Spring Boot on Amazon Web Services with Spring Cloud AWS

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SPRING BOOT
ON AMAZON WEB SERVICES
WITH SPRING CLOUD AWS
MACIEJ
WALKOWIAK
MATEJ
NEDIC

@maciejwalkowiak @matejnedic1

@maciejwalkowiak @matejnedic1

@maciejwalkowiak @matejnedic1
MACIEJ WALKOWIAK
- independent consultant
- Spring Cloud AWS Lead
- working with

@maciejwalkowiak @matejnedic1
https://youtube.com/springacademy

@maciejwalkowiak @matejnedic1
MATEJ NEDIC
- Software Engineer
- Spring Cloud AWS Core team member
- working at

@maciejwalkowiak @matejnedic1
SPRING CLOUD AWS

@maciejwalkowiak @matejnedic1
SPRING CLOUD AWS
•Created by Agim Emruli and Alain Shall
•First commit in February 2011
•Com...

@maciejwalkowiak @matejnedic1
SPRING CLOUD AWS
MACIEJ
WALKOWIAK
MATEJ
NEDIC
EDDU
MELENDEZ

@maciejwalkowiak @matejnedic1
SPRING CLOUD AWS
https://github.com/awspring/spring-cloud-aws

@maciejwalkowiak @matejnedic1
SPRING CLOUD AWS
https://github.com/awspring/spring-cloud-aws

@maciejwalkowiak @matejnedic1

@maciejwalkowiak @matejnedic1
SPRING BOOT
ON AMAZON WEB
SERVICES
WITH SPRING CLOUD AWS

@maciejwalkowiak @matejnedic1
Application RDBMS

@maciejwalkowiak @matejnedic1
EC2
•Updates
•Backups
•Security
•Scaling
•High Availability
RDS
•Updates
•Backups
•Security
...

@maciejwalkowiak @matejnedic1
EC2
•! Updates
•! Backups
•! Security
•! Scaling
•! High Availability
RDS
•✅ Updates
•✅ Back...

@maciejwalkowiak @matejnedic1
EC2
•! Updates
•! Backups
•! Security
•! Scaling
•! High Availability
RDS
•✅ Updates
•✅ Back...

@maciejwalkowiak @matejnedic1

@maciejwalkowiak @matejnedic1
Application RDS

@maciejwalkowiak @matejnedic1
Application
RDS - Primary

@maciejwalkowiak @matejnedic1
Application
RDS - Primary
RDS - Read Replica

@maciejwalkowiak @matejnedic1
Application
RDS - Primary
RDS - Read Replica
Asynchronous
Replication

@maciejwalkowiak @matejnedic1
Application
RDS - Primary
RDS - Read Replica
Asynchronous
Replication

@maciejwalkowiak @matejnedic1
Application
RDS - Primary
RDS - Read Replica
Asynchronous
Replication

@maciejwalkowiak @matejnedic1
Application
RDS - Primary
RDS - Read Replica
Asynchronous
Replication
Write
Read

@maciejwalkowiak @matejnedic1
Application
RDS - Primary
RDS - Read Replica #1
Asynchronous
Replication
Write
Read
RDS - Re...

@maciejwalkowiak @matejnedic1
spring:
datasource:
url: jdbc:postgresql://springone.c0x5be2ybrmz.eu-west-2.rds.amazonaws.co...

@maciejwalkowiak @matejnedic1
cloud:
aws:
rds:
instances:
-
db-instance-identifier: springone
database-name: postgres
user...

@maciejwalkowiak @matejnedic1
cloud:
aws:
rds:
instances:
-
db-instance-identifier: springone
database-name: postgres
user...

@maciejwalkowiak @matejnedic1
@Service
class UserService {
@Transactional
void registerUser(User user) {
...
}
@Transactio...

@maciejwalkowiak @matejnedic1
https://vladmihalcea.com/read-write-read-only-transaction-routing-spring/

@maciejwalkowiak @matejnedic1
•Only Tomcat connection pool supported (will change
in 3.0)
•No Aurora support (will change ...

