builder

package
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Published: Jan 18, 2018 License: Apache-2.0 Imports: 8 Imported by: 0

Documentation

Overview

Package builder defines interfaces for any Docker builder to implement.

Historically, only server-side Dockerfile interpreters existed. This package allows for other implementations of Docker builders.

Index

Constants

View Source
const (
	// DefaultDockerfileName is the Default filename with Docker commands, read by docker build
	DefaultDockerfileName string = "Dockerfile"
)

Variables

This section is empty.

Functions

This section is empty.

Types

type Backend

type Backend interface {
	ImageBackend
	ExecBackend

	// Commit creates a new Docker image from an existing Docker container.
	Commit(string, *backend.ContainerCommitConfig) (string, error)
	// ContainerCreateWorkdir creates the workdir
	ContainerCreateWorkdir(containerID string) error

	CreateImage(config []byte, parent string, platform string) (Image, error)

	ImageCacheBuilder
}

Backend abstracts calls to a Docker Daemon.

type ExecBackend

type ExecBackend interface {
	// ContainerAttachRaw attaches to container.
	ContainerAttachRaw(cID string, stdin io.ReadCloser, stdout, stderr io.Writer, stream bool, attached chan struct{}) error
	// ContainerCreate creates a new Docker container and returns potential warnings
	ContainerCreate(config types.ContainerCreateConfig) (container.ContainerCreateCreatedBody, error)
	// ContainerRm removes a container specified by `id`.
	ContainerRm(name string, config *types.ContainerRmConfig) error
	// ContainerKill stops the container execution abruptly.
	ContainerKill(containerID string, sig uint64) error
	// ContainerStart starts a new container
	ContainerStart(containerID string, hostConfig *container.HostConfig, checkpoint string, checkpointDir string) error
	// ContainerWait stops processing until the given container is stopped.
	ContainerWait(ctx context.Context, name string, condition containerpkg.WaitCondition) (<-chan containerpkg.StateStatus, error)
}

ExecBackend contains the interface methods required for executing containers

type Image

type Image interface {
	ImageID() string
	RunConfig() *container.Config
	MarshalJSON() ([]byte, error)
	OperatingSystem() string
}

Image represents a Docker image used by the builder.

type ImageBackend

type ImageBackend interface {
	GetImageAndReleasableLayer(ctx context.Context, refOrID string, opts backend.GetImageAndLayerOptions) (Image, ReleaseableLayer, error)
}

ImageBackend are the interface methods required from an image component

type ImageCache

type ImageCache interface {
	// GetCache returns a reference to a cached image whose parent equals `parent`
	// and runconfig equals `cfg`. A cache miss is expected to return an empty ID and a nil error.
	GetCache(parentID string, cfg *container.Config) (imageID string, err error)
}

ImageCache abstracts an image cache. (parent image, child runconfig) -> child image

type ImageCacheBuilder

type ImageCacheBuilder interface {
	// MakeImageCache creates a stateful image cache.
	MakeImageCache(cacheFrom []string, platform string) ImageCache
}

ImageCacheBuilder represents a generator for stateful image cache.

type ReleaseableLayer

type ReleaseableLayer interface {
	Release() error
	Mount() (containerfs.ContainerFS, error)
	Commit(platform string) (ReleaseableLayer, error)
	DiffID() layer.DiffID
}

ReleaseableLayer is an image layer that can be mounted and released

type Result

type Result struct {
	ImageID   string
	FromImage Image
}

Result is the output produced by a Builder

type Source

type Source interface {
	// Root returns root path for accessing source
	Root() containerfs.ContainerFS
	// Close allows to signal that the filesystem tree won't be used anymore.
	// For Context implementations using a temporary directory, it is recommended to
	// delete the temporary directory in Close().
	Close() error
	// Hash returns a checksum for a file
	Hash(path string) (string, error)
}

Source defines a location that can be used as a source for the ADD/COPY instructions in the builder.

Directories

Path Synopsis
Package dockerfile is the evaluation step in the Dockerfile parse/evaluate pipeline.
Package dockerfile is the evaluation step in the Dockerfile parse/evaluate pipeline.
command
Package command contains the set of Dockerfile commands.
Package command contains the set of Dockerfile commands.
parser
Package parser implements a parser and parse tree dumper for Dockerfiles.
Package parser implements a parser and parse tree dumper for Dockerfiles.
Package remotecontext is a generated protocol buffer package.
Package remotecontext is a generated protocol buffer package.
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