K8s: update hack codegen script (#81216)

go.mod

@@ -111,7 +111,7 @@ require (
 	golang.org/x/oauth2 v0.15.0 // @grafana/grafana-authnz-team
 	golang.org/x/sync v0.5.0 // @grafana/alerting-squad-backend
 	golang.org/x/time v0.5.0 // @grafana/backend-platform
-	golang.org/x/tools v0.16.0 // @grafana/grafana-as-code
+	golang.org/x/tools v0.16.1 // @grafana/grafana-as-code
 	gonum.org/v1/gonum v0.12.0 // @grafana/observability-metrics
 	google.golang.org/api v0.149.0 // @grafana/backend-platform
 	google.golang.org/grpc v1.60.1 // @grafana/plugins-platform-backend
@@ -484,6 +484,8 @@ require (
 
 require k8s.io/apiextensions-apiserver v0.29.0 // @grafana/grafana-app-platform-squad
 
+require k8s.io/code-generator v0.29.1 // @grafana/grafana-app-platform-squad
+
 // Use fork of crewjam/saml with fixes for some issues until changes get merged into upstream
 replace github.com/crewjam/saml => github.com/grafana/saml v0.4.15-0.20231025143828-a6c0e9b86a4c
 

go.sum

@@ -3728,8 +3728,8 @@ golang.org/x/tools v0.4.0/go.mod h1:UE5sM2OK9E/d67R0ANs2xJizIymRP5gJU295PvKXxjQ=
 golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
 golang.org/x/tools v0.7.0/go.mod h1:4pg6aUX35JBAogB10C9AtvVL+qowtN4pT3CGSQex14s=
 golang.org/x/tools v0.13.0/go.mod h1:HvlwmtVNQAhOuCjW7xxvovg8wbNq7LwfXh/k7wXUl58=
-golang.org/x/tools v0.16.0 h1:GO788SKMRunPIBCXiQyo2AaexLstOrVhuAL5YwsckQM=
-golang.org/x/tools v0.16.0/go.mod h1:kYVVN6I1mBNoB1OX+noeBjbRk4IUEPa7JJ+TJMEooJ0=
+golang.org/x/tools v0.16.1 h1:TLyB3WofjdOEepBHAU20JdNC1Zbg87elYofWYAY5oZA=
+golang.org/x/tools v0.16.1/go.mod h1:kYVVN6I1mBNoB1OX+noeBjbRk4IUEPa7JJ+TJMEooJ0=
 golang.org/x/xerrors v0.0.0-20190410155217-1f06c39b4373/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -4164,6 +4164,8 @@ k8s.io/apiserver v0.29.0/go.mod h1:31n78PsRKPmfpee7/l9NYEv67u6hOL6AfcE761HapDM=
 k8s.io/client-go v0.26.2/go.mod h1:u5EjOuSyBa09yqqyY7m3abZeovO/7D/WehVVlZ2qcqU=
 k8s.io/client-go v0.29.0 h1:KmlDtFcrdUzOYrBhXHgKw5ycWzc3ryPX5mQe0SkG3y8=
 k8s.io/client-go v0.29.0/go.mod h1:yLkXH4HKMAywcrD82KMSmfYg2DlE8mepPR4JGSo5n38=
+k8s.io/code-generator v0.29.1 h1:8ba8BdtSmAVHgAMpzThb/fuyQeTRtN7NtN7VjMcDLew=
+k8s.io/code-generator v0.29.1/go.mod h1:FwFi3C9jCrmbPjekhaCYcYG1n07CYiW1+PAPCockaos=
 k8s.io/component-base v0.29.0 h1:T7rjd5wvLnPBV1vC4zWd/iWRbV8Mdxs+nGaoaFzGw3s=
 k8s.io/component-base v0.29.0/go.mod h1:sADonFTQ9Zc9yFLghpDpmNXEdHyQmFIGbiuZbqAXQ1M=
 k8s.io/gengo v0.0.0-20210813121822-485abfe95c7c/go.mod h1:FiNAH4ZV3gBg2Kwh89tzAEV2be7d5xI0vBa/VySYy3E=

hack/README.md

@@ -14,14 +14,18 @@ total 0
 lrwxr-xr-x  1 ryan  staff  37 Oct  5 09:34 grafana -> /Users/ryan/workspace/grafana/grafana
 ```
 
-You can clone k8s [code-generator](https://github.com/kubernetes/code-generator) here and use `CODEGEN_PKG=<CODE-GENERATOR-GIT-ROOT>` when running the `update-codegen.sh` script.
