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Introduce cozystack-controller (#560)
<!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit Based on the comprehensive summary of changes, here are the release notes: - **New Features** - Added a new Kubernetes controller for managing workload monitoring - Introduced telemetry collection capabilities with configurable options - Added new Custom Resource Definitions (CRDs) for Workload and WorkloadMonitor - **Improvements** - Enhanced API infrastructure with new API group and version - Improved deployment configurations for various system components - Added development container and workflow configurations - **Bug Fixes** - Updated import paths to correct domain naming - **Chores** - Updated copyright years - Refined module dependencies - Standardized code linting and testing configurations - **Infrastructure** - Increased `cozystack-api` deployment replicas from 1 to 2 for improved availability <!-- end of auto-generated comment: release notes by coderabbit.ai --> --------- Signed-off-by: Andrei Kvapil <kvapss@gmail.com>
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‎Makefile

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@@ -37,3 +37,6 @@ test:
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make -C packages/core/testing apply
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make -C packages/core/testing test
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make -C packages/core/testing test-applications
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generate:
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hack/update-codegen.sh

‎api/api-rules/cozystack_api_violation_exceptions.list

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API rule violation: list_type_missing,github.com/aenix.io/cozystack/pkg/apis/apps/v1alpha1,ApplicationStatus,Conditions
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API rule violation: list_type_missing,github.com/aenix-io/cozystack/pkg/apis/apps/v1alpha1,ApplicationStatus,Conditions
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API rule violation: names_match,k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1,JSONSchemaProps,Ref
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API rule violation: names_match,k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1,JSONSchemaProps,Schema
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API rule violation: names_match,k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1,JSONSchemaProps,XEmbeddedResource

‎api/v1alpha1/groupversion_info.go

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/*
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Copyright 2025.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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// Package v1alpha1 contains API Schema definitions for the v1alpha1 API group.
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// +kubebuilder:object:generate=true
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// +groupName=cozystack.io
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package v1alpha1
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import (
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"k8s.io/apimachinery/pkg/runtime/schema"
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"sigs.k8s.io/controller-runtime/pkg/scheme"
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)
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var (
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// GroupVersion is group version used to register these objects.
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GroupVersion = schema.GroupVersion{Group: "cozystack.io", Version: "v1alpha1"}
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// SchemeBuilder is used to add go types to the GroupVersionKind scheme.
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SchemeBuilder = &scheme.Builder{GroupVersion: GroupVersion}
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// AddToScheme adds the types in this group-version to the given scheme.
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AddToScheme = SchemeBuilder.AddToScheme
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)

‎api/v1alpha1/workload_types.go

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/*
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Copyright 2025.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package v1alpha1
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import (
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"k8s.io/apimachinery/pkg/api/resource"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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// WorkloadStatus defines the observed state of Workload
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type WorkloadStatus struct {
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// Kind represents the type of workload (redis, postgres, etc.)
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// +required
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Kind string `json:"kind"`
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// Type represents the specific role of the workload (redis, sentinel, etc.)
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// If not specified, defaults to Kind
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// +optional
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Type string `json:"type,omitempty"`
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// Resources specifies the compute resources allocated to this workload
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// +required
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Resources map[string]resource.Quantity `json:"resources"`
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// Operational indicates if all pods of the workload are ready
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// +optional
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Operational bool `json:"operational"`
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}
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// +kubebuilder:object:root=true
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// +kubebuilder:printcolumn:name="Kind",type="string",JSONPath=".status.kind"
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// +kubebuilder:printcolumn:name="Type",type="string",JSONPath=".status.type"
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// +kubebuilder:printcolumn:name="CPU",type="string",JSONPath=".status.resources.cpu"
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// +kubebuilder:printcolumn:name="Memory",type="string",JSONPath=".status.resources.memory"
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// +kubebuilder:printcolumn:name="Operational",type="boolean",JSONPath=`.status.operational`
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// Workload is the Schema for the workloads API
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type Workload struct {
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metav1.TypeMeta `json:",inline"`
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metav1.ObjectMeta `json:"metadata,omitempty"`
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Status WorkloadStatus `json:"status,omitempty"`
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}
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// +kubebuilder:object:root=true
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// WorkloadList contains a list of Workload
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type WorkloadList struct {
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metav1.TypeMeta `json:",inline"`
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metav1.ListMeta `json:"metadata,omitempty"`
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Items []Workload `json:"items"`
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}
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func init() {
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SchemeBuilder.Register(&Workload{}, &WorkloadList{})
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}

