Rainbond/pkg/worker/executor/executor_manager.go
2017-11-07 11:40:44 +08:00

136 lines
3.7 KiB
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 executor
import (
"github.com/goodrain/rainbond/cmd/worker/option"
"github.com/goodrain/rainbond/pkg/status"
"github.com/goodrain/rainbond/pkg/worker/appm"
"github.com/goodrain/rainbond/pkg/worker/executor/task"
"fmt"
"sync"
"github.com/Sirupsen/logrus"
)
//Manager Manager
type Manager interface {
AddTask(task task.Task) error
RemoveTask(task task.Task)
// Start starts the Manager sync loops.
Start()
Stop()
TaskManager() *task.TaskManager
GetWorker(taskID string, eventID string) (Worker, bool)
WorkerCount() int
}
type manager struct {
// Map of active workers for probes
workers map[workerKey]Worker
// Lock for accessing & mutating workers
workerLock sync.RWMutex
taskManager *task.TaskManager
statusManager status.ServiceStatusManager
}
//NewManager newManager
func NewManager(conf option.Config, statusManager status.ServiceStatusManager, appmm appm.Manager) (Manager, error) {
return &manager{
workers: make(map[workerKey]Worker),
taskManager: task.NewTaskManager(appmm, statusManager),
statusManager: statusManager,
}, nil
}
func (m *manager) Start() {
}
func (m *manager) Stop() {
m.workerLock.Lock()
defer m.workerLock.Unlock()
for _, w := range m.workers {
w.Cancel()
}
}
// Key uniquely identifying container probes
type workerKey struct {
taskUID string
eventID string
}
func (m *manager) TaskManager() *task.TaskManager {
return m.taskManager
}
func (m *manager) AddTask(t task.Task) error {
m.workerLock.Lock()
defer m.workerLock.Unlock()
if t == nil {
return fmt.Errorf("task manager receive a nil task")
}
if _, ok := m.workers[workerKey{t.TaskID(), t.Logger().Event()}]; ok {
logrus.Errorf("worker %s:%s is exist.", t.TaskID(), t.Logger().Event())
return fmt.Errorf("worker %s:%s is exist ", t.TaskID(), t.Logger().Event())
}
worker := newWorker(m, t)
go worker.Start()
m.workers[workerKey{t.TaskID(), t.Logger().Event()}] = worker
return nil
}
func (m *manager) RemoveTask(t task.Task) {
m.workerLock.RLock()
defer m.workerLock.RUnlock()
if w, ok := m.workers[workerKey{t.TaskID(), t.Logger().Event()}]; ok {
switch w.Status() {
case "running":
w.RollBack()
case "error":
w.Cancel()
case "success":
}
m.removeWorker(t.TaskID(), t.Logger().Event())
}
}
func (m *manager) GetWorker(taskID string, eventID string) (Worker, bool) {
m.workerLock.RLock()
defer m.workerLock.RUnlock()
worker, ok := m.workers[workerKey{taskID, eventID}]
return worker, ok
}
// Called by the worker after exiting.
func (m *manager) removeWorker(taskID string, eventID string) {
m.workerLock.Lock()
defer m.workerLock.Unlock()
delete(m.workers, workerKey{taskID, eventID})
}
// workerCount returns the total number of probe workers. For testing.
func (m *manager) WorkerCount() int {
m.workerLock.RLock()
defer m.workerLock.RUnlock()
return len(m.workers)
}