+The current workflow is to run the following:
 
-The current workflow (sorry!) is to:
+```shell
+# ensure k8s.io/code-generator pkg is up to date
+go mod download
 
-1. update the script to point to the group+version you want
-2. run the `update-codegen.sh` script. This will produce a bunch of new files
-3. move `pkg/generated/openapi/zz_generated.openapi.go` to `pkg/apis/{group/version}/zz_generated.openapi.go`.
-4. edit the package name so it is {version} and remove the boilerplate k8s kinds
-5. `rm -rf pkg/generated` -- we are not yet using most of the generated client stuff
+# the happy path
+./hack/update-codegen.sh
 
-Once we are more comfortable with the outputs and process, we will build these steps into a more standard codegen pattern, but until then... happy hacking!
+# if wanting to agree to a change which introduces different openapi violations, run with the bool set to true
+UPDATE_API_KNOWN_VIOLATIONS=true ./hack/update-codegen.sh
+```
+
+Note that the script deletes existing openapi go code and regenerates in place so that you will temporarily see
+deleted files in your `git status`. After a successful run, you should see them restored.

hack/externalTools.go

@@ -0,0 +1,7 @@
+package hack
+
+import (
+	"k8s.io/code-generator/pkg/util"
+)
+
+var _ = util.CurrentPackage

hack/openapi-codegen.sh

@@ -0,0 +1,161 @@
+# SPDX-License-Identifier: AGPL-3.0-only
+# Provenance-includes-location: https://github.com/kubernetes/code-generator/blob/master/kube_codegen.sh
+# Provenance-includes-license: Apache-2.0
+# Provenance-includes-copyright: The Kubernetes Authors.
+
+## NOTE: The following is a fork of the original gen_openapi helper in k8s.io/code-generator
+## It allows us to generate separate openapi packages per api group.
+
+# Generate openapi code
+#
+# Args:
+#
+#   --input-pkg-single <string>
+#     The root directory of a single grafana API Group.
+#
+#   --output-base <string>
+#     The root directory under which to emit code.  The concatenation of
+#     <output-base> + <input-pkg-single> must be valid.
+#
+#   --report-filename <string = "/dev/null">
+#     The filename of the API violations report in the input pkg directory.
+#
+#   --update-report
+#     If specified, update the report file in place, rather than diffing it.
+#
+#   --boilerplate <string = path_to_kube_codegen_boilerplate>
+#     An optional override for the header file to insert into generated files.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+KUBE_CODEGEN_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd -P)"
+
+source "${CODEGEN_PKG}/kube_codegen.sh"
+#
+function grafana::codegen::gen_openapi() {
+    local in_pkg_single=""
+    local out_base=""
+    local report="/dev/null"
+    local update_report=""
+    local boilerplate="${KUBE_CODEGEN_ROOT}/hack/boilerplate.go.txt"
+    local v="${KUBE_VERBOSE:-0}"
+
+    while [ "$#" -gt 0 ]; do
+        case "$1" in
+            "--input-pkg-single")
+                in_pkg_single="$2"
+                shift 2
+                ;;
+            "--output-base")
+                out_base="$2"
+                shift 2
+                ;;
+            "--report-filename")
+                report="$2"
+                shift 2
+                ;;
+            "--update-report")
+                update_report="true"
+                shift
+                ;;
+            "--boilerplate")
+                boilerplate="$2"
+                shift 2
+                ;;
+            *)
+                echo "unknown argument: $1" >&2
+                return 1
+                ;;
+        esac
+    done
+
+    if [ -z "${in_pkg_single}" ]; then
+        echo "--input-pkg-single is required" >&2
+        return 1
+    fi
+
+    if [ -z "${report}" ]; then
+        echo "--report-filename is required" >&2
+        return 1
+    fi
+
+    if [ -z "${out_base}" ]; then
+        echo "--output-base is required" >&2
+        return 1
+    fi
+
+    (
+        # To support running this from anywhere, first cd into this directory,
+        # and then install with forced module mode on and fully qualified name.
