/
manager.go
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/
manager.go
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// Copyright (c) 2019 Uber Technologies, Inc.
//
// 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 mesos
import (
"context"
log "github.com/sirupsen/logrus"
"go.uber.org/yarpc"
sched "github.com/uber/peloton/.gen/mesos/v1/scheduler"
"github.com/uber/peloton/pkg/hostmgr/mesos/yarpc/encoding/mpb"
"github.com/uber/peloton/pkg/storage"
)
// InitManager initializes the mesosManager
func InitManager(
d *yarpc.Dispatcher,
mesosConfig *Config,
store storage.FrameworkInfoStore) {
m := mesosManager{
store: store,
frameworkName: mesosConfig.Framework.Name,
}
for name, hdl := range getCallbacks(&m) {
mpb.Register(d, ServiceName, mpb.Procedure(name, hdl))
}
}
// mesosManager is a handler for Mesos scheduler API events.
type mesosManager struct {
store storage.FrameworkInfoStore
frameworkName string
}
type schedulerEventCallback func(context.Context, *sched.Event) error
// getCallbacks returns a map from name to usable callbacks
// which can be registered to yarpc.Dispatcher.
func getCallbacks(m *mesosManager) map[string]schedulerEventCallback {
procedures := make(map[string]schedulerEventCallback)
callbacks := map[sched.Event_Type]schedulerEventCallback{
sched.Event_SUBSCRIBED: m.Subscribed,
sched.Event_MESSAGE: m.Message,
sched.Event_FAILURE: m.Failure,
sched.Event_ERROR: m.Error,
sched.Event_HEARTBEAT: m.Heartbeat,
sched.Event_UNKNOWN: m.Unknown,
}
for typ, hdl := range callbacks {
name := typ.String()
procedures[name] = hdl
}
return procedures
}
func (m *mesosManager) Subscribed(ctx context.Context, body *sched.Event) error {
subscribed := body.GetSubscribed()
log.WithField("subscribed", subscribed).
Info("mesosManager: subscribed called")
frameworkID := subscribed.GetFrameworkId().GetValue()
err := m.store.SetMesosFrameworkID(ctx, m.frameworkName, frameworkID)
if err != nil {
log.WithError(err).WithFields(log.Fields{
"framework_id": frameworkID,
"name": m.frameworkName,
}).Error("Failed to SetMesosFrameworkId")
}
return err
}
func (m *mesosManager) Message(ctx context.Context, body *sched.Event) error {
msg := body.GetMessage()
log.WithField("msg", msg).Debug("mesosManager: message called")
return nil
}
func (m *mesosManager) Failure(ctx context.Context, body *sched.Event) error {
failure := body.GetFailure()
log.WithField("failure", failure).Debug("mesosManager: failure called")
return nil
}
func (m *mesosManager) Error(ctx context.Context, body *sched.Event) error {
err := body.GetError()
log.WithField("error", err).Debug("mesosManager: error called")
return nil
}
func (m *mesosManager) Heartbeat(ctx context.Context, body *sched.Event) error {
log.Debug("mesosManager: heartbeat called")
return nil
}
func (m *mesosManager) Unknown(ctx context.Context, body *sched.Event) error {
log.WithField("event", body).Info("mesosManager: unknown event called")
return nil
}