Add MetricTemplate CRD and clientset

pkg/apis/flagger/v1alpha1/doc.go

@@ -0,0 +1,21 @@
+/*
+Copyright The Flagger 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.
+*/
+
+// +k8s:deepcopy-gen=package
+
+// Package v1alpha1 is the v1alpha1 version of the API.
+// +groupName=flagger.app
+package v1alpha1

pkg/apis/flagger/v1alpha1/metric.go

@@ -0,0 +1,120 @@
+/*
+Copyright The Flagger 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 v1alpha1
+
+import (
+	"text/template"
+
+	corev1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+const (
+	MetricTemplateKind = "MetricTemplate"
+	MetricInterval     = "1m"
+)
+
+// +genclient
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+// MetricTemplate is a specification for a canary analysis metric
+type MetricTemplate struct {
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+
+	Spec   MetricTemplateSpec   `json:"spec"`
+	Status MetricTemplateStatus `json:"status"`
+}
+
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+// MetricTemplateList is a list of metric template resources
+type MetricTemplateList struct {
+	metav1.TypeMeta `json:",inline"`
+	metav1.ListMeta `json:"metadata"`
+
+	Items []MetricTemplate `json:"items"`
+}
+
+// MetricTemplateSpec is the spec for a metric template resource
+type MetricTemplateSpec struct {
+	// Provider of this metric
+	Provider MetricTemplateProvider `json:"provider,omitempty"`
+
+	// Query template for this metric
+	Query string `json:"query,omitempty"`
+}
+
+// MetricProvider is the spec for a MetricProvider resource
+type MetricTemplateProvider struct {
+	// Type of provider
+	Type string `json:"type,omitempty"`
+
+	// HTTP(S) address of this provider
+	Address string `json:"address,omitempty"`
+
+	// Secret reference containing the provider credentials
+	// +optional
+	SecretRef *corev1.LocalObjectReference `json:"secretRef,omitempty"`
+}
+
+// MetricTemplateModel is the query template model
+type MetricTemplateModel struct {
+	Name      string `json:"name"`
+	Namespace string `json:"namespace"`
+	Target    string `json:"target"`
+	Service   string `json:"service"`
+	Ingress   string `json:"ingress"`
+	Interval  string `json:"interval"`
+}
+
+// TemplateFunctions returns a map of functions, one for each model field
+func (mtm *MetricTemplateModel) TemplateFunctions() template.FuncMap {
+	return template.FuncMap{
+		"name":      func() string { return mtm.Name },
+		"namespace": func() string { return mtm.Namespace },
+		"target":    func() string { return mtm.Target },
+		"service":   func() string { return mtm.Service },
+		"ingress":   func() string { return mtm.Ingress },
+		"interval":  func() string { return mtm.Interval },
+	}
+}
+
+type MetricTemplateStatus struct {
+	// Conditions of this status
+	Conditions []MetricTemplateCondition `json:"conditions,omitempty"`
+}
+
+type MetricTemplateCondition struct {
+	// Type of this condition
+	Type string `json:"type"`
+
+	// Status of this condition
+	Status corev1.ConditionStatus `json:"status"`
+
+	// LastUpdateTime of this condition
+	LastUpdateTime metav1.Time `json:"lastUpdateTime,omitempty"`
+
+	// LastTransitionTime of this condition
+	LastTransitionTime metav1.Time `json:"lastTransitionTime,omitempty"`
+
+	// Reason for the current status of this condition
+	Reason string `json:"reason,omitempty"`
+
+	// Message associated with this condition
+	Message string `json:"message,omitempty"`
+}

pkg/apis/flagger/v1alpha1/register.go

@@ -0,0 +1,53 @@
+/*
+Copyright The Flagger 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 v1alpha1
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+
+	"github.com/weaveworks/flagger/pkg/apis/flagger"
+)
+
+// SchemeGroupVersion is group version used to register these objects
+var SchemeGroupVersion = schema.GroupVersion{Group: flagger.GroupName, Version: "v1alpha1"}
+
+// Kind takes an unqualified kind and returns back a Group qualified GroupKind
+func Kind(kind string) schema.GroupKind {
+	return SchemeGroupVersion.WithKind(kind).GroupKind()
+}
+
+// Resource takes an unqualified resource and returns a Group qualified GroupResource
+func Resource(resource string) schema.GroupResource {
+	return SchemeGroupVersion.WithResource(resource).GroupResource()
+}
+
+var (
+	SchemeBuilder = runtime.NewSchemeBuilder(addKnownTypes)
+	AddToScheme   = SchemeBuilder.AddToScheme
+)
+
+// Adds the list of known types to Scheme.
+func addKnownTypes(scheme *runtime.Scheme) error {
+	scheme.AddKnownTypes(SchemeGroupVersion,
+		&MetricTemplate{},
+		&MetricTemplateList{},
+	)
+	metav1.AddToGroupVersion(scheme, SchemeGroupVersion)
+	return nil
+}

