errors

README

Docker 'errors' package

This package contains all of the error messages generated by the Docker engine that might be exposed via the Docker engine's REST API.

Each top-level engine package will have its own file in this directory so that there's a clear grouping of errors, instead of just one big file. The errors for each package are defined here instead of within their respective package structure so that Docker CLI code that may need to import these error definition files will not need to know or understand the engine's package/directory structure. In other words, all they should need to do is import .../docker/errors and they will automatically pick up all Docker engine defined errors. This also gives the engine developers the freedom to change the engine packaging structure (e.g. to CRUD packages) without worrying about breaking existing clients.

These errors are defined using the 'errcode' package. The errcode package allows for each error to be typed and include all information necessary to have further processing done on them if necessary. In particular, each error includes:

• Value - a unique string (in all caps) associated with this error. Typically, this string is the same name as the variable name of the error (w/o the ErrorCode text) but in all caps.

• Message - the human readable sentence that will be displayed for this error. It can contain '%s' substitutions that allows for the code generating the error to specify values that will be inserted in the string prior to being displayed to the end-user. The WithArgs() function can be used to specify the insertion strings. Note, the evaluation of the strings will be done at the time WithArgs() is called.

• Description - additional human readable text to further explain the circumstances of the error situation.

• HTTPStatusCode - when the error is returned back to a CLI, this value will be used to populate the HTTP status code. If not present the default value will be StatusInternalServerError, 500.

Not all errors generated within the engine's executable will be propagated back to the engine's API layer. For example, it is expected that errors generated by vendored code (under docker/vendor) and packaged code (under docker/pkg) will be converted into errors defined by this package.

When processing an errcode error, if you are looking for a particular error then you can do something like:

import derr "github.com/docker/docker/errors"

...

err := someFunc()
if err.ErrorCode() == derr.ErrorCodeNoSuchContainer {
	...
}

Documentation

Index

• Variables

Variables

var (
	// ErrorCodeAtLeastOneArg is generated when the parser comes across a
	// Dockerfile command that doesn't have any args.
	ErrorCodeAtLeastOneArg = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "ATLEASTONEARG",
		Message:        "%s requires at least one argument",
		Description:    "The specified command requires at least one argument",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeExactlyOneArg is generated when the parser comes across a
	// Dockerfile command that requires exactly one arg but got less/more.
	ErrorCodeExactlyOneArg = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "EXACTLYONEARG",
		Message:        "%s requires exactly one argument",
		Description:    "The specified command requires exactly one argument",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeAtLeastTwoArgs is generated when the parser comes across a
	// Dockerfile command that requires at least two args but got less.
	ErrorCodeAtLeastTwoArgs = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "ATLEASTTWOARGS",
		Message:        "%s requires at least two arguments",
		Description:    "The specified command requires at least two arguments",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeTooManyArgs is generated when the parser comes across a
	// Dockerfile command that has more args than it should
	ErrorCodeTooManyArgs = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "TOOMANYARGS",
		Message:        "Bad input to %s, too many args",
		Description:    "The specified command was passed too many arguments",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeChainOnBuild is generated when the parser comes across a
	// Dockerfile command that is trying to chain ONBUILD commands.
	ErrorCodeChainOnBuild = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "CHAINONBUILD",
		Message:        "Chaining ONBUILD via `ONBUILD ONBUILD` isn't allowed",
		Description:    "ONBUILD Dockerfile commands aren't allow on ONBUILD commands",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeBadOnBuildCmd is generated when the parser comes across a
	// an ONBUILD Dockerfile command with an invalid trigger/command.
	ErrorCodeBadOnBuildCmd = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "BADONBUILDCMD",
		Message:        "%s isn't allowed as an ONBUILD trigger",
		Description:    "The specified ONBUILD command isn't allowed",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeMissingFrom is generated when the Dockerfile is missing
	// a FROM command.
	ErrorCodeMissingFrom = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "MISSINGFROM",
		Message:        "Please provide a source image with `from` prior to run",
		Description:    "The Dockerfile is missing a FROM command",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeNotOnWindows is generated when the specified Dockerfile
	// command is not supported on Windows.
	ErrorCodeNotOnWindows = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "NOTONWINDOWS",
		Message:        "%s is not supported on Windows",
		Description:    "The specified Dockerfile command is not supported on Windows",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeVolumeEmpty is generated when the specified Volume string
	// is empty.
	ErrorCodeVolumeEmpty = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "VOLUMEEMPTY",
		Message:        "Volume specified can not be an empty string",
		Description:    "The specified volume can not be an empty string",
		HTTPStatusCode: http.StatusInternalServerError,
	})
)

