add support for KEDA ScaledObjects via ScaledObjectReconciler

Signed-off-by: Sanskar Jaiswal <sanskar.jaiswal@weave.works>

pkg/client/clientset/versioned/clientset.go

@@ -29,6 +29,7 @@ import (
 	gatewayapiv1alpha2 "github.com/fluxcd/flagger/pkg/client/clientset/versioned/typed/gatewayapi/v1alpha2"
 	gloov1 "github.com/fluxcd/flagger/pkg/client/clientset/versioned/typed/gloo/v1"
 	networkingv1alpha3 "github.com/fluxcd/flagger/pkg/client/clientset/versioned/typed/istio/v1alpha3"
+	kedav1alpha1 "github.com/fluxcd/flagger/pkg/client/clientset/versioned/typed/keda/v1alpha1"
 	kumav1alpha1 "github.com/fluxcd/flagger/pkg/client/clientset/versioned/typed/kuma/v1alpha1"
 	projectcontourv1 "github.com/fluxcd/flagger/pkg/client/clientset/versioned/typed/projectcontour/v1"
 	splitv1alpha1 "github.com/fluxcd/flagger/pkg/client/clientset/versioned/typed/smi/v1alpha1"
@@ -49,6 +50,7 @@ type Interface interface {
 	GatewayapiV1alpha2() gatewayapiv1alpha2.GatewayapiV1alpha2Interface
 	GlooV1() gloov1.GlooV1Interface
 	NetworkingV1alpha3() networkingv1alpha3.NetworkingV1alpha3Interface
+	KedaV1alpha1() kedav1alpha1.KedaV1alpha1Interface
 	KumaV1alpha1() kumav1alpha1.KumaV1alpha1Interface
 	ProjectcontourV1() projectcontourv1.ProjectcontourV1Interface
 	SplitV1alpha1() splitv1alpha1.SplitV1alpha1Interface
@@ -68,6 +70,7 @@ type Clientset struct {
 	gatewayapiV1alpha2 *gatewayapiv1alpha2.GatewayapiV1alpha2Client
 	glooV1             *gloov1.GlooV1Client
 	networkingV1alpha3 *networkingv1alpha3.NetworkingV1alpha3Client
+	kedaV1alpha1       *kedav1alpha1.KedaV1alpha1Client
 	kumaV1alpha1       *kumav1alpha1.KumaV1alpha1Client
 	projectcontourV1   *projectcontourv1.ProjectcontourV1Client
 	splitV1alpha1      *splitv1alpha1.SplitV1alpha1Client
@@ -111,6 +114,11 @@ func (c *Clientset) NetworkingV1alpha3() networkingv1alpha3.NetworkingV1alpha3In
 	return c.networkingV1alpha3
 }
 
+// KedaV1alpha1 retrieves the KedaV1alpha1Client
+func (c *Clientset) KedaV1alpha1() kedav1alpha1.KedaV1alpha1Interface {
+	return c.kedaV1alpha1
+}
+
 // KumaV1alpha1 retrieves the KumaV1alpha1Client
 func (c *Clientset) KumaV1alpha1() kumav1alpha1.KumaV1alpha1Interface {
 	return c.kumaV1alpha1
@@ -213,6 +221,10 @@ func NewForConfigAndClient(c *rest.Config, httpClient *http.Client) (*Clientset,
 	if err != nil {
 		return nil, err
 	}
+	cs.kedaV1alpha1, err = kedav1alpha1.NewForConfigAndClient(&configShallowCopy, httpClient)
+	if err != nil {
+		return nil, err
+	}
 	cs.kumaV1alpha1, err = kumav1alpha1.NewForConfigAndClient(&configShallowCopy, httpClient)
 	if err != nil {
 		return nil, err
@@ -265,6 +277,7 @@ func New(c rest.Interface) *Clientset {
 	cs.gatewayapiV1alpha2 = gatewayapiv1alpha2.New(c)
 	cs.glooV1 = gloov1.New(c)
 	cs.networkingV1alpha3 = networkingv1alpha3.New(c)
+	cs.kedaV1alpha1 = kedav1alpha1.New(c)
 	cs.kumaV1alpha1 = kumav1alpha1.New(c)
 	cs.projectcontourV1 = projectcontourv1.New(c)
 	cs.splitV1alpha1 = splitv1alpha1.New(c)

