WIP: Double check understanding

This commit contains an example for a clarifying question on:
#16736

TODO: after confirming this is the approach, clean up commit msg

ci/serverless/kibana_api_tests.sh

@@ -10,7 +10,7 @@ export EXIT_CODE="0"
 
 create_pipeline() {
     RESP_CODE=$(curl -s -w "%{http_code}" -o /dev/null -X PUT -H "Authorization: ApiKey $TESTER_API_KEY_ENCODED" "$KB_ENDPOINT/api/logstash/pipeline/$PIPELINE_NAME" \
-      -H 'Content-Type: application/json' -H 'kbn-xsrf: logstash' \
+      -H 'Content-Type: application/json' -H 'kbn-xsrf: logstash' -H 'x-elastic-product-origin: logstash' \
       --data-binary @"$CURRENT_DIR/test_data/$PIPELINE_NAME.json")
 
     if [[ RESP_CODE -ge '400' ]]; then
@@ -20,7 +20,8 @@ create_pipeline() {
 }
 
 get_pipeline() {
-    RESP_BODY=$(curl -s -X GET -H "Authorization: ApiKey $TESTER_API_KEY_ENCODED" "$KB_ENDPOINT/api/logstash/pipeline/$PIPELINE_NAME")
+    RESP_BODY=$(curl -s -X GET -H "Authorization: ApiKey $TESTER_API_KEY_ENCODED" -H 'x-elastic-product-origin: logstash' \
+    "$KB_ENDPOINT/api/logstash/pipeline/$PIPELINE_NAME") \
     SOURCE_BODY=$(cat "$CURRENT_DIR/test_data/$PIPELINE_NAME.json")
 
     RESP_PIPELINE_NAME=$(echo "$RESP_BODY" | jq -r '.id')
@@ -41,15 +42,17 @@ get_pipeline() {
 }
 
 list_pipeline() {
-    RESP_BODY=$(curl -s -X GET -H "Authorization: ApiKey $TESTER_API_KEY_ENCODED" "$KB_ENDPOINT/api/logstash/pipelines" | jq --arg name "$PIPELINE_NAME" '.pipelines[] | select(.id==$name)' )
+    RESP_BODY=$(curl -s -X GET -H "Authorization: ApiKey $TESTER_API_KEY_ENCODED" -H 'x-elastic-product-origin: logstash' \
+    "$KB_ENDPOINT/api/logstash/pipelines" | jq --arg name "$PIPELINE_NAME" '.pipelines[] | select(.id==$name)' )
     if [[ -z "$RESP_BODY" ]]; then
       EXIT_CODE=$(( EXIT_CODE + 1 ))
       echo "Fail to list pipeline."
     fi
 }
 
 delete_pipeline() {
-    RESP_CODE=$(curl -s -w "%{http_code}" -o /dev/null -X DELETE -H "Authorization: ApiKey $TESTER_API_KEY_ENCODED" "$KB_ENDPOINT/api/logstash/pipeline/$PIPELINE_NAME" \
+    RESP_CODE=$(curl -s -w "%{http_code}" -o /dev/null -X DELETE -H "Authorization: ApiKey $TESTER_API_KEY_ENCODED" -H 'x-elastic-product-origin: logstash' \
+    "$KB_ENDPOINT/api/logstash/pipeline/$PIPELINE_NAME" \
       -H 'Content-Type: application/json' -H 'kbn-xsrf: logstash' \
       --data-binary @"$CURRENT_DIR/test_data/$PIPELINE_NAME.json")