This application makes a simple request to S3.ListBuckets using the AWS SDK v2. You can find
deployment scripts using Terraform that are configured to deploy this sample app to AWS Lambda and
API Gateway while publishing and using the OpenTelemetry layers.
- Java for building this repository
- Terraform
- AWS credentials, either using environment variables or via the CLI and
aws configure
First, in the java subfolder of this repository, build all the artifacts.
./gradlew build
Then, decide if you want to try the wrapper or the agent version. Navigate to the appropriate subfolder of deploy and deploy with Terraform.
terraform init
terraform apply
Use the following command to configure runtime and architecture
TF_VAR_architecture=x86_64 \
TF_VAR_runtime=java11 \
terraform apply -auto-approve
For the agent version, to change the configuration of the OpenTelemetry collector, you can provide the ARN of a Lambda layer with a custom collector configuration in a file named config.yaml when prompted after running the terraform apply command.
After deployment, a URL which can be used to invoke the function via API Gateway will be displayed. The agent version tends to take 10-20s for the first request, while the wrapper version tends to take 5-10s. Confirm that spans are logged in the CloudWatch logs for the function on the AWS Console either for the wrapper or for the agent.