pkg/apis/flagger/v1alpha1/zz_generated.deepcopy.go

@@ -0,0 +1,182 @@
+// +build !ignore_autogenerated
+
+/*
+Copyright The Flagger 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.
+*/
+
+// Code generated by deepcopy-gen. DO NOT EDIT.
+
+package v1alpha1
+
+import (
+	v1 "k8s.io/api/core/v1"
+	runtime "k8s.io/apimachinery/pkg/runtime"
+)
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *MetricTemplate) DeepCopyInto(out *MetricTemplate) {
+	*out = *in
+	out.TypeMeta = in.TypeMeta
+	in.ObjectMeta.DeepCopyInto(&out.ObjectMeta)
+	in.Spec.DeepCopyInto(&out.Spec)
+	in.Status.DeepCopyInto(&out.Status)
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new MetricTemplate.
+func (in *MetricTemplate) DeepCopy() *MetricTemplate {
+	if in == nil {
+		return nil
+	}
+	out := new(MetricTemplate)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *MetricTemplate) DeepCopyObject() runtime.Object {
+	if c := in.DeepCopy(); c != nil {
+		return c
+	}
+	return nil
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *MetricTemplateCondition) DeepCopyInto(out *MetricTemplateCondition) {
+	*out = *in
+	in.LastUpdateTime.DeepCopyInto(&out.LastUpdateTime)
+	in.LastTransitionTime.DeepCopyInto(&out.LastTransitionTime)
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new MetricTemplateCondition.
+func (in *MetricTemplateCondition) DeepCopy() *MetricTemplateCondition {
+	if in == nil {
+		return nil
+	}
+	out := new(MetricTemplateCondition)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *MetricTemplateList) DeepCopyInto(out *MetricTemplateList) {
+	*out = *in
+	out.TypeMeta = in.TypeMeta
+	in.ListMeta.DeepCopyInto(&out.ListMeta)
+	if in.Items != nil {
+		in, out := &in.Items, &out.Items
+		*out = make([]MetricTemplate, len(*in))
+		for i := range *in {
+			(*in)[i].DeepCopyInto(&(*out)[i])
+		}
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new MetricTemplateList.
+func (in *MetricTemplateList) DeepCopy() *MetricTemplateList {
+	if in == nil {
+		return nil
+	}
+	out := new(MetricTemplateList)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *MetricTemplateList) DeepCopyObject() runtime.Object {
+	if c := in.DeepCopy(); c != nil {
+		return c
+	}
+	return nil
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *MetricTemplateModel) DeepCopyInto(out *MetricTemplateModel) {
+	*out = *in
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new MetricTemplateModel.
+func (in *MetricTemplateModel) DeepCopy() *MetricTemplateModel {
+	if in == nil {
+		return nil
+	}
+	out := new(MetricTemplateModel)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *MetricTemplateProvider) DeepCopyInto(out *MetricTemplateProvider) {
+	*out = *in
+	if in.SecretRef != nil {
+		in, out := &in.SecretRef, &out.SecretRef
+		*out = new(v1.LocalObjectReference)
+		**out = **in
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new MetricTemplateProvider.
+func (in *MetricTemplateProvider) DeepCopy() *MetricTemplateProvider {
+	if in == nil {
+		return nil
+	}
+	out := new(MetricTemplateProvider)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *MetricTemplateSpec) DeepCopyInto(out *MetricTemplateSpec) {
+	*out = *in
+	in.Provider.DeepCopyInto(&out.Provider)
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new MetricTemplateSpec.
+func (in *MetricTemplateSpec) DeepCopy() *MetricTemplateSpec {
+	if in == nil {
+		return nil
+	}
+	out := new(MetricTemplateSpec)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *MetricTemplateStatus) DeepCopyInto(out *MetricTemplateStatus) {
+	*out = *in
+	if in.Conditions != nil {
+		in, out := &in.Conditions, &out.Conditions
+		*out = make([]MetricTemplateCondition, len(*in))
+		for i := range *in {
+			(*in)[i].DeepCopyInto(&(*out)[i])
+		}
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new MetricTemplateStatus.
+func (in *MetricTemplateStatus) DeepCopy() *MetricTemplateStatus {
+	if in == nil {
+		return nil
+	}
+	out := new(MetricTemplateStatus)
+	in.DeepCopyInto(out)
+	return out
+}

pkg/apis/flagger/v1alpha3/types.go

@@ -135,6 +135,14 @@ type CanaryMetric struct {
 	Threshold float64 `json:"threshold"`
 	// +optional
 	Query string `json:"query,omitempty"`
+	// +optional
+	TemplateRef *MetricTemplateRef `json:"templateRef,omitempty"`
+}
+
+type MetricTemplateRef struct {
+	Name string `json:"name"`
+	// +optional
+	Namespace string `json:"namespace,omitempty"`
 }
 
 // HookType can be pre, post or during rollout

pkg/apis/flagger/v1alpha3/zz_generated.deepcopy.go

@@ -60,7 +60,9 @@ func (in *CanaryAnalysis) DeepCopyInto(out *CanaryAnalysis) {
 	if in.Metrics != nil {
 		in, out := &in.Metrics, &out.Metrics
 		*out = make([]CanaryMetric, len(*in))
-		copy(*out, *in)
+		for i := range *in {
+			(*in)[i].DeepCopyInto(&(*out)[i])
+		}
 	}
 	if in.Webhooks != nil {
 		in, out := &in.Webhooks, &out.Webhooks
@@ -143,6 +145,11 @@ func (in *CanaryList) DeepCopyObject() runtime.Object {
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
 func (in *CanaryMetric) DeepCopyInto(out *CanaryMetric) {
 	*out = *in
+	if in.TemplateRef != nil {
+		in, out := &in.TemplateRef, &out.TemplateRef
+		*out = new(MetricTemplateRef)
+		**out = **in
+	}
 	return
 }
 
@@ -338,3 +345,19 @@ func (in *CanaryWebhookPayload) DeepCopy() *CanaryWebhookPayload {
 	in.DeepCopyInto(out)
 	return out
 }
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *MetricTemplateRef) DeepCopyInto(out *MetricTemplateRef) {
+	*out = *in
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new MetricTemplateRef.
+func (in *MetricTemplateRef) DeepCopy() *MetricTemplateRef {
+	if in == nil {
+		return nil
+	}
+	out := new(MetricTemplateRef)
+	in.DeepCopyInto(out)
+	return out
+}

pkg/client/clientset/versioned/clientset.go

@@ -22,6 +22,7 @@ import (
 	"fmt"
 
 	appmeshv1beta1 "github.com/weaveworks/flagger/pkg/client/clientset/versioned/typed/appmesh/v1beta1"
+	flaggerv1alpha1 "github.com/weaveworks/flagger/pkg/client/clientset/versioned/typed/flagger/v1alpha1"
 	flaggerv1alpha3 "github.com/weaveworks/flagger/pkg/client/clientset/versioned/typed/flagger/v1alpha3"
 	gloov1 "github.com/weaveworks/flagger/pkg/client/clientset/versioned/typed/gloo/v1"
 	networkingv1alpha3 "github.com/weaveworks/flagger/pkg/client/clientset/versioned/typed/istio/v1alpha3"
@@ -36,6 +37,7 @@ type Interface interface {
 	Discovery() discovery.DiscoveryInterface
 	AppmeshV1beta1() appmeshv1beta1.AppmeshV1beta1Interface
 	FlaggerV1alpha3() flaggerv1alpha3.FlaggerV1alpha3Interface
+	FlaggerV1alpha1() flaggerv1alpha1.FlaggerV1alpha1Interface
 	GlooV1() gloov1.GlooV1Interface
 	NetworkingV1alpha3() networkingv1alpha3.NetworkingV1alpha3Interface
 	ProjectcontourV1() projectcontourv1.ProjectcontourV1Interface
@@ -48,6 +50,7 @@ type Clientset struct {
 	*discovery.DiscoveryClient
 	appmeshV1beta1     *appmeshv1beta1.AppmeshV1beta1Client
 	flaggerV1alpha3    *flaggerv1alpha3.FlaggerV1alpha3Client
+	flaggerV1alpha1    *flaggerv1alpha1.FlaggerV1alpha1Client
 	glooV1             *gloov1.GlooV1Client
 	networkingV1alpha3 *networkingv1alpha3.NetworkingV1alpha3Client
 	projectcontourV1   *projectcontourv1.ProjectcontourV1Client
@@ -64,6 +67,11 @@ func (c *Clientset) FlaggerV1alpha3() flaggerv1alpha3.FlaggerV1alpha3Interface {
 	return c.flaggerV1alpha3
 }
 
