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common.go
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common.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 plugins
import (
"context"
"github.com/uber/peloton/pkg/hostmgr/models"
"github.com/uber/peloton/pkg/hostmgr/p2k/plugins/k8s"
"github.com/uber/peloton/pkg/hostmgr/p2k/scalar"
)
const EventChanSize = 1000
// NewK8sPlugin returns a new instance of k8s plugin.
func NewK8sPlugin(
configPath string,
podEventsCh chan<- *scalar.PodEvent,
hostEventCh chan<- *scalar.HostEvent,
) (Plugin, error) {
return k8s.NewK8sManager(configPath, podEventsCh, hostEventCh)
}
func NewNoopPlugin() Plugin {
return &NoopPlugin{}
}
type NoopPlugin struct{}
// Start the plugin.
func (p *NoopPlugin) Start() error {
return nil
}
// Stop the plugin.
func (p *NoopPlugin) Stop() {}
// LaunchPods launch a list of pods on a host.
func (p *NoopPlugin) LaunchPods(
ctx context.Context,
pods []*models.LaunchablePod,
hostname string,
) ([]*models.LaunchablePod, error) {
return nil, nil
}
// KillPod kills a pod on a host.
func (p *NoopPlugin) KillPod(context context.Context, podID string) error {
return nil
}
// AckPodEvent is only implemented by mesos plugin. For K8s this is a noop.
func (p *NoopPlugin) AckPodEvent(event *scalar.PodEvent) {}
// ReconcileHosts will return the current state of hosts in the cluster.
func (p *NoopPlugin) ReconcileHosts() ([]*scalar.HostInfo, error) {
return nil, nil
}