var (
	// ErrorCodeNoSuchContainer is generated when we look for a container by
	// name or ID and we can't find it.
	ErrorCodeNoSuchContainer = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "NOSUCHCONTAINER",
		Message:        "no such id: %s",
		Description:    "The specified container can not be found",
		HTTPStatusCode: http.StatusNotFound,
	})

	// ErrorCodeUnregisteredContainer is generated when we try to load
	// a storage driver for an unregistered container
	ErrorCodeUnregisteredContainer = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "UNREGISTEREDCONTAINER",
		Message:        "Can't load storage driver for unregistered container %s",
		Description:    "An attempt was made to load the storage driver for a container that is not registered with the daemon",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeContainerBeingRemoved is generated when an attempt to start
	// a container is made but its in the process of being removed, or is dead.
	ErrorCodeContainerBeingRemoved = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "CONTAINERBEINGREMOVED",
		Message:        "Container is marked for removal and cannot be started.",
		Description:    "An attempt was made to start a container that is in the process of being deleted",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeUnpauseContainer is generated when we attempt to stop a
	// container but its paused.
	ErrorCodeUnpauseContainer = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "UNPAUSECONTAINER",
		Message:        "Container %s is paused. Unpause the container before stopping",
		Description:    "The specified container is paused, before it can be stopped it must be unpaused",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeAlreadyPaused is generated when we attempt to pause a
	// container when its already paused.
	ErrorCodeAlreadyPaused = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "ALREADYPAUSED",
		Message:        "Container %s is already paused",
		Description:    "The specified container is already in the paused state",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeNotPaused is generated when we attempt to unpause a
	// container when its not paused.
	ErrorCodeNotPaused = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "NOTPAUSED",
		Message:        "Container %s is not paused",
		Description:    "The specified container can not be unpaused because it is not in a paused state",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeImageUnregContainer is generated when we attempt to get the
	// image of an unknown/unregistered container.
	ErrorCodeImageUnregContainer = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "IMAGEUNREGCONTAINER",
		Message:        "Can't get image of unregistered container",
		Description:    "An attempt to retrieve the image of a container was made but the container is not registered",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeEmptyID is generated when an ID is the emptry string.
	ErrorCodeEmptyID = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "EMPTYID",
		Message:        "Invalid empty id",
		Description:    "An attempt was made to register a container but the container's ID can not be an empty string",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeLoggingFactory is generated when we could not load the
	// log driver.
	ErrorCodeLoggingFactory = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "LOGGINGFACTORY",
		Message:        "Failed to get logging factory: %v",
		Description:    "An attempt was made to register a container but the container's ID can not be an empty string",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeInitLogger is generated when we could not initialize
	// the logging driver.
	ErrorCodeInitLogger = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "INITLOGGER",
		Message:        "Failed to initialize logging driver: %v",
		Description:    "An error occurred while trying to initialize the logging driver",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeNotRunning is generated when we need to verify that
	// a container is running, but its not.
	ErrorCodeNotRunning = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "NOTRUNNING",
		Message:        "Container %s is not running",
		Description:    "The specified action can not be taken due to the container not being in a running state",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeLinkNotRunning is generated when we try to link to a
	// container that is not running.
	ErrorCodeLinkNotRunning = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "LINKNOTRUNNING",
		Message:        "Cannot link to a non running container: %s AS %s",
		Description:    "An attempt was made to link to a container but the container is not in a running state",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeDeviceInfo is generated when there is an error while trying
	// to get info about a custom device.
	// container that is not running.
	ErrorCodeDeviceInfo = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "DEVICEINFO",
		Message:        "error gathering device information while adding custom device %q: %s",
		Description:    "There was an error while trying to retrieve the information about a custom device",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeEmptyEndpoint is generated when the endpoint for a port
	// map is nil.
	ErrorCodeEmptyEndpoint = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "EMPTYENDPOINT",
		Message:        "invalid endpoint while building port map info",
		Description:    "The specified endpoint for the port mapping is empty",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeEmptyNetwork is generated when the networkSettings for a port
	// map is nil.
	ErrorCodeEmptyNetwork = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "EMPTYNETWORK",
		Message:        "invalid networksettings while building port map info",
		Description:    "The specified endpoint for the port mapping is empty",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeParsingPort is generated when there is an error parsing
	// a "port" string.
	ErrorCodeParsingPort = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "PARSINGPORT",
		Message:        "Error parsing Port value(%v):%v",
		Description:    "There was an error while trying to parse the specified 'port' value",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeNoSandbox is generated when we can't find the specified
	// sandbox(network) by ID.
	ErrorCodeNoSandbox = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "NOSANDBOX",
		Message:        "error locating sandbox id %s: %v",
		Description:    "There was an error trying to located the specified networking sandbox",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeNetworkUpdate is generated when there is an error while
	// trying update a network/sandbox config.
	ErrorCodeNetworkUpdate = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "NETWORKUPDATE",
		Message:        "Update network failed: %v",
		Description:    "There was an error trying to update the configuration information of the specified network sandbox",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeNetworkRefresh is generated when there is an error while
	// trying refresh a network/sandbox config.
	ErrorCodeNetworkRefresh = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "NETWORKREFRESH",
		Message:        "Update network failed: Failure in refresh sandbox %s: %v",
		Description:    "There was an error trying to refresh the configuration information of the specified network sandbox",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeHostPort is generated when there was an error while trying
	// to parse a "host/port" string.
	ErrorCodeHostPort = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "HOSTPORT",
		Message:        "Error parsing HostPort value(%s):%v",
		Description:    "There was an error trying to parse the specified 'HostPort' value",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeNetworkConflict is generated when we try to publish a service
	// in network mode.
	ErrorCodeNetworkConflict = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "NETWORKCONFLICT",
		Message:        "conflicting options: publishing a service and network mode",
		Description:    "It is not possible to publish a service when it is in network mode",
		HTTPStatusCode: http.StatusConflict,
	})

