Instructions for Compiling the WASM Program

1 minute read

  1. Initialize a new Golang project using the following command:

    mkdir go-filter && go mod init go-filter

  2. Copy the above Golang program in a file called filter.go

  3. With our filter program written, lets compile it using tinygo

    # Use the below command for tinygo version >= 0.33.0
tinygo build -target=wasi -o filter.wasm filter.go

# Use the below command for tinygo version < 0.33.0
tinygo build -wasm-abi=generic -target=wasi -o filter.wasm filter.go

  4. It will produce a file called filter.wasm. This compiled WASM file will be used by Fluent Bit to execute the plugin.