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advancedConfiguration Management: ConfigMaps, Secrets & the Downward API

What does the Downward API expose that a ConfigMap or Secret can't?

Information about the Pod itself — its own name, namespace, labels, or resource limits — sourced directly from the Pod's own spec/metadata, rather than externally-defined key-value configuration data a ConfigMap or Secret would hold.

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What does the Downward API expose that a ConfigMap or Secret can't?

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