Use kubernetes/code-generator (#215)

* Use kubernetes/code-generator
* Use v1apha1 instead of internal version
* Move api helpers to v1alpha1

apis/monitoring/doc.go

@@ -0,0 +1,5 @@
+// package monitoring is the internal version of the API.
+
+// +k8s:deepcopy-gen=package,register
+// +groupName=monitoring.appscode.com
+package monitoring

apis/monitoring/install/install.go

@@ -0,0 +1,28 @@
+package install
+
+import (
+	tapi "github.com/appscode/searchlight/apis/monitoring"
+	"github.com/appscode/searchlight/apis/monitoring/v1alpha1"
+	"k8s.io/apimachinery/pkg/apimachinery/announced"
+	"k8s.io/apimachinery/pkg/apimachinery/registered"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/util/sets"
+)
+
+// Install registers the API group and adds types to a scheme
+func Install(groupFactoryRegistry announced.APIGroupFactoryRegistry, registry *registered.APIRegistrationManager, scheme *runtime.Scheme) {
+	if err := announced.NewGroupMetaFactory(
+		&announced.GroupMetaFactoryArgs{
+			GroupName:                  tapi.GroupName,
+			VersionPreferenceOrder:     []string{v1alpha1.SchemeGroupVersion.Version},
+			ImportPrefix:               "gitub.com/appscode/searchlight/apis/monitoring",
+			RootScopedKinds:            sets.NewString("CustomResourceDefinition"),
+			AddInternalObjectsToScheme: tapi.AddToScheme,
+		},
+		announced.VersionToSchemeFunc{
+			v1alpha1.SchemeGroupVersion.Version: v1alpha1.AddToScheme,
+		},
+	).Announce(groupFactoryRegistry).RegisterAndEnable(registry, scheme); err != nil {
+		panic(err)
+	}
+}

api/register.go → apis/monitoring/register.go

@@ -1,4 +1,4 @@
-package api
+package monitoring
 
 import (
 	"k8s.io/apimachinery/pkg/runtime"
@@ -11,12 +11,12 @@ const GroupName = "monitoring.appscode.com"
 // SchemeGroupVersion is group version used to register these objects
 var SchemeGroupVersion = schema.GroupVersion{Group: GroupName, Version: runtime.APIVersionInternal}
 
-// Kind takes an unqualified kind and returns back a Group qualified GroupKind
+// Kind takes an unqualified kind and returns a Group qualified GroupKind
 func Kind(kind string) schema.GroupKind {
 	return SchemeGroupVersion.WithKind(kind).GroupKind()
 }
 
-// Resource takes an unqualified resource and returns back a Group qualified GroupResource
+// Resource takes an unqualified resource and returns a Group qualified GroupResource
 func Resource(resource string) schema.GroupResource {
 	return SchemeGroupVersion.WithResource(resource).GroupResource()
 }
@@ -26,26 +26,15 @@ var (
 	AddToScheme   = SchemeBuilder.AddToScheme
 )
 
-// Adds the list of known types to apiv1.Scheme.
+// Adds the list of known types to api.Scheme.
 func addKnownTypes(scheme *runtime.Scheme) error {
 	scheme.AddKnownTypes(SchemeGroupVersion,
-		&PodAlert{},
-		&PodAlertList{},
-
-		&NodeAlert{},
-		&NodeAlertList{},
-
 		&ClusterAlert{},
 		&ClusterAlertList{},
+		&NodeAlert{},
+		&NodeAlertList{},
+		&PodAlert{},
+		&PodAlertList{},
 	)
 	return nil
 }
-
-func (a *PodAlert) GetObjectKind() schema.ObjectKind       { return &a.TypeMeta }
-func (obj *PodAlertList) GetObjectKind() schema.ObjectKind { return &obj.TypeMeta }
-
-func (a *NodeAlert) GetObjectKind() schema.ObjectKind       { return &a.TypeMeta }
-func (obj *NodeAlertList) GetObjectKind() schema.ObjectKind { return &obj.TypeMeta }
-
-func (a *ClusterAlert) GetObjectKind() schema.ObjectKind       { return &a.TypeMeta }
-func (obj *ClusterAlertList) GetObjectKind() schema.ObjectKind { return &obj.TypeMeta }

api/types.go → apis/monitoring/types.go

@@ -1,10 +1,12 @@
-package api
+package monitoring
 
 import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 )
 