+// FlaggerV1alpha1 retrieves the FlaggerV1alpha1Client
+func (c *Clientset) FlaggerV1alpha1() flaggerv1alpha1.FlaggerV1alpha1Interface {
+	return c.flaggerV1alpha1
+}
+
 // GlooV1 retrieves the GlooV1Client
 func (c *Clientset) GlooV1() gloov1.GlooV1Interface {
 	return c.glooV1
@@ -113,6 +121,10 @@ func NewForConfig(c *rest.Config) (*Clientset, error) {
 	if err != nil {
 		return nil, err
 	}
+	cs.flaggerV1alpha1, err = flaggerv1alpha1.NewForConfig(&configShallowCopy)
+	if err != nil {
+		return nil, err
+	}
 	cs.glooV1, err = gloov1.NewForConfig(&configShallowCopy)
 	if err != nil {
 		return nil, err
@@ -143,6 +155,7 @@ func NewForConfigOrDie(c *rest.Config) *Clientset {
 	var cs Clientset
 	cs.appmeshV1beta1 = appmeshv1beta1.NewForConfigOrDie(c)
 	cs.flaggerV1alpha3 = flaggerv1alpha3.NewForConfigOrDie(c)
+	cs.flaggerV1alpha1 = flaggerv1alpha1.NewForConfigOrDie(c)
 	cs.glooV1 = gloov1.NewForConfigOrDie(c)
 	cs.networkingV1alpha3 = networkingv1alpha3.NewForConfigOrDie(c)
 	cs.projectcontourV1 = projectcontourv1.NewForConfigOrDie(c)
@@ -157,6 +170,7 @@ func New(c rest.Interface) *Clientset {
 	var cs Clientset
 	cs.appmeshV1beta1 = appmeshv1beta1.New(c)
 	cs.flaggerV1alpha3 = flaggerv1alpha3.New(c)
+	cs.flaggerV1alpha1 = flaggerv1alpha1.New(c)
 	cs.glooV1 = gloov1.New(c)
 	cs.networkingV1alpha3 = networkingv1alpha3.New(c)
 	cs.projectcontourV1 = projectcontourv1.New(c)

pkg/client/clientset/versioned/fake/clientset_generated.go

@@ -22,6 +22,8 @@ import (
 	clientset "github.com/weaveworks/flagger/pkg/client/clientset/versioned"
 	appmeshv1beta1 "github.com/weaveworks/flagger/pkg/client/clientset/versioned/typed/appmesh/v1beta1"
 	fakeappmeshv1beta1 "github.com/weaveworks/flagger/pkg/client/clientset/versioned/typed/appmesh/v1beta1/fake"
+	flaggerv1alpha1 "github.com/weaveworks/flagger/pkg/client/clientset/versioned/typed/flagger/v1alpha1"
+	fakeflaggerv1alpha1 "github.com/weaveworks/flagger/pkg/client/clientset/versioned/typed/flagger/v1alpha1/fake"
 	flaggerv1alpha3 "github.com/weaveworks/flagger/pkg/client/clientset/versioned/typed/flagger/v1alpha3"
 	fakeflaggerv1alpha3 "github.com/weaveworks/flagger/pkg/client/clientset/versioned/typed/flagger/v1alpha3/fake"
 	gloov1 "github.com/weaveworks/flagger/pkg/client/clientset/versioned/typed/gloo/v1"
@@ -96,6 +98,11 @@ func (c *Clientset) FlaggerV1alpha3() flaggerv1alpha3.FlaggerV1alpha3Interface {
 	return &fakeflaggerv1alpha3.FakeFlaggerV1alpha3{Fake: &c.Fake}
 }
 
+// FlaggerV1alpha1 retrieves the FlaggerV1alpha1Client
+func (c *Clientset) FlaggerV1alpha1() flaggerv1alpha1.FlaggerV1alpha1Interface {
+	return &fakeflaggerv1alpha1.FakeFlaggerV1alpha1{Fake: &c.Fake}
+}
+
 // GlooV1 retrieves the GlooV1Client
 func (c *Clientset) GlooV1() gloov1.GlooV1Interface {
 	return &fakegloov1.FakeGlooV1{Fake: &c.Fake}

pkg/client/clientset/versioned/fake/register.go

@@ -20,6 +20,7 @@ package fake
 
 import (
 	appmeshv1beta1 "github.com/weaveworks/flagger/pkg/apis/appmesh/v1beta1"
+	flaggerv1alpha1 "github.com/weaveworks/flagger/pkg/apis/flagger/v1alpha1"
 	flaggerv1alpha3 "github.com/weaveworks/flagger/pkg/apis/flagger/v1alpha3"
 	gloov1 "github.com/weaveworks/flagger/pkg/apis/gloo/v1"
 	networkingv1alpha3 "github.com/weaveworks/flagger/pkg/apis/istio/v1alpha3"
@@ -38,6 +39,7 @@ var parameterCodec = runtime.NewParameterCodec(scheme)
 var localSchemeBuilder = runtime.SchemeBuilder{
 	appmeshv1beta1.AddToScheme,
 	flaggerv1alpha3.AddToScheme,
+	flaggerv1alpha1.AddToScheme,
 	gloov1.AddToScheme,
 	networkingv1alpha3.AddToScheme,
 	projectcontourv1.AddToScheme,

