Setting a null value to a node metadata is expected to remove it from
subsequent reads. This is true both for static node metadata (defined in
the agent configuration file) as well as for dynamic node metadata
(defined via the Nomad API).
Null values for static metadata must be persisted to indicate that the
value has been removed, but strictly dynamic metadata null values can be
removed from state and client memory.
Fixes#14617
Dynamic Node Metadata allows Nomad users, and their jobs, to update Node metadata through an API. Currently Node metadata is only reloaded when a Client agent is restarted.
Includes new UI for editing metadata as well.
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Co-authored-by: Phil Renaud <phil.renaud@hashicorp.com>