-// ClusterAlert types for appscode.
+// +genclient=true
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
 type ClusterAlert struct {
 	metav1.TypeMeta `json:",inline"`
 	// Standard object's metadata.
@@ -49,7 +51,11 @@ type ClusterAlertSpec struct {
 	Vars map[string]interface{} `json:"vars,omitempty"`
 }
 
-// NodeAlert types for appscode.
+type CheckCluster string
+
+// +genclient=true
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
 type NodeAlert struct {
 	metav1.TypeMeta `json:",inline"`
 	// Standard object's metadata.
@@ -98,7 +104,11 @@ type NodeAlertSpec struct {
 	Vars map[string]interface{} `json:"vars,omitempty"`
 }
 
-// PodAlert types for appscode.
+type CheckNode string
+
+// +genclient=true
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
 type PodAlert struct {
 	metav1.TypeMeta `json:",inline"`
 	// Standard object's metadata.
@@ -147,6 +157,8 @@ type PodAlertSpec struct {
 	Vars map[string]interface{} `json:"vars,omitempty"`
 }
 
+type CheckPod string
+
 type Receiver struct {
 	// For which state notification will be sent
 	State string `json:"state,omitempty"`

api/alert.go → apis/monitoring/v1alpha1/alert.go

@@ -1,4 +1,4 @@
-package api
+package v1alpha1
 
 import "time"
 

api/cluster_alert.go → apis/monitoring/v1alpha1/cluster_alert.go

@@ -1,4 +1,4 @@
-package api
+package v1alpha1
 
 import (
 	"fmt"

apis/monitoring/v1alpha1/doc.go

@@ -0,0 +1,8 @@
+// Package v1alpha1 is the v1alpha1 version of the API.
+
+// +k8s:deepcopy-gen=package,register
+// +k8s:conversion-gen=github.com/appscode/searchlight/apis/monitoring
+// +k8s:openapi-gen=true
+// +k8s:defaulter-gen=TypeMeta
+// +groupName=monitoring.appscode.com
+package v1alpha1

api/icinga.go → apis/monitoring/v1alpha1/icinga.go

@@ -1,4 +1,4 @@
-package api
+package v1alpha1
 
 import (
 	"fmt"

api/node_alert.go → apis/monitoring/v1alpha1/node_alert.go

@@ -1,4 +1,4 @@
-package api
+package v1alpha1
 
 import (
 	"fmt"

api/pod_alert.go → apis/monitoring/v1alpha1/pod_alert.go

@@ -1,4 +1,4 @@
-package api
+package v1alpha1
 
 import (
 	"fmt"

apis/monitoring/v1alpha1/register.go

@@ -0,0 +1,48 @@
+package v1alpha1
+
+import (
+	"github.com/appscode/searchlight/apis/monitoring"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+)
+
+var SchemeGroupVersion = schema.GroupVersion{Group: monitoring.GroupName, Version: "v1alpha1"}
+
+var (
+	// TODO: move SchemeBuilder with zz_generated.deepcopy.go to k8s.io/api.
+	// localSchemeBuilder and AddToScheme will stay in k8s.io/kubernetes.
+	SchemeBuilder      runtime.SchemeBuilder
+	localSchemeBuilder = &SchemeBuilder
+	AddToScheme        = localSchemeBuilder.AddToScheme
+)
+
+func init() {
+	// We only register manually written functions here. The registration of the
+	// generated functions takes place in the generated files. The separation
+	// makes the code compile even when the generated files are missing.
+	localSchemeBuilder.Register(addKnownTypes)
+}
+
+// Resource takes an unqualified resource and returns a Group qualified GroupResource
+func Resource(resource string) schema.GroupResource {
+	return SchemeGroupVersion.WithResource(resource).GroupResource()
+}
+
+// Adds the list of known types to api.Scheme.
+func addKnownTypes(scheme *runtime.Scheme) error {
+	scheme.AddKnownTypes(SchemeGroupVersion,
+		&ClusterAlert{},
+		&ClusterAlertList{},
+		&NodeAlert{},
+		&NodeAlertList{},
+		&PodAlert{},
+		&PodAlertList{},
+	)
+
+	scheme.AddKnownTypes(SchemeGroupVersion,
+		&metav1.Status{},
+	)
+	metav1.AddToGroupVersion(scheme, SchemeGroupVersion)
+	return nil
+}