pkg/client/clientset/versioned/scheme/register.go

@@ -20,6 +20,7 @@ package scheme
 
 import (
 	appmeshv1beta1 "github.com/weaveworks/flagger/pkg/apis/appmesh/v1beta1"
+	flaggerv1alpha1 "github.com/weaveworks/flagger/pkg/apis/flagger/v1alpha1"
 	flaggerv1alpha3 "github.com/weaveworks/flagger/pkg/apis/flagger/v1alpha3"
 	gloov1 "github.com/weaveworks/flagger/pkg/apis/gloo/v1"
 	networkingv1alpha3 "github.com/weaveworks/flagger/pkg/apis/istio/v1alpha3"
@@ -38,6 +39,7 @@ var ParameterCodec = runtime.NewParameterCodec(Scheme)
 var localSchemeBuilder = runtime.SchemeBuilder{
 	appmeshv1beta1.AddToScheme,
 	flaggerv1alpha3.AddToScheme,
+	flaggerv1alpha1.AddToScheme,
 	gloov1.AddToScheme,
 	networkingv1alpha3.AddToScheme,
 	projectcontourv1.AddToScheme,

pkg/client/clientset/versioned/typed/flagger/v1alpha1/doc.go

@@ -0,0 +1,20 @@
+/*
+Copyright The Flagger 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.
+*/
+
+// Code generated by client-gen. DO NOT EDIT.
+
+// This package has the automatically generated typed clients.
+package v1alpha1

pkg/client/clientset/versioned/typed/flagger/v1alpha1/fake/doc.go

@@ -0,0 +1,20 @@
+/*
+Copyright The Flagger 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.
+*/
+
+// Code generated by client-gen. DO NOT EDIT.
+
+// Package fake has the automatically generated clients.
+package fake

pkg/client/clientset/versioned/typed/flagger/v1alpha1/fake/fake_flagger_client.go

@@ -0,0 +1,40 @@
+/*
+Copyright The Flagger 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.
+*/
+
+// Code generated by client-gen. DO NOT EDIT.
+
+package fake
+
+import (
+	v1alpha1 "github.com/weaveworks/flagger/pkg/client/clientset/versioned/typed/flagger/v1alpha1"
+	rest "k8s.io/client-go/rest"
+	testing "k8s.io/client-go/testing"
+)
+
+type FakeFlaggerV1alpha1 struct {
+	*testing.Fake
+}
+
+func (c *FakeFlaggerV1alpha1) MetricTemplates(namespace string) v1alpha1.MetricTemplateInterface {
+	return &FakeMetricTemplates{c, namespace}
+}
+
+// RESTClient returns a RESTClient that is used to communicate
+// with API server by this client implementation.
+func (c *FakeFlaggerV1alpha1) RESTClient() rest.Interface {
+	var ret *rest.RESTClient
+	return ret
+}

pkg/client/clientset/versioned/typed/flagger/v1alpha1/fake/fake_metrictemplate.go

@@ -0,0 +1,140 @@
+/*
+Copyright The Flagger 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.
+*/
+
+// Code generated by client-gen. DO NOT EDIT.
+
+package fake
+
+import (
+	v1alpha1 "github.com/weaveworks/flagger/pkg/apis/flagger/v1alpha1"
+	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	labels "k8s.io/apimachinery/pkg/labels"
+	schema "k8s.io/apimachinery/pkg/runtime/schema"
+	types "k8s.io/apimachinery/pkg/types"
+	watch "k8s.io/apimachinery/pkg/watch"
+	testing "k8s.io/client-go/testing"
+)
+
+// FakeMetricTemplates implements MetricTemplateInterface
+type FakeMetricTemplates struct {
+	Fake *FakeFlaggerV1alpha1
+	ns   string
+}
+
+var metrictemplatesResource = schema.GroupVersionResource{Group: "flagger.app", Version: "v1alpha1", Resource: "metrictemplates"}
+
+var metrictemplatesKind = schema.GroupVersionKind{Group: "flagger.app", Version: "v1alpha1", Kind: "MetricTemplate"}
+
+// Get takes name of the metricTemplate, and returns the corresponding metricTemplate object, and an error if there is any.
+func (c *FakeMetricTemplates) Get(name string, options v1.GetOptions) (result *v1alpha1.MetricTemplate, err error) {
+	obj, err := c.Fake.
+		Invokes(testing.NewGetAction(metrictemplatesResource, c.ns, name), &v1alpha1.MetricTemplate{})
+
+	if obj == nil {
+		return nil, err
+	}
+	return obj.(*v1alpha1.MetricTemplate), err
+}
+
+// List takes label and field selectors, and returns the list of MetricTemplates that match those selectors.
+func (c *FakeMetricTemplates) List(opts v1.ListOptions) (result *v1alpha1.MetricTemplateList, err error) {
+	obj, err := c.Fake.
+		Invokes(testing.NewListAction(metrictemplatesResource, metrictemplatesKind, c.ns, opts), &v1alpha1.MetricTemplateList{})
+
+	if obj == nil {
+		return nil, err
+	}
+
+	label, _, _ := testing.ExtractFromListOptions(opts)
+	if label == nil {
+		label = labels.Everything()
+	}
+	list := &v1alpha1.MetricTemplateList{ListMeta: obj.(*v1alpha1.MetricTemplateList).ListMeta}
+	for _, item := range obj.(*v1alpha1.MetricTemplateList).Items {
+		if label.Matches(labels.Set(item.Labels)) {
+			list.Items = append(list.Items, item)
+		}
+	}
+	return list, err
+}
+
+// Watch returns a watch.Interface that watches the requested metricTemplates.
+func (c *FakeMetricTemplates) Watch(opts v1.ListOptions) (watch.Interface, error) {
+	return c.Fake.
+		InvokesWatch(testing.NewWatchAction(metrictemplatesResource, c.ns, opts))
+
+}
+
+// Create takes the representation of a metricTemplate and creates it.  Returns the server's representation of the metricTemplate, and an error, if there is any.
+func (c *FakeMetricTemplates) Create(metricTemplate *v1alpha1.MetricTemplate) (result *v1alpha1.MetricTemplate, err error) {
+	obj, err := c.Fake.
+		Invokes(testing.NewCreateAction(metrictemplatesResource, c.ns, metricTemplate), &v1alpha1.MetricTemplate{})
+
+	if obj == nil {
+		return nil, err
+	}
+	return obj.(*v1alpha1.MetricTemplate), err
+}
+
+// Update takes the representation of a metricTemplate and updates it. Returns the server's representation of the metricTemplate, and an error, if there is any.
+func (c *FakeMetricTemplates) Update(metricTemplate *v1alpha1.MetricTemplate) (result *v1alpha1.MetricTemplate, err error) {
+	obj, err := c.Fake.
+		Invokes(testing.NewUpdateAction(metrictemplatesResource, c.ns, metricTemplate), &v1alpha1.MetricTemplate{})
+
+	if obj == nil {
+		return nil, err
+	}
+	return obj.(*v1alpha1.MetricTemplate), err
+}
+
+// UpdateStatus was generated because the type contains a Status member.
+// Add a +genclient:noStatus comment above the type to avoid generating UpdateStatus().
+func (c *FakeMetricTemplates) UpdateStatus(metricTemplate *v1alpha1.MetricTemplate) (*v1alpha1.MetricTemplate, error) {
+	obj, err := c.Fake.
+		Invokes(testing.NewUpdateSubresourceAction(metrictemplatesResource, "status", c.ns, metricTemplate), &v1alpha1.MetricTemplate{})
+
+	if obj == nil {
+		return nil, err
+	}
+	return obj.(*v1alpha1.MetricTemplate), err
+}
+
+// Delete takes name of the metricTemplate and deletes it. Returns an error if one occurs.
+func (c *FakeMetricTemplates) Delete(name string, options *v1.DeleteOptions) error {
+	_, err := c.Fake.
+		Invokes(testing.NewDeleteAction(metrictemplatesResource, c.ns, name), &v1alpha1.MetricTemplate{})
+
+	return err
+}
+
+// DeleteCollection deletes a collection of objects.
+func (c *FakeMetricTemplates) DeleteCollection(options *v1.DeleteOptions, listOptions v1.ListOptions) error {
+	action := testing.NewDeleteCollectionAction(metrictemplatesResource, c.ns, listOptions)
+
+	_, err := c.Fake.Invokes(action, &v1alpha1.MetricTemplateList{})
+	return err
+}
+
+// Patch applies the patch and returns the patched metricTemplate.
+func (c *FakeMetricTemplates) Patch(name string, pt types.PatchType, data []byte, subresources ...string) (result *v1alpha1.MetricTemplate, err error) {
+	obj, err := c.Fake.
+		Invokes(testing.NewPatchSubresourceAction(metrictemplatesResource, c.ns, name, pt, data, subresources...), &v1alpha1.MetricTemplate{})
+
+	if obj == nil {
+		return nil, err
+	}
+	return obj.(*v1alpha1.MetricTemplate), err
+}

