polishing the layer script

Author: srprash

lambda-layer/.gitignore

@@ -5,7 +5,7 @@
 build
 
 # Ignore Terraform state files
-.terraform
+.terraform/
 *.tfstate
 *.tfstate.backup
 *.lock.hcl

lambda-layer/build-layer.sh

@@ -46,8 +46,12 @@ popd
 echo "Info: Building ADOT Lambda Java SDK Layer Code"
 ./gradlew build -PotelVersion=${version}
 
-
 ## Copy ADOT Java Agent downloaded using Gradle task and bundle it with the Lambda handler script
 echo "Info: Creating the layer artifact"
-cp "$SOURCEDIR"/build/javaagent/aws-opentelemetry-agent*.jar ./opentelemetry-javaagent.jar
-zip -qr opentelemetry-javaagent-layer.zip opentelemetry-javaagent.jar otel-instrument
+mkdir -p "$SOURCEDIR"/build/distributions/
+cp "$SOURCEDIR"/build/javaagent/aws-opentelemetry-agent*.jar "$SOURCEDIR"/build/distributions/aws-opentelemetry-javaagent.jar
+zip -r ./build/distributions/aws-opentelemetry-java-layer.zip "$SOURCEDIR"/build/distributions/aws-opentelemetry-javaagent.jar otel-instrument
+
+## Cleanup
+# revert the patch applied since it is only needed while building the layer.
+git restore ../dependencyManagement/build.gradle.kts

lambda-layer/otel-instrument

@@ -6,7 +6,7 @@ export OTEL_PROPAGATORS="${OTEL_PROPAGATORS:-xray,tracecontext,b3,b3multi}"
 
 export OTEL_SERVICE_NAME=${OTEL_SERVICE_NAME:-${AWS_LAMBDA_FUNCTION_NAME}}
 
-export JAVA_TOOL_OPTIONS="-javaagent:/opt/opentelemetry-javaagent.jar ${JAVA_TOOL_OPTIONS}"
+export JAVA_TOOL_OPTIONS="-javaagent:/opt/aws-opentelemetry-javaagent.jar ${JAVA_TOOL_OPTIONS}"
 
 if [[ $OTEL_RESOURCE_ATTRIBUTES != *"service.name="* ]]; then
   export OTEL_RESOURCE_ATTRIBUTES="service.name=${AWS_LAMBDA_FUNCTION_NAME},${OTEL_RESOURCE_ATTRIBUTES}"