Add support for go 1.22

[mneverov]

What broke? What's expected?

When using go v1.22 kubebuilder create api results in NPE.
Related to kubernetes-sigs/controller-tools#880.

Reproducing this issue

Steps to reproduce:
0. Install go v1.22

$ kubebuilder init
INFO[0000] Writing kustomize manifests for you to edit...
INFO[0000] Writing scaffold for you to edit...
INFO[0000] Get controller runtime:
$ go get sigs.k8s.io/controller-runtime@v0.16.0
INFO[0000] Update dependencies:
$ go mod tidy
Next: define a resource with:
$ kubebuilder create api

$ kubebuilder create api --version v1 --kind Webhook
INFO[0000] Create Resource [y/n]
y
INFO[0001] Create Controller [y/n]
y
INFO[0001] Writing kustomize manifests for you to edit...
INFO[0001] Writing scaffold for you to edit...
INFO[0001] api/v1/webhook_types.go
INFO[0001] api/v1/groupversion_info.go
INFO[0001] internal/controller/suite_test.go
INFO[0001] internal/controller/webhook_controller.go
INFO[0001] Update dependencies:
$ go mod tidy
INFO[0001] Running make:
$ make generate
mkdir -p /home/mneverov/go/src/github.com/mneverov/testkubebuilder/bin
test -s /home/mneverov/go/src/github.com/mneverov/testkubebuilder/bin/controller-gen && /home/mneverov/go/src/github.com/mneverov/testkubebuilder/bin/controller-gen --version | grep -q v0.13.0 || \
GOBIN=/home/mneverov/go/src/github.com/mneverov/testkubebuilder/bin go install sigs.k8s.io/controller-tools/cmd/controller-gen@v0.13.0
/home/mneverov/go/src/github.com/mneverov/testkubebuilder/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=0x1 addr=0x0 pc=0xa0e55e]

goroutine 179 [running]:
go/types.(*Checker).handleBailout(0xc00199c000, 0xc001211d40)
        /usr/local/go/src/go/types/check.go:367 +0x88
panic({0xbc8860?, 0x12b5880?})
        /usr/local/go/src/runtime/panic.go:770 +0x132
go/types.(*StdSizes).Sizeof(0x0, {0xdc4c18, 0x12be040})
        /usr/local/go/src/go/types/sizes.go:228 +0x31e
go/types.(*Config).sizeof(...)
        /usr/local/go/src/go/types/sizes.go:333
go/types.representableConst.func1({0xdc4c18?, 0x12be040?})
        /usr/local/go/src/go/types/const.go:76 +0x9e
go/types.representableConst({0xdcaff0, 0x1288f60}, 0xc00199c000, 0x12be040, 0x0)
        /usr/local/go/src/go/types/const.go:92 +0x192
go/types.(*Checker).arrayLength(0xc00199c000, {0xdc92a0, 0xc001636ec0?})
        /usr/local/go/src/go/types/typexpr.go:510 +0x2d3
go/types.(*Checker).typInternal(0xc00199c000, {0xdc78c0, 0xc001658180}, 0x0)
        /usr/local/go/src/go/types/typexpr.go:299 +0x49d
go/types.(*Checker).definedType(0xc00199c000, {0xdc78c0, 0xc001658180}, 0xc001211328?)
        /usr/local/go/src/go/types/typexpr.go:180 +0x37
go/types.(*Checker).varType(0xc00199c000, {0xdc78c0, 0xc001658180})
        /usr/local/go/src/go/types/typexpr.go:145 +0x25
go/types.(*Checker).structType(0xc00199c000, 0xc0013a24b0, 0xc0013a24b0?)
        /usr/local/go/src/go/types/struct.go:113 +0x19f
go/types.(*Checker).typInternal(0xc00199c000, {0xdc7830, 0xc001626f00}, 0xc000842550)
        /usr/local/go/src/go/types/typexpr.go:316 +0x1345
go/types.(*Checker).definedType(0xc00199c000, {0xdc7830, 0xc001626f00}, 0xc92787?)
        /usr/local/go/src/go/types/typexpr.go:180 +0x37
go/types.(*Checker).typeDecl(0xc00199c000, 0xc000842550, 0xc001634c80, 0x0)
        /usr/local/go/src/go/types/decl.go:615 +0x44d
go/types.(*Checker).objDecl(0xc00199c000, {0xdd04b8, 0xc000842550}, 0x0)
        /usr/local/go/src/go/types/decl.go:197 +0xa7f
go/types.(*Checker).packageObjects(0xc00199c000)
        /usr/local/go/src/go/types/resolver.go:681 +0x425
go/types.(*Checker).checkFiles(0xc00199c000, {0xc0012d58f0, 0x3, 0x3})
        /usr/local/go/src/go/types/check.go:408 +0x1a5
go/types.(*Checker).Files(...)
        /usr/local/go/src/go/types/check.go:372
sigs.k8s.io/controller-tools/pkg/loader.(*loader).typeCheck(0xc0002b1380, 0xc0006f5c60)
        /home/mneverov/go/pkg/mod/sigs.k8s.io/controller-tools@v0.13.0/pkg/loader/loader.go:286 +0x36a
sigs.k8s.io/controller-tools/pkg/loader.(*Package).NeedTypesInfo(0xc0006f5c60)
        /home/mneverov/go/pkg/mod/sigs.k8s.io/controller-tools@v0.13.0/pkg/loader/loader.go:99 +0x39
sigs.k8s.io/controller-tools/pkg/loader.(*TypeChecker).check(0xc0008ff770, 0xc0006f5c60)
        /home/mneverov/go/pkg/mod/sigs.k8s.io/controller-tools@v0.13.0/pkg/loader/refs.go:268 +0x2b7
sigs.k8s.io/controller-tools/pkg/loader.(*TypeChecker).check.func1(0x4d?)
        /home/mneverov/go/pkg/mod/sigs.k8s.io/controller-tools@v0.13.0/pkg/loader/refs.go:262 +0x53
created by sigs.k8s.io/controller-tools/pkg/loader.(*TypeChecker).check in goroutine 163
        /home/mneverov/go/pkg/mod/sigs.k8s.io/controller-tools@v0.13.0/pkg/loader/refs.go:260 +0x1c5
make: *** [Makefile:53: generate] Error 2
Error: failed to create API: unable to run post-scaffold tasks of "base.go.kubebuilder.io/v4": exit status 2
Usage:
  kubebuilder create api [flags]