pkg/client/clientset/versioned/typed/flagger/v1alpha1/flagger_client.go

@@ -0,0 +1,89 @@
+/*
+Copyright The Flagger 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.
+*/
+
+// Code generated by client-gen. DO NOT EDIT.
+
+package v1alpha1
+
+import (
+	v1alpha1 "github.com/weaveworks/flagger/pkg/apis/flagger/v1alpha1"
+	"github.com/weaveworks/flagger/pkg/client/clientset/versioned/scheme"
+	rest "k8s.io/client-go/rest"
+)
+
+type FlaggerV1alpha1Interface interface {
+	RESTClient() rest.Interface
+	MetricTemplatesGetter
+}
+
+// FlaggerV1alpha1Client is used to interact with features provided by the flagger.app group.
+type FlaggerV1alpha1Client struct {
+	restClient rest.Interface
+}
+
+func (c *FlaggerV1alpha1Client) MetricTemplates(namespace string) MetricTemplateInterface {
+	return newMetricTemplates(c, namespace)
+}
+
+// NewForConfig creates a new FlaggerV1alpha1Client for the given config.
+func NewForConfig(c *rest.Config) (*FlaggerV1alpha1Client, error) {
+	config := *c
+	if err := setConfigDefaults(&config); err != nil {
+		return nil, err
+	}
+	client, err := rest.RESTClientFor(&config)
+	if err != nil {
+		return nil, err
+	}
+	return &FlaggerV1alpha1Client{client}, nil
+}
+
+// NewForConfigOrDie creates a new FlaggerV1alpha1Client for the given config and
+// panics if there is an error in the config.
+func NewForConfigOrDie(c *rest.Config) *FlaggerV1alpha1Client {
+	client, err := NewForConfig(c)
+	if err != nil {
+		panic(err)
+	}
+	return client
+}
+
+// New creates a new FlaggerV1alpha1Client for the given RESTClient.
+func New(c rest.Interface) *FlaggerV1alpha1Client {
+	return &FlaggerV1alpha1Client{c}
+}
+
+func setConfigDefaults(config *rest.Config) error {
+	gv := v1alpha1.SchemeGroupVersion
+	config.GroupVersion = &gv
+	config.APIPath = "/apis"
+	config.NegotiatedSerializer = scheme.Codecs.WithoutConversion()
+
+	if config.UserAgent == "" {
+		config.UserAgent = rest.DefaultKubernetesUserAgent()
+	}
+
+	return nil
+}
+
+// RESTClient returns a RESTClient that is used to communicate
+// with API server by this client implementation.
+func (c *FlaggerV1alpha1Client) RESTClient() rest.Interface {
+	if c == nil {
+		return nil
+	}
+	return c.restClient
+}

pkg/client/clientset/versioned/typed/flagger/v1alpha1/generated_expansion.go

@@ -0,0 +1,21 @@
+/*
+Copyright The Flagger 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.
+*/
+
+// Code generated by client-gen. DO NOT EDIT.
+
+package v1alpha1
+
+type MetricTemplateExpansion interface{}

