K8s: Node preStop rely on local PID

Signed-off-by: Viet Nguyen Duc <[email protected]>

Author: VietND96

Diff for: Makefile

@@ -932,15 +932,15 @@ chart_test_autoscaling_disabled:
 	./tests/charts/make/chart_test.sh NoAutoscaling
 
 chart_test_autoscaling_deployment_https:
-	PLATFORMS=$(PLATFORMS) CHART_FULL_DISTRIBUTED_MODE=true CHART_ENABLE_BASIC_AUTH=true TEST_EXTERNAL_DATASTORE=postgresql TEST_MULTIPLE_VERSIONS=true AUTOSCALING_COOLDOWN_PERIOD=60 SELENIUM_GRID_MONITORING=false TEST_PATCHED_KEDA=$(TEST_PATCHED_KEDA) \
+	PLATFORMS=$(PLATFORMS) CHART_FULL_DISTRIBUTED_MODE=true CHART_ENABLE_BASIC_AUTH=true TEST_EXTERNAL_DATASTORE=postgresql TEST_MULTIPLE_VERSIONS=true AUTOSCALING_COOLDOWN_PERIOD=30 SELENIUM_GRID_MONITORING=false TEST_PATCHED_KEDA=$(TEST_PATCHED_KEDA) \
 	SECURE_INGRESS_ONLY_DEFAULT=true INGRESS_DISABLE_USE_HTTP2=true SELENIUM_GRID_PROTOCOL=https CHART_ENABLE_INGRESS_HOSTNAME=true SELENIUM_GRID_PORT=443 \
 	SELENIUM_GRID_AUTOSCALING_MIN_REPLICA=0 MAX_SESSIONS_FIREFOX=1 MAX_SESSIONS_EDGE=1 MAX_SESSIONS_CHROME=1 TEST_NAME_OVERRIDE=true \
 	VERSION=$(TAG_VERSION) VIDEO_TAG=$(FFMPEG_TAG_VERSION)-$(BUILD_DATE) KEDA_BASED_NAME=$(KEDA_BASED_NAME) KEDA_BASED_TAG=$(KEDA_BASED_TAG) NAMESPACE=$(NAMESPACE) BINDING_VERSION=$(BINDING_VERSION) BASE_VERSION=$(BASE_VERSION) \
 	TEMPLATE_OUTPUT_FILENAME="k8s_fullDistributed_basicAuth_secureIngress_defaultCerts_ingressHostName_disableHttp2_autoScaling_patchKEDA_scaledObject_subPath.yaml" \
 	./tests/charts/make/chart_test.sh DeploymentAutoscaling
 
 chart_test_autoscaling_deployment:
-	PLATFORMS=$(PLATFORMS) TEST_EXISTING_KEDA=true RELEASE_NAME=selenium CHART_ENABLE_TRACING=true TEST_PATCHED_KEDA=$(TEST_PATCHED_KEDA) \
+	PLATFORMS=$(PLATFORMS) TEST_EXISTING_KEDA=true RELEASE_NAME=selenium CHART_ENABLE_TRACING=true TEST_PATCHED_KEDA=$(TEST_PATCHED_KEDA) AUTOSCALING_COOLDOWN_PERIOD=30 \
 	SECURE_CONNECTION_SERVER=true SECURE_USE_EXTERNAL_CERT=true SERVICE_TYPE_NODEPORT=true SELENIUM_GRID_PROTOCOL=https SELENIUM_GRID_HOST=$$(hostname -I | cut -d' ' -f1) SELENIUM_GRID_PORT=31444 \
 	SELENIUM_GRID_AUTOSCALING_MIN_REPLICA=1 SET_MAX_REPLICAS=3 TEST_DELAY_AFTER_TEST=2 SELENIUM_GRID_MONITORING=false  \
 	VERSION=$(TAG_VERSION) VIDEO_TAG=$(FFMPEG_TAG_VERSION)-$(BUILD_DATE) KEDA_BASED_NAME=$(KEDA_BASED_NAME) KEDA_BASED_TAG=$(KEDA_BASED_TAG) NAMESPACE=$(NAMESPACE) BINDING_VERSION=$(BINDING_VERSION) BASE_VERSION=$(BASE_VERSION) \

Diff for: charts/selenium-grid/configs/node/nodePreStop.sh

@@ -4,10 +4,19 @@ probe_name="lifecycle.${1:-"preStop"}"
 SE_NODE_PORT=${SE_NODE_PORT:-"5555"}
 ts_format=${SE_LOG_TIMESTAMP_FORMAT:-"%Y-%m-%d %H:%M:%S,%3N"}
 NODE_CONFIG_DIRECTORY=${NODE_CONFIG_DIRECTORY:-"/opt/bin"}
+PRESTOP_WAIT_STRATEGY=${SE_NODE_PRESTOP_WAIT_STRATEGY:-"local"}
 
 max_time=3
 retry_time=5
 
+if [ "${PRESTOP_WAIT_STRATEGY}" = "local" ]; then
+  echo "$(date -u +"${ts_format}") [${probe_name}] - Using pre-stop strategy local to wait for current sessions to be finished"
+  while pgrep -f 'java.*selenium' | grep -v $$; do sleep 5; done
+  exit 0
+fi
+
+echo "$(date -u +"${ts_format}") [${probe_name}] - Using pre-stop strategy remote to wait for current sessions to be finished"
+
 ID=$(echo $RANDOM)
 tmp_node_file="/tmp/nodeProbe${ID}"