testcontainers-lambda

This repo is a small sample on how to use Testcontainers to test a Spring Boot app using a Lambda function on LocalStack.

How to use

Start LocalStack by using the docker-compose file: docker compose up. Change and build your Lambda function:

• cd lambda
• mvn clean package shade:shade

You can find the AWS CLI command to create the Lambda function in the src/main/resources/awslocal-commands.sh file: From the lambda folder:

awslocal lambda create-function \
--function-name lambda-demo \
--runtime java11 \
--handler lambda.Lambda::handleRequest \
--memory-size 512 \
--timeout 60 \
--role arn:aws:iam::000000000000:role/lambda-role \
--zip-file fileb://target/lambda.jar

Start the Spring Boot app: mvn spring-boot:run.

You can also find the update command in the same file.

Use curl: curl -X GET http://localhost:8080/hello%20world and the output will be:

This is your message in upper case: HELLO WORLD .

To run the test using Testcontainrs just run: mvn test in the root folder, or by using your IDE provided interface.