pkg/client/clientset/versioned/typed/flagger/v1alpha1/metrictemplate.go

@@ -0,0 +1,191 @@
+/*
+Copyright The Flagger 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.
+*/
+
+// Code generated by client-gen. DO NOT EDIT.
+
+package v1alpha1
+
+import (
+	"time"
+
+	v1alpha1 "github.com/weaveworks/flagger/pkg/apis/flagger/v1alpha1"
+	scheme "github.com/weaveworks/flagger/pkg/client/clientset/versioned/scheme"
+	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	types "k8s.io/apimachinery/pkg/types"
+	watch "k8s.io/apimachinery/pkg/watch"
+	rest "k8s.io/client-go/rest"
+)
+
+// MetricTemplatesGetter has a method to return a MetricTemplateInterface.
+// A group's client should implement this interface.
+type MetricTemplatesGetter interface {
+	MetricTemplates(namespace string) MetricTemplateInterface
+}
+
+// MetricTemplateInterface has methods to work with MetricTemplate resources.
+type MetricTemplateInterface interface {
+	Create(*v1alpha1.MetricTemplate) (*v1alpha1.MetricTemplate, error)
+	Update(*v1alpha1.MetricTemplate) (*v1alpha1.MetricTemplate, error)
+	UpdateStatus(*v1alpha1.MetricTemplate) (*v1alpha1.MetricTemplate, error)
+	Delete(name string, options *v1.DeleteOptions) error
+	DeleteCollection(options *v1.DeleteOptions, listOptions v1.ListOptions) error
+	Get(name string, options v1.GetOptions) (*v1alpha1.MetricTemplate, error)
+	List(opts v1.ListOptions) (*v1alpha1.MetricTemplateList, error)
+	Watch(opts v1.ListOptions) (watch.Interface, error)
+	Patch(name string, pt types.PatchType, data []byte, subresources ...string) (result *v1alpha1.MetricTemplate, err error)
+	MetricTemplateExpansion
+}
+
+// metricTemplates implements MetricTemplateInterface
+type metricTemplates struct {
+	client rest.Interface
+	ns     string
+}
+
+// newMetricTemplates returns a MetricTemplates
+func newMetricTemplates(c *FlaggerV1alpha1Client, namespace string) *metricTemplates {
+	return &metricTemplates{
+		client: c.RESTClient(),
+		ns:     namespace,
+	}
+}
+
+// Get takes name of the metricTemplate, and returns the corresponding metricTemplate object, and an error if there is any.
+func (c *metricTemplates) Get(name string, options v1.GetOptions) (result *v1alpha1.MetricTemplate, err error) {
+	result = &v1alpha1.MetricTemplate{}
+	err = c.client.Get().
+		Namespace(c.ns).
+		Resource("metrictemplates").
+		Name(name).
+		VersionedParams(&options, scheme.ParameterCodec).
+		Do().
+		Into(result)
+	return
+}
+
+// List takes label and field selectors, and returns the list of MetricTemplates that match those selectors.
+func (c *metricTemplates) List(opts v1.ListOptions) (result *v1alpha1.MetricTemplateList, err error) {
+	var timeout time.Duration
+	if opts.TimeoutSeconds != nil {
+		timeout = time.Duration(*opts.TimeoutSeconds) * time.Second
+	}
+	result = &v1alpha1.MetricTemplateList{}
+	err = c.client.Get().
+		Namespace(c.ns).
+		Resource("metrictemplates").
+		VersionedParams(&opts, scheme.ParameterCodec).
+		Timeout(timeout).
+		Do().
+		Into(result)
+	return
+}
+
+// Watch returns a watch.Interface that watches the requested metricTemplates.
+func (c *metricTemplates) Watch(opts v1.ListOptions) (watch.Interface, error) {
+	var timeout time.Duration
+	if opts.TimeoutSeconds != nil {
+		timeout = time.Duration(*opts.TimeoutSeconds) * time.Second
+	}
+	opts.Watch = true
+	return c.client.Get().
+		Namespace(c.ns).
+		Resource("metrictemplates").
+		VersionedParams(&opts, scheme.ParameterCodec).
+		Timeout(timeout).
+		Watch()
+}
+
+// Create takes the representation of a metricTemplate and creates it.  Returns the server's representation of the metricTemplate, and an error, if there is any.
+func (c *metricTemplates) Create(metricTemplate *v1alpha1.MetricTemplate) (result *v1alpha1.MetricTemplate, err error) {
+	result = &v1alpha1.MetricTemplate{}
+	err = c.client.Post().
+		Namespace(c.ns).
+		Resource("metrictemplates").
+		Body(metricTemplate).
+		Do().
+		Into(result)
+	return
+}
+
+// Update takes the representation of a metricTemplate and updates it. Returns the server's representation of the metricTemplate, and an error, if there is any.
+func (c *metricTemplates) Update(metricTemplate *v1alpha1.MetricTemplate) (result *v1alpha1.MetricTemplate, err error) {
+	result = &v1alpha1.MetricTemplate{}
+	err = c.client.Put().
+		Namespace(c.ns).
+		Resource("metrictemplates").
+		Name(metricTemplate.Name).
+		Body(metricTemplate).
+		Do().
+		Into(result)
+	return
+}
+
+// UpdateStatus was generated because the type contains a Status member.
+// Add a +genclient:noStatus comment above the type to avoid generating UpdateStatus().
+
+func (c *metricTemplates) UpdateStatus(metricTemplate *v1alpha1.MetricTemplate) (result *v1alpha1.MetricTemplate, err error) {
+	result = &v1alpha1.MetricTemplate{}
+	err = c.client.Put().
+		Namespace(c.ns).
+		Resource("metrictemplates").
+		Name(metricTemplate.Name).
+		SubResource("status").
+		Body(metricTemplate).
+		Do().
+		Into(result)
+	return
+}
+
+// Delete takes name of the metricTemplate and deletes it. Returns an error if one occurs.
+func (c *metricTemplates) Delete(name string, options *v1.DeleteOptions) error {
+	return c.client.Delete().
+		Namespace(c.ns).
+		Resource("metrictemplates").
+		Name(name).
+		Body(options).
+		Do().
+		Error()
+}
+
+// DeleteCollection deletes a collection of objects.
+func (c *metricTemplates) DeleteCollection(options *v1.DeleteOptions, listOptions v1.ListOptions) error {
+	var timeout time.Duration
+	if listOptions.TimeoutSeconds != nil {
+		timeout = time.Duration(*listOptions.TimeoutSeconds) * time.Second
+	}
+	return c.client.Delete().
+		Namespace(c.ns).
+		Resource("metrictemplates").
+		VersionedParams(&listOptions, scheme.ParameterCodec).
+		Timeout(timeout).
+		Body(options).
+		Do().
+		Error()
+}
+
+// Patch applies the patch and returns the patched metricTemplate.
+func (c *metricTemplates) Patch(name string, pt types.PatchType, data []byte, subresources ...string) (result *v1alpha1.MetricTemplate, err error) {
+	result = &v1alpha1.MetricTemplate{}
+	err = c.client.Patch(pt).
+		Namespace(c.ns).
+		Resource("metrictemplates").
+		SubResource(subresources...).
+		Name(name).
+		Body(data).
+		Do().
+		Into(result)
+	return
+}

pkg/client/informers/externalversions/flagger/interface.go

@@ -19,6 +19,7 @@ limitations under the License.
 package flagger
 
 import (
+	v1alpha1 "github.com/weaveworks/flagger/pkg/client/informers/externalversions/flagger/v1alpha1"
 	v1alpha3 "github.com/weaveworks/flagger/pkg/client/informers/externalversions/flagger/v1alpha3"
 	internalinterfaces "github.com/weaveworks/flagger/pkg/client/informers/externalversions/internalinterfaces"
 )
@@ -27,6 +28,8 @@ import (
 type Interface interface {
 	// V1alpha3 provides access to shared informers for resources in V1alpha3.
 	V1alpha3() v1alpha3.Interface
+	// V1alpha1 provides access to shared informers for resources in V1alpha1.
+	V1alpha1() v1alpha1.Interface
 }
 