Examples:
  # Create a frigates API with Group: ship, Version: v1beta1 and Kind: Frigate
  kubebuilder 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

FATA[0002] failed to create API: unable to run post-scaffold tasks of "base.go.kubebuilder.io/v4": exit status 2

KubeBuilder (CLI) Version

Version: main.version{KubeBuilderVersion:"3.12.0", KubernetesVendor:"1.27.1", GitCommit:"b48f95cd5384eadcdfd02a47a02910f72ddc7ea8", BuildDate:"2023-09-06T06:04:11Z", GoOs:"linux", GoArch:"amd64"}

PROJECT version

3

Plugin versions

No response

Other versions

No response

Extra Labels

No response

[camilamacedo86]

Hi @mneverov

Thank you for raising it.
We need to push a bump for the new release of the controller-tools.
However, we should just bump go/v4. Could you please see the comments in the review of this PR and help us to address them? So, that we can have your contribution merged asap.

However, to support go 1.22 we need to create another PR to bump controller-runtime using go/v2 and properly bump the go/v4 scaffold to use go 1.22 as well as all places where we are using go 1.21 currently.

The current release does not support go 1.22.
So, it is a RFE not a bug.

[camilamacedo86]

Hi @mneverov

Sorry, now I checked this one better. Following are all the details.

• See that the latest release has the bump of controller-tools already: https://github.com/kubernetes-sigs/kubebuilder/blob/v3.14.0/testdata/project-v4/Makefile#L167
• We will NOT bump it for the legacy layout go/v3 because this one has been deprecated for a long period and will be removed asap, and we will do a MAJOR release see: ⚠️ Upcoming Major Version Release for Kubebuilder with the next k8s 1.29 release - Action Required #3622

Now, regarding support, we are going to go 1.22.

It is NOT supported yet by Kubebuilder.
Note that we support the versions scaffolded by default with the tool.
You can change as you please, but we cannot ensure that things are still working since the changes will result in combinations not tested by us. See from the doc: https://book.kubebuilder.io/quick-start#versions-and-supportability

What we need to do to support go 1.22

• Wait for controller-runtime and controller-tools releases using go 1.22
• Then, change the go plugin to scaffold go 1.22 and use it
• Mainly replace all places across the project that have 1.21 with 1.22

Your help is very welcome.

Cheers,

[Shuimo03]

can assignee to me?

[camilamacedo86]

Hi @Shuimo03

We can only work on this when controller runtime and controller tools are using 1.22 and provide releases within.
That is still not the case:

• https://github.com/kubernetes-sigs/controller-runtime/blob/main/go.mod#L3
• https://github.com/kubernetes-sigs/controller-tools/blob/master/go.mod#L3

You can work on the above projects to see if we can help them move first, and then we will be in the place to update Kubebuidler.

Also, feel free to contribute as you see fit.
Your help is more than welcome ;-)

[Shuimo03]

ok

[camilamacedo86]

We need be able to remove go/v2 and go/v3 plugins to move forward within
The old versions will not work well after the bump so this one is blocker for the MAJOR release #3622

[yaron2]

Hi @Shuimo03

We can only work on this when controller runtime and controller tools are using 1.22 and provide releases within. That is still not the case:

• https://github.com/kubernetes-sigs/controller-runtime/blob/main/go.mod#L3
• https://github.com/kubernetes-sigs/controller-tools/blob/master/go.mod#L3

You can work on the above projects to see if we can help them move first, and then we will be in the place to update Kubebuidler.

Also, feel free to contribute as you see fit. Your help is more than welcome ;-)

Since this is now the case that both are using Go 1.22.0, can we please bump a new version for Go 1.22? I'm a Dapr maintainer and our performance tests are broken due to this issue.

[camilamacedo86]

Hi @Shuimo03,

To move forward and support go 1.22 we need to:

-> Get merged: #3899
-> To do a new release 3x
-> Then, we can remove the deprecated plugins to do a 4x #3622 (PRs are done already)
-> Then we can do the bumps and new release.

If you want to help out, could you please help with the review of: #3899

c/c @varshaprasad96

[camilamacedo86]

Hi @Shuimo03,

we are unblocked now.
Just give to us a couple of days and we will be releasing 4x with support for go 1.22 and k8s 1.30

[mikeee]

I think you've been tagging the wrong person, thanks for the prompt updates though 🙂

[Shuimo03]

@camilamacedo86 @yaron2 hi, Are you looking for me？