Answer
Kubelet updates atomic symlink-based volumes in tmpfs when API server changes.
Quick Answer
kubelet watches for ConfigMap and Secret changes via the API server using watches. When a change is detected, kubelet updates the projected files in the Pod's volume (default sync period 60s). Environment variable injections from ConfigMaps/Secrets don't update — the Pod must restart. Volume mounts update dynamically; env var injections do not.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