envoyproxy/envoy
Auf GitHub ansehenWebSockets with WSS are not working due to EnvoyFilter conflicts
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#19.645 geöffnet am 21. Jan. 2022
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Beschreibung
Title: Websockets with WSS are not working due to EnvoyFilter conflicts
Description:
An EnvoyFilter applied to an Istio configuration (e.g. to limit request size) will break the WSS and fail to initiate
101 Switching Protocols.
Repro steps:
Here's an example filter that will cause websocket functionality to stop working:
apiVersion: networking.istio.io/v1alpha3
kind: EnvoyFilter
metadata:
name: max-request-size
namespace: istio-system
spec:
configPatches:
- applyTo: HTTP_FILTER
match:
context: SIDECAR_INBOUND
listener:
filterChain:
filter:
name: envoy.filters.network.http_connection_manager
subFilter:
name: "envoy.filters.http.router"
patch:
operation: INSERT_BEFORE
value:
name: envoy.filters.http.buffer
typed_config:
'@type': type.googleapis.com/envoy.extensions.filters.http.buffer.v3.Buffer
max_request_bytes: 52428800
If this filter is removed WebSocket functionality returns to normal.
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