Running "kubebuilder docs" fails with 0.1.7

[perotinus]

Steps to repro, in an empty directory in $GOPATH/src:

$ kubebuilder init --domain example.com
$ kubebuilder create resource --group example --version v1alpha1 --kind Example --controller=false
$ kubebuilder docs

Failure:

$ kubebuilder docs
2018/05/01 14:46:37 docker run -v $GOPATH/src/example.com/example:/host/repo -e DOMAIN=example.com -e DIR=src/example.com/example -e OUTPUT=docs/reference gcr.io/kubebuilder/gendocs
+ export D=src/example.com/example/docs/reference
+ D=src/example.com/example/docs/reference
+ mkdir -p src/example.com/example/docs/reference
+ cp -r /host/repo/pkg src/example.com/example/pkg
+ '[' -d /host/repo/docs/reference ']'
+ cp -r /host/repo/docs/reference/config.yaml /host/repo/docs/reference/examples /host/repo/docs/reference/openapi-spec /host/repo/docs/reference/static_includes src/example.com/exampledocs/reference
+ '[' '!' -d src/example.com/example/boilerplate.go.txt ']'
+ touch src/example.com/example/boilerplate.go.txt
+ cd src/example.com/example
+ apiserver-boot init repo --domain example.com
2018/05/01 21:46:38 installing vendor/ directory.  To disable this, run with --install-deps=false.
+ apiserver-boot build generated clean
+ apiserver-boot build generated
/usr/local/apiserver-builder/bin/apiregister-gen --input-dirs src/example.com/exampler/pkg/apis/... --input-dirs src/example.com/example/pkg/controller/...
2018/05/01 21:46:40 failed to run apiregister-gen panic: Could not find string matching // +domain=.+ in apis/doc.go
 
goroutine 1 [running]:
github.com/kubernetes-incubator/apiserver-builder/cmd/apiregister-gen/generators.(*APIsBuilder).ParseDomain(0xc427e3a7e0)
        /Users/pwittroc/apiserver-builder/src/github.com/kubernetes-incubator/apiserver-builder/cmd/apiregister-gen/generators/parser.go:566 +0x12d
github.com/kubernetes-incubator/apiserver-builder/cmd/apiregister-gen/generators.NewAPIsBuilder(0xc427e13f20, 0xc42001a780, 0x4cba11)
        /Users/pwittroc/apiserver-builder/src/github.com/kubernetes-incubator/apiserver-builder/cmd/apiregister-gen/generators/parser.go:186 +0x81
github.com/kubernetes-incubator/apiserver-builder/cmd/apiregister-gen/generators.(*Gen).Packages(0xc42000a800, 0xc427e13f20, 0xc42001a780, 0x6000104, 0x0, 0xffffffffffffffff)
        /Users/pwittroc/apiserver-builder/src/github.com/kubernetes-incubator/apiserver-builder/cmd/apiregister-gen/generators/package.go:89 +0xa1
github.com/kubernetes-incubator/apiserver-builder/cmd/apiregister-gen/generators.(*Gen).Packages-fm(0xc427e13f20, 0xc42001a780, 0x765a6e, 0x6, 0xc427e13f20)
        /Users/pwittroc/apiserver-builder/src/github.com/kubernetes-incubator/apiserver-builder/cmd/apiregister-gen/generators/package.go:45 +0x3e
github.com/kubernetes-incubator/apiserver-builder/cmd/vendor/k8s.io/gengo/args.(*GeneratorArgs).Execute(0xc42001a780, 0xc4200f83f0, 0x765a6e, 0x6, 0xc426711ee8, 0x20, 0x718e60)
        /Users/pwittroc/apiserver-builder/src/github.com/kubernetes-incubator/apiserver-builder/cmd/vendor/k8s.io/gengo/args/args.go:165 +0x1e6
github.com/kubernetes-incubator/apiserver-builder/cmd/apiregister-gen/generators.(*Gen).Execute(0xc42000a800, 0xc42001a780, 0x0, 0x0)
        /Users/pwittroc/apiserver-builder/src/github.com/kubernetes-incubator/apiserver-builder/cmd/apiregister-gen/generators/package.go:45 +0x85
main.main()
        /Users/pwittroc/apiserver-builder/src/github.com/kubernetes-incubator/apiserver-builder/cmd/apiregister-gen/main.go:47 +0x136
 exit status 2
2018/05/01 14:46:41 error: exit status 1

[pwittrock]

Looks like a regression. I have started to dig into this. Would be great if there was a quick fix while we come up with a more sustainable approach to generating the docs

[Liujingfang1]

I looked into the failure. The regression is due to the tag change I added in #66.
The resource file with tag +kubebuilder:resource is not recognized by apiregister-gen.
A quick fix would be to add support for the kubebuilder tag prefix in apiserver-builder as well.

[droot]

Just submitted a PR with the fix.
kubernetes-sigs/apiserver-builder-alpha#239

[pwittrock]

This should be fixed.