+        cd "${KUBE_CODEGEN_ROOT}"
+        BINS=(
+            openapi-gen
+        )
+        # shellcheck disable=2046 # printf word-splitting is intentional
+        GO111MODULE=on go install $(printf "k8s.io/code-generator/cmd/%s " "${BINS[@]}")
+    )
+    # Go installs in $GOBIN if defined, and $GOPATH/bin otherwise
+    gobin="${GOBIN:-$(go env GOPATH)/bin}"
+
+    # These tools all assume out-dir == in-dir.
+    root="${out_base}/${in_pkg_single}"
+    mkdir -p "${root}"
+    root="$(cd "${root}" && pwd -P)"
+
+    local input_pkgs=()
+    while read -r dir; do
+        echo ${dir}
+        pkg="$(cd "${dir}" && GO111MODULE=on go list -find .)"
+        input_pkgs+=("${pkg}")
+    done < <(
+        ( kube::codegen::internal::git_grep -l --null \
+            -e '+k8s:openapi-gen=' \
+            ":(glob)${root}"/'**/*.go' \
+            || true \
+        ) | while read -r -d $'\0' F; do dirname "${F}"; done \
+          | LC_ALL=C sort -u
+    )
+
+    if [ "${#input_pkgs[@]}" != 0 ]; then
+        echo "Generating openapi code for ${#input_pkgs[@]} targets"
+
+        kube::codegen::internal::git_find -z \
+           ":(glob)${root}"/'**/zz_generated.openapi.go' \
+           | xargs -0 rm -f
+
+        local inputs=()
+        for arg in "${input_pkgs[@]}"; do
+            inputs+=("--input-dirs" "$arg")
+        done
+
+        local new_report
+        new_report="${root}/${report}.tmp"
+        if [ -n "${update_report}" ]; then
+            new_report="${root}/${report}"
+        fi
+
+        "${gobin}/openapi-gen" \
+            -v "${v}" \
+            -O zz_generated.openapi \
+            --go-header-file "${boilerplate}" \
+            --output-base "${out_base}" \
+            --output-package "${in_pkg_single}" \
+            --report-filename "${new_report}" \
+            "${inputs[@]}"
+    fi
+
+    touch "${root}/${report}" # in case it doesn't exist yet
+    if ! diff -u "${root}/${report}" "${new_report}"; then
+        echo -e "ERROR:"
+        echo -e "\tAPI rule check failed for ${root}/${report}: new reported violations"
+        echo -e "\tPlease read api/api-rules/README.md"
+        return 1
+    fi
+
+    # if all goes well, remove the temporary reports
+    if [ -z "${update_report}" ]; then
+      rm -f "${new_report}"
+    fi
+}

hack/update-codegen.sh

@@ -1,45 +1,56 @@
 #!/usr/bin/env bash
 
-# Copyright 2017 The Kubernetes Authors.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# SPDX-License-Identifier: AGPL-3.0-only
+# Provenance-includes-location: https://github.com/kubernetes/sample-apiserver/blob/master/hack/update-codegen.sh
+# Provenance-includes-license: Apache-2.0
+# Provenance-includes-copyright: The Kubernetes Authors.
