Add support for pause annotation to chart CRs (#705)

* Add team annotation

* Add support for pause annotation

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project's packages adheres to [Semantic Versioning](http://semver.org/s
 
 ## [Unreleased]
 
+### Added
+
+- Pause Chart CR reconciliation when it has chart-operator.giantswarm.io/paused=true annotation.
+
 ## [2.9.0] - 2021-02-03
 
 ### Added

helm/chart-operator/Chart.yaml

@@ -4,6 +4,8 @@ version: [[ .Version ]]
 appVersion: [[ .AppVersion ]]
 home: https://github.com/giantswarm/chart-operator
 description: A Helm chart for the chart-operator
+annotations:
+  application.giantswarm.io/team: "batman"
 restrictions:
   clusterSingleton: true
   namespaceSingleton: true

pkg/annotation/annotation.go

@@ -3,6 +3,10 @@
 package annotation
 
 const (
+	// ChartOperatorPaused annotation when present prevents chart-operator from
+	// reconciling the resource.
+	ChartOperatorPaused = "chart-operator.giantswarm.io/paused"
+
 	// CordonReason is the name of the annotation that indicates
 	// the reason of why chart-operator should not apply any update on this chart CR.
 	CordonReason = "chart-operator.giantswarm.io/cordon-reason"

service/controller/chart/chart.go

@@ -14,6 +14,7 @@ import (
 	"github.com/spf13/afero"
 	"k8s.io/apimachinery/pkg/runtime"
 
+	"github.com/giantswarm/chart-operator/v2/pkg/annotation"
 	"github.com/giantswarm/chart-operator/v2/pkg/project"
 	"github.com/giantswarm/chart-operator/v2/service/controller/chart/controllercontext"
 )
@@ -91,6 +92,9 @@ func NewChart(config Config) (*Chart, error) {
 			InitCtx:   initCtxFunc,
 			K8sClient: config.K8sClient,
 			Logger:    config.Logger,
+			Pause: map[string]string{
+				annotation.ChartOperatorPaused: "true",
+			},
 			Resources: resources,
 			NewRuntimeObjectFunc: func() runtime.Object {
 				return new(v1alpha1.Chart)