	// ErrorCodeJoinInfo is generated when we failed to update a container's
	// join info.
	ErrorCodeJoinInfo = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "JOININFO",
		Message:        "Updating join info failed: %v",
		Description:    "There was an error during an attempt update a container's join information",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeIPCRunning is generated when we try to join a container's
	// IPC but its not running.
	ErrorCodeIPCRunning = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "IPCRUNNING",
		Message:        "cannot join IPC of a non running container: %s",
		Description:    "An attempt was made to join the IPC of a container, but the container is not running",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeNotADir is generated when we try to create a directory
	// but the path isn't a dir.
	ErrorCodeNotADir = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "NOTADIR",
		Message:        "Cannot mkdir: %s is not a directory",
		Description:    "An attempt was made create a directory, but the location in which it is being created is not a directory",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeParseContainer is generated when the reference to a
	// container doesn't include a ":" (another container).
	ErrorCodeParseContainer = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "PARSECONTAINER",
		Message:        "no container specified to join network",
		Description:    "The specified reference to a container is missing a ':' as a separator between 'container' and 'name'/'id'",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeJoinSelf is generated when we try to network to ourselves.
	ErrorCodeJoinSelf = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "JOINSELF",
		Message:        "cannot join own network",
		Description:    "An attempt was made to have a container join its own network",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeJoinRunning is generated when we try to network to ourselves.
	ErrorCodeJoinRunning = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "JOINRUNNING",
		Message:        "cannot join network of a non running container: %s",
		Description:    "An attempt to join the network of a container, but that container isn't running",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeModeNotContainer is generated when we try to network to
	// another container but the mode isn't 'container'.
	ErrorCodeModeNotContainer = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "MODENOTCONTAINER",
		Message:        "network mode not set to container",
		Description:    "An attempt was made to connect to a container's network but the mode wasn't set to 'container'",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeRemovingVolume is generated when we try remove a mount
	// point (volume) but fail.
	ErrorCodeRemovingVolume = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "REMOVINGVOLUME",
		Message:        "Error removing volumes:\n%v",
		Description:    "There was an error while trying to remove the mount point (volume) of a container",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeInvalidNetworkMode is generated when an invalid network
	// mode value is specified.
	ErrorCodeInvalidNetworkMode = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "INVALIDNETWORKMODE",
		Message:        "invalid network mode: %s",
		Description:    "The specified networking mode is not valid",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeGetGraph is generated when there was an error while
	// trying to find a graph/image.
	ErrorCodeGetGraph = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "GETGRAPH",
		Message:        "Failed to graph.Get on ImageID %s - %s",
		Description:    "There was an error trying to retrieve the image for the specified image ID",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeGetLayer is generated when there was an error while
	// trying to retrieve a particular layer of an image.
	ErrorCodeGetLayer = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "GETLAYER",
		Message:        "Failed to get layer path from graphdriver %s for ImageID %s - %s",
		Description:    "There was an error trying to retrieve the layer of the specified image",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodePutLayer is generated when there was an error while
	// trying to 'put' a particular layer of an image.
	ErrorCodePutLayer = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "PUTLAYER",
		Message:        "Failed to put layer path from graphdriver %s for ImageID %s - %s",
		Description:    "There was an error trying to store a layer for the specified image",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeGetLayerMetadata is generated when there was an error while
	// trying to retrieve the metadata of a layer of an image.
	ErrorCodeGetLayerMetadata = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "GETLAYERMETADATA",
		Message:        "Failed to get layer metadata - %s",
		Description:    "There was an error trying to retrieve the metadata of a layer for the specified image",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeEmptyConfig is generated when the input config data
	// is empty.
	ErrorCodeEmptyConfig = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "EMPTYCONFIG",
		Message:        "Config cannot be empty in order to create a container",
		Description:    "While trying to create a container, the specified configuration information was empty",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeNoSuchImageHash is generated when we can't find the
	// specified image by its hash
	ErrorCodeNoSuchImageHash = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "NOSUCHIMAGEHASH",
		Message:        "No such image: %s",
		Description:    "An attempt was made to find an image by its hash, but the lookup failed",
		HTTPStatusCode: http.StatusNotFound,
	})

