Java Developer on AWS 在AWS上開發Java應用 Level: 300, 中文演講 講師: Kim Kao, Solution Architect, AWS Java 應用程序一直都是企業當中不可或缺的重要平台之一，隨著市場變化與追求更好地應對市場挑戰，將傳統的 Java 應用程序搬遷上雲成了當前重要的話題。在這個主題當中我們將探討在整個 Java Eco-System 的變化，以及有哪些工具可以幫助企業在做應用系統重整與搬遷時，帶來雲端服務便利與整合的好處。 聯繫銷售: https://aws.amazon.com/tw/contact-us/ 與銷售線上聊天: https://pages.awscloud.com/tw-hkt-sales-chat.html

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Java Developer on AWS
Kim Kao
Solutions Architect
Amazon Web Services
Domain Driven Design(DDD Taiwan)

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Broadest and deepest platform choice

3. Java on Servers

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Broadest and deepest platform choice
• Purchase Options (On-demand, Reserved, Spot, Dedicated)
• Manufacturer (Intel, AWS, Amazon)
• Virtualization Type (Paravirtual, HVM, Bare Metal)
• CPU (up to 128 on x1 and x1e, 488 Logical Proc on .metal)
• Memory (up to 4T on x1e, 12T on Y)
• Disk (up to 48TB HDD / 16 TB NVMe SSD)
• Network (up to 100Gb)
• GPU (up to 8 NVIDIA Tesla V100)
• FPGA (up to 8 Xilinx Virtex UltraScale+ VU9P FPGAs)

6. .jar
.war

9. Java Containers

10. Pick the right
tool for the job
Create new
compositions easily
Improve resilience
and security
Experiment
and fail safely
Lower costs with
granular scaling
Adopt
technology faster
Optimize
team productivity
Deploy features
safely and quickly
Eight reasons why Amazon uses microservices

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Comparison of operational responsibility
AWS Lambda
Serverless functions
AWS Fargate
Serverless containers
ECS/EKS
Container-management as a service
EC2
Infrastructure-as-a-Service
More opinionated
Less opinionated
AWS manages Customer manages
• Data source integrations
• Physical hardware, software, networking,
and facilities
• Provisioning
• Application code
• Container orchestration, provisioning
• Cluster scaling
• Physical hardware, host OS/kernel,
networking, and facilities
• Application code
• Data source integrations
• Security config and updates, network config,
management tasks
• Container orchestration control plane
• Physical hardware software,
networking, and facilities
• Application code
• Data source integrations
• Work clusters
• Security config and updates, network config,
firewall, management tasks
• Physical hardware software,
networking, and facilities
• Application code
• Data source integrations
• Scaling
• Security config and updates, network config,
management tasks
• Provisioning, managing scaling and
patching of servers

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Containers and Microservices
• Do one thing, really well
• Any app, any language
• Test and deploy same immutable artifact
• Self-contained services
• Isolated execution environment
• Faster startup
• Scaling and upgrading
Container Container
Container Container

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Elastic Container Service for EC2
Scheduling and Orchestration
Cluster Manager Placement Engine
ECS AMI
Docker Agent ECS Agent
Container
1
Container
2
Container
3
Instances X1
Instance
Spot
Instance

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Elastic Container Service for Fargate
Scheduling and Orchestration
Cluster Manager Placement Engine
Container
1
Container
2
Container
3
Micro VMs
Firecracker

15. Fargate Cluster construction
--launch-type FARGATE

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Fargate CLI – Way to easy control container
https://github.com/jpignata/fargate
https://github.com/humank/fargate-java-sample

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Features on Fargate CLI
• Task – Whole lifecycle for ECS task
• Service – Create services within desired vpc, subnet, and count
• Load Balancers – easy to create for web integration
• Certificates – Import certs from ACM
• Easy Scale in, Scale out in 1 line command

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Amazon EKS
mycluster.eks.amazonaws.com
EKS workers
Kubectl
AZ 1 AZ 2 AZ 3
Your AWS account
VPC

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Kubernetes control plane
Highly available and single
tenant infrastructure
All “native AWS” components
Fronted by an NLB
VPC
API Server ASG
Etcd ASG
NLB
AZ-1 AZ-2 AZ-3
ELB
Instances
Instances

20. Java Functions

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Enabling new
application patterns
Serverless at scale
Excelling in Service
Fundamentals
SQS as an event source
Improved fan-out
5X faster reads from Kinesis
Increase to 15 minute functions
Empowering
Developers
Simplified debugging with
SAM CLI and Go debugger
Support for Go, Powershell, Node 8,
.Net Core2.1, and Python 3.7