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

@@ -34,6 +34,8 @@ import (
 	fakegloov1 "github.com/fluxcd/flagger/pkg/client/clientset/versioned/typed/gloo/v1/fake"
 	networkingv1alpha3 "github.com/fluxcd/flagger/pkg/client/clientset/versioned/typed/istio/v1alpha3"
 	fakenetworkingv1alpha3 "github.com/fluxcd/flagger/pkg/client/clientset/versioned/typed/istio/v1alpha3/fake"
+	kedav1alpha1 "github.com/fluxcd/flagger/pkg/client/clientset/versioned/typed/keda/v1alpha1"
+	fakekedav1alpha1 "github.com/fluxcd/flagger/pkg/client/clientset/versioned/typed/keda/v1alpha1/fake"
 	kumav1alpha1 "github.com/fluxcd/flagger/pkg/client/clientset/versioned/typed/kuma/v1alpha1"
 	fakekumav1alpha1 "github.com/fluxcd/flagger/pkg/client/clientset/versioned/typed/kuma/v1alpha1/fake"
 	projectcontourv1 "github.com/fluxcd/flagger/pkg/client/clientset/versioned/typed/projectcontour/v1"
@@ -138,6 +140,11 @@ func (c *Clientset) NetworkingV1alpha3() networkingv1alpha3.NetworkingV1alpha3In
 	return &fakenetworkingv1alpha3.FakeNetworkingV1alpha3{Fake: &c.Fake}
 }
 
+// KedaV1alpha1 retrieves the KedaV1alpha1Client
+func (c *Clientset) KedaV1alpha1() kedav1alpha1.KedaV1alpha1Interface {
+	return &fakekedav1alpha1.FakeKedaV1alpha1{Fake: &c.Fake}
+}
+
 // KumaV1alpha1 retrieves the KumaV1alpha1Client
 func (c *Clientset) KumaV1alpha1() kumav1alpha1.KumaV1alpha1Interface {
 	return &fakekumav1alpha1.FakeKumaV1alpha1{Fake: &c.Fake}

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

@@ -26,6 +26,7 @@ import (
 	gatewayv1 "github.com/fluxcd/flagger/pkg/apis/gloo/gateway/v1"
 	gloov1 "github.com/fluxcd/flagger/pkg/apis/gloo/gloo/v1"
 	networkingv1alpha3 "github.com/fluxcd/flagger/pkg/apis/istio/v1alpha3"
+	kedav1alpha1 "github.com/fluxcd/flagger/pkg/apis/keda/v1alpha1"
 	kumav1alpha1 "github.com/fluxcd/flagger/pkg/apis/kuma/v1alpha1"
 	projectcontourv1 "github.com/fluxcd/flagger/pkg/apis/projectcontour/v1"
 	splitv1alpha1 "github.com/fluxcd/flagger/pkg/apis/smi/v1alpha1"
@@ -50,6 +51,7 @@ var localSchemeBuilder = runtime.SchemeBuilder{
 	gatewayapiv1alpha2.AddToScheme,
 	gloov1.AddToScheme,
 	networkingv1alpha3.AddToScheme,
+	kedav1alpha1.AddToScheme,
 	kumav1alpha1.AddToScheme,
 	projectcontourv1.AddToScheme,
 	splitv1alpha1.AddToScheme,

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

@@ -26,6 +26,7 @@ import (
 	gatewayv1 "github.com/fluxcd/flagger/pkg/apis/gloo/gateway/v1"
 	gloov1 "github.com/fluxcd/flagger/pkg/apis/gloo/gloo/v1"
 	networkingv1alpha3 "github.com/fluxcd/flagger/pkg/apis/istio/v1alpha3"
+	kedav1alpha1 "github.com/fluxcd/flagger/pkg/apis/keda/v1alpha1"
 	kumav1alpha1 "github.com/fluxcd/flagger/pkg/apis/kuma/v1alpha1"
 	projectcontourv1 "github.com/fluxcd/flagger/pkg/apis/projectcontour/v1"
 	splitv1alpha1 "github.com/fluxcd/flagger/pkg/apis/smi/v1alpha1"
@@ -50,6 +51,7 @@ var localSchemeBuilder = runtime.SchemeBuilder{
 	gatewayapiv1alpha2.AddToScheme,
 	gloov1.AddToScheme,
 	networkingv1alpha3.AddToScheme,
+	kedav1alpha1.AddToScheme,
 	kumav1alpha1.AddToScheme,
 	projectcontourv1.AddToScheme,
 	splitv1alpha1.AddToScheme,

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

@@ -0,0 +1,20 @@
+/*
+Copyright 2020 The Flux 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/keda/v1alpha1/fake/doc.go

@@ -0,0 +1,20 @@
+/*
+Copyright 2020 The Flux 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/keda/v1alpha1/fake/fake_keda_client.go