 
 set -o errexit
 set -o nounset
 set -o pipefail
 
 SCRIPT_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
-CODEGEN_PKG=${CODEGEN_PKG:-$(cd "${SCRIPT_ROOT}"; ls -d -1 ./vendor/k8s.io/code-generator 2>/dev/null || echo $GOPATH/pkg/mod/k8s.io/code-generator@v0.27.1)}
+CODEGEN_PKG=${CODEGEN_PKG:-$(cd "${SCRIPT_ROOT}"; ls -d -1 ./vendor/k8s.io/code-generator 2>/dev/null || echo $GOPATH/pkg/mod/k8s.io/code-generator@v0.29.1)}
 
 OUTDIR="${HOME}/go/src"
+OPENAPI_VIOLATION_EXCEPTIONS_FILENAME="zz_generated.openapi_violation_exceptions.list"
 
-echo $OUTDIR
+source "${CODEGEN_PKG}/kube_codegen.sh"
+source "$(dirname "${BASH_SOURCE[0]}")/openapi-codegen.sh"
 
-CLIENTSET_NAME_VERSIONED=clientset \
-CLIENTSET_PKG_NAME=clientset \
-"${CODEGEN_PKG}/generate-groups.sh" "all" \
-  github.com/grafana/grafana/pkg/generated \
-  github.com/grafana/grafana/pkg/apis \
-  "datasource:v0alpha1" \
-  --output-base "${OUTDIR}" \
-  --go-header-file "${SCRIPT_ROOT}/hack/boilerplate.go.txt"
+kube::codegen::gen_helpers \
+    --input-pkg-root github.com/grafana/grafana/pkg/apis \
+    --output-base "${OUTDIR}" \
+    --boilerplate "${SCRIPT_ROOT}/hack/boilerplate.go.txt"
 
-CLIENTSET_NAME_VERSIONED=clientset \
-CLIENTSET_PKG_NAME=clientset \
-"${CODEGEN_PKG}/generate-internal-groups.sh" "deepcopy,defaulter,conversion,openapi"  \
-  github.com/grafana/grafana/pkg/generated \
-  github.com/grafana/grafana/pkg/apis \
-  github.com/grafana/grafana/pkg/apis \
-  "datasource:v0alpha1" \
-  --output-base "${OUTDIR}" \
-  --go-header-file "${SCRIPT_ROOT}/hack/boilerplate.go.txt"
+
+if [[ "${UPDATE_API_KNOWN_VIOLATIONS:-}" == "true" ]]; then
+    update_report="--update-report"
+fi
+
+for api_pkg in $(ls ./pkg/apis); do
+  for pkg_version in $(ls ./pkg/apis/${api_pkg}); do
+    echo "Generating openapi package for ${api_pkg}, version=${pkg_version} ..."
