Wasm runtimeΒΆ

The following runtimes are supported by Envoy:

Name

Description

envoy.wasm.runtime.v8

V8-based runtime

envoy.wasm.runtime.wasmtime

Wasmtime runtime

envoy.wasm.runtime.wavm

WAVM runtime

envoy.wasm.runtime.null

Compiled modules linked into Envoy

Wasmtime and WAVM runtimes are not included in Envoy release image by default.

Wasm runtime emits the following statistics:

Name

Type

Description

wasm.<runtime>.created

Counter

Total number of execution instances created

wasm.<runtime>.active

Gauge

Number of active execution instances