daemon

package
v1.4.2-0...-e4855ee Latest Latest
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 Go to latest Published: May 14, 2015 License: Apache-2.0 Imports: 91 Imported by: 0

README

This directory contains code pertaining to running containers and storing images

Code pertaining to running containers:

  • execdriver
  • networkdriver

Code pertaining to storing images:

  • graphdriver

Documentation

Index

Constants

View Source 
const DefaultPathEnv = "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"

Variables

View Source 
var (
	ErrNotATTY               = errors.New("The PTY is not a file")
	ErrNoTTY                 = errors.New("No PTY found")
	ErrContainerStart        = errors.New("The container failed to start. Unknown error")
	ErrContainerStartTimeout = errors.New("The container failed to start due to timed out.")
)

Functions

func GetFullContainerName 

func GetFullContainerName(name string) (string, error)

Types

type CommonConfig 

type CommonConfig struct {
	AutoRestart    bool
	Bridge         bridge.Config
	Context        map[string][]string
	CorsHeaders    string
	DisableNetwork bool
	Dns            []string
	DnsSearch      []string
	EnableCors     bool
	ExecDriver     string
	GraphDriver    string
	Labels         []string
	LogConfig      runconfig.LogConfig
	Mtu            int
	Pidfile        string
	Root           string
	TrustKeyPath   string
}

CommonConfig defines the configuration of a docker daemon which are common across platforms.

type Config 

type Config struct {
	CommonConfig

	// Fields below here are platform specific.
	EnableSelinuxSupport bool
	ExecOptions          []string
	GraphOptions         []string
	SocketGroup          string
	Ulimits              map[string]*ulimit.Ulimit
}

Config defines the configuration of a docker daemon. These are the configuration settings that you pass to the docker daemon when you launch it with say: `docker -d -e lxc`

func (*Config) InstallCommonFlags 

func (config *Config) InstallCommonFlags()

InstallCommonFlags adds command-line options to the top-level flag parser for the current process. Subsequent calls to `flag.Parse` will populate config with values parsed from the command-line.

func (*Config) InstallFlags 

func (config *Config) InstallFlags()

InstallFlags adds command-line options to the top-level flag parser for the current process. Subsequent calls to `flag.Parse` will populate config with values parsed from the command-line.

type Container 

type Container struct {
	*State `json:"State"` // Needed for remote api version <= 1.11

	ID string

	Created time.Time

	Path string
	Args []string

	Config  *runconfig.Config
	ImageID string `json:"Image"`

	NetworkSettings *network.Settings

	ResolvConfPath string
	HostnamePath   string
	HostsPath      string
	LogPath        string
	Name           string
	Driver         string
	ExecDriver     string

	StreamConfig

	MountLabel, ProcessLabel string
	AppArmorProfile          string
	RestartCount             int
	UpdateDns                bool

	// Maps container paths to volume paths.  The key in this is the path to which
	// the volume is being mounted inside the container.  Value is the path of the
	// volume on disk
	Volumes map[string]string
	// Store rw/ro in a separate structure to preserve reverse-compatibility on-disk.
	// Easier than migrating older container configs :)
	VolumesRW map[string]bool

	AppliedVolumesFrom map[string]struct{}
	// contains filtered or unexported fields
}

func (*Container) AllocateNetwork 

func (container *Container) AllocateNetwork() error

func (*Container) Attach 

func (c *Container) Attach(stdin io.ReadCloser, stdout io.Writer, stderr io.Writer) chan error

func (*Container) AttachWithLogs 

func (c *Container) AttachWithLogs(stdin io.ReadCloser, stdout, stderr io.Writer, logs, stream bool) error

func (*Container) Changes 

func (container *Container) Changes() ([]archive.Change, error)

func (*Container) Copy 

func (container *Container) Copy(resource string) (io.ReadCloser, error)
func (container *Container) DisableLink(name string)

func (*Container) Exec 

func (container *Container) Exec(execConfig *execConfig) error

func (*Container) Export 

func (container *Container) Export() (archive.Archive, error)

func (*Container) ExportRw 

func (container *Container) ExportRw() (archive.Archive, error)

func (*Container) Exposes 

func (container *Container) Exposes(p nat.Port) bool

Returns true if the container exposes a certain port

func (*Container) FromDisk 

func (container *Container) FromDisk() error

func (*Container) GetExecIDs 

func (container *Container) GetExecIDs() []string

func (*Container) GetImage 

func (container *Container) GetImage() (*image.Image, error)

func (*Container) GetMountLabel 

func (container *Container) GetMountLabel() string

func (*Container) GetProcessLabel 

func (container *Container) GetProcessLabel() string

func (*Container) GetResourcePath 

func (container *Container) GetResourcePath(path string) (string, error)

Evaluates `path` in the scope of the container's basefs, with proper path sanitisation. Symlinks are all scoped to the basefs of the container, as though the container's basefs was `/`.

