feat(chart): enable automatic browser leftovers cleanup in chart

Signed-off-by: Viet Nguyen Duc <nguyenducviet4496@gmail.com>

README.md

@@ -952,15 +952,15 @@ of jobs that have already finished but failed to fully stop the browser, or temp
 file system (notably on Chrome-based browsers). To avoid these filling up resources like process IDs and file system
 usage in the container, there is an automatic cleanup script running every hour in the node containers. This will
 clean up old processes and old temporary files. By default, this is disabled. When enabled, this will clean up browsers
-running for longer than 20 minutes, and files older than 1 day. These can be enabled and tweaked with the following
+running for longer than 2 hours, and files older than 1 day. These can be enabled and tweaked with the following
 environment variables:
 
 * `SE_ENABLE_BROWSER_LEFTOVERS_CLEANUP`: default value `false`, set to `true` to enable the cleanup.
 * `SE_BROWSER_LEFTOVERS_INTERVAL_SECS`: default value `3600` (1 hour), cleanup interval in seconds.
 * `SE_BROWSER_LEFTOVERS_PROCESSES_SECS`: default value `7200` (2 hours), browsers running for longer than this time will be killed.
 * `SE_BROWSER_LEFTOVERS_TEMPFILES_DAYS`: default value `1` (1 day), files generated by Chrome-based browsers in `/tmp` will be removed after these number of days (ignored when using Firefox).
 
-If you use Selenium for long-running sessions and expect browsers to be running for longer than 20 minutes, either do
+If you use Selenium for long-running sessions and expect browsers to be running for longer than 2 hours, either do
 not set `SE_ENABLE_BROWSER_LEFTOVERS_CLEANUP` to `true` (leave the default value of `false`), or tweak
 `SE_BROWSER_LEFTOVERS_PROCESSES_SECS` to set a value higher than your expected long-running browser processes.
 

charts/selenium-grid/templates/node-configmap.yaml

@@ -26,6 +26,18 @@ data:
   SE_DRAIN_AFTER_SESSION_COUNT: '{{- and (eq (include "seleniumGrid.useKEDA" .) "true") (eq .Values.autoscaling.scalingType "job") | ternary "1" "0" -}}'
   SE_NODE_GRID_URL: '{{ include "seleniumGrid.url" .}}'
   SE_NODE_GRID_GRAPHQL_URL: '{{ include "seleniumGrid.graphqlURL" . }}'
+{{- if $.Values.nodeConfigMap.leftoversCleanup.enabled }}
+  SE_ENABLE_BROWSER_LEFTOVERS_CLEANUP: 'true'
+  {{- with $.Values.nodeConfigMap.leftoversCleanup.jobIntervalInSecs }}
+  SE_BROWSER_LEFTOVERS_INTERVAL_SECS: '{{ . }}'
+  {{- end }}
+  {{- with $.Values.nodeConfigMap.leftoversCleanup.browserElapsedTimeInSecs }}
+  SE_BROWSER_LEFTOVERS_PROCESSES_SECS: '{{ . }}'
+  {{- end }}
+  {{- with $.Values.nodeConfigMap.leftoversCleanup.tmpFilesAfterDays }}
+  SE_BROWSER_LEFTOVERS_TEMPFILES_DAYS: '{{ . }}'
+  {{- end }}
+{{- end }}
 {{- $fileProceeded := list -}}
 {{- range $path, $_ :=  .Files.Glob $.Values.nodeConfigMap.extraScriptsImportFrom }}
   {{- $fileName := base $path -}}

charts/selenium-grid/values.yaml

@@ -22,7 +22,7 @@ global:
     # liveness probe method `exec.command` is using a script is mounted from `nodeConfigMap.extraScripts.nodeProbe.sh`
     defaultNodeLivenessProbe: exec
     # probe logs output can be retrieved using `kubectl logs`
-    stdoutProbeLog: true
+    stdoutProbeLog: false
 
 tls:
   enabled: false
@@ -117,6 +117,12 @@ nodeConfigMap:
     nodeProbe.sh:
   # Name of volume mount is used to mount scripts in the ConfigMap
   scriptVolumeMountName:
+  # Automatic browser leftovers cleanup stuck browser processes, tmp files
+  leftoversCleanup:
+    enabled: false
+    jobIntervalInSecs: 3600
+    browserElapsedTimeInSecs: 7200
+    tmpFilesAfterDays: 1
   # Custom annotations for configmap
   annotations: {}
 

tests/charts/templates/render/dummy.yaml

@@ -120,6 +120,8 @@ videoRecorder:
       RCLONE_CONFIG_S3_NO_CHECK_BUCKET: "true"
 
 nodeConfigMap:
+  leftoversCleanup:
+    enabled: true
   extraScripts:
     nodeCustomTask.sh: |
       #!/bin/bash

tests/charts/templates/render/dummy_solution.yaml

@@ -104,6 +104,8 @@ selenium-grid:
         RCLONE_CONFIG_S3_NO_CHECK_BUCKET: "true"
 
   nodeConfigMap:
+    leftoversCleanup:
+      enabled: true
     extraScripts:
       nodeCustomTask.sh: |
         #!/bin/bash

tests/charts/templates/test.py

@@ -203,6 +203,19 @@ def test_terminationGracePeriodSeconds_in_deployment_autoscaling(self):
                 count += 1
         self.assertEqual(count, len(resources_name), "node.terminationGracePeriodSeconds doesn't inherit the global value autoscaling.terminationGracePeriodSeconds")
 
+    def test_enable_leftovers_cleanup(self):
+        resources_name = ['{0}selenium-node-config'.format(RELEASE_NAME)]
+        count = 0
+        for doc in LIST_OF_DOCUMENTS:
+            if doc['metadata']['name'] in resources_name and doc['kind'] == 'ConfigMap':
+                logger.info(f"Assert ENV vars for function leftovers cleanup is set to Node ConfigMap")
+                self.assertEqual(doc['data']['SE_ENABLE_BROWSER_LEFTOVERS_CLEANUP'], 'true')
+                self.assertEqual(doc['data']['SE_BROWSER_LEFTOVERS_INTERVAL_SECS'], '3600')
+                self.assertEqual(doc['data']['SE_BROWSER_LEFTOVERS_PROCESSES_SECS'], '7200')
+                self.assertEqual(doc['data']['SE_BROWSER_LEFTOVERS_TEMPFILES_DAYS'], '1')
+                count += 1
+        self.assertEqual(count, len(resources_name), "No node config resources found")
+
 if __name__ == '__main__':
     failed = False
     try: