Create ConditionalController helper to enable wait and watch

Author: kevindelgado

go.mod

@@ -3,27 +3,39 @@ module sigs.k8s.io/controller-runtime
 go 1.15
 
 require (
+	github.com/coreos/go-etcd v2.0.0+incompatible // indirect
+	github.com/cpuguy83/go-md2man v1.0.10 // indirect
+	github.com/docker/docker v0.7.3-0.20190327010347-be7ac8be2ae0 // indirect
 	github.com/evanphx/json-patch v4.9.0+incompatible
 	github.com/fsnotify/fsnotify v1.4.9
 	github.com/go-logr/logr v0.2.1
 	github.com/go-logr/zapr v0.2.0
 	github.com/google/go-cmp v0.5.2 // indirect
 	github.com/googleapis/gnostic v0.5.1 // indirect
+	github.com/gophercloud/gophercloud v0.1.0 // indirect
 	github.com/hashicorp/golang-lru v0.5.4 // indirect
 	github.com/imdario/mergo v0.3.10 // indirect
 	github.com/onsi/ginkgo v1.14.1
 	github.com/onsi/gomega v1.10.2
 	github.com/prometheus/client_golang v1.7.1
 	github.com/prometheus/client_model v0.2.0
+	github.com/prometheus/common v0.10.0
+	github.com/robfig/cron v1.2.0
+	github.com/spf13/pflag v1.0.5
+	github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8 // indirect
 	go.uber.org/goleak v1.1.10
 	go.uber.org/zap v1.15.0
+	golang.org/x/text v0.3.3 // indirect
 	golang.org/x/time v0.0.0-20200630173020-3af7569d3a1e
 	gomodules.xyz/jsonpatch/v2 v2.1.0
 	google.golang.org/appengine v1.6.6 // indirect
+	gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect
 	k8s.io/api v0.19.2
 	k8s.io/apiextensions-apiserver v0.19.2
 	k8s.io/apimachinery v0.19.2
 	k8s.io/client-go v0.19.2
+	k8s.io/klog v1.0.0 // indirect
 	k8s.io/utils v0.0.0-20200729134348-d5654de09c73
+	sigs.k8s.io/structured-merge-diff/v3 v3.0.0 // indirect
 	sigs.k8s.io/yaml v1.2.0
 )