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core.go
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core.go
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/*
* === This file is part of ALICE O² ===
*
* Copyright 2017-2020 CERN and copyright holders of ALICE O².
* Author: Teo Mrnjavac <teo.mrnjavac@cern.ch>
*
* 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.
*
* 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/>.
*
* In applying this license CERN does not waive the privileges and
* immunities granted to it by virtue of its status as an
* Intergovernmental Organization or submit itself to any jurisdiction.
*/
package core
import (
"context"
"fmt"
"net"
"github.com/AliceO2Group/Control/common/logger/infologger"
"github.com/AliceO2Group/Control/core/the"
"github.com/AliceO2Group/Control/common/logger"
"github.com/AliceO2Group/Control/common/product"
"github.com/AliceO2Group/Control/core/integration"
"github.com/sirupsen/logrus"
"github.com/spf13/viper"
)
var log = logger.New(logrus.StandardLogger(),"core")
// Run is the entry point for this scheduler.
// TODO: refactor Config to reflect our specific requirements
func Run() error {
if viper.GetBool("verbose") {
logrus.SetLevel(logrus.DebugLevel)
}
if viper.GetBool("veryVerbose") {
logrus.SetLevel(logrus.TraceLevel)
}
if viper.GetBool("veryVerbose") {
log.WithField("configuration", viper.AllSettings()).Debug("core starting up")
}
log.WithField("level", infologger.IL_Support).Infof("%s core (%s v%s build %s) starting up", product.PRETTY_FULLNAME, product.PRETTY_SHORTNAME, product.VERSION, product.BUILD)
// We create a context and use its cancel func as a shutdown func to release
// all resources. The shutdown func is stored in the scheduler.internalState.
ctx, cancel := context.WithCancel(context.Background())
// This only runs once to create a container for all data which comprises the
// scheduler's state.
// It also keeps count of the tasks launched/finished
state, err := newGlobalState(cancel)
if err != nil {
return err
}
// Set up channel to receive Unix Signals.
signals(state)
// Start the Repo Manager instance
log.WithField("level", infologger.IL_Support).Infof("Starting the Control Workflows repo manager")
_ = the.RepoManager()
// We now build the Control server
s := NewServer(state)
state.taskman.Start(ctx)
// Plugins need to start after taskman is running, because taskman provides the FID
integration.PluginsInstance().InitAll(state.taskman.GetFrameworkID())
lis, err := net.Listen("tcp", fmt.Sprintf(":%d", viper.GetInt("controlPort")))
if err != nil {
log.WithField("error", err).
WithField("port", viper.GetInt("controlPort")).
Fatal("net.Listener failed to listen")
}
if err := s.Serve(lis); err != nil {
log.WithField("error", err).Fatal("GRPC server failed to serve")
}
// Ensure all workflow plugins are destroyed before core teardown
integration.PluginsInstance().DestroyAll()
return err
}
// end Run