Deploy Java Lambda functions with container images

You can deploy your Lambda function code as a container image. AWS provides the following resources to help you build a container image for your Java function:

• AWS base images for Lambda

  These base images are preloaded with a language runtime and other components that are required to run the image on Lambda. AWS provides a Dockerfile for each of the base images to help with building your container image.

• Open-source runtime interface clients

  If you use a community or private enterprise base image, add a runtime interface client to the base image to make it compatible with Lambda.

AWS base images for Java

AWS provides the following base images for Java:

Tags	Runtime	Operating system	Dockerfile
11	Java 11 (Corretto)	Amazon Linux 2	Dockerfile for Java 11 on GitHub
8.al2	Java 8 (Corretto)	Amazon Linux 2	Dockerfile for Java 8.al2 on GitHub
8	Java 8 (OpenJDK)	Amazon Linux 2018.03	Dockerfile for Java 8 on GitHub

Docker Hub repository: amazon/aws-lambda-java

Amazon ECR repository: gallery.ecr.aws/lambda/java

Java runtime interface clients

Install the runtime interface client for Java using the Apache Maven package manager. Add the following to your pom.xml file:

<dependency>
    <groupId>com.amazonaws</groupId>
    <artifactId>aws-lambda-java-runtime-interface-client</artifactId>
    <version>1.0.0</version>
</dependency>

For package details, see Lambda RIC in Maven Central Repository.

You can also view the Java client source code in the AWS Lambda Java Support Libraries repository on GitHub.