@@ -0,0 +1,40 @@
+/*
+Copyright 2020 The Flux 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/fluxcd/flagger/pkg/client/clientset/versioned/typed/keda/v1alpha1"
+	rest "k8s.io/client-go/rest"
+	testing "k8s.io/client-go/testing"
+)
+
+type FakeKedaV1alpha1 struct {
+	*testing.Fake
+}
+
+func (c *FakeKedaV1alpha1) ScaledObjects(namespace string) v1alpha1.ScaledObjectInterface {
+	return &FakeScaledObjects{c, namespace}
+}
+
+// RESTClient returns a RESTClient that is used to communicate
+// with API server by this client implementation.
+func (c *FakeKedaV1alpha1) RESTClient() rest.Interface {
+	var ret *rest.RESTClient
+	return ret
+}

pkg/client/clientset/versioned/typed/keda/v1alpha1/fake/fake_scaledobject.go

@@ -0,0 +1,142 @@
+/*
+Copyright 2020 The Flux 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 (
+	"context"
+
+	v1alpha1 "github.com/fluxcd/flagger/pkg/apis/keda/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"
+)
+
+// FakeScaledObjects implements ScaledObjectInterface
+type FakeScaledObjects struct {
+	Fake *FakeKedaV1alpha1
+	ns   string
+}
+
+var scaledobjectsResource = schema.GroupVersionResource{Group: "keda.sh", Version: "v1alpha1", Resource: "scaledobjects"}
+
+var scaledobjectsKind = schema.GroupVersionKind{Group: "keda.sh", Version: "v1alpha1", Kind: "ScaledObject"}
+
+// Get takes name of the scaledObject, and returns the corresponding scaledObject object, and an error if there is any.
+func (c *FakeScaledObjects) Get(ctx context.Context, name string, options v1.GetOptions) (result *v1alpha1.ScaledObject, err error) {
+	obj, err := c.Fake.
+		Invokes(testing.NewGetAction(scaledobjectsResource, c.ns, name), &v1alpha1.ScaledObject{})
+
+	if obj == nil {
+		return nil, err
+	}
+	return obj.(*v1alpha1.ScaledObject), err
+}
+
+// List takes label and field selectors, and returns the list of ScaledObjects that match those selectors.
+func (c *FakeScaledObjects) List(ctx context.Context, opts v1.ListOptions) (result *v1alpha1.ScaledObjectList, err error) {
+	obj, err := c.Fake.
+		Invokes(testing.NewListAction(scaledobjectsResource, scaledobjectsKind, c.ns, opts), &v1alpha1.ScaledObjectList{})
+
+	if obj == nil {
+		return nil, err
+	}
+
+	label, _, _ := testing.ExtractFromListOptions(opts)
+	if label == nil {
+		label = labels.Everything()
+	}
+	list := &v1alpha1.ScaledObjectList{ListMeta: obj.(*v1alpha1.ScaledObjectList).ListMeta}
+	for _, item := range obj.(*v1alpha1.ScaledObjectList).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 scaledObjects.
+func (c *FakeScaledObjects) Watch(ctx context.Context, opts v1.ListOptions) (watch.Interface, error) {
+	return c.Fake.
+		InvokesWatch(testing.NewWatchAction(scaledobjectsResource, c.ns, opts))
+
+}
+
+// Create takes the representation of a scaledObject and creates it.  Returns the server's representation of the scaledObject, and an error, if there is any.
+func (c *FakeScaledObjects) Create(ctx context.Context, scaledObject *v1alpha1.ScaledObject, opts v1.CreateOptions) (result *v1alpha1.ScaledObject, err error) {
+	obj, err := c.Fake.
+		Invokes(testing.NewCreateAction(scaledobjectsResource, c.ns, scaledObject), &v1alpha1.ScaledObject{})
+
+	if obj == nil {
+		return nil, err
+	}
+	return obj.(*v1alpha1.ScaledObject), err
+}
+
+// Update takes the representation of a scaledObject and updates it. Returns the server's representation of the scaledObject, and an error, if there is any.
+func (c *FakeScaledObjects) Update(ctx context.Context, scaledObject *v1alpha1.ScaledObject, opts v1.UpdateOptions) (result *v1alpha1.ScaledObject, err error) {
+	obj, err := c.Fake.
+		Invokes(testing.NewUpdateAction(scaledobjectsResource, c.ns, scaledObject), &v1alpha1.ScaledObject{})
+
+	if obj == nil {
+		return nil, err
+	}
+	return obj.(*v1alpha1.ScaledObject), 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 *FakeScaledObjects) UpdateStatus(ctx context.Context, scaledObject *v1alpha1.ScaledObject, opts v1.UpdateOptions) (*v1alpha1.ScaledObject, error) {
+	obj, err := c.Fake.
+		Invokes(testing.NewUpdateSubresourceAction(scaledobjectsResource, "status", c.ns, scaledObject), &v1alpha1.ScaledObject{})
+
+	if obj == nil {
+		return nil, err
+	}
+	return obj.(*v1alpha1.ScaledObject), err
+}
+
+// Delete takes name of the scaledObject and deletes it. Returns an error if one occurs.
+func (c *FakeScaledObjects) Delete(ctx context.Context, name string, opts v1.DeleteOptions) error {
+	_, err := c.Fake.
+		Invokes(testing.NewDeleteActionWithOptions(scaledobjectsResource, c.ns, name, opts), &v1alpha1.ScaledObject{})
+
+	return err
+}
+
+// DeleteCollection deletes a collection of objects.
+func (c *FakeScaledObjects) DeleteCollection(ctx context.Context, opts v1.DeleteOptions, listOpts v1.ListOptions) error {
+	action := testing.NewDeleteCollectionAction(scaledobjectsResource, c.ns, listOpts)
+
+	_, err := c.Fake.Invokes(action, &v1alpha1.ScaledObjectList{})
+	return err
+}
+
+// Patch applies the patch and returns the patched scaledObject.
+func (c *FakeScaledObjects) Patch(ctx context.Context, name string, pt types.PatchType, data []byte, opts v1.PatchOptions, subresources ...string) (result *v1alpha1.ScaledObject, err error) {
+	obj, err := c.Fake.
+		Invokes(testing.NewPatchSubresourceAction(scaledobjectsResource, c.ns, name, pt, data, subresources...), &v1alpha1.ScaledObject{})
+
+	if obj == nil {
+		return nil, err
+	}
+	return obj.(*v1alpha1.ScaledObject), err
+}