 type group struct {
@@ -44,3 +47,8 @@ func New(f internalinterfaces.SharedInformerFactory, namespace string, tweakList
 func (g *group) V1alpha3() v1alpha3.Interface {
 	return v1alpha3.New(g.factory, g.namespace, g.tweakListOptions)
 }
+
+// V1alpha1 returns a new v1alpha1.Interface.
+func (g *group) V1alpha1() v1alpha1.Interface {
+	return v1alpha1.New(g.factory, g.namespace, g.tweakListOptions)
+}

pkg/client/informers/externalversions/flagger/v1alpha1/interface.go

@@ -0,0 +1,45 @@
+/*
+Copyright The Flagger 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.
+*/
+
+// Code generated by informer-gen. DO NOT EDIT.
+
+package v1alpha1
+
+import (
+	internalinterfaces "github.com/weaveworks/flagger/pkg/client/informers/externalversions/internalinterfaces"
+)
+
+// Interface provides access to all the informers in this group version.
+type Interface interface {
+	// MetricTemplates returns a MetricTemplateInformer.
+	MetricTemplates() MetricTemplateInformer
+}
+
+type version struct {
+	factory          internalinterfaces.SharedInformerFactory
+	namespace        string
+	tweakListOptions internalinterfaces.TweakListOptionsFunc
+}
+
+// New returns a new Interface.
+func New(f internalinterfaces.SharedInformerFactory, namespace string, tweakListOptions internalinterfaces.TweakListOptionsFunc) Interface {
+	return &version{factory: f, namespace: namespace, tweakListOptions: tweakListOptions}
+}
+
+// MetricTemplates returns a MetricTemplateInformer.
+func (v *version) MetricTemplates() MetricTemplateInformer {
+	return &metricTemplateInformer{factory: v.factory, namespace: v.namespace, tweakListOptions: v.tweakListOptions}
+}

pkg/client/informers/externalversions/flagger/v1alpha1/metrictemplate.go

@@ -0,0 +1,89 @@
+/*
+Copyright The Flagger 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.
+*/
+
+// Code generated by informer-gen. DO NOT EDIT.
+
+package v1alpha1
+
+import (
+	time "time"
+
+	flaggerv1alpha1 "github.com/weaveworks/flagger/pkg/apis/flagger/v1alpha1"
+	versioned "github.com/weaveworks/flagger/pkg/client/clientset/versioned"
+	internalinterfaces "github.com/weaveworks/flagger/pkg/client/informers/externalversions/internalinterfaces"
+	v1alpha1 "github.com/weaveworks/flagger/pkg/client/listers/flagger/v1alpha1"
+	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	runtime "k8s.io/apimachinery/pkg/runtime"
+	watch "k8s.io/apimachinery/pkg/watch"
+	cache "k8s.io/client-go/tools/cache"
+)
+
+// MetricTemplateInformer provides access to a shared informer and lister for
+// MetricTemplates.
+type MetricTemplateInformer interface {
+	Informer() cache.SharedIndexInformer
+	Lister() v1alpha1.MetricTemplateLister
+}
+
+type metricTemplateInformer struct {
+	factory          internalinterfaces.SharedInformerFactory
+	tweakListOptions internalinterfaces.TweakListOptionsFunc
+	namespace        string
+}
+
+// NewMetricTemplateInformer constructs a new informer for MetricTemplate type.
+// Always prefer using an informer factory to get a shared informer instead of getting an independent
+// one. This reduces memory footprint and number of connections to the server.
+func NewMetricTemplateInformer(client versioned.Interface, namespace string, resyncPeriod time.Duration, indexers cache.Indexers) cache.SharedIndexInformer {
+	return NewFilteredMetricTemplateInformer(client, namespace, resyncPeriod, indexers, nil)
+}
+
+// NewFilteredMetricTemplateInformer constructs a new informer for MetricTemplate type.
+// Always prefer using an informer factory to get a shared informer instead of getting an independent
+// one. This reduces memory footprint and number of connections to the server.
+func NewFilteredMetricTemplateInformer(client versioned.Interface, namespace string, resyncPeriod time.Duration, indexers cache.Indexers, tweakListOptions internalinterfaces.TweakListOptionsFunc) cache.SharedIndexInformer {
+	return cache.NewSharedIndexInformer(
+		&cache.ListWatch{
+			ListFunc: func(options v1.ListOptions) (runtime.Object, error) {
+				if tweakListOptions != nil {
+					tweakListOptions(&options)
+				}
+				return client.FlaggerV1alpha1().MetricTemplates(namespace).List(options)
+			},
+			WatchFunc: func(options v1.ListOptions) (watch.Interface, error) {
+				if tweakListOptions != nil {
+					tweakListOptions(&options)
+				}
+				return client.FlaggerV1alpha1().MetricTemplates(namespace).Watch(options)
+			},
+		},
+		&flaggerv1alpha1.MetricTemplate{},
+		resyncPeriod,
+		indexers,
+	)
+}
+
+func (f *metricTemplateInformer) defaultInformer(client versioned.Interface, resyncPeriod time.Duration) cache.SharedIndexInformer {
+	return NewFilteredMetricTemplateInformer(client, f.namespace, resyncPeriod, cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc}, f.tweakListOptions)
+}
+
+func (f *metricTemplateInformer) Informer() cache.SharedIndexInformer {
+	return f.factory.InformerFor(&flaggerv1alpha1.MetricTemplate{}, f.defaultInformer)
+}
+
+func (f *metricTemplateInformer) Lister() v1alpha1.MetricTemplateLister {
+	return v1alpha1.NewMetricTemplateLister(f.Informer().GetIndexer())
+}

pkg/client/informers/externalversions/generic.go

@@ -22,11 +22,12 @@ import (
 	"fmt"
 
 	v1beta1 "github.com/weaveworks/flagger/pkg/apis/appmesh/v1beta1"
+	v1alpha1 "github.com/weaveworks/flagger/pkg/apis/flagger/v1alpha1"
 	v1alpha3 "github.com/weaveworks/flagger/pkg/apis/flagger/v1alpha3"
 	v1 "github.com/weaveworks/flagger/pkg/apis/gloo/v1"
 	istiov1alpha3 "github.com/weaveworks/flagger/pkg/apis/istio/v1alpha3"
 	projectcontourv1 "github.com/weaveworks/flagger/pkg/apis/projectcontour/v1"
-	v1alpha1 "github.com/weaveworks/flagger/pkg/apis/smi/v1alpha1"
+	smiv1alpha1 "github.com/weaveworks/flagger/pkg/apis/smi/v1alpha1"
 	schema "k8s.io/apimachinery/pkg/runtime/schema"
 	cache "k8s.io/client-go/tools/cache"
 )
@@ -65,6 +66,10 @@ func (f *sharedInformerFactory) ForResource(resource schema.GroupVersionResource
 	case v1beta1.SchemeGroupVersion.WithResource("virtualservices"):
 		return &genericInformer{resource: resource.GroupResource(), informer: f.Appmesh().V1beta1().VirtualServices().Informer()}, nil
 