	// ErrorCodeNoSuchImageTag is generated when we can't find the
	// specified image byt its name/tag.
	ErrorCodeNoSuchImageTag = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "NOSUCHIMAGETAG",
		Message:        "No such image: %s:%s",
		Description:    "An attempt was made to find an image by its name/tag, but the lookup failed",
		HTTPStatusCode: http.StatusNotFound,
	})

	// ErrorCodeMountOverFile is generated when we try to mount a volume
	// over an existing file (but not a dir).
	ErrorCodeMountOverFile = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "MOUNTOVERFILE",
		Message:        "cannot mount volume over existing file, file exists %s",
		Description:    "An attempt was made to mount a volume at the same location as a pre-existing file",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeMountSetup is generated when we can't define a mount point
	// due to the source and destination being undefined.
	ErrorCodeMountSetup = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "MOUNTSETUP",
		Message:        "Unable to setup mount point, neither source nor volume defined",
		Description:    "An attempt was made to setup a mount point, but the source and destination are undefined",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeVolumeInvalidMode is generated when we the mode of a volume
	// mount is invalid.
	ErrorCodeVolumeInvalidMode = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "VOLUMEINVALIDMODE",
		Message:        "invalid mode for volumes-from: %s",
		Description:    "An invalid 'mode' was specified in the mount request",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeVolumeInvalid is generated when the format fo the
	// volume specification isn't valid.
	ErrorCodeVolumeInvalid = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "VOLUMEINVALID",
		Message:        "Invalid volume specification: %s",
		Description:    "An invalid 'volume' was specified in the mount request",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeVolumeAbs is generated when path to a volume isn't absolute.
	ErrorCodeVolumeAbs = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "VOLUMEABS",
		Message:        "Invalid volume destination path: %s mount path must be absolute.",
		Description:    "An invalid 'destination' path was specified in the mount request, it must be an absolute path",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeVolumeFromBlank is generated when path to a volume is blank.
	ErrorCodeVolumeFromBlank = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "VOLUMEFROMBLANK",
		Message:        "malformed volumes-from specification: %s",
		Description:    "An invalid 'destination' path was specified in the mount request, it must not be blank",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeVolumeMode is generated when 'mode' for a volume
	// isn't a valid.
	ErrorCodeVolumeMode = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "VOLUMEMODE",
		Message:        "invalid mode for volumes-from: %s",
		Description:    "An invalid 'mode' path was specified in the mount request",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeVolumeDup is generated when we try to mount two volumes
	// to the same path.
	ErrorCodeVolumeDup = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "VOLUMEDUP",
		Message:        "Duplicate bind mount %s",
		Description:    "An attempt was made to mount a volume but the specified destination location is already used in a previous mount",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeCantUnpause is generated when there's an error while trying
	// to unpause a container.
	ErrorCodeCantUnpause = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "CANTUNPAUSE",
		Message:        "Cannot unpause container %s: %s",
		Description:    "An error occurred while trying to unpause the specified container",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodePSError is generated when trying to run 'ps'.
	ErrorCodePSError = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "PSError",
		Message:        "Error running ps: %s",
		Description:    "There was an error trying to run the 'ps' command in the specified container",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeNoPID is generated when looking for the PID field in the