+    grafana::codegen::gen_openapi \
+      --input-pkg-single github.com/grafana/grafana/pkg/apis/${api_pkg}/${pkg_version} \
+      --output-base "${OUTDIR}" \
+      --report-filename "${OPENAPI_VIOLATION_EXCEPTIONS_FILENAME}" \
+      ${update_report:+"${update_report}"} \
+      --boilerplate "${SCRIPT_ROOT}/hack/boilerplate.go.txt"
+  done
+
+  violations_file="${OUTDIR}/github.com/grafana/grafana/pkg/apis/${api_pkg}/${pkg_version}/${OPENAPI_VIOLATION_EXCEPTIONS_FILENAME}"
+  # delete violation exceptions file, if empty
+  if ! grep -q . "${violations_file}"; then
+      echo "Deleting ${violations_file} since it is empty"
+      rm ${violations_file}
+  fi
+done
+
+kube::codegen::gen_client \
+    --with-watch \
+    --with-applyconfig \
+    --input-pkg-root github.com/grafana/grafana/pkg/apis \
+    --output-pkg-root github.com/grafana/grafana/pkg/generated \
+    --output-base "${OUTDIR}" \
+    --boilerplate "${SCRIPT_ROOT}/hack/boilerplate.go.txt"

pkg/apis/common/v0alpha1/doc.go

@@ -1,4 +1,5 @@
 // +k8s:openapi-gen=true
+// +k8s:defaulter-gen=TypeMeta
 // +groupName=common.grafana.app
 
 package v0alpha1 // import "github.com/grafana/grafana/pkg/apis/common/v0alpha1"

pkg/apis/common/v0alpha1/zz_generated.openapi_violation_exceptions.list

@@ -0,0 +1 @@
+API rule violation: names_match,github.com/grafana/grafana/pkg/apis/common/v0alpha1,Unstructured,Object

pkg/apis/dashboard/v0alpha1/doc.go

@@ -1,5 +1,6 @@
 // +k8s:deepcopy-gen=package
 // +k8s:openapi-gen=true
+// +k8s:defaulter-gen=TypeMeta
 // +groupName=dashboard.grafana.app
 
 package v0alpha1 // import "github.com/grafana/grafana/pkg/apis/dashboard/v0alpha1"

pkg/apis/dashboard/v0alpha1/zz_generated.openapi_violation_exceptions.list

@@ -0,0 +1 @@
+API rule violation: list_type_missing,github.com/grafana/grafana/pkg/apis/dashboard/v0alpha1,DashboardSummarySpec,Tags

pkg/apis/datasource/v0alpha1/doc.go

@@ -1,5 +1,6 @@
 // +k8s:deepcopy-gen=package
 // +k8s:openapi-gen=true
+// +k8s:defaulter-gen=TypeMeta
 // +groupName=datasources.grafana.com
 
 package v0alpha1

pkg/apis/example/v0alpha1/doc.go

@@ -1,5 +1,6 @@
 // +k8s:deepcopy-gen=package
 // +k8s:openapi-gen=true
+// +k8s:defaulter-gen=TypeMeta
 // +groupName=example.grafana.app
 
 // The testing api is a dependency free service that we can use to experiment with

pkg/apis/example/v0alpha1/zz_generated.openapi_violation_exceptions.list

@@ -0,0 +1 @@
+API rule violation: names_match,github.com/grafana/grafana/pkg/apis/example/v0alpha1,RuntimeInfo,IsEnterprise

pkg/apis/featuretoggle/v0alpha1/doc.go

@@ -1,5 +1,6 @@
 // +k8s:deepcopy-gen=package
 // +k8s:openapi-gen=true
+// +k8s:defaulter-gen=TypeMeta
 // +groupName=featuretoggle.grafana.app
 
 package v0alpha1 // import "github.com/grafana/grafana/pkg/apis/featuretoggle/v0alpha1"

pkg/apis/featuretoggle/v0alpha1/zz_generated.openapi_violation_exceptions.list

@@ -0,0 +1,3 @@
+API rule violation: list_type_missing,github.com/grafana/grafana/pkg/apis/featuretoggle/v0alpha1,ResolvedToggleState,Toggles
+API rule violation: names_match,github.com/grafana/grafana/pkg/apis/featuretoggle/v0alpha1,FeatureSpec,FrontendOnly
+API rule violation: names_match,github.com/grafana/grafana/pkg/apis/featuretoggle/v0alpha1,FeatureSpec,Owner

pkg/apis/folders/v0alpha1/doc.go

@@ -1,5 +1,6 @@
 // +k8s:deepcopy-gen=package
 // +k8s:openapi-gen=true
+// +k8s:defaulter-gen=TypeMeta
 // +groupName=folders.grafana.app
 
 package v0alpha1 // import "github.com/grafana/grafana/pkg/apis/folders/v0alpha1"

pkg/apis/folders/v0alpha1/zz_generated.openapi_violation_exceptions.list

@@ -0,0 +1 @@
+API rule violation: list_type_missing,github.com/grafana/grafana/pkg/apis/folders/v0alpha1,FolderInfo,Items

pkg/apis/playlist/v0alpha1/doc.go

@@ -1,5 +1,6 @@
 // +k8s:deepcopy-gen=package
 // +k8s:openapi-gen=true
+// +k8s:defaulter-gen=TypeMeta
 // +groupName=playlist.grafana.app
 
 package v0alpha1 // import "github.com/grafana/grafana/pkg/apis/playlist/v0alpha1"

pkg/apis/playlist/v0alpha1/zz_generated.deepcopy.go

@@ -1,21 +1,7 @@
 //go:build !ignore_autogenerated
 // +build !ignore_autogenerated
 
-/*
-Copyright The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// SPDX-License-Identifier: AGPL-3.0-only
 
 // Code generated by deepcopy-gen. DO NOT EDIT.
