https://github.com/akhenakh/wasm-filter-go

experiments with WASM Envoy and Go
https://github.com/akhenakh/wasm-filter-go

Last synced: 24 days ago
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experiments with WASM Envoy and Go

• Host: GitHub
• URL: https://github.com/akhenakh/wasm-filter-go
• Owner: akhenakh
• Created: 2024-07-19T01:16:51.000Z (4 months ago)
• Default Branch: main
• Last Pushed: 2024-07-26T17:39:29.000Z (3 months ago)
• Last Synced: 2024-09-14T04:38:29.268Z (about 2 months ago)
• Language: Go
• Size: 239 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# WASM go Filter for Envoy

## Build

```

tinygo build -o plugin.wasm -scheduler=none -target=wasi ./main.go

```

## Testing

```

envoy -c ./envoy.yaml --concurrency 2 --log-format '%v' 

```

## Optimization GC

Memory leaks exist in the Wasm plug-in for an Envoy proxy compiled by using TinyGo. The proxy-wasm-go-sdk community recommends that you use nottinygc for compilation optimization. Perform the following steps to use nottinygc for compilation optimization:

Add the following import code to the beginning of the main.go file:

```go

import _ "github.com/wasilibs/nottinygc"

```

If no dependencies are found, you can run the go mod tidy command to automatically download the dependencies.

Run the following command to compile the code:

```sh

tinygo build -o plugin.wasm -gc=custom -tags='custommalloc nottinygc_envoy'  -target=wasi -scheduler=none main.go

```

The preceding command sets the -gc and -tags parameters. For more information, see nottinygc.