	// ps output.
	ErrorCodeNoPID = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "NOPID",
		Message:        "Couldn't find PID field in ps output",
		Description:    "There was no 'PID' field in the output of the 'ps' command that was executed",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeBadPID is generated when we can't convert a PID to an int.
	ErrorCodeBadPID = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "BADPID",
		Message:        "Unexpected pid '%s': %s",
		Description:    "While trying to parse the output of the 'ps' command, the 'PID' field was not an integer",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeNoTop is generated when we try to run 'top' but can't
	// because we're on windows.
	ErrorCodeNoTop = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "NOTOP",
		Message:        "Top is not supported on Windows",
		Description:    "The 'top' command is not supported on Windows",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeStopped is generated when we try to stop a container
	// that is already stopped.
	ErrorCodeStopped = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "STOPPED",
		Message:        "Container already stopped",
		Description:    "An attempt was made to stop a container, but the container is already stopped",
		HTTPStatusCode: http.StatusNotModified,
	})

	// ErrorCodeCantStop is generated when we try to stop a container
	// but failed for some reason.
	ErrorCodeCantStop = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "CANTSTOP",
		Message:        "Cannot stop container %s: %s\n",
		Description:    "An error occurred while tring to stop the specified container",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeBadCPUFields is generated when the number of CPU fields is
	// less than 8.
	ErrorCodeBadCPUFields = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "BADCPUFIELDS",
		Message:        "invalid number of cpu fields",
		Description:    "While reading the '/proc/stat' file, the number of 'cpu' fields is less than 8",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeBadCPUInt is generated the CPU field can't be parsed as an int.
	ErrorCodeBadCPUInt = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "BADCPUINT",
		Message:        "Unable to convert value %s to int: %s",
		Description:    "While reading the '/proc/stat' file, the 'CPU' field could not be parsed as an integer",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeBadStatFormat is generated the output of the stat info
	// isn't parseable.
	ErrorCodeBadStatFormat = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "BADSTATFORMAT",
		Message:        "invalid stat format",
		Description:    "There was an error trying to parse the '/proc/stat' file",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeTimedOut is generated when a timer expires.
	ErrorCodeTimedOut = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "TIMEDOUT",
		Message:        "Timed out: %v",
		Description:    "A timer expired",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeAlreadyRemoving is generated when we try to remove a
	// container that is already being removed.
	ErrorCodeAlreadyRemoving = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "ALREADYREMOVING",
		Message:        "Status is already RemovalInProgress",
		Description:    "An attempt to remove a container was made, but the container is already in the process of being removed",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeStartPaused is generated when we start a paused container.
	ErrorCodeStartPaused = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "STARTPAUSED",
		Message:        "Cannot start a paused container, try unpause instead.",
		Description:    "An attempt to start a container was made, but the container is paused. Unpause it first",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeAlreadyStarted is generated when we try to start a container
	// that is already running.
	ErrorCodeAlreadyStarted = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "ALREADYSTARTED",
		Message:        "Container already started",
		Description:    "An attempt to start a container was made, but the container is already started",
		HTTPStatusCode: http.StatusNotModified,
	})

