added out option (#24052)

* added out option

* Added example in readme

devenv/docker/loadtest/README.md

@@ -35,6 +35,12 @@ Run load test for 10 virtual users:
 $ ./run.sh -v 10
 ```
 
+Run load test and send the results to the database "myDb" in influxDB running locally on port 8086 (with no authentication):
+
+```bash
+$ ./run.sh  -o influxdb=http://localhost:8086/myDb
+```
+
 Run auth token slow test (random query latency between 1 and 30 seconds):
 
 ```bash

devenv/docker/loadtest/run.sh

@@ -8,8 +8,9 @@ run() {
   vus='2'
   testcase='auth_token_test'
   slowQuery=''
+  out=''
 
-  while getopts ":d:u:v:c:s:" o; do
+  while getopts ":d:u:v:c:s:o:" o; do
     case "${o}" in
 				d)
             duration=${OPTARG}
@@ -26,11 +27,14 @@ run() {
         s)
             slowQuery=${OPTARG}
             ;;
+        o)  out=${OPTARG}
+            ;;
+
     esac
 	done
 	shift $((OPTIND-1))
 
-  docker run -t --network=host -v $PWD:/src -e URL=$url -e SLOW_QUERY=$slowQuery --rm -i loadimpact/k6:master run --vus $vus --duration $duration src/$testcase.js
+  docker run -t --network=host -v $PWD:/src -e URL=$url -e SLOW_QUERY=$slowQuery -e K6_OUT=$out --rm -i loadimpact/k6:master run --vus $vus --duration $duration src/$testcase.js
 }
 
 run "$@"