serverless application - who the heck needs a server?
TRANSCRIPT
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Serverless ApplicationsLars Röwekamp | CIO New Technologies | @mobileLarson
open knowledge | #WISSENTEILEN
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ÜBER OPEN KNOWLEDGEBranchenneutrale Softwareentwicklung und IT-Beratung
#WISSENTEILEN
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ÜBER MICH
Wer bin ich - und wen ja, wie viele?
• CIO New Technologies • Enterprise & Mobile • Autor, Speaker, Coach & Mentor
• Snowboard & MTB Enthusiast• Mehrfacher Vater, einfacher Ehemann
Lars Röwekamp (a.k.a. @mobileLarson)
#WISSENTEILEN
LR
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An Era of „Mindshift“
1 Mio € App(lication)
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Time is Money
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An Era of „Mindshift“
App BusinessPlan ...
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#WISSENTEILEN
#Servers?(OS? Files & Storage? CPU? Memory?)
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#WISSENTEILEN
#Customers?(Start small! Grow fast! Die faster?)
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#WISSENTEILEN
#Traffic?(Moderate but peeks!)
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#WISSENTEILEN
#Security?(OS? Patches? Access Control?)
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#WISSENTEILEN
Depends ...!(Go for max? Way to expensive!)
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I had a dream ...
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#WISSENTEILEN
Serverless
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„Kein Server ist einfacher zu
verwalten, als kein Server.“
(Werner Vogels, CTO Amazon)
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Out-of-the-Box self-scalingBackend
> IaaS> PaaS> BaaS
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#WISSENTEILEN
Road to less Server
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#WISSENTEILEN
IaaS
Road to less Server
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#WISSENTEILEN
IaaSPaaS
Road to less Server
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#WISSENTEILEN
Road to less Server
IaaSPaaS?
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#WISSENTEILEN
Road to less Server
IaaSPaaSBaaS
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Ain‘t gonna work!
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Ain‘t gonna work!
My Business LogicMy Integration Logic
My Event-based Logic
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#WISSENTEILEN
Road to less Server
IaaSPaaSBaaS
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#WISSENTEILEN
Road to less Server
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#WISSENTEILEN
Road to less Server
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#WISSENTEILEN
Road to less Server
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#WISSENTEILEN
Road to less Server
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#WISSENTEILEN
Fa#!? WTH?(a.k.a. Serverless)
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#WISSENTEILEN
Run Code, not Server!
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#WISSENTEILEN
“Run your code highly-available in the cloud in response to events and scale without any servers to manage.“
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#WISSENTEILEN
Road to less Server
• High Availability• Zero Administration• Auto-Scaling• Your Code
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#WISSENTEILEN
Road to less Server
• High Availability• Zero Administration• Auto-Scaling
•Your Code
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#WISSENTEILEN
Road to less Server
• High Availability• Zero Administration• Auto-Scaling
•Your Code• Sharing Resources• Security related Issues• Access to other Resources
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#WISSENTEILEN
Serverless
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#WISSENTEILEN
Main Player
AWS Lamdba
Google Cloud Functions *)
MicrosoftAzure Functions
IBM OpenWhisk**)
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#WISSENTEILEN
The Main Player
AWS Lamdba(serverless, event-driven compute service)
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#WISSENTEILEN
How does it work?
S3 Bucket
DynamoDB
Kinesis
EVENT
EVENT
INVOKE
Stateless Code(a.k.a. AWS Lambda)
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#WISSENTEILEN
How does it work?
S3 Bucket
DynamoDB
Kinesis
INVOKE
INVOKE
RETURN
Stateless Code(Node, Python, Java, C#)
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#WISSENTEILEN
Subscribe to ...