@maciejwalkowiak @matejnedic1
•Aurora support
•IAM Authentication
•RDS Proxy Support
•Secrets Manager JDBC authentication ...

@maciejwalkowiak @matejnedic1
MESSAGING ON AWS

@maciejwalkowiak @matejnedic1
Service A Service B
HTTP

@maciejwalkowiak @matejnedic1
Service A Service B

@maciejwalkowiak @matejnedic1
Service A Service B

@maciejwalkowiak @matejnedic1
Service A Service B

@maciejwalkowiak @matejnedic1
Service A Service B

@maciejwalkowiak @matejnedic1
Service A Service B

@maciejwalkowiak @matejnedic1

@maciejwalkowiak @matejnedic1

@maciejwalkowiak @matejnedic1
https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-basic-archite...

@maciejwalkowiak @matejnedic1
@Service
public class RegistrationService {
void register(Attendee attendee) {
// persist at...

@maciejwalkowiak @matejnedic1
@Service
public class RegistrationService {
private final QueueMessagingTemplate queueMessag...

@maciejwalkowiak @matejnedic1
@Component
public class AttendeeListener {
private AttendeeRepository attendeeRepository;
pu...

@maciejwalkowiak @matejnedic1
@Component
public class AttendeeListener {
private AttendeeRepository attendeeRepository;
pu...

@maciejwalkowiak @matejnedic1
@Component
public class AttendeeListener {
private AttendeeRepository attendeeRepository;
pu...

@maciejwalkowiak @matejnedic1
@Component
public class AttendeeListener {
private AttendeeRepository attendeeRepository;
pu...

@maciejwalkowiak @matejnedic1
@Component
public class AttendeeListener {
private AttendeeRepository attendeeRepository;
pu...

@maciejwalkowiak @matejnedic1
Service A Service C
Service B
SNS

@maciejwalkowiak @matejnedic1
Service A Service C
Service B
SNS

@maciejwalkowiak @matejnedic1
Service A Service C
Service B
SNS

@maciejwalkowiak @matejnedic1
Service A Service C
Service B
SNS

@maciejwalkowiak @matejnedic1
Service A Service C
Service B
SNS

@maciejwalkowiak @matejnedic1
Service A Service C
Service B
SNS

@maciejwalkowiak @matejnedic1
Service A Service C
Service B
SNS

@maciejwalkowiak @matejnedic1
Service A Service C
Service B
SNS
HTTP
HTTP
HTTP

@maciejwalkowiak @matejnedic1
@Component
public class SnsNotificationSender {
private final NotificationMessagingTemplate
...

@maciejwalkowiak @matejnedic1
@Controller
@RequestMapping("/springone-topic")
public class NotificationController {
@Notif...

@maciejwalkowiak @matejnedic1
•Performance …
•Reactive support
•Spring Cloud Stream SQS (?)
WHAT IS COMING?

@maciejwalkowiak @matejnedic1
•Performance …
•Reactive support
•Spring Cloud Stream SQS (?)
WHAT IS COMING?

@maciejwalkowiak @matejnedic1
STORING CONFIGURATION WITH
SECRETS MANAGER
AND
PARAMETER STORE

@maciejwalkowiak @matejnedic1
https://cloud.spring.io/spring-cloud-config/reference/html/
Service A
Service B
Service C

@maciejwalkowiak @matejnedic1
https://cloud.spring.io/spring-cloud-config/reference/html/
Service A
Service B
Service C
Sp...

@maciejwalkowiak @matejnedic1
https://cloud.spring.io/spring-cloud-config/reference/html/
Service A
Service B
Service C
Sp...

@maciejwalkowiak @matejnedic1
But what if your
storage for properties
goes down?

@maciejwalkowiak @matejnedic1
AWS PARAMETER STORE

@maciejwalkowiak @matejnedic1

@maciejwalkowiak @matejnedic1
Service A Service B
Parameter store

@maciejwalkowiak @matejnedic1
spring.config.import=aws-parameterstore:/config/spring/
spring.config.import=optional:aws-pa...