The basefs of a container is the host-facing path which is bind-mounted as `/` inside the container. This method is essentially used to access a particular path inside the container as though you were a process in that container.

NOTE: The returned path is *only* safely scoped inside the container's basefs 

if no component of the returned path changes (such as a component
symlinking to a different path) between using this method and using the
path. See symlink.FollowSymlinkInScope for more details.

func (*Container) GetRootResourcePath 

func (container *Container) GetRootResourcePath(path string) (string, error)

Evaluates `path` in the scope of the container's root, with proper path sanitisation. Symlinks are all scoped to the root of the container, as though the container's root was `/`.

The root of a container is the host-facing configuration metadata directory. Only use this method to safely access the container's `container.json` or other metadata files. If in doubt, use container.GetResourcePath.

NOTE: The returned path is *only* safely scoped inside the container's root 

if no component of the returned path changes (such as a component
symlinking to a different path) between using this method and using the
path. See symlink.FollowSymlinkInScope for more details.

func (*Container) GetSize 

func (container *Container) GetSize() (int64, int64)

GetSize, return real size, virtual size

func (*Container) HostConfig 

func (container *Container) HostConfig() *runconfig.HostConfig

func (*Container) Kill 

func (container *Container) Kill() error

func (*Container) KillSig 

func (container *Container) KillSig(sig int) error

func (*Container) LogDriverType 

func (c *Container) LogDriverType() string

func (*Container) LogEvent 

func (container *Container) LogEvent(action string)

func (*Container) Mount 

func (container *Container) Mount() error

func (*Container) Output 

func (container *Container) Output() (output []byte, err error)

func (*Container) Pause 

func (container *Container) Pause() error

func (*Container) ReleaseNetwork 

func (container *Container) ReleaseNetwork()

func (*Container) Resize 

func (container *Container) Resize(h, w int) error

func (*Container) Restart 

func (container *Container) Restart(seconds int) error

func (*Container) RestoreNetwork 

func (container *Container) RestoreNetwork() error

func (*Container) RootfsPath 

func (container *Container) RootfsPath() string

This method must be exported to be used from the lxc template This directory is only usable when the container is running

func (*Container) Run 

func (container *Container) Run() error

func (*Container) SetHostConfig 

func (container *Container) SetHostConfig(hostConfig *runconfig.HostConfig)

func (*Container) Start 

func (container *Container) Start() (err error)

func (*Container) Stats 

func (container *Container) Stats() (*execdriver.ResourceStats, error)

func (*Container) Stop 

func (container *Container) Stop(seconds int) error

func (*Container) ToDisk 

func (container *Container) ToDisk() error

func (*Container) Unmount 

func (container *Container) Unmount() error

func (*Container) Unpause 

func (container *Container) Unpause() error

func (*Container) VolumePaths 

func (container *Container) VolumePaths() map[string]struct{}

func (*Container) WriteHostConfig 

func (container *Container) WriteHostConfig() error

type ContainerAttachWithLogsConfig 

type ContainerAttachWithLogsConfig struct {
	InStream                       io.ReadCloser
	OutStream                      io.Writer
	UseStdin, UseStdout, UseStderr bool
	Logs, Stream                   bool
	Multiplex                      bool
}

type ContainerCommitConfig 

type ContainerCommitConfig struct {
	Pause   bool
	Repo    string
	Tag     string
	Author  string
	Comment string
	Changes []string
	Config  *runconfig.Config
}

type ContainerJSONRaw 

type ContainerJSONRaw struct {
	*Container
	HostConfig *runconfig.HostConfig
}

type ContainerLogsConfig 

type ContainerLogsConfig struct {
	Follow, Timestamps   bool
	Tail                 string
	Since                time.Time
	UseStdout, UseStderr bool
	OutStream            io.Writer
}

