Go Operator Tutorial: Not able to create Initial Project

[harshvijaythakkar]

I am following Go Operator Tutorial and I am facing following issue

Go Version go version go1.22.0 darwin/arm64

Issue-1:

My local environment is Apple Silicon (darwin/arm64) When I run following command

operator-sdk init --domain example.com --repo github.com/harshvijaythakkar/sample-memcached-operator --plugins=go/v4-alpha

It is giving following error

Error: no plugin could be resolved with key "go/v4-alpha" (plugin version is unstable, there may be an upgrade available: https://kubebuilder.io/migration/plugin/plugins.html)
Usage:
  operator-sdk [flags]

Examples:
The first step is to initialize your project:
    operator-sdk init [--plugins=<PLUGIN KEYS> [--project-version=<PROJECT VERSION>]]

<PLUGIN KEYS> is a comma-separated list of plugin keys from the following table
and <PROJECT VERSION> a supported project version for these plugins.

                                   Plugin keys | Supported project versions
-----------------------------------------------+----------------------------
           ansible.sdk.operatorframework.io/v1 |                          3
              declarative.go.kubebuilder.io/v1 |                       2, 3
       deploy-image.go.kubebuilder.io/v1-alpha |                          3
                          go.kubebuilder.io/v2 |                       2, 3
                          go.kubebuilder.io/v3 |                          3
                          go.kubebuilder.io/v4 |                          3
               grafana.kubebuilder.io/v1-alpha |                          3
              helm.sdk.operatorframework.io/v1 |                          3
 hybrid.helm.sdk.operatorframework.io/v1-alpha |                          3
            quarkus.javaoperatorsdk.io/v1-beta |                          3

For more specific help for the init command of a certain plugins and project version
configuration please run:
    operator-sdk init --help --plugins=<PLUGIN KEYS> [--project-version=<PROJECT VERSION>]

Default plugin keys: "go.kubebuilder.io/v4"
Default project version: "3"


Flags:
  -h, --help                     help for operator-sdk
      --plugins strings          plugin keys to be used for this subcommand execution
      --project-version string   project version (default "3")

FATA[0000] no plugin could be resolved with key "go/v4-alpha" (plugin version is unstable, there may be an upgrade available: https://kubebuilder.io/migration/plugin/plugins.html)

seems like plugin go/v4-alpha is not supported.

When I checked kubebuilder's plugin page I don't see that plugin "go/v4-alpha" instead I see "go/v4" which is default so, I run following command

operator-sdk init --domain example.com --repo github.com/harshvijaythakkar/sample-memcached-operator

My PROJECT file looks something like this

# Code generated by tool. DO NOT EDIT.
# This file is used to track the info used to scaffold your project
# and allow the plugins properly work.
# More info: https://book.kubebuilder.io/reference/project-config.html
domain: example.com
layout:
- go.kubebuilder.io/v4
plugins:
  manifests.sdk.operatorframework.io/v2: {}
  scorecard.sdk.operatorframework.io/v2: {}
projectName: memcached-operator
repo: github.com/harshvijaythakkar/sample-memcached-operator
version: "3"

But now when I run operator-sdk create api --group cache --version v1alpha1 --kind Memcached --resource --controller command it failing with FATA[0005] failed to create API: unable to run post-scaffold tasks of "base.go.kubebuilder.io/v4": exit status 2. The detailed output is as follows

INFO[0000] Writing kustomize manifests for you to edit...
INFO[0000] Writing scaffold for you to edit...
INFO[0000] api/v1alpha1/memcached_types.go
INFO[0000] api/v1alpha1/groupversion_info.go
INFO[0000] internal/controller/suite_test.go
INFO[0000] internal/controller/memcached_controller.go
INFO[0000] internal/controller/memcached_controller_test.go
INFO[0000] Update dependencies:
$ go mod tidy
INFO[0000] Running make:
$ make generate
mkdir -p /Users/thakkarh/Desktop/learn-go/memcached-operator/bin
test -s /Users/thakkarh/Desktop/learn-go/memcached-operator/bin/controller-gen && /Users/thakkarh/Desktop/learn-go/memcached-operator/bin/controller-gen --version | grep -q v0.13.0 || \
	GOBIN=/Users/thakkarh/Desktop/learn-go/memcached-operator/bin go install sigs.k8s.io/controller-tools/cmd/controller-gen@v0.13.0
/Users/thakkarh/Desktop/learn-go/memcached-operator/bin/controller-gen object:headerFile="hack/boilerplate.go.txt" paths="./..."
panic: runtime error: invalid memory address or nil pointer dereference [recovered]
	panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x2 addr=0x0 pc=0x10358cfb0]

