Files
sealos/pkg/checker/pod_checker.go
T
2023-03-21 17:26:08 +08:00

133 lines
3.5 KiB
Go

// Copyright © 2021 Alibaba Group Holding Ltd.
//
// 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 checker
import (
"context"
"errors"
"os"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"github.com/labring/sealos/pkg/client-go/kubernetes"
"github.com/labring/sealos/pkg/constants"
"github.com/labring/sealos/pkg/template"
v2 "github.com/labring/sealos/pkg/types/v1beta1"
"github.com/labring/sealos/pkg/utils/logger"
)
type PodChecker struct {
client kubernetes.Client
}
type PodNamespaceStatus struct {
NamespaceName string
RunningCount uint32
NotRunningCount uint32
PodCount uint32
NotRunningPodList []*corev1.Pod
}
var PodNamespaceStatusList []PodNamespaceStatus
func (n *PodChecker) Check(cluster *v2.Cluster, phase string) error {
if phase != PhasePost {
return nil
}
// checker if all the node is ready
data := constants.NewData(cluster.Name)
c, err := kubernetes.NewKubernetesClient(data.AdminFile(), "")
if err != nil {
return err
}
n.client = c
nsList, err := n.client.Kubernetes().CoreV1().Namespaces().List(context.TODO(), metav1.ListOptions{})
if err != nil {
return err
}
for _, podNamespace := range nsList.Items {
var runningCount uint32
var notRunningCount uint32
var podCount uint32
var notRunningPodList []*corev1.Pod
namespacePodList, err := n.client.Kubernetes().CoreV1().Pods(podNamespace.Name).List(context.TODO(), metav1.ListOptions{})
if err != nil {
return err
}
for _, pod := range namespacePodList.Items {
if err := getPodReadyStatus(pod); err != nil {
notRunningCount++
newPod := pod
notRunningPodList = append(notRunningPodList, &newPod)
} else {
runningCount++
}
}
podCount = runningCount + notRunningCount
podNamespaceStatus := PodNamespaceStatus{
NamespaceName: podNamespace.Name,
RunningCount: runningCount,
NotRunningCount: notRunningCount,
PodCount: podCount,
NotRunningPodList: notRunningPodList,
}
PodNamespaceStatusList = append(PodNamespaceStatusList, podNamespaceStatus)
}
return n.Output(PodNamespaceStatusList)
}
func (n *PodChecker) Output(podNamespaceStatusList []PodNamespaceStatus) error {
tpl, isOk, err := template.TryParse(`Cluster Pod Status
{{ range . -}}
Namespace: {{ .NamespaceName }}
RunningPod: {{ .RunningCount }}/{{ .PodCount }}
{{ if (gt .NotRunningCount 0) -}}
Not Running Pod List:
{{- range .NotRunningPodList }}
PodName: {{ .Name }}
{{- end }}
{{ end }}
{{- end }}
`)
if err != nil || !isOk {
if err != nil {
logger.Error("failed to render pod checkers template. error: %s", err.Error())
return err
}
return errors.New("convert pod template failed")
}
return tpl.Execute(os.Stdout, podNamespaceStatusList)
}
func getPodReadyStatus(pod corev1.Pod) error {
for _, condition := range pod.Status.Conditions {
if condition.Type == "Ready" {
if condition.Status == "True" {
return nil
}
}
}
return &NotFindReadyTypeError{}
}
func NewPodChecker() Interface {
return &PodChecker{}
}