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

@@ -0,0 +1,21 @@
+/*
+Copyright 2020 The Flux 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 ScaledObjectExpansion interface{}

pkg/client/clientset/versioned/typed/keda/v1alpha1/keda_client.go

@@ -0,0 +1,107 @@
+/*
+Copyright 2020 The Flux 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 (
+	"net/http"
+
+	v1alpha1 "github.com/fluxcd/flagger/pkg/apis/keda/v1alpha1"
+	"github.com/fluxcd/flagger/pkg/client/clientset/versioned/scheme"
+	rest "k8s.io/client-go/rest"
+)
+
+type KedaV1alpha1Interface interface {
+	RESTClient() rest.Interface
+	ScaledObjectsGetter
+}
+
+// KedaV1alpha1Client is used to interact with features provided by the keda.sh group.
+type KedaV1alpha1Client struct {
+	restClient rest.Interface
+}
+
+func (c *KedaV1alpha1Client) ScaledObjects(namespace string) ScaledObjectInterface {
+	return newScaledObjects(c, namespace)
+}
+
+// NewForConfig creates a new KedaV1alpha1Client for the given config.
+// NewForConfig is equivalent to NewForConfigAndClient(c, httpClient),
+// where httpClient was generated with rest.HTTPClientFor(c).
+func NewForConfig(c *rest.Config) (*KedaV1alpha1Client, error) {
+	config := *c
+	if err := setConfigDefaults(&config); err != nil {
+		return nil, err
+	}
+	httpClient, err := rest.HTTPClientFor(&config)
+	if err != nil {
+		return nil, err
+	}
+	return NewForConfigAndClient(&config, httpClient)
+}
+
+// NewForConfigAndClient creates a new KedaV1alpha1Client for the given config and http client.
+// Note the http client provided takes precedence over the configured transport values.
+func NewForConfigAndClient(c *rest.Config, h *http.Client) (*KedaV1alpha1Client, error) {
+	config := *c
+	if err := setConfigDefaults(&config); err != nil {
+		return nil, err
+	}
+	client, err := rest.RESTClientForConfigAndClient(&config, h)
+	if err != nil {
+		return nil, err
+	}
+	return &KedaV1alpha1Client{client}, nil
+}
+
+// NewForConfigOrDie creates a new KedaV1alpha1Client for the given config and
+// panics if there is an error in the config.
+func NewForConfigOrDie(c *rest.Config) *KedaV1alpha1Client {
+	client, err := NewForConfig(c)
+	if err != nil {
+		panic(err)
+	}
+	return client
+}
+
+// New creates a new KedaV1alpha1Client for the given RESTClient.
+func New(c rest.Interface) *KedaV1alpha1Client {
+	return &KedaV1alpha1Client{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 *KedaV1alpha1Client) RESTClient() rest.Interface {
+	if c == nil {
+		return nil
+	}
+	return c.restClient
+}

