How to run a spring cloud function as AWS lambda using custom java 17 base image? Kindly give a sample dockerfile for the same?


Java 17 is not supported by aws lambda. I need to create a lambda function using spring cloud and java 17 as base image. What dependencies i must install in my java 17 base image?

1 Answer

Here are the dependencies you may need to include in your Java base image to support Spring Cloud and AWS Lambda:

Java runtime environment (JRE): This should be included in your Java base image. You can use OpenJDK or Oracle JDK as the JRE.

AWS Lambda Java runtime interface: This is provided by the AWS Lambda Java SDK, which you can include as a dependency in your deployment package.

Spring Cloud AWS dependencies: These include the Spring Cloud AWS Core and Spring Cloud AWS Context modules, which provide integration with AWS services such as S3, DynamoDB, and SQS. You can include these dependencies in your deployment package using Maven or Gradle.

Spring Boot dependencies: Depending on your use case, you may also need to include Spring Boot dependencies in your deployment package. However, since Spring Boot does not yet officially support Java 17, you may need to use an older version of Spring Boot that supports Java 16 or earlier.

Here's an example Dockerfile that uses a lightweight Java 17 base image and includes the necessary dependencies:

FROM adoptopenjdk:17-jre-hotspot

RUN mkdir -p /opt/app

WORKDIR /opt/app

# Copy the deployment package into the container
COPY target/my-lambda-function.jar /opt/app

# Install the AWS Lambda Java runtime interface
RUN curl -sL -o /opt/app/aws-lambda-java-core.jar

# Install the Spring Cloud AWS dependencies
RUN curl -sL -o /opt/app/spring-cloud-aws-core.jar && \
    curl -sL -o /opt/app/spring-cloud-aws-context.jar

CMD ["java", "-jar", "/opt/app/my-lambda-function.jar"]

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answered a year ago

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