goroutine 179 [running]:
go/types.(*Checker).handleBailout(0x14000abc800, 0x1400004bd18)
	/opt/homebrew/Cellar/go/1.22.0/libexec/src/go/types/check.go:367 +0x9c
panic({0x103865a60?, 0x103e00af0?})
	/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/panic.go:770 +0x124
go/types.(*StdSizes).Sizeof(0x0, {0x103930990, 0x103e092e0})
	/opt/homebrew/Cellar/go/1.22.0/libexec/src/go/types/sizes.go:228 +0x320
go/types.(*Config).sizeof(...)
	/opt/homebrew/Cellar/go/1.22.0/libexec/src/go/types/sizes.go:333
go/types.representableConst.func1({0x103930990?, 0x103e092e0?})
	/opt/homebrew/Cellar/go/1.22.0/libexec/src/go/types/const.go:76 +0x9c
go/types.representableConst({0x103936c30, 0x103dd4240}, 0x14000abc800, 0x103e092e0, 0x0)
	/opt/homebrew/Cellar/go/1.22.0/libexec/src/go/types/const.go:92 +0x138
go/types.(*Checker).arrayLength(0x14000abc800, {0x103934f78, 0x140012cb880?})
	/opt/homebrew/Cellar/go/1.22.0/libexec/src/go/types/typexpr.go:510 +0x238
go/types.(*Checker).typInternal(0x14000abc800, {0x103933598, 0x140012e9830}, 0x0)
	/opt/homebrew/Cellar/go/1.22.0/libexec/src/go/types/typexpr.go:299 +0x3bc
go/types.(*Checker).definedType(0x14000abc800, {0x103933598, 0x140012e9830}, 0x103004bac?)
	/opt/homebrew/Cellar/go/1.22.0/libexec/src/go/types/typexpr.go:180 +0x2c
go/types.(*Checker).varType(0x14000abc800, {0x103933598, 0x140012e9830})
	/opt/homebrew/Cellar/go/1.22.0/libexec/src/go/types/typexpr.go:145 +0x2c
go/types.(*Checker).structType(0x14000abc800, 0x140011759b0, 0x140011759b0?)
	/opt/homebrew/Cellar/go/1.22.0/libexec/src/go/types/struct.go:113 +0x128
go/types.(*Checker).typInternal(0x14000abc800, {0x103933508, 0x140012b3398}, 0x1400117f860)
	/opt/homebrew/Cellar/go/1.22.0/libexec/src/go/types/typexpr.go:316 +0xed0
go/types.(*Checker).definedType(0x14000abc800, {0x103933508, 0x140012b3398}, 0x1036a14e8?)
	/opt/homebrew/Cellar/go/1.22.0/libexec/src/go/types/typexpr.go:180 +0x2c
go/types.(*Checker).typeDecl(0x14000abc800, 0x1400117f860, 0x140012ccdc0, 0x0)
	/opt/homebrew/Cellar/go/1.22.0/libexec/src/go/types/decl.go:615 +0x39c
go/types.(*Checker).objDecl(0x14000abc800, {0x10393ba98, 0x1400117f860}, 0x0)
	/opt/homebrew/Cellar/go/1.22.0/libexec/src/go/types/decl.go:197 +0x880
go/types.(*Checker).packageObjects(0x14000abc800)
	/opt/homebrew/Cellar/go/1.22.0/libexec/src/go/types/resolver.go:681 +0x3c0
go/types.(*Checker).checkFiles(0x14000abc800, {0x14000f5c9f0, 0x3, 0x3})
	/opt/homebrew/Cellar/go/1.22.0/libexec/src/go/types/check.go:408 +0x164
go/types.(*Checker).Files(...)
	/opt/homebrew/Cellar/go/1.22.0/libexec/src/go/types/check.go:372
sigs.k8s.io/controller-tools/pkg/loader.(*loader).typeCheck(0x140002d53b0, 0x14000196b60)
	/Users/thakkarh/go/pkg/mod/sigs.k8s.io/controller-tools@v0.13.0/pkg/loader/loader.go:286 +0x2d8
sigs.k8s.io/controller-tools/pkg/loader.(*Package).NeedTypesInfo(0x14000196b60)
	/Users/thakkarh/go/pkg/mod/sigs.k8s.io/controller-tools@v0.13.0/pkg/loader/loader.go:99 +0x44
sigs.k8s.io/controller-tools/pkg/loader.(*TypeChecker).check(0x140002fd1d0, 0x14000196b60)
	/Users/thakkarh/go/pkg/mod/sigs.k8s.io/controller-tools@v0.13.0/pkg/loader/refs.go:268 +0x304
sigs.k8s.io/controller-tools/pkg/loader.(*TypeChecker).check.func1(0x4c?)
	/Users/thakkarh/go/pkg/mod/sigs.k8s.io/controller-tools@v0.13.0/pkg/loader/refs.go:262 +0x58
created by sigs.k8s.io/controller-tools/pkg/loader.(*TypeChecker).check in goroutine 162
	/Users/thakkarh/go/pkg/mod/sigs.k8s.io/controller-tools@v0.13.0/pkg/loader/refs.go:260 +0x230
make: *** [generate] Error 2
Error: failed to create API: unable to run post-scaffold tasks of "base.go.kubebuilder.io/v4": exit status 2
Usage:
  operator-sdk create api [flags]

Examples:
  # Create a frigates API with Group: ship, Version: v1beta1 and Kind: Frigate
  operator-sdk create api --group ship --version v1beta1 --kind Frigate

  # Edit the API Scheme

  nano api/v1beta1/frigate_types.go

  # Edit the Controller
  nano internal/controller/frigate/frigate_controller.go

  # Edit the Controller Test
  nano internal/controller/frigate/frigate_controller_test.go

  # Generate the manifests
  make manifests

  # Install CRDs into the Kubernetes cluster using kubectl apply
  make install

  # Regenerate code and run against the Kubernetes cluster configured by ~/.kube/config
  make run


Flags:
      --controller           if set, generate the controller without prompting the user (default true)
      --force                attempt to create resource even if it already exists
      --group string         resource Group
  -h, --help                 help for api
      --kind string          resource Kind
      --make make generate   if true, run make generate after generating files (default true)
      --namespaced           resource is namespaced (default true)
      --plural string        resource irregular plural form
      --resource             if set, generate the resource without prompting the user (default true)
      --version string       resource Version

Global Flags:
      --plugins strings   plugin keys to be used for this subcommand execution
      --verbose           Enable verbose logging

FATA[0005] failed to create API: unable to run post-scaffold tasks of "base.go.kubebuilder.io/v4": exit status 2

[acornett21]

• Duplicates: quickstart does not work #6681

[harshvijaythakkar]

Adding my response for ref:

#6681 (comment)

Closing This issue.