pkg/client/clientset/versioned/typed/keda/v1alpha1/scaledobject.go

@@ -0,0 +1,195 @@
+/*
+Copyright 2020 The Flux 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 (
+	"context"
+	"time"
+
+	v1alpha1 "github.com/fluxcd/flagger/pkg/apis/keda/v1alpha1"
+	scheme "github.com/fluxcd/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"
+)
+
+// ScaledObjectsGetter has a method to return a ScaledObjectInterface.
+// A group's client should implement this interface.
+type ScaledObjectsGetter interface {
+	ScaledObjects(namespace string) ScaledObjectInterface
+}
+
+// ScaledObjectInterface has methods to work with ScaledObject resources.
+type ScaledObjectInterface interface {
+	Create(ctx context.Context, scaledObject *v1alpha1.ScaledObject, opts v1.CreateOptions) (*v1alpha1.ScaledObject, error)
+	Update(ctx context.Context, scaledObject *v1alpha1.ScaledObject, opts v1.UpdateOptions) (*v1alpha1.ScaledObject, error)
+	UpdateStatus(ctx context.Context, scaledObject *v1alpha1.ScaledObject, opts v1.UpdateOptions) (*v1alpha1.ScaledObject, error)
+	Delete(ctx context.Context, name string, opts v1.DeleteOptions) error
+	DeleteCollection(ctx context.Context, opts v1.DeleteOptions, listOpts v1.ListOptions) error
+	Get(ctx context.Context, name string, opts v1.GetOptions) (*v1alpha1.ScaledObject, error)
+	List(ctx context.Context, opts v1.ListOptions) (*v1alpha1.ScaledObjectList, error)
+	Watch(ctx context.Context, opts v1.ListOptions) (watch.Interface, error)
+	Patch(ctx context.Context, name string, pt types.PatchType, data []byte, opts v1.PatchOptions, subresources ...string) (result *v1alpha1.ScaledObject, err error)
+	ScaledObjectExpansion
+}
+
+// scaledObjects implements ScaledObjectInterface
+type scaledObjects struct {
+	client rest.Interface
+	ns     string
+}
+
+// newScaledObjects returns a ScaledObjects
+func newScaledObjects(c *KedaV1alpha1Client, namespace string) *scaledObjects {
+	return &scaledObjects{
+		client: c.RESTClient(),
+		ns:     namespace,
+	}
+}
+
+// Get takes name of the scaledObject, and returns the corresponding scaledObject object, and an error if there is any.
+func (c *scaledObjects) Get(ctx context.Context, name string, options v1.GetOptions) (result *v1alpha1.ScaledObject, err error) {
+	result = &v1alpha1.ScaledObject{}
+	err = c.client.Get().
+		Namespace(c.ns).
+		Resource("scaledobjects").
+		Name(name).
+		VersionedParams(&options, scheme.ParameterCodec).
+		Do(ctx).
+		Into(result)
+	return
+}
+
+// List takes label and field selectors, and returns the list of ScaledObjects that match those selectors.
+func (c *scaledObjects) List(ctx context.Context, opts v1.ListOptions) (result *v1alpha1.ScaledObjectList, err error) {
+	var timeout time.Duration
+	if opts.TimeoutSeconds != nil {
+		timeout = time.Duration(*opts.TimeoutSeconds) * time.Second
+	}
+	result = &v1alpha1.ScaledObjectList{}
+	err = c.client.Get().
+		Namespace(c.ns).
+		Resource("scaledobjects").
+		VersionedParams(&opts, scheme.ParameterCodec).
+		Timeout(timeout).
+		Do(ctx).
+		Into(result)
+	return
+}
+
+// Watch returns a watch.Interface that watches the requested scaledObjects.
+func (c *scaledObjects) Watch(ctx context.Context, 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("scaledobjects").
+		VersionedParams(&opts, scheme.ParameterCodec).
+		Timeout(timeout).
+		Watch(ctx)
+}
+
+// Create takes the representation of a scaledObject and creates it.  Returns the server's representation of the scaledObject, and an error, if there is any.
+func (c *scaledObjects) Create(ctx context.Context, scaledObject *v1alpha1.ScaledObject, opts v1.CreateOptions) (result *v1alpha1.ScaledObject, err error) {
+	result = &v1alpha1.ScaledObject{}
+	err = c.client.Post().
+		Namespace(c.ns).
+		Resource("scaledobjects").
+		VersionedParams(&opts, scheme.ParameterCodec).
+		Body(scaledObject).
+		Do(ctx).
+		Into(result)
+	return
+}
+
+// Update takes the representation of a scaledObject and updates it. Returns the server's representation of the scaledObject, and an error, if there is any.
+func (c *scaledObjects) Update(ctx context.Context, scaledObject *v1alpha1.ScaledObject, opts v1.UpdateOptions) (result *v1alpha1.ScaledObject, err error) {
+	result = &v1alpha1.ScaledObject{}
+	err = c.client.Put().
+		Namespace(c.ns).
+		Resource("scaledobjects").
+		Name(scaledObject.Name).
+		VersionedParams(&opts, scheme.ParameterCodec).
+		Body(scaledObject).
+		Do(ctx).
+		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 *scaledObjects) UpdateStatus(ctx context.Context, scaledObject *v1alpha1.ScaledObject, opts v1.UpdateOptions) (result *v1alpha1.ScaledObject, err error) {
+	result = &v1alpha1.ScaledObject{}
+	err = c.client.Put().
+		Namespace(c.ns).
+		Resource("scaledobjects").
+		Name(scaledObject.Name).
+		SubResource("status").
+		VersionedParams(&opts, scheme.ParameterCodec).
+		Body(scaledObject).
+		Do(ctx).
+		Into(result)
+	return
+}
+
+// Delete takes name of the scaledObject and deletes it. Returns an error if one occurs.
+func (c *scaledObjects) Delete(ctx context.Context, name string, opts v1.DeleteOptions) error {
+	return c.client.Delete().
+		Namespace(c.ns).
+		Resource("scaledobjects").
+		Name(name).
+		Body(&opts).
+		Do(ctx).
+		Error()
+}
+
+// DeleteCollection deletes a collection of objects.
+func (c *scaledObjects) DeleteCollection(ctx context.Context, opts v1.DeleteOptions, listOpts v1.ListOptions) error {
+	var timeout time.Duration
+	if listOpts.TimeoutSeconds != nil {
+		timeout = time.Duration(*listOpts.TimeoutSeconds) * time.Second
+	}
+	return c.client.Delete().
+		Namespace(c.ns).
+		Resource("scaledobjects").
+		VersionedParams(&listOpts, scheme.ParameterCodec).
+		Timeout(timeout).
+		Body(&opts).
+		Do(ctx).
+		Error()
+}
+
+// Patch applies the patch and returns the patched scaledObject.
+func (c *scaledObjects) Patch(ctx context.Context, name string, pt types.PatchType, data []byte, opts v1.PatchOptions, subresources ...string) (result *v1alpha1.ScaledObject, err error) {
+	result = &v1alpha1.ScaledObject{}
+	err = c.client.Patch(pt).
+		Namespace(c.ns).
+		Resource("scaledobjects").
+		Name(name).
+		SubResource(subresources...).
+		VersionedParams(&opts, scheme.ParameterCodec).
+		Body(data).
+		Do(ctx).
+		Into(result)
+	return
+}

