mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
245 lines
8 KiB
Go
245 lines
8 KiB
Go
package daemon
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import (
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"fmt"
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"time"
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"github.com/docker/docker/api/types/backend"
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"github.com/docker/docker/container"
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"github.com/docker/docker/daemon/network"
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"github.com/docker/docker/pkg/version"
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"github.com/docker/engine-api/types"
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networktypes "github.com/docker/engine-api/types/network"
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"github.com/docker/engine-api/types/versions/v1p20"
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)
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// ContainerInspect returns low-level information about a
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// container. Returns an error if the container cannot be found, or if
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// there is an error getting the data.
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func (daemon *Daemon) ContainerInspect(name string, size bool, version version.Version) (interface{}, error) {
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switch {
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case version.LessThan("1.20"):
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return daemon.containerInspectPre120(name)
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case version.Equal("1.20"):
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return daemon.containerInspect120(name)
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}
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return daemon.containerInspectCurrent(name, size)
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}
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func (daemon *Daemon) containerInspectCurrent(name string, size bool) (*types.ContainerJSON, error) {
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container, err := daemon.GetContainer(name)
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if err != nil {
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return nil, err
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}
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container.Lock()
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defer container.Unlock()
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base, err := daemon.getInspectData(container, size)
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if err != nil {
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return nil, err
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}
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mountPoints := addMountPoints(container)
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networkSettings := &types.NetworkSettings{
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NetworkSettingsBase: types.NetworkSettingsBase{
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Bridge: container.NetworkSettings.Bridge,
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SandboxID: container.NetworkSettings.SandboxID,
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HairpinMode: container.NetworkSettings.HairpinMode,
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LinkLocalIPv6Address: container.NetworkSettings.LinkLocalIPv6Address,
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LinkLocalIPv6PrefixLen: container.NetworkSettings.LinkLocalIPv6PrefixLen,
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Ports: container.NetworkSettings.Ports,
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SandboxKey: container.NetworkSettings.SandboxKey,
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SecondaryIPAddresses: container.NetworkSettings.SecondaryIPAddresses,
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SecondaryIPv6Addresses: container.NetworkSettings.SecondaryIPv6Addresses,
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},
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DefaultNetworkSettings: daemon.getDefaultNetworkSettings(container.NetworkSettings.Networks),
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Networks: container.NetworkSettings.Networks,
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}
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return &types.ContainerJSON{
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ContainerJSONBase: base,
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Mounts: mountPoints,
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Config: container.Config,
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NetworkSettings: networkSettings,
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}, nil
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}
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// containerInspect120 serializes the master version of a container into a json type.
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func (daemon *Daemon) containerInspect120(name string) (*v1p20.ContainerJSON, error) {
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container, err := daemon.GetContainer(name)
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if err != nil {
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return nil, err
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}
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container.Lock()
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defer container.Unlock()
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base, err := daemon.getInspectData(container, false)
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if err != nil {
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return nil, err
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}
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mountPoints := addMountPoints(container)
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config := &v1p20.ContainerConfig{
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Config: container.Config,
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MacAddress: container.Config.MacAddress,
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NetworkDisabled: container.Config.NetworkDisabled,
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ExposedPorts: container.Config.ExposedPorts,
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VolumeDriver: container.HostConfig.VolumeDriver,
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}
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networkSettings := daemon.getBackwardsCompatibleNetworkSettings(container.NetworkSettings)
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return &v1p20.ContainerJSON{
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ContainerJSONBase: base,
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Mounts: mountPoints,
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Config: config,
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NetworkSettings: networkSettings,
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}, nil
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}
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func (daemon *Daemon) getInspectData(container *container.Container, size bool) (*types.ContainerJSONBase, error) {
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// make a copy to play with
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hostConfig := *container.HostConfig
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children := daemon.children(container)
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hostConfig.Links = nil // do not expose the internal structure
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for linkAlias, child := range children {
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hostConfig.Links = append(hostConfig.Links, fmt.Sprintf("%s:%s", child.Name, linkAlias))
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}
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// we need this trick to preserve empty log driver, so
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// container will use daemon defaults even if daemon change them
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if hostConfig.LogConfig.Type == "" {
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hostConfig.LogConfig.Type = daemon.defaultLogConfig.Type
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}
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if len(hostConfig.LogConfig.Config) == 0 {
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hostConfig.LogConfig.Config = daemon.defaultLogConfig.Config
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}
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containerState := &types.ContainerState{
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Status: container.State.StateString(),
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Running: container.State.Running,
