Set default Propagators list and bash script flags (#1226)

We want the default propagators to include both w3c context and xray, so set `OTEL_PROPAGATORS=tracecontext,baggage,xray` if it isn't already set to something else.
Users that send traces to X-Ray, especially if they enable Active Tracing, should override this value to `OTEL_PROPAGATORS=tracecontext,baggage,xray-lambda` to ensure proper span relationships.

I also added some common bash flags to align with industry standard practice.

Author: tylerbenson

java/layer-javaagent/scripts/otel-handler

@@ -1,11 +1,17 @@
 #!/bin/bash
 
+set -ef -o pipefail
+
 export JAVA_TOOL_OPTIONS="-javaagent:/opt/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}"
 fi
 
+if [[ -z "$OTEL_PROPAGATORS" ]]; then
+  export OTEL_PROPAGATORS="tracecontext,baggage,xray"
+fi
+
 export OTEL_INSTRUMENTATION_AWS_LAMBDA_FLUSH_TIMEOUT=10000
 
 ########################################

java/layer-wrapper/scripts/otel-handler

@@ -1,12 +1,18 @@
 #!/bin/bash
 
+set -ef -o pipefail
+
 export OTEL_INSTRUMENTATION_AWS_LAMBDA_HANDLER="$_HANDLER"
 export _HANDLER="io.opentelemetry.instrumentation.awslambdaevents.v2_2.TracingRequestWrapper"
 
 if [[ $OTEL_RESOURCE_ATTRIBUTES != *"service.name="* ]]; then
   export OTEL_RESOURCE_ATTRIBUTES="service.name=${AWS_LAMBDA_FUNCTION_NAME},${OTEL_RESOURCE_ATTRIBUTES}"
 fi
 
+if [[ -z "$OTEL_PROPAGATORS" ]]; then
+  export OTEL_PROPAGATORS="tracecontext,baggage,xray"
+fi
+
 export OTEL_INSTRUMENTATION_AWS_LAMBDA_FLUSH_TIMEOUT=10000
 
 # java17 runtime puts the handler to run as a command line argument and seems to prefer

java/layer-wrapper/scripts/otel-proxy-handler

@@ -1,12 +1,18 @@
 #!/bin/bash
 
+set -ef -o pipefail
+
 export OTEL_INSTRUMENTATION_AWS_LAMBDA_HANDLER="$_HANDLER"
 export _HANDLER="io.opentelemetry.instrumentation.awslambdaevents.v2_2.TracingRequestApiGatewayWrapper"
 
 if [[ $OTEL_RESOURCE_ATTRIBUTES != *"service.name="* ]]; then
   export OTEL_RESOURCE_ATTRIBUTES="service.name=${AWS_LAMBDA_FUNCTION_NAME},${OTEL_RESOURCE_ATTRIBUTES}"
 fi
 
+if [[ -z "$OTEL_PROPAGATORS" ]]; then
+  export OTEL_PROPAGATORS="tracecontext,baggage,xray"
+fi
+
 export OTEL_INSTRUMENTATION_AWS_LAMBDA_FLUSH_TIMEOUT=10000
 
 # java17 runtime puts the handler to run as a command line argument and seems to prefer

java/layer-wrapper/scripts/otel-sqs-handler

@@ -1,12 +1,18 @@
 #!/bin/bash
 
+set -ef -o pipefail
+
 export OTEL_INSTRUMENTATION_AWS_LAMBDA_HANDLER="$_HANDLER"
 export _HANDLER="io.opentelemetry.instrumentation.awslambdaevents.v2_2.TracingSqsEventWrapper"
 
 if [[ $OTEL_RESOURCE_ATTRIBUTES != *"service.name="* ]]; then
   export OTEL_RESOURCE_ATTRIBUTES="service.name=${AWS_LAMBDA_FUNCTION_NAME},${OTEL_RESOURCE_ATTRIBUTES}"
 fi
 
+if [[ -z "$OTEL_PROPAGATORS" ]]; then
+  export OTEL_PROPAGATORS="tracecontext,baggage,xray"
+fi
+
 export OTEL_INSTRUMENTATION_AWS_LAMBDA_FLUSH_TIMEOUT=10000
 
 # java17 runtime puts the handler to run as a command line argument and seems to prefer

java/layer-wrapper/scripts/otel-stream-handler

@@ -1,12 +1,18 @@
 #!/bin/bash
 
+set -ef -o pipefail
+
 export OTEL_INSTRUMENTATION_AWS_LAMBDA_HANDLER="$_HANDLER"
 export _HANDLER="io.opentelemetry.instrumentation.awslambdacore.v1_0.TracingRequestStreamWrapper"
 
 if [[ $OTEL_RESOURCE_ATTRIBUTES != *"service.name="* ]]; then
   export OTEL_RESOURCE_ATTRIBUTES="service.name=${AWS_LAMBDA_FUNCTION_NAME},${OTEL_RESOURCE_ATTRIBUTES}"
 fi
 
+if [[ -z "$OTEL_PROPAGATORS" ]]; then
+  export OTEL_PROPAGATORS="tracecontext,baggage,xray"
+fi
+
 export OTEL_INSTRUMENTATION_AWS_LAMBDA_FLUSH_TIMEOUT=10000
 
 # java17 runtime puts the handler to run as a command line argument and seems to prefer

nodejs/packages/layer/scripts/otel-handler

@@ -1,9 +1,15 @@
 #!/bin/bash
 
+set -ef -o pipefail
+
 export NODE_OPTIONS="${NODE_OPTIONS} --require /opt/wrapper.js"
 
 if [[ $OTEL_RESOURCE_ATTRIBUTES != *"service.name="* ]]; then
   export OTEL_RESOURCE_ATTRIBUTES="service.name=${AWS_LAMBDA_FUNCTION_NAME},${OTEL_RESOURCE_ATTRIBUTES}"
 fi
 
+if [[ -z "$OTEL_PROPAGATORS" ]]; then
+  export OTEL_PROPAGATORS="tracecontext,baggage,xray"
+fi
+
 exec "$@"

python/sample-apps/run.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-set -e
+set -euf -o pipefail
 
 cp -r ../src/otel .
 cp ../src/run.sh layer.sh

python/src/otel/otel_sdk/otel-instrument

@@ -1,5 +1,7 @@
 #!/bin/bash
 
+set -ef -o pipefail
+
 # Copyright The OpenTelemetry Authors
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -98,6 +100,12 @@ if [ -z "${OTEL_SERVICE_NAME}" ]; then
     export OTEL_SERVICE_NAME=$AWS_LAMBDA_FUNCTION_NAME;
 fi
 
+# - Set the propagators
+
+if [[ -z "$OTEL_PROPAGATORS" ]]; then
+  export OTEL_PROPAGATORS="tracecontext,baggage,xray"
+fi
+
 # - Set the Resource Detectors (Resource Attributes)
 #
 #   TODO: waiting on OTel Python support for configuring Resource Detectors from

utils/sam/run.sh

@@ -1,7 +1,6 @@
 #!/bin/bash
 
-set -e
-set -u
+set -euf -o pipefail
 
 echo_usage() {
 	echo "usage: Deploy Lambda layer/application by SAM"