+		// Group=flagger.app, Version=v1alpha1
+	case v1alpha1.SchemeGroupVersion.WithResource("metrictemplates"):
+		return &genericInformer{resource: resource.GroupResource(), informer: f.Flagger().V1alpha1().MetricTemplates().Informer()}, nil
+
 		// Group=flagger.app, Version=v1alpha3
 	case v1alpha3.SchemeGroupVersion.WithResource("canaries"):
 		return &genericInformer{resource: resource.GroupResource(), informer: f.Flagger().V1alpha3().Canaries().Informer()}, nil
@@ -84,7 +89,7 @@ func (f *sharedInformerFactory) ForResource(resource schema.GroupVersionResource
 		return &genericInformer{resource: resource.GroupResource(), informer: f.Projectcontour().V1().HTTPProxies().Informer()}, nil
 
 		// Group=split.smi-spec.io, Version=v1alpha1
-	case v1alpha1.SchemeGroupVersion.WithResource("trafficsplits"):
+	case smiv1alpha1.SchemeGroupVersion.WithResource("trafficsplits"):
 		return &genericInformer{resource: resource.GroupResource(), informer: f.Split().V1alpha1().TrafficSplits().Informer()}, nil
 
 	}

pkg/client/listers/flagger/v1alpha1/expansion_generated.go

@@ -0,0 +1,27 @@
+/*
+Copyright The Flagger 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.
+*/
+
+// Code generated by lister-gen. DO NOT EDIT.
+
+package v1alpha1
+
+// MetricTemplateListerExpansion allows custom methods to be added to
+// MetricTemplateLister.
+type MetricTemplateListerExpansion interface{}
+
+// MetricTemplateNamespaceListerExpansion allows custom methods to be added to
+// MetricTemplateNamespaceLister.
+type MetricTemplateNamespaceListerExpansion interface{}

pkg/client/listers/flagger/v1alpha1/metrictemplate.go

@@ -0,0 +1,94 @@
+/*
+Copyright The Flagger 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.
+*/
+
+// Code generated by lister-gen. DO NOT EDIT.
+
+package v1alpha1
+
+import (
+	v1alpha1 "github.com/weaveworks/flagger/pkg/apis/flagger/v1alpha1"
+	"k8s.io/apimachinery/pkg/api/errors"
+	"k8s.io/apimachinery/pkg/labels"
+	"k8s.io/client-go/tools/cache"
+)
+
+// MetricTemplateLister helps list MetricTemplates.
+type MetricTemplateLister interface {
+	// List lists all MetricTemplates in the indexer.
+	List(selector labels.Selector) (ret []*v1alpha1.MetricTemplate, err error)
+	// MetricTemplates returns an object that can list and get MetricTemplates.
+	MetricTemplates(namespace string) MetricTemplateNamespaceLister
+	MetricTemplateListerExpansion
+}
+
+// metricTemplateLister implements the MetricTemplateLister interface.
+type metricTemplateLister struct {
+	indexer cache.Indexer
+}
+
+// NewMetricTemplateLister returns a new MetricTemplateLister.
+func NewMetricTemplateLister(indexer cache.Indexer) MetricTemplateLister {
+	return &metricTemplateLister{indexer: indexer}
+}
+
+// List lists all MetricTemplates in the indexer.
+func (s *metricTemplateLister) List(selector labels.Selector) (ret []*v1alpha1.MetricTemplate, err error) {
+	err = cache.ListAll(s.indexer, selector, func(m interface{}) {
+		ret = append(ret, m.(*v1alpha1.MetricTemplate))
+	})
+	return ret, err
+}
+
+// MetricTemplates returns an object that can list and get MetricTemplates.
+func (s *metricTemplateLister) MetricTemplates(namespace string) MetricTemplateNamespaceLister {
+	return metricTemplateNamespaceLister{indexer: s.indexer, namespace: namespace}
+}
+
+// MetricTemplateNamespaceLister helps list and get MetricTemplates.
+type MetricTemplateNamespaceLister interface {
+	// List lists all MetricTemplates in the indexer for a given namespace.
+	List(selector labels.Selector) (ret []*v1alpha1.MetricTemplate, err error)
+	// Get retrieves the MetricTemplate from the indexer for a given namespace and name.
+	Get(name string) (*v1alpha1.MetricTemplate, error)
+	MetricTemplateNamespaceListerExpansion
+}
+
+// metricTemplateNamespaceLister implements the MetricTemplateNamespaceLister
+// interface.
+type metricTemplateNamespaceLister struct {
+	indexer   cache.Indexer
+	namespace string
+}
+
+// List lists all MetricTemplates in the indexer for a given namespace.
+func (s metricTemplateNamespaceLister) List(selector labels.Selector) (ret []*v1alpha1.MetricTemplate, err error) {
+	err = cache.ListAllByNamespace(s.indexer, s.namespace, selector, func(m interface{}) {
+		ret = append(ret, m.(*v1alpha1.MetricTemplate))
+	})
+	return ret, err
+}
+
+// Get retrieves the MetricTemplate from the indexer for a given namespace and name.
+func (s metricTemplateNamespaceLister) Get(name string) (*v1alpha1.MetricTemplate, error) {
+	obj, exists, err := s.indexer.GetByKey(s.namespace + "/" + name)
+	if err != nil {
+		return nil, err
+	}
+	if !exists {
+		return nil, errors.NewNotFound(v1alpha1.Resource("metrictemplate"), name)
+	}
+	return obj.(*v1alpha1.MetricTemplate), nil
+}