Rainbond/worker/appm/controller/upgrade.go

// RAINBOND, Application Management Platform
// Copyright (C) 2014-2017 Goodrain Co., Ltd.

// 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 controller

import (
	"fmt"
	"sync"
	"time"

	"github.com/Sirupsen/logrus"
	v1 "github.com/goodrain/rainbond/worker/appm/types/v1"
)

type upgradeController struct {
	stopChan     chan struct{}
	controllerID string
	appService   []v1.AppService
	manager      *Manager
}

func (s *upgradeController) Begin() {
	var wait sync.WaitGroup
	for _, service := range s.appService {
		go func(service v1.AppService) {
			wait.Add(1)
			defer wait.Done()
			service.Logger.Info("App runtime begin upgrade app service "+service.ServiceAlias, getLoggerOption("starting"))
			if err := s.upgradeOne(service); err != nil {
				service.Logger.Error(fmt.Sprintf("upgrade service %s failure %s", service.ServiceAlias, err.Error()), getCallbackLoggerOption())
				logrus.Errorf("upgrade service %s failure %s", service.ServiceAlias, err.Error())
			} else {
				service.Logger.Error(fmt.Sprintf("upgrade service %s success", service.ServiceAlias, err.Error()), getLastLoggerOption())
			}
		}(service)
	}
	wait.Wait()
	s.manager.callback(s.controllerID, nil)
}
func (s *upgradeController) Stop() error {
	return nil
}

func (s *upgradeController) upgradeOne(app v1.AppService) error {
	if deployment := app.GetDeployment(); deployment != nil {
		_, err := s.manager.client.AppsV1().Deployments(deployment.Namespace).Update(deployment)
		if err != nil {
			app.Logger.Error(fmt.Sprintf("upgrade service %s failure %s", app.ServiceAlias, err.Error()), getLoggerOption("failure"))
			logrus.Errorf("upgrade service %s failure %s", app.ServiceAlias, err.Error())
		}
	}
	if statefulset := app.GetStatefulSet(); statefulset != nil {
		_, err := s.manager.client.AppsV1().StatefulSets(statefulset.Namespace).Update(statefulset)
		if err != nil {
			app.Logger.Error(fmt.Sprintf("upgrade service %s failure %s", app.ServiceAlias, err.Error()), getLoggerOption("failure"))
			logrus.Errorf("upgrade service %s failure %s", app.ServiceAlias, err.Error())
		}
	}
	return s.WaitingReady(app)
}

//WaitingReady wait app start or upgrade ready
func (s *upgradeController) WaitingReady(app v1.AppService) error {
	storeAppService := s.manager.store.GetAppService(app.ServiceID, app.DeployVersion, app.CreaterID)
	var initTime int32
	if podt := app.GetPodTemplate(); podt != nil {
		if probe := podt.Spec.Containers[0].ReadinessProbe; probe != nil {
			initTime = probe.InitialDelaySeconds
		}
	}
	//at least waiting time is 40 second
	initTime += 40
	if err := storeAppService.WaitUpgradeReady(time.Duration(initTime*int32(app.Replicas)*2), app.Logger, s.stopChan); err != nil {
		return err
	}
	return nil
}