Comments (2)
yskopets
commented on July 18, 2024
1
Hey @jeremybaumont,
Thanks for giving it a try!
Apparently, the error message is misleading.
When I run this example with the logging level set to trace, I see the following output:
getenvoy extension run --envoy-options '--component-log-level wasm:trace'
...
[debug][wasm] [bazel-out/darwin-opt/bin/external/envoy/source/extensions/common/wasm/_virtual_includes/wasm_hdr/extensions/common/wasm/wasm_vm.h:45] WasmVm created envoy.wasm.runtime.v8 now active
[debug][wasm] [external/envoy/source/extensions/common/wasm/wasm.cc:106] Base Wasm created 1 now active
[trace][wasm] [external/envoy/source/extensions/common/wasm/wasm_vm.cc:23] Failed to load Wasm module due to a missing import: __wbindgen_placeholder__.__wbindgen_describe
[trace][wasm] [external/envoy/source/extensions/common/wasm/wasm_vm.cc:23] Failed to load Wasm module due to a missing import: __wbindgen_externref_xform__.__wbindgen_externref_table_grow
[trace][wasm] [external/envoy/source/extensions/common/wasm/wasm_vm.cc:23] Failed to load Wasm module due to a missing import: __wbindgen_externref_xform__.__wbindgen_externref_table_set_null
[trace][wasm] [external/envoy/source/extensions/common/wasm/wasm_vm.cc:23] Failed to load Wasm module due to a missing import: __wbindgen_placeholder__.__wbindgen_throw
[error][wasm] [external/envoy/source/extensions/common/wasm/wasm.cc:123] Wasm VM failed Wasm missing malloc
[error][wasm] [external/envoy/source/extensions/common/wasm/wasm.cc:123] Wasm VM failed Failed to initialize Wasm code
[debug][wasm] [external/envoy/source/extensions/common/wasm/wasm.cc:164] ~Wasm 0 remaining active
[debug][wasm] [bazel-out/darwin-opt/bin/external/envoy/source/extensions/common/wasm/_virtual_includes/wasm_hdr/extensions/common/wasm/wasm_vm.h:49] ~WasmVm envoy.wasm.runtime.v8 0 remaining active
[trace][wasm] [external/envoy/source/extensions/common/wasm/wasm.cc:360] Unable to create Wasm
[critical][main] [external/envoy/source/server/server.cc:101] error initializing configuration '/private/var/folders/zq/dxlbtftx6bd2rfdgs2l6fhc00000gn/T/getenvoy_extension_run284847362/envoy.tmpl.yaml': Unable to create Wasm HTTP filter me.filters.http.envoy_digest_header_filter
[info][main] [external/envoy/source/server/server.cc:704] exiting
Unable to create Wasm HTTP filter me.filters.http.envoy_digest_header_filterNotice error messages Failed to load Wasm module due to a missing import: __wbindgen_ ...
As far as I can see, you've added dependency on ring v0.16.15 which transitively brings in dependency on wasm-bindgen v0.2.68.
cargo tree --target wasm32-unknown-unknown
...
│ ├── ring v0.16.15
│ │ ├── untrusted v0.7.1
│ │ └── web-sys v0.3.45
│ │ ├── js-sys v0.3.45
│ │ │ └── wasm-bindgen v0.2.68
│ │ │ ├── cfg-if v0.1.10
│ │ │ └── wasm-bindgen-macro v0.2.68
│ │ │ ├── quote v1.0.7
│ │ │ │ └── proc-macro2 v1.0.24
│ │ │ │ └── unicode-xid v0.2.1
│ │ │ └── wasm-bindgen-macro-support v0.2.68
│ │ │ ├── proc-macro2 v1.0.24 (*)
│ │ │ ├── quote v1.0.7 (*)
│ │ │ ├── syn v1.0.45
│ │ │ │ ├── proc-macro2 v1.0.24 (*)
│ │ │ │ ├── quote v1.0.7 (*)
│ │ │ │ └── unicode-xid v0.2.1
│ │ │ ├── wasm-bindgen-backend v0.2.68
│ │ │ │ ├── bumpalo v3.4.0
│ │ │ │ ├── lazy_static v1.4.0
│ │ │ │ ├── log v0.4.11
│ │ │ │ │ └── cfg-if v0.1.10
│ │ │ │ ├── proc-macro2 v1.0.24 (*)
│ │ │ │ ├── quote v1.0.7 (*)
│ │ │ │ ├── syn v1.0.45 (*)
│ │ │ │ └── wasm-bindgen-shared v0.2.68
│ │ │ └── wasm-bindgen-shared v0.2.68
│ │ └── wasm-bindgen v0.2.68 (*)
│ │ [build-dependencies]
│ │ └── cc v1.0.61wasm-bindgen is meant for a browser environment. It relies on __wbindgen_ ... functions provided by the host environment, which is not the case for Envoy.
I don't know why ring v0.16.15 needs wasm-bindgen. I would suggest to check documentation of that library whether wasm-bindgen is optional.
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jeremybaumont
commented on July 18, 2024
1
Thanks, I understand. I got ride off ring crate, and it works fine now. Thanks for the quick answer 😄
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