 

pkg/apis/playlist/v0alpha1/zz_generated.defaults.go

@@ -1,21 +1,7 @@
 //go:build !ignore_autogenerated
 // +build !ignore_autogenerated
 
-/*
-Copyright The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// SPDX-License-Identifier: AGPL-3.0-only
 
 // Code generated by defaulter-gen. DO NOT EDIT.
 

pkg/apis/playlist/v0alpha1/zz_generated.openapi_violation_exceptions.list

@@ -0,0 +1 @@
+API rule violation: list_type_missing,github.com/grafana/grafana/pkg/apis/playlist/v0alpha1,Spec,Items

pkg/generated/informers/externalversions/factory.go

@@ -28,6 +28,7 @@ type sharedInformerFactory struct {
 	lock             sync.Mutex
 	defaultResync    time.Duration
 	customResync     map[reflect.Type]time.Duration
+	transform        cache.TransformFunc
 
 	informers map[reflect.Type]cache.SharedIndexInformer
 	// startedInformers is used for tracking which informers have been started.
@@ -66,6 +67,14 @@ func WithNamespace(namespace string) SharedInformerOption {
 	}
 }
 
+// WithTransform sets a transform on all informers.
+func WithTransform(transform cache.TransformFunc) SharedInformerOption {
+	return func(factory *sharedInformerFactory) *sharedInformerFactory {
+		factory.transform = transform
+		return factory
+	}
+}
+
 // NewSharedInformerFactory constructs a new instance of sharedInformerFactory for all namespaces.
 func NewSharedInformerFactory(client versioned.Interface, defaultResync time.Duration) SharedInformerFactory {
 	return NewSharedInformerFactoryWithOptions(client, defaultResync)
@@ -152,7 +161,7 @@ func (f *sharedInformerFactory) WaitForCacheSync(stopCh <-chan struct{}) map[ref
 	return res
 }
 
-// InternalInformerFor returns the SharedIndexInformer for obj using an internal
+// InformerFor returns the SharedIndexInformer for obj using an internal
 // client.
 func (f *sharedInformerFactory) InformerFor(obj runtime.Object, newFunc internalinterfaces.NewInformerFunc) cache.SharedIndexInformer {
 	f.lock.Lock()
@@ -170,6 +179,7 @@ func (f *sharedInformerFactory) InformerFor(obj runtime.Object, newFunc internal
 	}
 
 	informer = newFunc(f.client, resyncPeriod)
+	informer.SetTransform(f.transform)
 	f.informers[informerType] = informer
 
 	return informer
@@ -225,7 +235,7 @@ type SharedInformerFactory interface {
 	// ForResource gives generic access to a shared informer of the matching type.
 	ForResource(resource schema.GroupVersionResource) (GenericInformer, error)
 
-	// InternalInformerFor returns the SharedIndexInformer for obj using an internal
+	// InformerFor returns the SharedIndexInformer for obj using an internal
 	// client.
 	InformerFor(obj runtime.Object, newFunc internalinterfaces.NewInformerFunc) cache.SharedIndexInformer