pkg/client/informers/externalversions/factory.go

@@ -31,6 +31,7 @@ import (
 	gloo "github.com/fluxcd/flagger/pkg/client/informers/externalversions/gloo"
 	internalinterfaces "github.com/fluxcd/flagger/pkg/client/informers/externalversions/internalinterfaces"
 	istio "github.com/fluxcd/flagger/pkg/client/informers/externalversions/istio"
+	keda "github.com/fluxcd/flagger/pkg/client/informers/externalversions/keda"
 	kuma "github.com/fluxcd/flagger/pkg/client/informers/externalversions/kuma"
 	projectcontour "github.com/fluxcd/flagger/pkg/client/informers/externalversions/projectcontour"
 	smi "github.com/fluxcd/flagger/pkg/client/informers/externalversions/smi"
@@ -187,6 +188,7 @@ type SharedInformerFactory interface {
 	Gatewayapi() gatewayapi.Interface
 	Gloo() gloo.Interface
 	Networking() istio.Interface
+	Keda() keda.Interface
 	Kuma() kuma.Interface
 	Projectcontour() projectcontour.Interface
 	Split() smi.Interface
@@ -217,6 +219,10 @@ func (f *sharedInformerFactory) Networking() istio.Interface {
 	return istio.New(f, f.namespace, f.tweakListOptions)
 }
 
+func (f *sharedInformerFactory) Keda() keda.Interface {
+	return keda.New(f, f.namespace, f.tweakListOptions)
+}
+
 func (f *sharedInformerFactory) Kuma() kuma.Interface {
 	return kuma.New(f, f.namespace, f.tweakListOptions)
 }

pkg/client/informers/externalversions/generic.go

@@ -28,7 +28,8 @@ import (
 	v1 "github.com/fluxcd/flagger/pkg/apis/gloo/gateway/v1"
 	gloov1 "github.com/fluxcd/flagger/pkg/apis/gloo/gloo/v1"
 	v1alpha3 "github.com/fluxcd/flagger/pkg/apis/istio/v1alpha3"
-	v1alpha1 "github.com/fluxcd/flagger/pkg/apis/kuma/v1alpha1"
+	v1alpha1 "github.com/fluxcd/flagger/pkg/apis/keda/v1alpha1"
+	kumav1alpha1 "github.com/fluxcd/flagger/pkg/apis/kuma/v1alpha1"
 	projectcontourv1 "github.com/fluxcd/flagger/pkg/apis/projectcontour/v1"
 	smiv1alpha1 "github.com/fluxcd/flagger/pkg/apis/smi/v1alpha1"
 	smiv1alpha2 "github.com/fluxcd/flagger/pkg/apis/smi/v1alpha2"
@@ -100,8 +101,12 @@ func (f *sharedInformerFactory) ForResource(resource schema.GroupVersionResource
 	case gloov1.SchemeGroupVersion.WithResource("upstreams"):
 		return &genericInformer{resource: resource.GroupResource(), informer: f.Gloo().V1().Upstreams().Informer()}, nil
 