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Paused: container.State.Paused,
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Restarting: container.State.Restarting,
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OOMKilled: container.State.OOMKilled,
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Dead: container.State.Dead,
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Pid: container.State.Pid,
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ExitCode: container.State.ExitCode,
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Error: container.State.Error,
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StartedAt: container.State.StartedAt.Format(time.RFC3339Nano),
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FinishedAt: container.State.FinishedAt.Format(time.RFC3339Nano),
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}
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contJSONBase := &types.ContainerJSONBase{
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ID: container.ID,
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Created: container.Created.Format(time.RFC3339Nano),
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Path: container.Path,
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Args: container.Args,
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State: containerState,
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Image: container.ImageID.String(),
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LogPath: container.LogPath,
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Name: container.Name,
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RestartCount: container.RestartCount,
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Driver: container.Driver,
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MountLabel: container.MountLabel,
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ProcessLabel: container.ProcessLabel,
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ExecIDs: container.GetExecIDs(),
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HostConfig: &hostConfig,
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}
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var (
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sizeRw int64
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sizeRootFs int64
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)
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if size {
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sizeRw, sizeRootFs = daemon.getSize(container)
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contJSONBase.SizeRw = &sizeRw
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contJSONBase.SizeRootFs = &sizeRootFs
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}
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// Now set any platform-specific fields
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contJSONBase = setPlatformSpecificContainerFields(container, contJSONBase)
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contJSONBase.GraphDriver.Name = container.Driver
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graphDriverData, err := container.RWLayer.Metadata()
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if err != nil {
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return nil, err
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}
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contJSONBase.GraphDriver.Data = graphDriverData
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return contJSONBase, nil
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}
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// ContainerExecInspect returns low-level information about the exec
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// command. An error is returned if the exec cannot be found.
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func (daemon *Daemon) ContainerExecInspect(id string) (*backend.ExecInspect, error) {
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e, err := daemon.getExecConfig(id)
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if err != nil {
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return nil, err
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}
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pc := inspectExecProcessConfig(e)
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return &backend.ExecInspect{
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ID: e.ID,
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Running: e.Running,
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ExitCode: e.ExitCode,
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ProcessConfig: pc,
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OpenStdin: e.OpenStdin,
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OpenStdout: e.OpenStdout,
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OpenStderr: e.OpenStderr,
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CanRemove: e.CanRemove,
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ContainerID: e.ContainerID,
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DetachKeys: e.DetachKeys,
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}, nil
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}
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// VolumeInspect looks up a volume by name. An error is returned if
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// the volume cannot be found.
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func (daemon *Daemon) VolumeInspect(name string) (*types.Volume, error) {
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v, err := daemon.volumes.Get(name)
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if err != nil {
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return nil, err
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}
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return volumeToAPIType(v), nil
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}
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func (daemon *Daemon) getBackwardsCompatibleNetworkSettings(settings *network.Settings) *v1p20.NetworkSettings {
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result := &v1p20.NetworkSettings{
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NetworkSettingsBase: types.NetworkSettingsBase{
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Bridge: settings.Bridge,
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SandboxID: settings.SandboxID,
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HairpinMode: settings.HairpinMode,
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LinkLocalIPv6Address: settings.LinkLocalIPv6Address,
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LinkLocalIPv6PrefixLen: settings.LinkLocalIPv6PrefixLen,
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Ports: settings.Ports,
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SandboxKey: settings.SandboxKey,
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SecondaryIPAddresses: settings.SecondaryIPAddresses,
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SecondaryIPv6Addresses: settings.SecondaryIPv6Addresses,
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},
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DefaultNetworkSettings: daemon.getDefaultNetworkSettings(settings.Networks),
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}
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return result
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}
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// getDefaultNetworkSettings creates the deprecated structure that holds the information
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// about the bridge network for a container.
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func (daemon *Daemon) getDefaultNetworkSettings(networks map[string]*networktypes.EndpointSettings) types.DefaultNetworkSettings {
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var settings types.DefaultNetworkSettings
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if defaultNetwork, ok := networks["bridge"]; ok {
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settings.EndpointID = defaultNetwork.EndpointID
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settings.Gateway = defaultNetwork.Gateway
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settings.GlobalIPv6Address = defaultNetwork.GlobalIPv6Address
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settings.GlobalIPv6PrefixLen = defaultNetwork.GlobalIPv6PrefixLen
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settings.IPAddress = defaultNetwork.IPAddress
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settings.IPPrefixLen = defaultNetwork.IPPrefixLen
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settings.IPv6Gateway = defaultNetwork.IPv6Gateway
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settings.MacAddress = defaultNetwork.MacAddress
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}
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return settings
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}
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