Add godocs for inject packages

pkg/controller/example_controllermanager_test.go

@@ -0,0 +1,24 @@
+/*
+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.
+*/
+
+package controller_test
+
+import "github.com/kubernetes-sigs/kubebuilder/pkg/controller"
+
+func ExampleControllerManager() {
+	// Create a new empty ControllerManager for managing Informers and Controllers
+	var _ = &controller.ControllerManager{}
+}

pkg/inject/args/args.go

@@ -77,15 +77,28 @@ func CreateInjectArgs(config *rest.Config) InjectArgs {
 	}
 }
 
+// Injector is used by code generators to register code generated objects
 type Injector struct {
-	CRDs              []*apiextensionsv1beta1.CustomResourceDefinition
-	PolicyRules       []rbacv1.PolicyRule
-	GroupVersions     []schema.GroupVersion
-	Runnables         []Runnable
-	RunFns            []RunFn
+	// CRDs are CRDs that may be created / updated at startup
+	CRDs []*apiextensionsv1beta1.CustomResourceDefinition
+
+	// PolicyRules are RBAC policy rules that may be installed with the controller
+	PolicyRules []rbacv1.PolicyRule
+
+	// GroupVersions are the api group versions in the CRDs
+	GroupVersions []schema.GroupVersion
+
+	// Runnables objects run with RunArguments
+	Runnables []Runnable
+
+	// RunFns are functions run with RunArguments
+	RunFns []RunFn
+
+	// ControllerManager is used to register Informers and Controllers
 	ControllerManager *controller.ControllerManager
 }
 
+// Run will run all of the registered RunFns and Runnables
 func (i Injector) Run(a run.RunArguments) error {
 	for _, r := range i.Runnables {
 		go r.Run(a)
@@ -96,8 +109,10 @@ func (i Injector) Run(a run.RunArguments) error {
 	return nil
 }
 
+// RunFn can be registered with an Injector and run
 type RunFn func(arguments run.RunArguments) error
 
+// Runnable can be registered with an Injector and run
 type Runnable interface {
 	Run(arguments run.RunArguments) error
 }

pkg/inject/args/example_args_test.go

@@ -0,0 +1,47 @@
+/*
+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.
+*/
+
+package args_test
+
+import (
+	"flag"
+	"github.com/kubernetes-sigs/kubebuilder/pkg/config"
+	"github.com/kubernetes-sigs/kubebuilder/pkg/inject/args"
+)
+
+func Example() {
+	flag.Parse()
+	config := config.GetConfigOrDie()
+
+	// Create base arguments for initializing controllers
+	var _ = args.CreateInjectArgs(config)
+}
+
+func ExampleCreateInjectArgs() {
+	flag.Parse()
+	config := config.GetConfigOrDie()
+
+	// Create base arguments for initializing controllers
+	var _ = args.CreateInjectArgs(config)
+}
+
+func ExampleInjectArgs_CreateRecorder() {
+	flag.Parse()
+	config := config.GetConfigOrDie()
+
+	iargs := args.CreateInjectArgs(config)
+	var _ = iargs.CreateRecorder("ControllerName")
+}

pkg/inject/run/example_args_test.go

@@ -0,0 +1,29 @@
+/*
+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.
+*/
+
+package run_test
+
+import "github.com/kubernetes-sigs/kubebuilder/pkg/inject/run"
+
+func Example() {
+	// Create arguments for running Controllers
+	var _ = run.CreateRunArguments()
+}
+
+func ExampleCreateInjectArgs() {
+	// Create arguments for running Controllers
+	var _ = run.CreateRunArguments()
+}