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inspect.go
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/
inspect.go
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package daemon
import (
"fmt"
"time"
"github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/versions/v1p20"
)
// ContainerInspect returns low-level information about a
// container. Returns an error if the container cannot be found, or if
// there is an error getting the data.
func (daemon *Daemon) ContainerInspect(name string, size bool) (*types.ContainerJSON, error) {
container, err := daemon.Get(name)
if err != nil {
return nil, err
}
container.Lock()
defer container.Unlock()
base, err := daemon.getInspectData(container, size)
if err != nil {
return nil, err
}
mountPoints := addMountPoints(container)
return &types.ContainerJSON{base, mountPoints, container.Config}, nil
}
// ContainerInspect120 serializes the master version of a container into a json type.
func (daemon *Daemon) ContainerInspect120(name string) (*v1p20.ContainerJSON, error) {
container, err := daemon.Get(name)
if err != nil {
return nil, err
}
container.Lock()
defer container.Unlock()
base, err := daemon.getInspectData(container, false)
if err != nil {
return nil, err
}
mountPoints := addMountPoints(container)
config := &v1p20.ContainerConfig{
container.Config,
container.hostConfig.VolumeDriver,
}
return &v1p20.ContainerJSON{base, mountPoints, config}, nil
}
func (daemon *Daemon) getInspectData(container *Container, size bool) (*types.ContainerJSONBase, error) {
// make a copy to play with
hostConfig := *container.hostConfig
if children, err := daemon.children(container.Name); err == nil {
for linkAlias, child := range children {
hostConfig.Links = append(hostConfig.Links, fmt.Sprintf("%s:%s", child.Name, linkAlias))
}
}
// we need this trick to preserve empty log driver, so
// container will use daemon defaults even if daemon change them
if hostConfig.LogConfig.Type == "" {
hostConfig.LogConfig.Type = daemon.defaultLogConfig.Type
}
if len(hostConfig.LogConfig.Config) == 0 {
hostConfig.LogConfig.Config = daemon.defaultLogConfig.Config
}
containerState := &types.ContainerState{
Status: container.State.StateString(),
Running: container.State.Running,
Paused: container.State.Paused,
Restarting: container.State.Restarting,
OOMKilled: container.State.OOMKilled,
Dead: container.State.Dead,
Pid: container.State.Pid,
ExitCode: container.State.ExitCode,
Error: container.State.Error,
StartedAt: container.State.StartedAt.Format(time.RFC3339Nano),
FinishedAt: container.State.FinishedAt.Format(time.RFC3339Nano),
}
contJSONBase := &types.ContainerJSONBase{
ID: container.ID,
Created: container.Created.Format(time.RFC3339Nano),
Path: container.Path,
Args: container.Args,
State: containerState,
Image: container.ImageID,
NetworkSettings: container.NetworkSettings,
LogPath: container.LogPath,
Name: container.Name,
RestartCount: container.RestartCount,
Driver: container.Driver,
ExecDriver: container.ExecDriver,
MountLabel: container.MountLabel,
ProcessLabel: container.ProcessLabel,
ExecIDs: container.getExecIDs(),
HostConfig: &hostConfig,
}
var (
sizeRw int64
sizeRootFs int64
)
if size {
sizeRw, sizeRootFs = container.getSize()
contJSONBase.SizeRw = &sizeRw
contJSONBase.SizeRootFs = &sizeRootFs
}
// Now set any platform-specific fields
contJSONBase = setPlatformSpecificContainerFields(container, contJSONBase)
contJSONBase.GraphDriver.Name = container.Driver
graphDriverData, err := daemon.driver.GetMetadata(container.ID)
if err != nil {
return nil, err
}
contJSONBase.GraphDriver.Data = graphDriverData
return contJSONBase, nil
}
// ContainerExecInspect returns low-level information about the exec
// command. An error is returned if the exec cannot be found.
func (daemon *Daemon) ContainerExecInspect(id string) (*ExecConfig, error) {
eConfig, err := daemon.getExecConfig(id)
if err != nil {
return nil, err
}
return eConfig, nil
}
// VolumeInspect looks up a volume by name. An error is returned if
// the volume cannot be found.
func (daemon *Daemon) VolumeInspect(name string) (*types.Volume, error) {
v, err := daemon.volumes.Get(name)
if err != nil {
return nil, err
}
return volumeToAPIType(v), nil
}