Fix Celery worker liveness probe hostname lookup#67471
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jscheffl merged 3 commits intoMay 26, 2026
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…67471) (#67558) * Fix Celery worker liveness probe hostname lookup * Add chart newsfragment for Celery liveness probe fix * Address review feedback for Celery liveness probe fix (cherry picked from commit eacbd69) Co-authored-by: Manan Bhatt <[email protected]>
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Description
The default Celery worker liveness probe currently builds the Celery node name with the OS-level
hostnameexecutable:celery inspect ping -d celery@$(hostname)Some minimal container images do not include that executable, which makes the probe fail before it can check whether the Celery worker is alive.
This keeps the same behavior of targeting the worker container's hostname, but reads it with Python's standard
socket.gethostname()instead:celery inspect ping -d celery@$(python -c 'import socket; print(socket.gethostname())')The probe already depends on Python to run Celery, so this avoids adding another OS binary requirement. Kubernetes also documents that the container hostname is available through the
gethostnamefunction call: https://kubernetes.io/docs/concepts/containers/container-environment/Testing
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