Java on AWS 2020-12-15

Portland Java User Group meetup
December 15, 2020
Portland Oregon

Topics covered:
- Amazon Corretto
- AWS CDK
- AWS SDK
- AWS Lambda
- TestContainers and LocalStack

Transcript

1. Sean Sullivan Portland Java User Group December 15, 2020 Java on AWS
2. This presentation reflects my personal opinion. It does not represent the views of my employer.
3. Java is fine 2020
5. which JDK should I use?
6. Oracle JDK Amazon Corretto
7. https://aws.amazon.com/corretto/
8. Corretto provided at no-cost multi-platform long-term support from Amazon released quarterly
9. Amazon runs Corretto internally on thousands of production services
10. Corretto is released under the same open source license as OpenJDK
11. https://github.com/corretto/corretto-jdk/
12. Corretto is covered on the same basis as all other supported AWS Services and software. Already have an AWS Support Plan?
13. JDK 8 JDK 11 JDK 15
14. Corretto is multi-platform Linux Windows MacOS
15. Corretto on Linux x86 ARM
16. https://twitter.com/errcraft/status/1177385675340959744 September 2019 Corretto on ARM64
17. Corretto Docker images
18. docker pull amazoncorretto:8 docker pull amazoncorretto:15 docker pull amazoncorretto:11
19. docker manifest inspect amazoncorretto:11
20. { "mediaType": "application/vnd.docker.distribution.manifest.v2+json", "size": 742, "digest": “sha256:9e612069601762761f296c13ecb8bca198f1821ab931fa6ca7e7db6fc644ef30 ", "platform": { "architecture": "amd64", "os": "linux" } } x86
21. { "mediaType": "application/vnd.docker.distribution.manifest.v2+json", "size": 742, "digest": “sha256:e71b5f2be284dfaa3a19cad2370600d1205fb0a41bbbe53dc530505c3ffc b1cb", "platform": { "architecture": "arm64", "os": "linux", "variant": "v8" } } ARM
22. docker run amazoncorretto:11 java -version openjdk version "11.0.9.1" 2020-11-04 LTS OpenJDK Runtime Environment Corretto-11.0.9.12.1 (build 11.0.9.1+12-LTS) OpenJDK 64-Bit Server VM Corretto-11.0.9.12.1 (build 11.0.9.1+12-LTS, mixed mode)
23. docker run amazoncorretto:11 uname -s -m Linux x86_64 x86
24. docker run arm64v8/amazoncorretto:11 java -version openjdk version "11.0.9.1" 2020-11-04 LTS OpenJDK Runtime Environment Corretto-11.0.9.12.1 (build 11.0.9.1+12-LTS) OpenJDK 64-Bit Server VM Corretto-11.0.9.12.1 (build 11.0.9.1+12-LTS, mixed mode)
25. docker run arm64v8/amazoncorretto:11 uname -s -m Linux aarch64 ARM 64
26. https://aws.amazon.com/ec2/graviton/
27. AWS re:Invent December 1, 2020
28. AWS Graviton
29. faster Java crypto?
30. https://github.com/corretto/amazon-corretto-crypto-provider
31. “algorithms are primarily backed by OpenSSL's implementations”
32. Maven pom.xml
33. com.amazon.corretto.crypto.provider.AmazonCorrettoCryptoProvider.install()
34. Infrastructure as Code?
35. Infrastructure as YAML Infrastructure as JSON Infrastructure as HCL
36. AWS CDK https://aws.amazon.com/cdk/
37. define your infrastructure in a familiar programming language
38. TypeScript Java C# Python CDK languages
39. writing YAML by hand AWS CDK
40. CDK is open source
41. npm install -g aws-cdk
42. cdk synth cdk deploy mkdir my-project cd my-project cdk init app --language java
44. Maven pom.xml
45. import software.amazon.awscdk.core.Construct; import software.amazon.awscdk.core.Duration; import software.amazon.awscdk.core.Stack; import software.amazon.awscdk.core.StackProps; CDK core classes
46. import software.amazon.awscdk.services.sns.Topic; import software.amazon.awscdk.services.sqs.Queue; import software.amazon.awscdk.services.lambda.Function; CDK Java imports
48. AWS SDK for Java
49. AWS SDK != AWS CDK
50. AWS SDK v1 AWS SDK v2
51. <dependency> <groupId>software.amazon.awssdk</groupId> <artifactId>dynamodb</artifactId> <version>2.15.45</version> </dependency> Maven pom.xml
52. import software.amazon.awssdk.regions.Region; import software.amazon.awssdk.services.dynamodb.DynamoDbClient; import software.amazon.awssdk.services.dynamodb.model.ListTablesResponse; import software.amazon.awssdk.services.dynamodb.model.ListTablesRequest; Import statements
54. Serverless Java?
55. AWS Lambda
56. AWS Lambda
57. Maven pom.xml
59. public class Handler implements RequestHandler<S3Event, String> public String handleRequest(S3Event s3event, Context context) { // handle S3 event }
60. Lambda Powertools
61. Integration Tests
62. LocalStack
63. https://github.com/localstack/localstack
64. docker pull localstack/localstack
65. LocalStack + TestContainers
66. a Java library for embedding Docker containers
67. Maven pom.xml
68. TestContainers import org.testcontainers.utility.DockerImageName; import org.testcontainers.containers.localstack.LocalStackContainer; import static org.testcontainers.containers.localstack.LocalStackContainer.Service.S3; import static org.testcontainers.containers.localstack.LocalStackContainer.Service.SQS;
69. TestContainers DockerImageName IMAGE_NAME = DockerImageName.parse(“localstack/localstack:0.12.3") public static LocalStackContainer CONTAINER = new LocalStackContainer(IMAGE_NAME) .withServices(S3, SQS);
70. Final thoughts
71. Amazon Corretto Java on ARM64 Graviton2 instance types AWS CDK
72. Questions?
73. The End