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backend.go
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backend.go
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package executor // import "github.com/docker/docker/daemon/cluster/executor"
import (
"context"
"io"
"time"
"github.com/docker/distribution"
"github.com/docker/distribution/reference"
"github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/backend"
"github.com/docker/docker/api/types/container"
"github.com/docker/docker/api/types/events"
"github.com/docker/docker/api/types/filters"
opts "github.com/docker/docker/api/types/image"
"github.com/docker/docker/api/types/network"
"github.com/docker/docker/api/types/registry"
"github.com/docker/docker/api/types/swarm"
"github.com/docker/docker/api/types/volume"
containerpkg "github.com/docker/docker/container"
clustertypes "github.com/docker/docker/daemon/cluster/provider"
networkSettings "github.com/docker/docker/daemon/network"
"github.com/docker/docker/image"
"github.com/docker/docker/libnetwork"
"github.com/docker/docker/libnetwork/cluster"
networktypes "github.com/docker/docker/libnetwork/types"
"github.com/docker/docker/plugin"
volumeopts "github.com/docker/docker/volume/service/opts"
"github.com/moby/swarmkit/v2/agent/exec"
ocispec "github.com/opencontainers/image-spec/specs-go/v1"
)
// Backend defines the executor component for a swarm agent.
type Backend interface {
CreateManagedNetwork(clustertypes.NetworkCreateRequest) error
DeleteManagedNetwork(networkID string) error
FindNetwork(idName string) (libnetwork.Network, error)
SetupIngress(clustertypes.NetworkCreateRequest, string) (<-chan struct{}, error)
ReleaseIngress() (<-chan struct{}, error)
CreateManagedContainer(ctx context.Context, config types.ContainerCreateConfig) (container.CreateResponse, error)
ContainerStart(ctx context.Context, name string, hostConfig *container.HostConfig, checkpoint string, checkpointDir string) error
ContainerStop(ctx context.Context, name string, config container.StopOptions) error
ContainerLogs(ctx context.Context, name string, config *types.ContainerLogsOptions) (msgs <-chan *backend.LogMessage, tty bool, err error)
ConnectContainerToNetwork(containerName, networkName string, endpointConfig *network.EndpointSettings) error
ActivateContainerServiceBinding(containerName string) error
DeactivateContainerServiceBinding(containerName string) error
UpdateContainerServiceConfig(containerName string, serviceConfig *clustertypes.ServiceConfig) error
ContainerInspectCurrent(ctx context.Context, name string, size bool) (*types.ContainerJSON, error)
ContainerWait(ctx context.Context, name string, condition containerpkg.WaitCondition) (<-chan containerpkg.StateStatus, error)
ContainerRm(name string, config *types.ContainerRmConfig) error
ContainerKill(name string, sig string) error
SetContainerDependencyStore(name string, store exec.DependencyGetter) error
SetContainerSecretReferences(name string, refs []*swarm.SecretReference) error
SetContainerConfigReferences(name string, refs []*swarm.ConfigReference) error
SystemInfo() *types.Info
Containers(ctx context.Context, config *types.ContainerListOptions) ([]*types.Container, error)
SetNetworkBootstrapKeys([]*networktypes.EncryptionKey) error
DaemonJoinsCluster(provider cluster.Provider)
DaemonLeavesCluster()
IsSwarmCompatible() error
SubscribeToEvents(since, until time.Time, filter filters.Args) ([]events.Message, chan interface{})
UnsubscribeFromEvents(listener chan interface{})
UpdateAttachment(string, string, string, *network.NetworkingConfig) error
WaitForDetachment(context.Context, string, string, string, string) error
PluginManager() *plugin.Manager
PluginGetter() *plugin.Store
GetAttachmentStore() *networkSettings.AttachmentStore
HasExperimental() bool
}
// VolumeBackend is used by an executor to perform volume operations
type VolumeBackend interface {
Create(ctx context.Context, name, driverName string, opts ...volumeopts.CreateOption) (*volume.Volume, error)
}
// ImageBackend is used by an executor to perform image operations
type ImageBackend interface {
PullImage(ctx context.Context, image, tag string, platform *ocispec.Platform, metaHeaders map[string][]string, authConfig *registry.AuthConfig, outStream io.Writer) error
GetRepository(context.Context, reference.Named, *registry.AuthConfig) (distribution.Repository, error)
GetImage(ctx context.Context, refOrID string, options opts.GetImageOpts) (*image.Image, error)
}