‎api/v1alpha1/workloadmonitor_types.go

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package v1alpha1
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import (
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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// WorkloadMonitorSpec defines the desired state of WorkloadMonitor
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type WorkloadMonitorSpec struct {
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// Selector is a label selector to find workloads to monitor
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// +required
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Selector map[string]string `json:"selector"`
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// Kind specifies the kind of the workload
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// +optional
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Kind string `json:"kind,omitempty"`
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// Type specifies the type of the workload
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// +optional
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Type string `json:"type,omitempty"`
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// Version specifies the version of the workload
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// +optional
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Version string `json:"version,omitempty"`
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// MinReplicas specifies the minimum number of replicas that should be available
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// +kubebuilder:validation:Minimum=0
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// +optional
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MinReplicas *int32 `json:"minReplicas,omitempty"`
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// Replicas is the desired number of replicas
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// If not specified, will use observedReplicas as the target
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// +kubebuilder:validation:Minimum=0
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// +optional
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Replicas *int32 `json:"replicas,omitempty"`
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}
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// WorkloadMonitorStatus defines the observed state of WorkloadMonitor
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type WorkloadMonitorStatus struct {
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// Operational indicates if the workload meets all operational requirements
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// +optional
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Operational *bool `json:"operational,omitempty"`
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// AvailableReplicas is the number of ready replicas
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// +optional
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AvailableReplicas int32 `json:"availableReplicas"`
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// ObservedReplicas is the total number of pods observed
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// +optional
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ObservedReplicas int32 `json:"observedReplicas"`
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}
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// +kubebuilder:object:root=true
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// +kubebuilder:subresource:status
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// +kubebuilder:printcolumn:name="Kind",type="string",JSONPath=".spec.kind"
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// +kubebuilder:printcolumn:name="Type",type="string",JSONPath=".spec.type"
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// +kubebuilder:printcolumn:name="Version",type="string",JSONPath=".spec.version"
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// +kubebuilder:printcolumn:name="Replicas",type="integer",JSONPath=".spec.replicas"
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// +kubebuilder:printcolumn:name="MinReplicas",type="integer",JSONPath=".spec.minReplicas"
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// +kubebuilder:printcolumn:name="Available",type="integer",JSONPath=".status.availableReplicas"
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// +kubebuilder:printcolumn:name="Observed",type="integer",JSONPath=".status.observedReplicas"
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// +kubebuilder:printcolumn:name="Operational",type="boolean",JSONPath=".status.operational"
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// WorkloadMonitor is the Schema for the workloadmonitors API
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type WorkloadMonitor struct {
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metav1.TypeMeta `json:",inline"`
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metav1.ObjectMeta `json:"metadata,omitempty"`
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Spec WorkloadMonitorSpec `json:"spec,omitempty"`
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Status WorkloadMonitorStatus `json:"status,omitempty"`
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}
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// +kubebuilder:object:root=true
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// WorkloadMonitorList contains a list of WorkloadMonitor
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type WorkloadMonitorList struct {
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metav1.TypeMeta `json:",inline"`
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metav1.ListMeta `json:"metadata,omitempty"`
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Items []WorkloadMonitor `json:"items"`
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}
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func init() {
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SchemeBuilder.Register(&WorkloadMonitor{}, &WorkloadMonitorList{})
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}
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// GetSelector returns the label selector from metadata
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func (w *WorkloadMonitor) GetSelector() map[string]string {
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return w.Spec.Selector
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}
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// Selector specifies the label selector for workloads
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type Selector map[string]string

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