@maciejwalkowiak @matejnedic1
@Value("${message}") String message;
spring.cloud.config.server.git.refreshRate=${refresh}

@maciejwalkowiak @matejnedic1
AWS SECRETS MANAGER

Parameter store
Secret Manager

Service A
Parameter store
Secret Manager

Service A
RDS
Parameter store
Secret Manager

@maciejwalkowiak @matejnedic1
spring.config.import=aws-secretmanager:/secret/db/prod/url
spring.config.import=optional:aws...

@maciejwalkowiak @matejnedic1
Parameter Store
• Type: Supports
StringList,String,
SecureString.
• 4KB char max
• Can’t be ...

@maciejwalkowiak @matejnedic1
•Secret rotation support
•Refreshing context on parameter and secret change
WHAT IS COMING?

@maciejwalkowiak @matejnedic1
OTHER SUPPORTED SERVICES
•S3
•EC2 metadata
•Cloud Watch
•ElastiCache (Redis & Memcached)
•SE...

@maciejwalkowiak @matejnedic1

@maciejwalkowiak @matejnedic1
WHEN SPRING CLOUD AWS IS NOT ENOUGH
•Spring Cloud Stream Kinesis Binder
https://github.com/s...

@maciejwalkowiak @matejnedic1
•AWS SDK:
•AWS SDK v1
•AWS SDK v2
WHEN SPRING CLOUD AWS IS NOT ENOUGH

@maciejwalkowiak @matejnedic1
•AWS SDK v2
•$ GraalVM Native Image compatible
•$ Non Blocking - Spring WebFlux friendly!
•$...

@maciejwalkowiak @matejnedic1
TESTING

@maciejwalkowiak @matejnedic1
TESTING WITH LOCALSTACK

@maciejwalkowiak @matejnedic1
version: '3.1'
services:
localstack:
image: localstack/localstack:latest
environment:
- SERV...

@maciejwalkowiak @matejnedic1
$ docker-compose up
localstack_1 |
localstack_1 | __ _______ __ __
localstack_1 | / / ____ _...

@maciejwalkowiak @matejnedic1
$ aws sqs create-queue --queue-name “hello-springone" --endpoint-url http://localhost:4566
L...

@maciejwalkowiak @matejnedic1
$ aws sqs create-queue --queue-name “hello-springone" --endpoint-url http://localhost:4566
L...

@maciejwalkowiak @matejnedic1
$ aws sqs create-queue --queue-name “hello-springone" --endpoint-url http://localhost:4566
L...

@maciejwalkowiak @matejnedic1
$ aws sqs create-queue --queue-name “hello-springone" --endpoint-url http://localhost:4566
L...

@maciejwalkowiak @matejnedic1
cloud.aws.sqs.endpoint: http://localhost:4566
LOCALSTACK
cloud.aws.sns.endpoint: http://loca...

@maciejwalkowiak @matejnedic1
@SpringBootTest
@Testcontainers
class DemoApplicationTests {
@Container
static LocalStackCon...

@maciejwalkowiak @matejnedic1
LOCALSTACK
• ACM
• API Gateway
• CloudFormation
• CloudWatch
• CloudWatch Logs
• DynamoDB
• ...

@maciejwalkowiak @matejnedic1
LOCALSTACK
• Amplify
• API Gateway V2
(WebSockets support)
• AppConfig
• Application
AutoSca...

@maciejwalkowiak @matejnedic1
LOCALSTACK
https://localstack.dev

@maciejwalkowiak @matejnedic1
FUTURE

@maciejwalkowiak @matejnedic1
•Migrate from AWS SDK v1 to AWS SDK v2
•CloudMap integration (PR ready)
•Spring Data Dynamo ...

@maciejwalkowiak @matejnedic1
SPRING CLOUD AWS
SAMPLES

@maciejwalkowiak @matejnedic1
https://github.com/awspring/spring-cloud-aws/tree/2.3.x/spring-cloud-aws-samples

https://awspring.io/

https://stratospheric.dev/
BJÖRN WILMSMANN
PHILIP RIECKS
TOM HOMBERGS

@maciejwalkowiak @matejnedic1
THANK YOU!

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