refactor monitor module

Signed-off-by: huanggze <loganhuang@yunify.com>

pkg/models/metrics/constants.go

@@ -0,0 +1,41 @@
+/*
+
+ Copyright 2019 The KubeSphere 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.
+
+*/
+package metrics
+
+const (
+	MonitorLevelCluster   = "cluster"
+	MonitorLevelNode      = "node"
+	MonitorLevelWorkspace = "workspace"
+	MonitorLevelNamespace = "namespace"
+	MonitorLevelPod       = "pod"
+	MonitorLevelContainer = "container"
+	MonitorLevelPVC       = "pvc"
+	MonitorLevelWorkload  = "workload"
+	MonitorLevelComponent = "component"
+
+	ChannelMaxCapacity = 100
+
+	// prometheus query type
+	RangeQuery       = "query_range"
+	Query            = "query"
+	DefaultQueryStep = "10m"
+
+	StatefulSet = "StatefulSet"
+	DaemonSet   = "DaemonSet"
+	Deployment  = "Deployment"
+)