1 files changed, 139 insertions, 0 deletions
diff --git a/src/rsync/pkg/status/status.go b/src/rsync/pkg/status/status.go
new file mode 100644
index 00000000..28bffefd
--- /dev/null
+++ b/src/rsync/pkg/status/status.go
@@ -0,0 +1,139 @@
+/*
+ * Copyright 2020 Intel Corporation, Inc
+ *
+ * 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 status
+
+import (
+	"encoding/json"
+	"fmt"
+	"sync"
+
+	pkgerrors "github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
+
+	v1alpha1 "github.com/onap/multicloud-k8s/src/monitor/pkg/apis/k8splugin/v1alpha1"
+	clientset "github.com/onap/multicloud-k8s/src/monitor/pkg/generated/clientset/versioned"
+	informers "github.com/onap/multicloud-k8s/src/monitor/pkg/generated/informers/externalversions"
+	"k8s.io/client-go/tools/cache"
+	"k8s.io/client-go/tools/clientcmd"
+)
+
+type channelManager struct {
+	channels map[string]chan struct{}
+	sync.Mutex
+}
+
+var channelData channelManager
+
+const monitorLabel = "emco/deployment-id"
+
+// HandleStatusUpdate for an application in a cluster
+// TODO: Add code for specific handling
+func HandleStatusUpdate(provider, name string, id string, v *v1alpha1.ResourceBundleState) error {
+	logrus.Info("label::", id)
+	//status := v.Status.ServiceStatuses
+	//podStatus := v.Status.PodStatuses
+	// Store Pod Status in app context
+	out, _ := json.Marshal(v.Status)
+	logrus.Info("Status::", string(out))
+	return nil
+}
+
+// StartClusterWatcher watches for CR
+// configBytes - Kubectl file data
+func StartClusterWatcher(provider, name string, configBytes []byte) error {
+	key := provider + "+" + name
+	// Get the lock
+	channelData.Lock()
+	defer channelData.Unlock()
+	// For first time
+	if channelData.channels == nil {
+		channelData.channels = make(map[string]chan struct{})
+	}
+	_, ok := channelData.channels[key]
+	if !ok {
+		// Create Channel
+		channelData.channels[key] = make(chan struct{})
+		// Create config
+		config, err := clientcmd.RESTConfigFromKubeConfig(configBytes)
+		if err != nil {
+			logrus.Info(fmt.Sprintf("RESTConfigFromKubeConfig error: %s", err.Error()))
+			return pkgerrors.Wrap(err, "RESTConfigFromKubeConfig error")
+		}
+		k8sClient, err := clientset.NewForConfig(config)
+		if err != nil {
+			return pkgerrors.Wrap(err, "Clientset NewForConfig error")
+		}
+		// Create Informer
+		mInformerFactory := informers.NewSharedInformerFactory(k8sClient, 0)
+		mInformer := mInformerFactory.K8splugin().V1alpha1().ResourceBundleStates().Informer()
+		go scheduleStatus(provider, name, channelData.channels[key], mInformer)
+	}
+	return nil
+}
+
+// StopClusterWatcher stop watching a cluster
+func StopClusterWatcher(provider, name string) {
+	key := provider + "+" + name
+	if channelData.channels != nil {
+		c, ok := channelData.channels[key]
+		if ok {
+			close(c)
+		}
+	}
+}
+
+// CloseAllClusterWatchers close all channels
+func CloseAllClusterWatchers() {
+	if channelData.channels == nil {
+		return
+	}
+	// Close all Channels to stop all watchers
+	for _, e := range channelData.channels {
+		close(e)
+	}
+}
+
+// Per Cluster Go routine to watch CR
+func scheduleStatus(provider, name string, c <-chan struct{}, s cache.SharedIndexInformer) {
+	handlers := cache.ResourceEventHandlerFuncs{
+		AddFunc: func(obj interface{}) {
+			v, ok := obj.(*v1alpha1.ResourceBundleState)
+			if ok {
+				labels := v.GetLabels()
+				l, ok := labels[monitorLabel]
+				if ok {
+					HandleStatusUpdate(provider, name, l, v)
+				}
+			}
+		},
+		UpdateFunc: func(oldObj, obj interface{}) {
+			v, ok := obj.(*v1alpha1.ResourceBundleState)
+			if ok {
+				labels := v.GetLabels()
+				l, ok := labels[monitorLabel]
+				if ok {
+					HandleStatusUpdate(provider, name, l, v)
+				}
+			}
+		},
+		DeleteFunc: func(obj interface{}) {
+			// Ignore it
+		},
+	}
+	s.AddEventHandler(handlers)
+	s.Run(c)
+}