	// ErrorCodeHostConfigStart is generated when a HostConfig is passed
	// into the start command.
	ErrorCodeHostConfigStart = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "HOSTCONFIGSTART",
		Message:        "Supplying a hostconfig on start is not supported. It should be supplied on create",
		Description:    "The 'start' command does not accept 'HostConfig' data, try using the 'create' command instead",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeCantStart is generated when an error occurred while
	// trying to start a container.
	ErrorCodeCantStart = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "CANTSTART",
		Message:        "Cannot start container %s: %s",
		Description:    "There was an error while trying to start a container",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeCantRestart is generated when an error occurred while
	// trying to restart a container.
	ErrorCodeCantRestart = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "CANTRESTART",
		Message:        "Cannot restart container %s: %s",
		Description:    "There was an error while trying to restart a container",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeEmptyRename is generated when one of the names on a
	// rename is empty.
	ErrorCodeEmptyRename = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "EMPTYRENAME",
		Message:        "Neither old nor new names may be empty",
		Description:    "An attempt was made to rename a container but either the old or new names were blank",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeRenameTaken is generated when we try to rename but the
	// new name isn't available.
	ErrorCodeRenameTaken = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "RENAMETAKEN",
		Message:        "Error when allocating new name: %s",
		Description:    "The new name specified on the 'rename' command is already being used",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeRenameDelete is generated when we try to rename but
	// failed trying to delete the old container.
	ErrorCodeRenameDelete = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "RENAMEDELETE",
		Message:        "Failed to delete container %q: %v",
		Description:    "There was an error trying to delete the specified container",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodePauseError is generated when we try to pause a container
	// but failed.
	ErrorCodePauseError = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "PAUSEERROR",
		Message:        "Cannot pause container %s: %s",
		Description:    "There was an error trying to pause the specified container",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeNeedStream is generated when we try to stream a container's
	// logs but no output stream was specified.
	ErrorCodeNeedStream = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "NEEDSTREAM",
		Message:        "You must choose at least one stream",
		Description:    "While trying to stream a container's logs, no output stream was specified",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeDanglingOne is generated when we try to specify more than one
	// 'dangling' specifier.
	ErrorCodeDanglingOne = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "DANLGINGONE",
		Message:        "Conflict: cannot use more than 1 value for `dangling` filter",
		Description:    "The specified 'dangling' filter may not have more than one value",
		HTTPStatusCode: http.StatusConflict,
	})

	// ErrorCodeImgDelUsed is generated when we try to delete an image
	// but it is being used.
	ErrorCodeImgDelUsed = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "IMGDELUSED",
		Message:        "conflict: unable to remove repository reference %q (must force) - container %s is using its referenced image %s",
		Description:    "An attempt was made to delete an image but it is currently being used",
		HTTPStatusCode: http.StatusConflict,
	})

	// ErrorCodeImgNoParent is generated when we try to find an image's
	// parent but its not in the graph.
	ErrorCodeImgNoParent = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "IMGNOPARENT",
		Message:        "unable to get parent image: %v",
		Description:    "There was an error trying to find an image's parent, it was not in the graph",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeExportFailed is generated when an export fails.
	ErrorCodeExportFailed = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "EXPORTFAILED",
		Message:        "%s: %s",
		Description:    "There was an error during an export operation",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeExecResize is generated when we try to resize an exec
	// but its not running.
	ErrorCodeExecResize = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "EXECRESIZE",
		Message:        "Exec %s is not running, so it can not be resized.",
		Description:    "An attempt was made to resize an 'exec', but the 'exec' is not running",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeContainerNotRunning is generated when we try to get the info
	// on an exec but the container is not running.
	ErrorCodeContainerNotRunning = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "CONTAINERNOTRUNNING",
		Message:        "Container %s is not running: %s",
		Description:    "An attempt was made to retrieve the information about an 'exec' but the container is not running",
		HTTPStatusCode: http.StatusConflict,
	})

	// ErrorCodeNoExecID is generated when we try to get the info
	// on an exec but it can't be found.
	ErrorCodeNoExecID = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "NOEXECID",
		Message:        "No such exec instance '%s' found in daemon",
		Description:    "The specified 'exec' instance could not be found",
		HTTPStatusCode: http.StatusNotFound,
	})

