envoy: keep ADS policy maps alive - #1982
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NPDS and NPHDS share the ADS stream with LDS. Removing the final listener used to destroy their maps while the stream kept the subscriptions, so later policy responses were treated as unwatched. Pin both maps for the ADS stream lifetime so policy updates remain subscribed and processed. Signed-off-by: Kateryna Nezdolii <kateryna.nezdolii@gmail.com>
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NPDS and NPHDS share the ADS stream with LDS. Removing the final listener used to destroy their maps while the stream kept the subscriptions, so later policy responses were treated as unwatched. Pin both maps for the ADS stream lifetime so policy updates remain subscribed and processed.
Fix for cilium/cilium#47624