创建同步函数失败

[mzychaco]

Description
按照官网指引安装好openfunction，过程符合官网描述，没什么问题，然后我尝试创建一个简单的同步函数，yaml如下：

apiVersion: core.openfunction.io/v1beta1
kind: Function
metadata:
  name: function-sample
spec:
  image: "<本地仓库的镜像地址>"

然后执行kubectl apply -f xxx.yaml
但报错返回：

Error from server (InternalError): error when creating "test-go-func.yaml": Internal error occurred: failed calling webhook "mfunctions.of.io": failed to call webhook: Post "https://openfunction-webhook-service.openfunction.svc:443/mutate-core-openfunction-io-v1beta2-function?timeout=10s": EOF

请问该如何解决？

Environmental
Tell us what your cluster environment is like, e.g.

• Operating System Information：Linux version 4.19.0-amd64-desktop
• kubernetes version： 1.27.3
• minikube： 1.31.0
• OpenFunction version: v1.1.x
• Versions of dependent components (e.g. dapr, keda, shipwright, knative)

Expected behavior
Tell us what should happen.

Actual behavior
Tell us what happens instead. Provide a log message if relevant.

To Reproduce
Steps to reproduce the behavior:

1. '..'
2. '...'
3. '....'
4. See error

Screenshots
If applicable, add screenshots to help explain your problem.

Additional context
我尝试查看openfunction- controller- manager的日志：

http: panic serving 10.244.0.1:32167: runtime error: invalid memory address or nil pointer dereference
goroutine 10566 [running]:
net/http.(*conn).serve.func1()
        /usr/local/go/src/net/http/server.go:1825 +0xbf
panic({0x160c7a0, 0x25e6e00})
        /usr/local/go/src/runtime/panic.go:844 +0x258
github.com/openfunction/apis/core/v1beta2.(*Function).Default(0xc000475880)
        /workspace/apis/core/v1beta2/function_webhook.go:104 +0x145
sigs.k8s.io/controller-runtime/pkg/webhook/admission.(*mutatingHandler).Handle(_, {_, _}, {{{0xc000740c30, 0x24}, {{0xc000d4aa80, 0x14}, {0xc000d19510, 0x7}, {0xc000d19518, ...}}, ...}})
        /go/pkg/mod/sigs.k8s.io/controller-runtime@v0.11.2/pkg/webhook/admission/defaulter.go:66 +0x1f9
sigs.k8s.io/controller-runtime/pkg/webhook/admission.(*Webhook).Handle(_, {_, _}, {{{0xc000740c30, 0x24}, {{0xc000d4aa80, 0x14}, {0xc000d19510, 0x7}, {0xc000d19518, ...}}, ...}})
        /go/pkg/mod/sigs.k8s.io/controller-runtime@v0.11.2/pkg/webhook/admission/webhook.go:146 +0xa2
sigs.k8s.io/controller-runtime/pkg/webhook/admission.(*Webhook).ServeHTTP(0xc0004696c0, {0x7ff761624ce0?, 0xc000c1f5e0}, 0xc000bb8d00)
        /go/pkg/mod/sigs.k8s.io/controller-runtime@v0.11.2/pkg/webhook/admission/http.go:99 +0xe90
github.com/prometheus/client_golang/prometheus/promhttp.InstrumentHandlerInFlight.func1({0x7ff761624ce0, 0xc000c1f5e0}, 0x1a5a900?)
        /go/pkg/mod/github.com/prometheus/client_golang@v1.14.0/prometheus/promhttp/instrument_server.go:60 +0xd4
net/http.HandlerFunc.ServeHTTP(0x1a5a978?, {0x7ff761624ce0?, 0xc000c1f5e0?}, 0x756040?)
        /usr/local/go/src/net/http/server.go:2084 +0x2f
github.com/prometheus/client_golang/prometheus/promhttp.InstrumentHandlerCounter.func1({0x1a5a978?, 0xc0005a8ee0?}, 0xc000bb8d00)
        /go/pkg/mod/github.com/prometheus/client_golang@v1.14.0/prometheus/promhttp/instrument_server.go:146 +0xb8
net/http.HandlerFunc.ServeHTTP(0x74d8a8?, {0x1a5a978?, 0xc0005a8ee0?}, 0xc000bd2b81?)
        /usr/local/go/src/net/http/server.go:2084 +0x2f
github.com/prometheus/client_golang/prometheus/promhttp.InstrumentHandlerDuration.func2({0x1a5a978, 0xc0005a8ee0}, 0xc000bb8d00)
        /go/pkg/mod/github.com/prometheus/client_golang@v1.14.0/prometheus/promhttp/instrument_server.go:108 +0xbf
net/http.HandlerFunc.ServeHTTP(0x282dc7db332?, {0x1a5a978?, 0xc0005a8ee0?}, 0xc000413f90?)
        /usr/local/go/src/net/http/server.go:2084 +0x2f
net/http.(*ServeMux).ServeHTTP(0xc000bbe673?, {0x1a5a978, 0xc0005a8ee0}, 0xc000bb8d00)
        /usr/local/go/src/net/http/server.go:2462 +0x149
net/http.serverHandler.ServeHTTP({0x1a4df40?}, {0x1a5a978, 0xc0005a8ee0}, 0xc000bb8d00)
        /usr/local/go/src/net/http/server.go:2916 +0x43b
net/http.(*conn).serve(0xc000879a40, {0x1a5b718, 0xc000495770})
        /usr/local/go/src/net/http/server.go:1966 +0x5d7
created by net/http.(*Server).Serve
        /usr/local/go/src/net/http/server.go:3071 +0x4db

[vfarcic]

Experiencing the same issue.

[benjaminhuo]

按照官网指引安装好openfunction，过程符合官网描述，没什么问题，然后我尝试创建一个简单的同步函数，yaml如下：

Following which doc? Can you give the entire yaml ?

Have you tried examples here？
https://openfunction.dev/docs/getting-started/quickstarts/sync-functions/

[mzychaco]

The problem has been resolved. The YAML I was using was incomplete; the official documentation provides only partial content. To make it work, I need to use the complete function definition YAML.

[uestczz]

@benjaminhuo I meet this too. my system is Ubuntu 22.04 LTS. k8s v1.22.2. I use helm to install openfunction. I use the hello word yaml.

apiVersion: core.openfunction.io/v1beta2
kind: Function
metadata:
  name: function-sample
spec:
  version: "v2.0.0"
  image: "openfunctiondev/sample-go-func:v1"
  imageCredentials:
    name: push-secret
  build:
    builder: openfunction/builder-go:latest
    env:
      FUNC_NAME: "HelloWorld"
      FUNC_CLEAR_SOURCE: "true"
      # # Use FUNC_GOPROXY to set the goproxy if failed to fetch go modules
      # FUNC_GOPROXY: "https://goproxy.cn"
    srcRepo:
      url: "https://github.com/OpenFunction/samples.git"
      sourceSubPath: "functions/knative/hello-world-go"
      revision: "main"
  serving:
    template:
      containers:
        - name: function # DO NOT change this
          imagePullPolicy: IfNotPresent
    triggers:
      http:
        port: 8080

this may not happened, when I use v1.26.0 k8s.