envoyproxy/envoy

filter chain match extensibility

Open

#18.685 geöffnet am 19. Okt. 2021

Auf GitHub ansehen
 (6 Kommentare) (0 Reaktionen) (0 zugewiesene Personen)C++ (5.373 Forks)batch import
area/listenerarea/metadatahelp wanted

Repository-Metriken

Stars
 (27.997 Stars)
PR-Merge-Metriken
 (Durchschn. Merge 8T) (378 gemergte PRs in 30 T)

Beschreibung

Filter chain matching algorithm is fairly rigid and has some flaws (e.g. the fixed ordering requires duplication of chains causing complexity in xDS code). It is also not extensible since it forces the use of real stream properties (like destination IP).

The proposal is to add a match condition based on dynamic metadata. We also propose to make metadata match first priority before destination port match so that it can be added incrementally. If a listener chooses to use metadata matching, that would take effect by overriding existing matching.

Contributor Guide