/
querier.go
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/
querier.go
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// Copyright 2020 Antrea 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 querier
import (
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"antrea.io/antrea/pkg/apis/crd/v1beta1"
"antrea.io/antrea/pkg/querier"
)
const (
serviceName = "antrea"
)
var _ ControllerQuerier = new(controllerQuerier)
type ControllerQuerier interface {
GetControllerInfo(controllerInfo *v1beta1.AntreaControllerInfo, partial bool)
}
type controllerQuerier struct {
networkPolicyInfoQuerier querier.ControllerNetworkPolicyInfoQuerier
apiPort int
}
func NewControllerQuerier(networkPolicyInfoQuerier querier.ControllerNetworkPolicyInfoQuerier,
apiPort int) *controllerQuerier {
return &controllerQuerier{
networkPolicyInfoQuerier: networkPolicyInfoQuerier,
apiPort: apiPort,
}
}
// getNetworkPolicyInfoQuerier gets current network policy info querier.
func (cq controllerQuerier) getNetworkPolicyInfoQuerier() querier.ControllerNetworkPolicyInfoQuerier {
return cq.networkPolicyInfoQuerier
}
// getService gets current service.
func (cq controllerQuerier) getService() v1.ObjectReference {
return v1.ObjectReference{Kind: "Service", Name: serviceName}
}
// getNetworkPolicyControllerInfo gets current network policy controller info
// including: number of network policies, address groups and applied to groups.
func (cq controllerQuerier) getNetworkPolicyControllerInfo() v1beta1.NetworkPolicyControllerInfo {
return v1beta1.NetworkPolicyControllerInfo{
NetworkPolicyNum: int32(cq.networkPolicyInfoQuerier.GetNetworkPolicyNum()),
AddressGroupNum: int32(cq.networkPolicyInfoQuerier.GetAddressGroupNum()),
AppliedToGroupNum: int32(cq.networkPolicyInfoQuerier.GetAppliedToGroupNum()),
}
}
func (cq controllerQuerier) getControllerConditions() []v1beta1.ControllerCondition {
return []v1beta1.ControllerCondition{
{
Type: v1beta1.ControllerHealthy,
Status: v1.ConditionTrue,
LastHeartbeatTime: metav1.Now(),
},
}
}
// GetControllerInfo gets current info of controller.
func (cq controllerQuerier) GetControllerInfo(controllerInfo *v1beta1.AntreaControllerInfo, partial bool) {
controllerInfo.NetworkPolicyControllerInfo = cq.getNetworkPolicyControllerInfo()
controllerInfo.ConnectedAgentNum = int32(cq.getNetworkPolicyInfoQuerier().GetConnectedAgentNum())
controllerInfo.ControllerConditions = cq.getControllerConditions()
if !partial {
controllerInfo.Version = querier.GetVersion()
controllerInfo.PodRef = querier.GetSelfPod()
controllerInfo.NodeRef = querier.GetSelfNode(false, "")
controllerInfo.ServiceRef = cq.getService()
controllerInfo.APIPort = cq.apiPort
}
}