+		// Group=keda.sh, Version=v1alpha1
+	case v1alpha1.SchemeGroupVersion.WithResource("scaledobjects"):
+		return &genericInformer{resource: resource.GroupResource(), informer: f.Keda().V1alpha1().ScaledObjects().Informer()}, nil
+
 		// Group=kuma.io, Version=v1alpha1
-	case v1alpha1.SchemeGroupVersion.WithResource("trafficroutes"):
+	case kumav1alpha1.SchemeGroupVersion.WithResource("trafficroutes"):
 		return &genericInformer{resource: resource.GroupResource(), informer: f.Kuma().V1alpha1().TrafficRoutes().Informer()}, nil
 
 		// Group=networking.istio.io, Version=v1alpha3

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

@@ -0,0 +1,46 @@
+/*
+Copyright 2020 The Flux 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 keda
+
+import (
+	internalinterfaces "github.com/fluxcd/flagger/pkg/client/informers/externalversions/internalinterfaces"
+	v1alpha1 "github.com/fluxcd/flagger/pkg/client/informers/externalversions/keda/v1alpha1"
+)
+
+// Interface provides access to each of this group's versions.
+type Interface interface {
+	// V1alpha1 provides access to shared informers for resources in V1alpha1.
+	V1alpha1() v1alpha1.Interface
+}
+
+type group 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 &group{factory: f, namespace: namespace, tweakListOptions: 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/keda/v1alpha1/interface.go

@@ -0,0 +1,45 @@
+/*
+Copyright 2020 The Flux 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/fluxcd/flagger/pkg/client/informers/externalversions/internalinterfaces"
+)
+
+// Interface provides access to all the informers in this group version.
+type Interface interface {
+	// ScaledObjects returns a ScaledObjectInformer.
+	ScaledObjects() ScaledObjectInformer
+}
+
+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}
+}
+
+// ScaledObjects returns a ScaledObjectInformer.
+func (v *version) ScaledObjects() ScaledObjectInformer {
+	return &scaledObjectInformer{factory: v.factory, namespace: v.namespace, tweakListOptions: v.tweakListOptions}
+}

pkg/client/informers/externalversions/keda/v1alpha1/scaledobject.go

@@ -0,0 +1,90 @@
+/*
+Copyright 2020 The Flux 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 (
+	"context"
+	time "time"
+
+	kedav1alpha1 "github.com/fluxcd/flagger/pkg/apis/keda/v1alpha1"
+	versioned "github.com/fluxcd/flagger/pkg/client/clientset/versioned"
+	internalinterfaces "github.com/fluxcd/flagger/pkg/client/informers/externalversions/internalinterfaces"
+	v1alpha1 "github.com/fluxcd/flagger/pkg/client/listers/keda/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"
+)
+
+// ScaledObjectInformer provides access to a shared informer and lister for
+// ScaledObjects.
+type ScaledObjectInformer interface {
+	Informer() cache.SharedIndexInformer
+	Lister() v1alpha1.ScaledObjectLister
+}
+
+type scaledObjectInformer struct {
+	factory          internalinterfaces.SharedInformerFactory
+	tweakListOptions internalinterfaces.TweakListOptionsFunc
+	namespace        string
+}
+
+// NewScaledObjectInformer constructs a new informer for ScaledObject 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 NewScaledObjectInformer(client versioned.Interface, namespace string, resyncPeriod time.Duration, indexers cache.Indexers) cache.SharedIndexInformer {
+	return NewFilteredScaledObjectInformer(client, namespace, resyncPeriod, indexers, nil)
+}
+
+// NewFilteredScaledObjectInformer constructs a new informer for ScaledObject 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 NewFilteredScaledObjectInformer(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.KedaV1alpha1().ScaledObjects(namespace).List(context.TODO(), options)
+			},
+			WatchFunc: func(options v1.ListOptions) (watch.Interface, error) {
+				if tweakListOptions != nil {
+					tweakListOptions(&options)
+				}
+				return client.KedaV1alpha1().ScaledObjects(namespace).Watch(context.TODO(), options)
+			},
+		},
+		&kedav1alpha1.ScaledObject{},
+		resyncPeriod,
+		indexers,
+	)
+}
+
+func (f *scaledObjectInformer) defaultInformer(client versioned.Interface, resyncPeriod time.Duration) cache.SharedIndexInformer {
+	return NewFilteredScaledObjectInformer(client, f.namespace, resyncPeriod, cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc}, f.tweakListOptions)
+}
+
+func (f *scaledObjectInformer) Informer() cache.SharedIndexInformer {
+	return f.factory.InformerFor(&kedav1alpha1.ScaledObject{}, f.defaultInformer)
+}
+
+func (f *scaledObjectInformer) Lister() v1alpha1.ScaledObjectLister {
+	return v1alpha1.NewScaledObjectLister(f.Informer().GetIndexer())
+}

