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[v1.39] Backports 2026-11-12 - #2168
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[ upstream commit 37cceaf ] Listeners started accepting connections before the first NetworkPolicy update was installed, so connections accepted in that window had no policy for local endpoints and every request on them failed with 500 for the lifetime of the connection. The NPDS init target now becomes ready when the first policy update is installed, or after 5 seconds at most, and is shared by every listener. Signed-off-by: Mads Jon Nielsen <madsjon@gmail.com>
…on check [ upstream commit cc495ed ] SourceAddressSocketOption skips restoring the ingress (or original) source address when the upstream destination is local. The destination locality must always be determined from the actual destination address of the upstream connection. The destination filter state of the downstream connection is racy with L7 LB, as the upstream connection pool, and the socket option with it, is shared among many downstream connections. Use the remote address of the upstream socket, which Envoy sets before STATE_PREBIND options are applied. Fixes: 71e08fc ("bpf_metadata: Skip original source address for same node L7 LB destinations") Fixes: cilium/cilium#49710 Signed-off-by: Filip Grzonkowski <grzonu@gmail.com>
[ upstream commit f0ad6d1 ] Use of CiliumDestinationFilterState has been replaced with the socket destination address that Envoy always sets before setting socket options. Remove dead code no longer needed. Signed-off-by: Jarno Rajahalme <jarno@isovalent.com>
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