forked from goodrain/rainbond
/
stateful_handle.go
148 lines (136 loc) · 4.82 KB
/
stateful_handle.go
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// Copyright (C) 2014-2018 Goodrain Co., Ltd.
// RAINBOND, Application Management Platform
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version. For any non-GPL usage of Rainbond,
// one or multiple Commercial Licenses authorized by Goodrain Co., Ltd.
// must be obtained first.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package status
import (
"fmt"
"github.com/goodrain/rainbond/appruntimesync/source"
"github.com/goodrain/rainbond/db"
"github.com/Sirupsen/logrus"
"github.com/jinzhu/gorm"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/pkg/api/v1"
)
func (s *Manager) handleStatefulUpdate(update source.StatefulSetUpdate) {
if update.StatefulSet == nil {
return
}
var serviceID string
deployIndo, err := db.GetManager().K8sDeployReplicationDao().GetK8sDeployReplication(update.StatefulSet.Name)
if err != nil {
if len(update.StatefulSet.Spec.Template.Spec.Containers) > 0 {
for _, env := range update.StatefulSet.Spec.Template.Spec.Containers[0].Env {
if env.Name == "SERVICE_ID" {
serviceID = env.Value
}
}
}
if err != gorm.ErrRecordNotFound {
logrus.Error("get deploy info from db error.", err.Error())
}
} else {
serviceID = deployIndo.ServiceID
}
if serviceID == "" {
logrus.Error("handle application(StatefulSet) status error. service id is empty")
return
}
readycount := s.getReadyCount(update.StatefulSet.Namespace,
update.StatefulSet.Labels["name"],
update.StatefulSet.Labels["version"])
switch update.Op {
case source.ADD:
if update.StatefulSet.Status.Replicas == 0 {
return
}
logrus.Infof("Stateful application ready count %d of service %s", readycount, update.StatefulSet.Labels["name"])
if readycount >= update.StatefulSet.Status.Replicas {
s.SetStatus(serviceID, RUNNING)
}
if readycount < update.StatefulSet.Status.Replicas {
status := s.GetStatus(serviceID)
if status == RUNNING {
s.SetStatus(serviceID, ABNORMAL)
}
if status == CLOSED {
s.SetStatus(serviceID, STARTING)
}
}
case source.UPDATE:
if update.StatefulSet.Status.Replicas == 0 {
return
}
status := s.GetStatus(serviceID)
//Ready数量==需要实例数量,应用在运行中
if readycount >= update.StatefulSet.Status.Replicas {
if status != STOPPING && status != UPGRADE {
s.SetStatus(serviceID, RUNNING)
}
}
if readycount < update.StatefulSet.Status.Replicas {
if status == RUNNING && !s.isIgnoreDelete(update.StatefulSet.Name) {
s.SetStatus(serviceID, ABNORMAL)
}
}
case source.REMOVE:
// if deploy, _ := db.GetManager().K8sDeployReplicationDao().GetK8sDeployReplicationByService(serviceID); len(deploy) == 1 {
// s.SetStatus(serviceID, CLOSED)
// db.GetManager().K8sDeployReplicationDao().DeleteK8sDeployReplication(update.StatefulSet.Name)
// }
if !s.isIgnoreDelete(update.StatefulSet.Name) {
s.SetStatus(serviceID, CLOSED)
db.GetManager().K8sDeployReplicationDao().DeleteK8sDeployReplication(update.StatefulSet.Name)
} else {
s.RmIgnoreDelete(update.StatefulSet.Name)
}
}
}
func (s *Manager) getReadyCount(namespace, name, version string) int32 {
pods, err := s.ClientSet.Core().Pods(namespace).List(metav1.ListOptions{
LabelSelector: fmt.Sprintf("name=%s,version=%s", name, version),
})
if err != nil {
logrus.Error("list application pods error.", err.Error())
return 0
}
readyReplicasCount := 0
for _, pod := range pods.Items {
if IsPodReady(&pod) {
readyReplicasCount++
}
}
return int32(readyReplicasCount)
}
// GetPodCondition extracts the provided condition from the given status and returns that.
// Returns nil and -1 if the condition is not present, and the index of the located condition.
func GetPodCondition(status *v1.PodStatus, conditionType v1.PodConditionType) (int, *v1.PodCondition) {
if status == nil {
return -1, nil
}
for i := range status.Conditions {
if status.Conditions[i].Type == conditionType {
return i, &status.Conditions[i]
}
}
return -1, nil
}
// IsPodReady returns true if a pod is ready; false otherwise.
func IsPodReady(pod *v1.Pod) bool {
return IsPodReadyConditionTrue(pod.Status)
}
// IsPodReadyConditionTrue retruns true if a pod is ready; false otherwise.
func IsPodReadyConditionTrue(status v1.PodStatus) bool {
_, condition := GetPodCondition(&status, v1.PodReady)
return condition != nil && condition.Status == v1.ConditionTrue
}