use credentials

Author: idegtiarenko

.buildkite/hooks/pre-command

@@ -100,10 +100,10 @@ if [[ "${USE_PERF_CREDENTIALS:-}" == "true" ]]; then
   PERF_METRICS_USERNAME=$(vault read -field=es_username /secret/ci/elastic-elasticsearch/esbench-metics)
   PERF_METRICS_PASSWORD=$(vault read -field=es_password /secret/ci/elastic-elasticsearch/esbench-metics)
 
-  export METRICS_HOST
+  export PERF_METRICS_HOST
   export PERF_METRICS_INDEX
-  export METRICS_USERNAME
-  export METRICS_PASSWORD
+  export PERF_METRICS_USERNAME
+  export PERF_METRICS_PASSWORD
 fi
 
 # Authenticate to the Docker Hub public read-only registry

.buildkite/pipelines/periodic-micro-benchmarks.yml

@@ -3,6 +3,8 @@ steps:
     command: |
       .ci/scripts/run-gradle.sh :benchmarks:run --args 'org.elasticsearch.benchmark._nightly -rf json -rff build/result.json'
       .ci/scripts/index-micro-benchmark-results.sh
+    env:
+      USE_PERF_CREDENTIALS: "true"
     timeout_in_minutes: 300
     agents:
       provider: gcp