	// ErrorCodeExecPaused is generated when we try to start an exec
	// but the container is paused.
	ErrorCodeExecPaused = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "EXECPAUSED",
		Message:        "Container %s is paused, unpause the container before exec",
		Description:    "An attempt to start an 'exec' was made, but the owning container is paused",
		HTTPStatusCode: http.StatusConflict,
	})

	// ErrorCodeExecRunning is generated when we try to start an exec
	// but its already running.
	ErrorCodeExecRunning = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "EXECRUNNING",
		Message:        "Error: Exec command %s is already running",
		Description:    "An attempt to start an 'exec' was made, but 'exec' is already running",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeExecCantRun is generated when we try to start an exec
	// but it failed for some reason.
	ErrorCodeExecCantRun = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "EXECCANTRUN",
		Message:        "Cannot run exec command %s in container %s: %s",
		Description:    "An attempt to start an 'exec' was made, but an error occurred",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeExecAttach is generated when we try to attach to an exec
	// but failed.
	ErrorCodeExecAttach = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "EXECATTACH",
		Message:        "attach failed with error: %s",
		Description:    "There was an error while trying to attach to an 'exec'",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeExecContainerStopped is generated when we try to start
	// an exec but then the container stopped.
	ErrorCodeExecContainerStopped = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "EXECCONTAINERSTOPPED",
		Message:        "container stopped while running exec",
		Description:    "An attempt was made to start an 'exec' but the owning container is in the 'stopped' state",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeDefaultName is generated when we try to delete the
	// default name of a container.
	ErrorCodeDefaultName = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "DEFAULTNAME",
		Message:        "Conflict, cannot remove the default name of the container",
		Description:    "An attempt to delete the default name of a container was made, but that is not allowed",
		HTTPStatusCode: http.StatusConflict,
	})

	// ErrorCodeNoParent is generated when we try to delete a container
	// but we can't find its parent image.
	ErrorCodeNoParent = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "NOPARENT",
		Message:        "Cannot get parent %s for name %s",
		Description:    "An attempt was made to delete a container but its parent image could not be found",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeCantDestroy is generated when we try to delete a container
	// but failed for some reason.
	ErrorCodeCantDestroy = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "CANTDESTROY",
		Message:        "Cannot destroy container %s: %v",
		Description:    "An attempt was made to delete a container but it failed",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeRmRunning is generated when we try to delete a container
	// but its still running.
	ErrorCodeRmRunning = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "RMRUNNING",
		Message:        "Conflict, You cannot remove a running container. Stop the container before attempting removal or use -f",
		Description:    "An attempt was made to delete a container but the container is still running, try to either stop it first or use '-f'",
		HTTPStatusCode: http.StatusConflict,
	})

	// ErrorCodeRmFailed is generated when we try to delete a container
	// but it failed for some reason.
	ErrorCodeRmFailed = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "RMFAILED",
		Message:        "Could not kill running container, cannot remove - %v",
		Description:    "An error occurred while trying to delete a running container",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeRmNotFound is generated when we try to delete a container
	// but couldn't find it.
	ErrorCodeRmNotFound = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "RMNOTFOUND",
		Message:        "Could not kill running container, cannot remove - %v",
		Description:    "An attempt to delete a container was made but the container could not be found",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeRmState is generated when we try to delete a container
	// but couldn't set its state to RemovalInProgress.
	ErrorCodeRmState = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "RMSTATE",
		Message:        "Failed to set container state to RemovalInProgress: %s",
		Description:    "An attempt to delete a container was made, but there as an error trying to set its state to 'RemovalInProgress'",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeRmDriverFS is generated when we try to delete a container
	// but the driver failed to delete its filesystem.
	ErrorCodeRmDriverFS = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "RMDRIVERFS",
		Message:        "Driver %s failed to remove root filesystem %s: %s",
		Description:    "While trying to delete a container, the driver failed to remove the root filesystem",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeRmInit is generated when we try to delete a container
	// but failed deleting its init filesystem.
	ErrorCodeRmInit = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "RMINIT",
		Message:        "Driver %s failed to remove init filesystem %s: %s",
		Description:    "While trying to delete a container, the driver failed to remove the init filesystem",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeRmFS is generated when we try to delete a container
	// but failed deleting its filesystem.
	ErrorCodeRmFS = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "RMFS",
		Message:        "Unable to remove filesystem for %v: %v",
		Description:    "While trying to delete a container, the driver failed to remove the filesystem",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeRmExecDriver is generated when we try to delete a container
	// but failed deleting its exec driver data.
	ErrorCodeRmExecDriver = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "RMEXECDRIVER",
		Message:        "Unable to remove execdriver data for %s: %s",
		Description:    "While trying to delete a container, there was an error trying to remove th exec driver data",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeRmVolumeInUse is generated when we try to delete a container
	// but failed deleting a volume because its being used.
	ErrorCodeRmVolumeInUse = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "RMVOLUMEINUSE",
		Message:        "Conflict: %v",
		Description:    "While trying to delete a container, one of its volumes is still being used",
		HTTPStatusCode: http.StatusConflict,
	})