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

@@ -0,0 +1,27 @@
+/*
+Copyright 2020 The Flux 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
+
+// ScaledObjectListerExpansion allows custom methods to be added to
+// ScaledObjectLister.
+type ScaledObjectListerExpansion interface{}
+
+// ScaledObjectNamespaceListerExpansion allows custom methods to be added to
+// ScaledObjectNamespaceLister.
+type ScaledObjectNamespaceListerExpansion interface{}

pkg/client/listers/keda/v1alpha1/scaledobject.go

@@ -0,0 +1,99 @@
+/*
+Copyright 2020 The Flux 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/fluxcd/flagger/pkg/apis/keda/v1alpha1"
+	"k8s.io/apimachinery/pkg/api/errors"
+	"k8s.io/apimachinery/pkg/labels"
+	"k8s.io/client-go/tools/cache"
+)
+
+// ScaledObjectLister helps list ScaledObjects.
+// All objects returned here must be treated as read-only.
+type ScaledObjectLister interface {
+	// List lists all ScaledObjects in the indexer.
+	// Objects returned here must be treated as read-only.
+	List(selector labels.Selector) (ret []*v1alpha1.ScaledObject, err error)
+	// ScaledObjects returns an object that can list and get ScaledObjects.
+	ScaledObjects(namespace string) ScaledObjectNamespaceLister
+	ScaledObjectListerExpansion
+}
+
+// scaledObjectLister implements the ScaledObjectLister interface.
+type scaledObjectLister struct {
+	indexer cache.Indexer
+}
+
+// NewScaledObjectLister returns a new ScaledObjectLister.
+func NewScaledObjectLister(indexer cache.Indexer) ScaledObjectLister {
+	return &scaledObjectLister{indexer: indexer}
+}
+
+// List lists all ScaledObjects in the indexer.
+func (s *scaledObjectLister) List(selector labels.Selector) (ret []*v1alpha1.ScaledObject, err error) {
+	err = cache.ListAll(s.indexer, selector, func(m interface{}) {
+		ret = append(ret, m.(*v1alpha1.ScaledObject))
+	})
+	return ret, err
+}
+
+// ScaledObjects returns an object that can list and get ScaledObjects.
+func (s *scaledObjectLister) ScaledObjects(namespace string) ScaledObjectNamespaceLister {
+	return scaledObjectNamespaceLister{indexer: s.indexer, namespace: namespace}
+}
+
+// ScaledObjectNamespaceLister helps list and get ScaledObjects.
+// All objects returned here must be treated as read-only.
+type ScaledObjectNamespaceLister interface {
+	// List lists all ScaledObjects in the indexer for a given namespace.
+	// Objects returned here must be treated as read-only.
+	List(selector labels.Selector) (ret []*v1alpha1.ScaledObject, err error)
+	// Get retrieves the ScaledObject from the indexer for a given namespace and name.
+	// Objects returned here must be treated as read-only.
+	Get(name string) (*v1alpha1.ScaledObject, error)
+	ScaledObjectNamespaceListerExpansion
+}
+
+// scaledObjectNamespaceLister implements the ScaledObjectNamespaceLister
+// interface.
+type scaledObjectNamespaceLister struct {
+	indexer   cache.Indexer
+	namespace string
+}
+
+// List lists all ScaledObjects in the indexer for a given namespace.
+func (s scaledObjectNamespaceLister) List(selector labels.Selector) (ret []*v1alpha1.ScaledObject, err error) {
+	err = cache.ListAllByNamespace(s.indexer, s.namespace, selector, func(m interface{}) {
+		ret = append(ret, m.(*v1alpha1.ScaledObject))
+	})
+	return ret, err
+}
+
+// Get retrieves the ScaledObject from the indexer for a given namespace and name.
+func (s scaledObjectNamespaceLister) Get(name string) (*v1alpha1.ScaledObject, error) {
+	obj, exists, err := s.indexer.GetByKey(s.namespace + "/" + name)
+	if err != nil {
+		return nil, err
+	}
+	if !exists {
+		return nil, errors.NewNotFound(v1alpha1.Resource("scaledobject"), name)
+	}
+	return obj.(*v1alpha1.ScaledObject), nil
+}