type ContainerRmConfig 

type ContainerRmConfig struct {
	ForceRemove, RemoveVolume, RemoveLink bool
}

type ContainerWsAttachWithLogsConfig 

type ContainerWsAttachWithLogsConfig struct {
	InStream             io.ReadCloser
	OutStream, ErrStream io.Writer
	Logs, Stream         bool
}

type ContainersConfig 

type ContainersConfig struct {
	All     bool
	Since   string
	Before  string
	Limit   int
	Size    bool
	Filters string
}

type Daemon 

type Daemon struct {
	ID string

	RegistryService *registry.Service
	EventsService   *events.Events
	// contains filtered or unexported fields
}

func NewDaemon 

func NewDaemon(config *Config, registryService *registry.Service) (daemon *Daemon, err error)

func (*Daemon) Changes 

func (daemon *Daemon) Changes(container *Container) ([]archive.Change, error)

func (*Daemon) Children 

func (daemon *Daemon) Children(name string) (map[string]*Container, error)

func (*Daemon) Commit 

func (daemon *Daemon) Commit(container *Container, repository, tag, comment, author string, pause bool, config *runconfig.Config) (*image.Image, error)

Commit creates a new filesystem image from the current state of a container. The image can optionally be tagged into a repository

func (*Daemon) Config 

func (daemon *Daemon) Config() *Config

func (*Daemon) ContainerAttachWithLogs 

func (daemon *Daemon) ContainerAttachWithLogs(name string, c *ContainerAttachWithLogsConfig) error

func (*Daemon) ContainerChanges 

func (daemon *Daemon) ContainerChanges(name string) ([]archive.Change, error)

ContainerChanges returns a list of container fs changes

func (*Daemon) ContainerCopy 

func (daemon *Daemon) ContainerCopy(name string, res string) (io.ReadCloser, error)

func (*Daemon) ContainerCreate 

func (daemon *Daemon) ContainerCreate(name string, config *runconfig.Config, hostConfig *runconfig.HostConfig) (string, []string, error)

func (*Daemon) ContainerExecCreate 

func (d *Daemon) ContainerExecCreate(config *runconfig.ExecConfig) (string, error)

func (*Daemon) ContainerExecInspect 

func (daemon *Daemon) ContainerExecInspect(id string) (*execConfig, error)

func (*Daemon) ContainerExecResize 

func (daemon *Daemon) ContainerExecResize(name string, height, width int) error

func (*Daemon) ContainerExecStart 

func (d *Daemon) ContainerExecStart(execName string, stdin io.ReadCloser, stdout io.Writer, stderr io.Writer) error

func (*Daemon) ContainerExport 

func (daemon *Daemon) ContainerExport(name string, out io.Writer) error

func (*Daemon) ContainerGraph 

func (daemon *Daemon) ContainerGraph() *graphdb.Database

func (*Daemon) ContainerInspect 

func (daemon *Daemon) ContainerInspect(name string) (*types.ContainerJSON, error)

func (*Daemon) ContainerKill 

func (daemon *Daemon) ContainerKill(name string, sig uint64) error

ContainerKill send signal to the container If no signal is given (sig 0), then Kill with SIGKILL and wait for the container to exit. If a signal is given, then just send it to the container and return.

func (*Daemon) ContainerLogs 

func (daemon *Daemon) ContainerLogs(name string, config *ContainerLogsConfig) error

func (*Daemon) ContainerPause 

func (daemon *Daemon) ContainerPause(name string) error

ContainerPause pauses a container

func (*Daemon) ContainerRename 

func (daemon *Daemon) ContainerRename(oldName, newName string) error

func (*Daemon) ContainerResize 

func (daemon *Daemon) ContainerResize(name string, height, width int) error

func (*Daemon) ContainerRestart 

func (daemon *Daemon) ContainerRestart(name string, seconds int) error

func (*Daemon) ContainerRm 

func (daemon *Daemon) ContainerRm(name string, config *ContainerRmConfig) error

func (*Daemon) ContainerStart 

func (daemon *Daemon) ContainerStart(name string, hostConfig *runconfig.HostConfig) error

func (*Daemon) ContainerStats 

func (daemon *Daemon) ContainerStats(name string, stream bool, out io.Writer) error

func (*Daemon) ContainerStop 

func (daemon *Daemon) ContainerStop(name string, seconds int) error

func (*Daemon) ContainerTop 

func (daemon *Daemon) ContainerTop(name string, psArgs string) (*types.ContainerProcessList, error)

