conditional_operator=None, **expected_values): self.updatedAt = datetime.now() super(EventModel, self).save()

def create(event, context): data = json.loads(event['body'])

event = EventModel(event_id=str(uuid.uuid1()), ip=data['ip'])

event.save()

# create a response return {'statusCode': 201, 'body': json.dumps(dict(event))}

37

import jsonfrom pynamodb.attributes import UnicodeAttribute, BooleanAttribute, UTCDateTimeAttributefrom pynamodb.models import Model

class EventModel(Model): class Meta: table_name = os.environ['DYNAMODB_TABLE'] region = 'us-west-1' host = 'https://dynamodb.eu-central-1.amazonaws.com'

event_id = UnicodeAttribute(hash_key=True, null=False) ip = UnicodeAttribute(null=False) createdAt = UTCDateTimeAttribute(null=False, default=datetime.now())

def save(self, conditional_operator=None, **expected_values): self.updatedAt = datetime.now() super(EventModel, self).save()

def create(event, context): data = json.loads(event['body'])

event = EventModel(event_id=str(uuid.uuid1()), ip=data['ip'])

event.save()

# create a response return {'statusCode': 201, 'body': json.dumps(dict(event))}

38

39

40

41

42

43

44

45

46

47

48

Build and Deploy Cloud Native Apps

SERVICE MESH

49

Service

CONTAINER

Service

CONTAINER

Service

CONTAINER

ANYINFRASTRUCTURE

OpenShift Container Platform(Enterprise Kubernetes)

Amazon Web Services Microsoft Azure Google CloudOpenStackDatacenterLaptop

ANYAPPLICATION

Service

CONTAINER

Service

CONTAINER

Service Discovery

Config Mgmt

Build Automation

Deploy Automation

Monitoring

Log Mgmt

Security

CI/CD Pipelines

try it at http://learn.openshift.com

linkedin.com/company/red-hat

youtube.com/user/RedHatVideos

facebook.com/redhatinc

twitter.com/RedHat

50

● red.ht/osm-install● learn.openshift.com● openshift.com/learn/topics/knative● bit.ly/knative-tutorial ● github.com/kedacore/keda

Thank you

OPTIO

NAL SECTION

MARKER O

R TITLE

@brianredbeard