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
   

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2. This presentation reflects
   my personal opinion.
   It does not represent
   the views of my employer.
   

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3. Java is fine
   2020
   

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5. which JDK should I use?
   

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6. Oracle JDK
   Amazon
   Corretto
   

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7. https://aws.amazon.com/corretto/
   

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8. Corretto
   provided at no-cost
   multi-platform
   long-term support from Amazon
   released quarterly
   

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9. Amazon runs Corretto
   internally on thousands of
   production services
   

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10. Corretto is released
    under the same
    open source license
    as OpenJDK
    

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11. https://github.com/corretto/corretto-jdk/
    

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12. Corretto is covered on the same
    basis as all other supported
    AWS Services and software.
    Already have an AWS Support Plan?
    

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13. JDK 8
    JDK 11
    JDK 15
    

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14. Corretto is multi-platform
    Linux
    Windows
    MacOS
    

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15. Corretto on Linux
    x86
    ARM
    

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16. https://twitter.com/errcraft/status/1177385675340959744
    September 2019
    Corretto on ARM64
    

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17. Corretto Docker images
    

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18. docker pull amazoncorretto:8
    docker pull amazoncorretto:15
    docker pull amazoncorretto:11
    

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19. docker manifest inspect amazoncorretto:11
    

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20. {
    "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
    "size": 742,
    "digest":
    “sha256:9e612069601762761f296c13ecb8bca198f1821ab931fa6ca7e7db6fc644ef30
    ",
    "platform": {
    "architecture": "amd64",
    "os": "linux"
    }
    }
    x86
    

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21. {
    "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
    "size": 742,
    "digest":
    “sha256:e71b5f2be284dfaa3a19cad2370600d1205fb0a41bbbe53dc530505c3ffc
    b1cb",
    "platform": {
    "architecture": "arm64",
    "os": "linux",
    "variant": "v8"
    }
    }
    ARM
    

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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)
    

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23. docker run amazoncorretto:11 uname -s -m
    Linux x86_64 x86
    

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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)
    

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25. docker run arm64v8/amazoncorretto:11 uname -s -m
    Linux aarch64 ARM 64
    

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26. https://aws.amazon.com/ec2/graviton/
    

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27. AWS re:Invent
    December 1, 2020
    

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28. AWS Graviton
    

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29. faster Java crypto?
    

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30. https://github.com/corretto/amazon-corretto-crypto-provider
    

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31. “algorithms are primarily
    backed by OpenSSL's
    implementations”
    

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32. Maven pom.xml
    

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33. com.amazon.corretto.crypto.provider.AmazonCorrettoCryptoProvider.install()
    

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34. Infrastructure as Code?
    

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35. Infrastructure as YAML
    Infrastructure as JSON
    Infrastructure as HCL
    

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36. AWS CDK
    https://aws.amazon.com/cdk/
    

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37. define your infrastructure
    in a familiar
    programming language
    

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38. TypeScript
    Java
    C#
    Python
    CDK languages
    

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39. writing
    YAML
    by hand
    AWS CDK
    

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40. CDK is open source
    

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41. npm install -g aws-cdk
    

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42. cdk synth
    cdk deploy
    mkdir my-project
    cd my-project
    cdk init app --language java
    

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44. Maven pom.xml
    

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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
    

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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
    

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48. AWS SDK for Java
    

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49. AWS SDK != AWS CDK
    

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50. AWS SDK v1
    AWS SDK v2
    

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51. 
    software.amazon.awssdk
    dynamodb
    2.15.45
    
    Maven pom.xml
    

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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
    

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54. Serverless Java?
    

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55. AWS Lambda
    

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56. AWS Lambda
    

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57. Maven pom.xml
    

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59. public class Handler implements RequestHandler
    public String handleRequest(S3Event s3event, Context context) {
    // handle S3 event
    }
    

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60. Lambda Powertools
    

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61. Integration Tests
    

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62. LocalStack
    

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63. https://github.com/localstack/localstack
    

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64. docker pull localstack/localstack
    

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65. LocalStack + TestContainers
    

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66. a Java library
    for embedding
    Docker containers
    

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67. Maven pom.xml
    

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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;
    

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69. TestContainers
    DockerImageName IMAGE_NAME = DockerImageName.parse(“localstack/localstack:0.12.3")
    public static LocalStackContainer CONTAINER = new LocalStackContainer(IMAGE_NAME)
    .withServices(S3, SQS);
    

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70. Final thoughts
    

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71. Amazon Corretto
    Java on ARM64
    Graviton2 instance types
    AWS CDK
    

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72. Questions?
    

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73. The End
    

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