docker

Documentation

Index

• Constants
• Variables
• type FormattingWriter
  • func NewFormattingWriter(writer io.Writer, aColorizer StringFormatter) *FormattingWriter
  • func (w *FormattingWriter) Close() error
  • func (w *FormattingWriter) Write(data []byte) (int, error)
• type ImageManager
  • func NewImageManager() (*ImageManager, error)
  • func (d *ImageManager) BuildImage(dockerfileDirPath, name string, stdoutWriter io.WriteCloser) error
  • func (d *ImageManager) BuildImageFromCallback(name string, stdoutWriter io.Writer, callback func(*tar.Writer) error) error
  • func (d *ImageManager) CreateImage(containerID string, repository string, tag string, message string, ...) (*dockerclient.Image, error)
  • func (d *ImageManager) FindBestImageWithLabels(baseImageName string, labels []string, mandatory []string) (string, map[string]string, error)
  • func (d *ImageManager) FindImage(imageName string) (*dockerclient.Image, error)
  • func (d *ImageManager) HasImage(imageName string) (bool, error)
  • func (d *ImageManager) HasLabels(image *dockerclient.APIImages, labels map[string]struct{}) bool
  • func (d *ImageManager) RemoveContainer(containerID string) error
  • func (d *ImageManager) RemoveImage(imageName string) error
  • func (d *ImageManager) RemoveVolumes(container *dockerclient.Container) error
  • func (d *ImageManager) RunInContainer(opts RunInContainerOpts) (exitCode int, container *dockerclient.Container, err error)
• type RunInContainerOpts
• type StringFormatter
  • func ColoredBuildStringFunc(buildName string) StringFormatter

Constants

const (
	// ContainerInPath is the input path for fissile
	ContainerInPath = "/fissile-in"
	// ContainerOutPath is the output path for fissile
	ContainerOutPath = "/fissile-out"
)

Variables

var (
	// ErrImageNotFound is the error returned when an image is not found.
	ErrImageNotFound = fmt.Errorf("Image not found")
)

Types

type FormattingWriter

type FormattingWriter struct {
	io.Writer
	io.Closer
	// contains filtered or unexported fields
}

FormattingWriter wraps an io.WriteCloser so lines can be individually formatted.

func NewFormattingWriter

func NewFormattingWriter(writer io.Writer, aColorizer StringFormatter) *FormattingWriter

NewFormattingWriter - Get a FormattingWriter here. aColorizer can be nil

func (*FormattingWriter) Close

func (w *FormattingWriter) Close() error

Close ensures the remaining data is written to the io.Writer

func (*FormattingWriter) Write

func (w *FormattingWriter) Write(data []byte) (int, error)

type ImageManager

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

ImageManager handles Docker images

func NewImageManager

func NewImageManager() (*ImageManager, error)

NewImageManager creates an instance of ImageManager

func (*ImageManager) BuildImage

func (d *ImageManager) BuildImage(dockerfileDirPath, name string, stdoutWriter io.WriteCloser) error

BuildImage builds a docker image using a directory that contains a Dockerfile

func (*ImageManager) BuildImageFromCallback

func (d *ImageManager) BuildImageFromCallback(name string, stdoutWriter io.Writer, callback func(*tar.Writer) error) error

BuildImageFromCallback builds a docker image by letting a callback populate a tar.Writer; the callback must write a Dockerfile into the tar stream (as well as any additional build context). If stdoutWriter implements io.Closer, it will be closed when done.

func (*ImageManager) CreateImage

func (d *ImageManager) CreateImage(containerID string, repository string, tag string, message string, cmd []string) (*dockerclient.Image, error)

CreateImage will create a Docker image

func (*ImageManager) FindBestImageWithLabels

func (d *ImageManager) FindBestImageWithLabels(baseImageName string, labels []string, mandatory []string) (string, map[string]string, error)

FindBestImageWithLabels finds the best image that has a given base image, and has as many of the given labels as possible. Returns the best matching image name, and all of the matched labels (and their values). Manadatory labels are labels an image must have to be considered as candidate.

func (*ImageManager) FindImage

func (d *ImageManager) FindImage(imageName string) (*dockerclient.Image, error)

FindImage will lookup an image in Docker

func (*ImageManager) HasImage

func (d *ImageManager) HasImage(imageName string) (bool, error)

HasImage determines if the given image already exists in Docker

func (*ImageManager) HasLabels

func (d *ImageManager) HasLabels(image *dockerclient.APIImages, labels map[string]struct{}) bool

HasLabels determines if all of the provided labels (keys of the map) are in the set of the image's labels. It returns true if so, and false otherwise.

func (*ImageManager) RemoveContainer

func (d *ImageManager) RemoveContainer(containerID string) error

RemoveContainer will remove a container from Docker

func (*ImageManager) RemoveImage

func (d *ImageManager) RemoveImage(imageName string) error

RemoveImage will remove an image from Docker's internal registry

func (*ImageManager) RemoveVolumes

func (d *ImageManager) RemoveVolumes(container *dockerclient.Container) error

RemoveVolumes removes any temporary volumes assoicated with a container

func (*ImageManager) RunInContainer

func (d *ImageManager) RunInContainer(opts RunInContainerOpts) (exitCode int, container *dockerclient.Container, err error)

RunInContainer will execute a set of commands within a running Docker container

type RunInContainerOpts

type RunInContainerOpts struct {
	ContainerName string
	ImageName     string
	Cmd           []string
	// Mount points, src -> dest
	// dest may be special values ContainerInPath, ContainerOutPath
	Mounts map[string]string
	// Create local volumes.  Volumes are destroyed unless KeepContainer is true
	Volumes       map[string]map[string]string
	KeepContainer bool
	StdoutWriter  io.Writer
	StderrWriter  io.Writer
}

RunInContainerOpts encapsulates the options to RunInContainer()

type StringFormatter

type StringFormatter func(line string) string

StringFormatter is a formatting string function

func ColoredBuildStringFunc

func ColoredBuildStringFunc(buildName string) StringFormatter

ColoredBuildStringFunc returns a formatting function for colorizing strings.