Amazon S3
Amazon DynamoDB
Amazon Kinesis
AWS CloudFormation
AWS CloudTrail
Amazon CloudWatch
Amazon SNS
AmazonSES
AmazonAPI GatewayAmazon
Cognito
AWSIoT
AmazonAlexa
CronEvents
DATA STORES ENDPOINTS
REPOSITORIES EVENT/MESSAGE SERVICES
Amazon Config
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Anatomy ofa Lambda
Function
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#WISSENTEILEN
Anatomy
Lambda Function
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#WISSENTEILEN
Anatomy
Handler Function
Lambda Function
</>
„...“
Event Object
Context Object
...{
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#WISSENTEILEN
Anatomy
Handler Function
Lambda Function
</>
„...“
Event Object
Context Object
...{
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#WISSENTEILEN
Anatomy
Handler Function
Lambda Function
</>
„...“
Event Object
Context Object
...{IAM Role
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#WISSENTEILEN
Anatomy
Handler Function
Lambda Function
</>
„...“
Event Object
Context Object
...{IAM Role
Return Object*
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#WISSENTEILEN
Anatomy
Lambda Function
1. Number of Calls*2. Memory Usage**{IAM Role
Return Object*(*first 1 million for free, **first 400.000 sec free for 1 GB memory)
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#WISSENTEILEN
Scenarios(gimme some “Demos“)
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#WISSENTEILEN
FaaS Scenarios
• Data & File Processing• Data and Analytics • Websites• Mobile Applications
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#WISSENTEILEN
„Hello World“
Thumbnail Creation(Data & File Processing)
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#WISSENTEILEN
„Hello World“
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#WISSENTEILEN
„Hello World“
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#WISSENTEILEN
„Hello World“ V2.0
Trend & Fault Detection(Event Streaming)
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#WISSENTEILEN
„Hello World“ V2.0
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#WISSENTEILEN
„Hello World“ V3.0
Web Application(Custom Events)
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#WISSENTEILEN
„Hello World“ V3.0
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#WISSENTEILEN
„Hello World“ V4.0
Resource Optimization(ELSE-Branch)
if (normalCase) {runOnMyServer();
} else { runLambdaInTheCloud();
}
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#WISSENTEILEN
Doing it the right Way
AWS Lamdba SDK Amazon API Gateway
vs.
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#WISSENTEILEN
Doing it the right Way
• RESTful API Gateway• Caching via CDN• DDoS Protection• Throttling Capabilities• API Stages• Decoupling of C/S Amazon API Gateway
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#WISSENTEILEN
Serverless App Architecture
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#WISSENTEILEN
Serverless App Architecture
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#WISSENTEILEN
Demo(damn, gimme some REAL Demo!)
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#WISSENTEILEN
„Hello REAL World“
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#WISSENTEILEN
„Hello REAL World“
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#WISSENTEILEN
„Hello REAL World“
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#WISSENTEILEN
„Hello REAL World“
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#WISSENTEILEN
„Hello REAL World“
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#WISSENTEILEN
„Hello REAL World“
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#WISSENTEILEN
AWSOME!(But what‘s about ...?)
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#WISSENTEILEN
#Versioning(Version vs. Alias)
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#WISSENTEILEN
#Security(Push vs. Pull Policy)
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#WISSENTEILEN
#Concurrency(max 200 at once, max 300 sec)
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#WISSENTEILEN
#ErrorHandling(What‘s the Retry Policy?)
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#WISSENTEILEN
#Tracing(Who? When? Where? What?)
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#WISSENTEILEN
#Monitoring(Logs & Metrics)
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#WISSENTEILEN
#Testing(„If i test, i do it in Production!“)
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#WISSENTEILEN
#Deployment(DIY vs. Tooling)
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#WISSENTEILEN
#NoOps(Ok, let‘s call it „LessOps“)
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#WISSENTEILEN
#VendorLock(Adrian said: „2*Vendor << DIY“)
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#WISSENTEILEN
#Pricing(Never pay for idle!)
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#WISSENTEILEN
#BestPractices(Keep calm and ...)
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#WISSENTEILEN
#Pitfalls(cold, warm, hot)
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#WISSENTEILEN
Fazit
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#WISSENTEILEN
Run Code, not Server!
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#WISSENTEILEN
Don‘tpay Idle!
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1 Mio € App
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Yeah, all Work done!
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? ? ?FRAGEN
#WISSENTEILEN
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Kontakt
LARS RÖWEKAMPCIO NEW TECHNOLOGIES
[email protected]+49 (0)441 4082 – 101
@mobileLarson@_openknowledge
OFFENKUNDIGGUT
#WISSENTEILEN
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