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Fix preStop behavior for KEDA scale-down #2625

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Fix preStop behavior for KEDA scale-down #2625

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c294814
Fix preStop behavior for KEDA scale-down
kool79 Apr 21, 2026
9f90be0
Update pod termination process for Selenium Grid
kool79 Apr 21, 2026
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4 changes: 2 additions & 2 deletions website_and_docs/content/blog/2022/scaling-grid-with-keda.md
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Original file line number Diff line number Diff line change
Expand Up @@ -118,7 +118,7 @@ spec:
lifecycle:
preStop:
exec:
command: ["/bin/sh", "-c", "curl --request POST 'localhost:5555/se/grid/node/drain' --header 'X-REGISTRATION-SECRET;'; tail --pid=$(pgrep -f '[n]ode --bind-host false --config /opt/selenium/config.toml') -f /dev/null; sleep 30s"]
command: ["/bin/sh", "-c", "curl --request POST 'localhost:5555/se/grid/node/drain' --header 'X-REGISTRATION-SECRET;'; while curl -fs localhost:5555/status >/dev/null; do sleep 1; done; sleep 10"]
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```

#### Breaking this down
Expand Down Expand Up @@ -219,4 +219,4 @@ spec:
command: ["/bin/sh", "-c", "curl --request POST 'localhost:5555/se/grid/node/drain' --header 'X-REGISTRATION-SECRET;'; tail --pid=$(pgrep -f '[n]ode --bind-host false --config /opt/selenium/config.toml') -f /dev/null; sleep 30s"]
```

That is it, your Selenium Grid pods should now scale up and down properly without any lost sessions!
That is it, your Selenium Grid pods should now scale up and down properly without any lost sessions!