func (*Daemon) ContainerUnpause 

func (daemon *Daemon) ContainerUnpause(name string) error

ContainerUnpause unpauses a container

func (*Daemon) ContainerWait 

func (daemon *Daemon) ContainerWait(name string, timeout time.Duration) (int, error)

func (*Daemon) ContainerWsAttachWithLogs 

func (daemon *Daemon) ContainerWsAttachWithLogs(name string, c *ContainerWsAttachWithLogsConfig) error

func (*Daemon) Containers 

func (daemon *Daemon) Containers(config *ContainersConfig) ([]*types.Container, error)

func (*Daemon) Create 

func (daemon *Daemon) Create(config *runconfig.Config, hostConfig *runconfig.HostConfig, name string) (*Container, []string, error)

Create creates a new container from the given configuration with a given name.

func (*Daemon) DeleteVolumes 

func (daemon *Daemon) DeleteVolumes(volumeIDs map[string]struct{})

func (*Daemon) Diff 

func (daemon *Daemon) Diff(container *Container) (archive.Archive, error)

func (*Daemon) Exec 

func (d *Daemon) Exec(c *Container, execConfig *execConfig, pipes *execdriver.Pipes, startCallback execdriver.StartCallback) (int, error)

func (*Daemon) ExecutionDriver 

func (daemon *Daemon) ExecutionDriver() execdriver.Driver

func (*Daemon) Exists 

func (daemon *Daemon) Exists(id string) bool

Exists returns a true if a container of the specified ID or name exists, false otherwise.

func (*Daemon) ForceRm 

func (daemon *Daemon) ForceRm(container *Container) (err error)

func (*Daemon) GenerateSecurityOpt 

func (daemon *Daemon) GenerateSecurityOpt(ipcMode runconfig.IpcMode, pidMode runconfig.PidMode) ([]string, error)

func (*Daemon) Get 

func (daemon *Daemon) Get(prefixOrName string) (*Container, error)

Get looks for a container using the provided information, which could be one of the following inputs from the caller:

  • A full container ID, which will exact match a container in daemon's list
  • A container name, which will only exact match via the GetByName() function
  • A partial container ID prefix (e.g. short ID) of any length that is unique enough to only return a single container object If none of these searches succeed, an error is returned

func (*Daemon) GetByName 

func (daemon *Daemon) GetByName(name string) (*Container, error)

func (*Daemon) Graph 

func (daemon *Daemon) Graph() *graph.Graph

FIXME: this is a convenience function for integration tests which need direct access to daemon.graph. Once the tests switch to using engine and jobs, this method can go away.

func (*Daemon) GraphDriver 

func (daemon *Daemon) GraphDriver() graphdriver.Driver

func (*Daemon) ImageDelete 

func (daemon *Daemon) ImageDelete(name string, force, noprune bool) ([]types.ImageDelete, error)

FIXME: remove ImageDelete's dependency on Daemon, then move to graph/

func (*Daemon) ImageGetCached 

func (daemon *Daemon) ImageGetCached(imgID string, config *runconfig.Config) (*image.Image, error)

func (*Daemon) Kill 

func (daemon *Daemon) Kill(c *Container, sig int) error

func (*Daemon) List 

func (daemon *Daemon) List() []*Container

List returns an array of all containers registered in the daemon.

func (*Daemon) Mount 

func (daemon *Daemon) Mount(container *Container) error

func (*Daemon) Parents 

func (daemon *Daemon) Parents(name string) ([]string, error)

func (*Daemon) Register 

func (daemon *Daemon) Register(container *Container) error

Register makes a container object usable by the daemon as <container.ID> This is a wrapper for register 

func (daemon *Daemon) RegisterLink(parent, child *Container, alias string) error
func (daemon *Daemon) RegisterLinks(container *Container, hostConfig *runconfig.HostConfig) error

func (*Daemon) Repositories 

func (daemon *Daemon) Repositories() *graph.TagStore

func (*Daemon) Rm 

func (daemon *Daemon) Rm(container *Container) (err error)

func (*Daemon) Run 

func (daemon *Daemon) Run(c *Container, pipes *execdriver.Pipes, startCallback execdriver.StartCallback) (execdriver.ExitStatus, error)