23. N E W !
Languages
Lambda
support
for Ruby
+ Bring any Linux compatible language
runtime;
Powered by new Runtime API - Codifies
the runtime calling conventions and
integration points
Same technology powering Ruby support
in AWS Lambda
Bring any Linux compatible
language runtime
Custom Runtimes
+
AWSOPENSOURCE
o f f e r e d b y
o f f e r e d b y
o f f e r e d b y
o f f e r e d b y
PARTNERSUPPORTED

25. N E W !
Extend the Lambda execution
environment with any binaries,
dependencies, or runtimes
Lambda Layers
BUSINESS
LOGIC
LIB
A
LIB
B
BUSINESS
LOGIC
LIB
A
LIB
B
BUSINESS
LOGIC
LIB
A
LIB
B
BUSINESS
LOGIC
LIB
A
LIB
B
Programming
Model
Before
BUSINESS
LOGIC
BUSINESS
LOGIC
BUSINESS
LOGIC
BUSINESS
LOGIC
LIB
A
LIB
B
After

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Run Java as a binary execution

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Improving startup time in Java functions
• Package Size
• Resource Polling
• Database Connections
• Worker Threads
• Classpath Scanning
• JVM Ergonomics
• Eager Initialization
• Network / FileSystem

30. Java Streaming Analytics

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What is streaming data?
Typical characteristics
Low-latencyContinuous Ordered,
incremental
High volume

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Why streaming data?
Get actionable insights quickly
Source: Perishable insights, Mike Gualtieri, Forrester
Real time Seconds Minutes Hours Days Months
Valueofdatatodecision-making
Preventive/Predictive
Actionable Reactive Historical
Time critical decisions Traditional “batch” business intelligence

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Streaming with Amazon Kinesis
Easily collect, process, and analyze video and data streams in real time
Capture, process,
and store video
streams
Load data streams
into AWS data
stores
Analyze data
streams in real time
Capture, process,
and store data
streams

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Apache Flink: Stateful Computations over Streams

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Apache Flink: Stateful Computations over Streams

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AWS operational responsibility models
On-Premises Cloud
Less More
Compute Virtual Machine
EC2 Elastic Beanstalk AWS LambdaFargate
Databases MySQL MySQL on EC2
RDS MySQL RDS Aurora Aurora Serverless DynamoDB
Storage Storage
S3
Messaging ESBs
Amazon MQ Kinesis SQS / SNS
Analytics
Hadoop Hadoop on EC2 EMR Elasticsearch Service Athena

38. Tools

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AWS JVM Ecosystem
AWS SDK
for Java
Kinesis
Consumer
Library
Kinesis
Producer
Library
Kinesis
S3 Transfer
Manager
S3A
Hadoop FS
S3
Encryption
Client
Amazon S3
DynamoDB
Mapper
DynamoDB
Document
API
DynamoDB
Encryption
Client
Amazon DynamoDB
DynamoDB
Accelerator
(DAX) Client
SWF
Flow Library
Step
Functions
DSL
Workflow
Eclipse
Toolkit
Beanstalker
Maven
Plugins
Client-Side Build Tools
Third Party
Scala SDKs
SQS
Extended
Client
Library
IAM Policy
DSL
Java Mail
Client for
SES
Other
Code Deployment
AWS
CodeStar
AWS
CodeDeploy
AWS
CodePipeline
Execution Environments
AWS Elastic
Beanstalk
AWS
Lambda
Amazon EMR Amazon ECSAmazon EC2
Ships with SDK (v1)
AWS Open Source
3rd Party Open
Source
AWS Services
Legend
Ships with SDK (v2)

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SnsClient.builder()
.region(Region.US_WEST_2)
.httpClient(UrlConnectionHttpClient.create())
.build();
SnsClient.builder()
.region(Region.US_WEST_2)
.overrideConfiguration(
ClientOverrideConfiguration.builder()
.apiCallTimeout(Duration.ofSeconds(5))
.build())
.build();
SnsClient.builder()
.region(Region.US_WEST_2)
.overrideConfiguration(o -> o.apiCallTimeout(Duration.ofSeconds(5)))
.build();
SnsAsyncClient.create()
SnsClient.builder()
.region(Region.US_WEST_2)
.credentialsProvider(ProfileCredentialsProvider.create())
.build();
AWS Java SDK v2
Non-blocking Asynchronous Service Clients
Immutability through Builder Pattern
Pluggable HTTP Clients
Consumer Builder Pattern

