github.com/walkingsparrow/docker@v1.4.2-0.20151218153551-b708a2249bfa/api/client/lib/errors.go (about)

     1  package lib
     2  
     3  import (
     4  	"errors"
     5  	"fmt"
     6  )
     7  
     8  // ErrConnectionFailed is a error raised when the connection between the client and the server failed.
     9  var ErrConnectionFailed = errors.New("Cannot connect to the Docker daemon. Is the docker daemon running on this host?")
    10  
    11  // imageNotFoundError implements an error returned when an image is not in the docker host.
    12  type imageNotFoundError struct {
    13  	imageID string
    14  }
    15  
    16  // Error returns a string representation of an imageNotFoundError
    17  func (i imageNotFoundError) Error() string {
    18  	return fmt.Sprintf("Error: No such image: %s", i.imageID)
    19  }
    20  
    21  // IsErrImageNotFound returns true if the error is caused
    22  // when an image is not found in the docker host.
    23  func IsErrImageNotFound(err error) bool {
    24  	_, ok := err.(imageNotFoundError)
    25  	return ok
    26  }
    27  
    28  // containerNotFoundError implements an error returned when a container is not in the docker host.
    29  type containerNotFoundError struct {
    30  	containerID string
    31  }
    32  
    33  // Error returns a string representation of an containerNotFoundError
    34  func (e containerNotFoundError) Error() string {
    35  	return fmt.Sprintf("Error: No such container: %s", e.containerID)
    36  }
    37  
    38  // IsErrContainerNotFound returns true if the error is caused
    39  // when a container is not found in the docker host.
    40  func IsErrContainerNotFound(err error) bool {
    41  	_, ok := err.(containerNotFoundError)
    42  	return ok
    43  }
    44  
    45  // networkNotFoundError implements an error returned when a network is not in the docker host.
    46  type networkNotFoundError struct {
    47  	networkID string
    48  }
    49  
    50  // Error returns a string representation of an networkNotFoundError
    51  func (e networkNotFoundError) Error() string {
    52  	return fmt.Sprintf("Error: No such network: %s", e.networkID)
    53  }
    54  
    55  // IsErrNetworkNotFound returns true if the error is caused
    56  // when a network is not found in the docker host.
    57  func IsErrNetworkNotFound(err error) bool {
    58  	_, ok := err.(networkNotFoundError)
    59  	return ok
    60  }
    61  
    62  // volumeNotFoundError implements an error returned when a volume is not in the docker host.
    63  type volumeNotFoundError struct {
    64  	volumeID string
    65  }
    66  
    67  // Error returns a string representation of an networkNotFoundError
    68  func (e volumeNotFoundError) Error() string {
    69  	return fmt.Sprintf("Error: No such volume: %s", e.volumeID)
    70  }
    71  
    72  // IsErrVolumeNotFound returns true if the error is caused
    73  // when a volume is not found in the docker host.
    74  func IsErrVolumeNotFound(err error) bool {
    75  	_, ok := err.(networkNotFoundError)
    76  	return ok
    77  }
    78  
    79  // unauthorizedError represents an authorization error in a remote registry.
    80  type unauthorizedError struct {
    81  	cause error
    82  }
    83  
    84  // Error returns a string representation of an unauthorizedError
    85  func (u unauthorizedError) Error() string {
    86  	return u.cause.Error()
    87  }
    88  
    89  // IsErrUnauthorized returns true if the error is caused
    90  // when an the remote registry authentication fails
    91  func IsErrUnauthorized(err error) bool {
    92  	_, ok := err.(unauthorizedError)
    93  	return ok
    94  }