	// ErrorCodeRmVolume is generated when we try to delete a container
	// but failed deleting a volume.
	ErrorCodeRmVolume = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "RMVOLUME",
		Message:        "Error while removing volume %s: %v",
		Description:    "While trying to delete a container, there was an error trying to delete one of its volumes",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeInvalidCpusetCpus is generated when user provided cpuset CPUs
	// are invalid.
	ErrorCodeInvalidCpusetCpus = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "INVALIDCPUSETCPUS",
		Message:        "Invalid value %s for cpuset cpus.",
		Description:    "While verifying the container's 'HostConfig', CpusetCpus value was in an incorrect format",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeInvalidCpusetMems is generated when user provided cpuset mems
	// are invalid.
	ErrorCodeInvalidCpusetMems = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "INVALIDCPUSETMEMS",
		Message:        "Invalid value %s for cpuset mems.",
		Description:    "While verifying the container's 'HostConfig', CpusetMems value was in an incorrect format",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeNotAvailableCpusetCpus is generated when user provided cpuset
	// CPUs aren't available in the container's cgroup.
	ErrorCodeNotAvailableCpusetCpus = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "NOTAVAILABLECPUSETCPUS",
		Message:        "Requested CPUs are not available - requested %s, available: %s.",
		Description:    "While verifying the container's 'HostConfig', cpuset CPUs provided aren't available in the container's cgroup available set",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorCodeNotAvailableCpusetMems is generated when user provided cpuset
	// memory nodes aren't available in the container's cgroup.
	ErrorCodeNotAvailableCpusetMems = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "NOTAVAILABLECPUSETMEMS",
		Message:        "Requested memory nodes are not available - requested %s, available: %s.",
		Description:    "While verifying the container's 'HostConfig', cpuset memory nodes provided aren't available in the container's cgroup available set",
		HTTPStatusCode: http.StatusInternalServerError,
	})

	// ErrorVolumeNameTaken is generated when an error occurred while
	// trying to create a volume that has existed using different driver.
	ErrorVolumeNameTaken = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "VOLUME_NAME_TAKEN",
		Message:        "A volume name %s already exists with the %s driver. Choose a different volume name.",
		Description:    "An attempt to create a volume using a driver but the volume already exists with a different driver",
		HTTPStatusCode: http.StatusInternalServerError,
	})
)

var (
	// ErrorCodeNewerClientVersion is generated when a request from a client
	// specifies a higher version than the server supports.
	ErrorCodeNewerClientVersion = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "NEWERCLIENTVERSION",
		Message:        "client is newer than server (client API version: %s, server API version: %s)",
		Description:    "The client version is higher than the server version",
		HTTPStatusCode: http.StatusBadRequest,
	})

	// ErrorCodeOldClientVersion is generated when a request from a client
	// specifies a version lower than the minimum version supported by the server.
	ErrorCodeOldClientVersion = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "OLDCLIENTVERSION",
		Message:        "client version %s is too old. Minimum supported API version is %s, please upgrade your client to a newer version",
		Description:    "The client version is too old for the server",
		HTTPStatusCode: http.StatusBadRequest,
	})
)

var (
	// ErrorCodeInvalidImageID is generated when image id specified is incorrectly formatted.
	ErrorCodeInvalidImageID = errcode.Register(errGroup, errcode.ErrorDescriptor{
		Value:          "INVALIDIMAGEID",
		Message:        "image ID '%s' is invalid ",
		Description:    "The specified image id is incorrectly formatted",
		HTTPStatusCode: http.StatusInternalServerError,
	})
)