examples: filter_wasm_go: Upgrade to support Go 1.22.5 and TinyGo 0.32

Signed-off-by: JinXinWang <[email protected]>

examples/filter_wasm_go/README.md

@@ -7,22 +7,21 @@ This source source tree provides an example of WASM filter program with WASI mod
 Tested on
 
 * TinyGo
-  * [tinygo](https://tinygo.org/) tinygo version 0.23.0 linux/amd64 (using go version go1.18.2 and LLVM version 14.0.0)
-  * [tinygo](https://tinygo.org/) tinygo version 0.24.0 linux/amd64 (using go version go1.18.2 and LLVM version 14.0.0)
+  * [tinygo](https://tinygo.org/) tinygo version 0.32.0 linux/amd64 (using go version go1.22.5 and LLVM version 18.1.2)
 
 For Ubuntu, it's easy to install with:
 
 ```console
-$ wget https://github.com/tinygo-org/tinygo/releases/download/v0.24.0/tinygo_0.24.0_amd64.deb
-$ sudo dpkg -i tinygo_0.24.0_amd64.deb
+$ wget https://github.com/tinygo-org/tinygo/releases/download/v0.32.0/tinygo_0.32.0_amd64.deb
+$ sudo dpkg -i tinygo_0.32.0_amd64.deb
 ```
 
 ## How to build
 
 Execute _tinygo build_ as follows:
 
 ```console
-$ tinygo build -wasm-abi=generic -target=wasi -o filter.wasm filter.go
+$ tinygo build -target=wasi -o filter.wasm filter.go
 ```
 
 Finally, under the same directory, `*.wasm` file will be created:
@@ -52,12 +51,12 @@ Create fluent-bit configuration file as follows:
 [FILTER]
     Name wasm
     match dummy.*
+    Event_Format json
     WASM_Path /path/to/filter.wasm
     Function_Name go_filter
     accessible_paths .,/path/to/fluent-bit
 
 [OUTPUT]
     Name  stdout
     Match *
-
 ```

examples/filter_wasm_go/filter.go

@@ -31,11 +31,11 @@ func go_filter(tag *uint8, tag_len uint, time_sec uint, time_nsec uint, record *
 	obj.Set("time", arena.NewString(now.String()))
 	obj.Set("tag", arena.NewString(string(btag)))
 	obj.Set("original", arena.NewString(br))
-	s := obj.String()
-	s += string(rune(0)) // Note: explicit null terminator.
+
+	s := obj.String() + string(rune(0)) 
 	rv := []byte(s)
 
 	return &rv[0]
 }
 
-func main() {}
+func main() {}

examples/filter_wasm_go/go.mod

@@ -1,9 +1,5 @@
 module filter_wasm_go
 
-go 1.18
+go 1.22.5
 
-require (
-	github.com/valyala/fastjson v1.6.3 // indirect
-	github.com/vmihailenco/msgpack/v5 v5.3.5 // indirect
-	github.com/vmihailenco/tagparser/v2 v2.0.0 // indirect
-)
+require github.com/valyala/fastjson v1.6.3

examples/filter_wasm_go/go.sum

@@ -1,18 +1,2 @@
-github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/goccy/go-json v0.9.10 h1:hCeNmprSNLB8B8vQKWl6DpuH0t60oEs+TAk9a7CScKc=
-github.com/goccy/go-json v0.9.10/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
-github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
-github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=
-github.com/mailru/easyjson v0.7.7 h1:UGYAvKxe3sBsEDzO8ZeWOSlIQfWFlxbzLZe7hwFURr0=
-github.com/mailru/easyjson v0.7.7/go.mod h1:xzfreul335JAWq5oZzymOObrkdz5UnU4kGfJJLY9Nlc=
-github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/valyala/fastjson v1.6.3 h1:tAKFnnwmeMGPbwJ7IwxcTPCNr3uIzoIj3/Fh90ra4xc=
 github.com/valyala/fastjson v1.6.3/go.mod h1:CLCAqky6SMuOcxStkYQvblddUtoRxhYMGLrsQns1aXY=
-github.com/vmihailenco/msgpack/v5 v5.3.5 h1:5gO0H1iULLWGhs2H5tbAHIZTV8/cYafcFOr9znI5mJU=
-github.com/vmihailenco/msgpack/v5 v5.3.5/go.mod h1:7xyJ9e+0+9SaZT0Wt1RGleJXzli6Q/V5KbhBonMG9jc=
-github.com/vmihailenco/tagparser/v2 v2.0.0 h1:y09buUbR+b5aycVFQs/g70pqKVZNBmxwAhO7/IwNM9g=
-github.com/vmihailenco/tagparser/v2 v2.0.0/go.mod h1:Wri+At7QHww0WTrCBeu4J6bNtoV6mEfg5OIWRZA9qds=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=