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daemon_manager.go
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daemon_manager.go
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// Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License"). You may
// not use this file except in compliance with the License. A copy of the
// License is located at
//
// http://aws.amazon.com/apache2.0/
//
// or in the "license" file accompanying this file. This file 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 daemonmanager
import (
"context"
apitask "github.com/aws/amazon-ecs-agent/agent/api/task"
"github.com/aws/amazon-ecs-agent/agent/dockerclient/dockerapi"
md "github.com/aws/amazon-ecs-agent/ecs-agent/manageddaemon"
"github.com/docker/docker/api/types"
)
type DaemonManager interface {
GetManagedDaemon() *md.ManagedDaemon
CreateDaemonTask() (*apitask.Task, error)
// Returns true if the Daemon image is found on this host, false otherwise.
// Error is returned when something goes wrong when looking for the image.
ImageExists() (bool, error)
LoadImage(ctx context.Context, dockerClient dockerapi.DockerClient) (*types.ImageInspect, error)
IsLoaded(dockerClient dockerapi.DockerClient) (bool, error)
}
// each daemon manager manages one single daemon container
type daemonManager struct {
managedDaemon *md.ManagedDaemon
}
func NewDaemonManager(manageddaemon *md.ManagedDaemon) DaemonManager {
return &daemonManager{managedDaemon: manageddaemon}
}
func (dm *daemonManager) GetManagedDaemon() *md.ManagedDaemon {
return dm.managedDaemon
}