func (*Daemon) Shutdown 

func (daemon *Daemon) Shutdown() error

func (*Daemon) Stats 

func (daemon *Daemon) Stats(c *Container) (*execdriver.ResourceStats, error)

func (*Daemon) SubscribeToContainerStats 

func (daemon *Daemon) SubscribeToContainerStats(name string) (chan interface{}, error)

func (*Daemon) SystemConfig 

func (daemon *Daemon) SystemConfig() *sysinfo.SysInfo

func (*Daemon) SystemInfo 

func (daemon *Daemon) SystemInfo() (*types.Info, error)

func (*Daemon) SystemInitPath 

func (daemon *Daemon) SystemInitPath() string

func (*Daemon) Unmount 

func (daemon *Daemon) Unmount(container *Container) error

func (*Daemon) UnsubscribeToContainerStats 

func (daemon *Daemon) UnsubscribeToContainerStats(name string, ch chan interface{}) error

type History 

type History []*Container

History is a convenience type for storing a list of containers, ordered by creation date.

func (*History) Add 

func (history *History) Add(container *Container)

func (*History) Len 

func (history *History) Len() int

func (*History) Less 

func (history *History) Less(i, j int) bool

func (*History) Sort 

func (history *History) Sort()

func (*History) Swap 

func (history *History) Swap(i, j int)

type State 

type State struct {
	sync.Mutex
	Running    bool
	Paused     bool
	Restarting bool
	OOMKilled  bool

	Dead       bool
	Pid        int
	ExitCode   int
	Error      string // contains last known error when starting the container
	StartedAt  time.Time
	FinishedAt time.Time
	// contains filtered or unexported fields
}

func NewState 

func NewState() *State

func (*State) GetExitCode 

func (s *State) GetExitCode() int

func (*State) GetPid 

func (s *State) GetPid() int

func (*State) IsPaused 

func (s *State) IsPaused() bool

func (*State) IsRestarting 

func (s *State) IsRestarting() bool

func (*State) IsRunning 

func (s *State) IsRunning() bool

func (*State) ResetRemovalInProgress 

func (s *State) ResetRemovalInProgress()

func (*State) SetDead 

func (s *State) SetDead()

func (*State) SetPaused 

func (s *State) SetPaused()

func (*State) SetRemovalInProgress 

func (s *State) SetRemovalInProgress() error

func (*State) SetRestarting 

func (s *State) SetRestarting(exitStatus *execdriver.ExitStatus)

SetRestarting is when docker handles the auto restart of containers when they are in the middle of a stop and being restarted again

func (*State) SetRunning 

func (s *State) SetRunning(pid int)

func (*State) SetStopped 

func (s *State) SetStopped(exitStatus *execdriver.ExitStatus)

func (*State) SetUnpaused 

func (s *State) SetUnpaused()

func (*State) StateString 

func (s *State) StateString() string

StateString returns a single string to describe state

func (*State) String 

func (s *State) String() string

String returns a human-readable description of the state

func (*State) WaitRunning 

func (s *State) WaitRunning(timeout time.Duration) (int, error)

WaitRunning waits until state is running. If state already running it returns immediately. If you want wait forever you must supply negative timeout. Returns pid, that was passed to SetRunning

func (*State) WaitStop 

func (s *State) WaitStop(timeout time.Duration) (int, error)

WaitStop waits until state is stopped. If state already stopped it returns immediately. If you want wait forever you must supply negative timeout. Returns exit code, that was passed to SetStopped

type StreamConfig 

type StreamConfig struct {
	// contains filtered or unexported fields
}

func (*StreamConfig) StderrLogPipe 

func (streamConfig *StreamConfig) StderrLogPipe() io.ReadCloser

func (*StreamConfig) StderrPipe 

func (streamConfig *StreamConfig) StderrPipe() io.ReadCloser

func (*StreamConfig) StdinPipe 

func (streamConfig *StreamConfig) StdinPipe() io.WriteCloser

func (*StreamConfig) StdoutLogPipe 

func (streamConfig *StreamConfig) StdoutLogPipe() io.ReadCloser

func (*StreamConfig) StdoutPipe 

func (streamConfig *StreamConfig) StdoutPipe() io.ReadCloser

Source Files

View all Source files

Directories

Path Synopsis
execdrivers
lxc
native
native/template
aufs
btrfs
devmapper
graphtest
overlay
vfs
zfs
journald
jsonfilelog
syslog
bridge
ipallocator
portallocator
portmapper

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