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AWS SDK for Java v2
Modularized
Endpoint Discovery
HTTP/2 Event Streaming
Fully Non-Blocking HTTP/2 Clients
Bi-directional real-time streaming responses
URLConnection as http client
Moved off of Jackson Object Mapper at runtime
Generate resources at compile time

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AWS Toolkits for IntelliJ IDEA & Pycharm
Make it easier to develop on AWS
Open Source
Initial focus: Serverless
AWS Lambda
AWS SAM CLI Integration
Local debugging
Serverless application support
Basic resource/credential management
Will grow support across AWS
aws.amazon.com/intellij

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Infrastructure as code
Higher-level abstractions
Object oriented & extensible
Native IDE support
Open source
https://github.com/awslabs/aws-cdk
Currently in developer preview
AWS Cloud
Development
Kit

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Simple CDK example
Stack

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Synthesized Template
{
"Resources": {
"Queue4A7E3555": {
"Type": "AWS::SQS::Queue",
"Properties": { "VisibilityTimeout": 300 }
},
"QueuePolicy25439813": {
"Type": "AWS::SQS::QueuePolicy",
"Properties": {
"PolicyDocument": {
"Statement": [
{
"Action": "sqs:SendMessage",
"Condition": {
"ArnEquals": {
"aws:SourceArn": { "Ref": "TopicBFC7AF6E" }
}
},
"Effect": "Allow",
"Principal": { "Service": "sns.amazonaws.com" },
"Resource": {
"Fn::GetAtt": [ "Queue4A7E3555", "Arn" ]
}
}
],
"Version": "2012-10-17"
},
"Queues": [{ "Ref": "Queue4A7E3555" }]
}
},
"TopicBFC7AF6E": {
"Type": "AWS::SNS::Topic",
"Properties": {
"DisplayName": "Some Amazing Topic"
}
},
"TopicQueueSubscription2D098ED4": {
"Type": "AWS::SNS::Subscription",
"Properties": {
"Endpoint": {
"Fn::GetAtt": [ "Queue4A7E3555", "Arn" ]
},
"Protocol": "sqs",
"TopicArn": { "Ref": "TopicBFC7AF6E" }
}
}
}
}

47. Java Platform

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Amazon Corretto
• Amazon supported distribution of OpenJDK
• Run internally on thousands of production services
• Multiplatform: Amazon Linux 2, Windows, macOS, Docker, Ubuntu, etc.
• No cost – Distributed under open source license - no charge for use or
distribution
• No cost LTS (patches, performance improvements)
• Corretto 8 in preview, Corretto 8 & 11 expected to GA Q1 2019
• Open source – all patches and enhancements will be upstreamed to
OpenJDK - https://github.com/corretto
• More info - https://aws.amazon.com/corretto

49. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
AWS JVM Ecosystem
Kinesis
Consumer
Library
Kinesis
Producer
Library
Kinesis/Streaming
S3 Transfer
Manager
S3A
Hadoop FS
S3
Encryption
Client
Amazon S3
DynamoDB
Mapper
DynamoDB
Document
API
DynamoDB
Encryption
Client
Amazon DynamoDB
DynamoDB
Accelerator
(DAX) Client
SWF
Flow Library
Step
Functions
DSL
Workflow
Eclipse
Toolkit
Beanstalker
Maven
Plugins
Client-Side Build Tools
Third Party
Scala SDKs
SQS
Extended
Client
Library
IAM Policy
DSL
Java Mail
Client for
SES
Other
Code Deployment
AWS
CodeStar
AWS
CodeDeploy
AWS
CodePipeline
Execution Environments
AWS Elastic
Beanstalk
AWS
Lambda
Amazon EMR Amazon ECSAmazon EC2
Ships with SDK (v1)
AWS Open Source
3rd Party Open
Source
AWS Services
Legend
Ships with SDK (v2)
AWS SDK
for Java (v1)
Toolkit for
IntelliJ
Serverless
deployment
with IntelliJ
AWS SDK
for Java (v2)
New APIs
with SDK v2
Faster SDK
start-up in
Lambda
HTTP/2 Bi-
Directional
Streaming
Full duplex
streaming
Cloud
Development
Kit (CDK)
Infrastructure
as code
Amazon
Corretto
Amazon
supported
OpenJDK

50. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
Want More?
YouTube: Hands-on in the AWS Java Ecosystem – re:Invent 2018

51. Thank you!
S U M M I T © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.