107 lines
3.9 KiB
Go
107 lines
3.9 KiB
Go
// 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.
|
|
package builder
|
|
|
|
import (
|
|
"io"
|
|
|
|
"github.com/docker/docker/api/types"
|
|
"github.com/docker/docker/api/types/backend"
|
|
"github.com/docker/docker/api/types/container"
|
|
containerpkg "github.com/docker/docker/container"
|
|
"github.com/docker/docker/layer"
|
|
"github.com/docker/docker/pkg/containerfs"
|
|
"golang.org/x/net/context"
|
|
)
|
|
|
|
const (
|
|
// DefaultDockerfileName is the Default filename with Docker commands, read by docker build
|
|
DefaultDockerfileName string = "Dockerfile"
|
|
)
|
|
|
|
// Source defines a location that can be used as a source for the ADD/COPY
|
|
// instructions in the builder.
|
|
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)
|
|
}
|
|
|
|
// Backend abstracts calls to a Docker Daemon.
|
|
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) (Image, error)
|
|
|
|
ImageCacheBuilder
|
|
}
|
|
|
|
// ImageBackend are the interface methods required from an image component
|
|
type ImageBackend interface {
|
|
GetImageAndReleasableLayer(ctx context.Context, refOrID string, opts backend.GetImageAndLayerOptions) (Image, ReleaseableLayer, error)
|
|
}
|
|
|
|
// ExecBackend contains the interface methods required for executing containers
|
|
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)
|
|
}
|
|
|
|
// Result is the output produced by a Builder
|
|
type Result struct {
|
|
ImageID string
|
|
FromImage Image
|
|
}
|
|
|
|
// ImageCacheBuilder represents a generator for stateful image cache.
|
|
type ImageCacheBuilder interface {
|
|
// MakeImageCache creates a stateful image cache.
|
|
MakeImageCache(cacheFrom []string) ImageCache
|
|
}
|
|
|
|
// ImageCache abstracts an image cache.
|
|
// (parent image, child runconfig) -> child image
|
|
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)
|
|
}
|
|
|
|
// Image represents a Docker image used by the builder.
|
|
type Image interface {
|
|
ImageID() string
|
|
RunConfig() *container.Config
|
|
MarshalJSON() ([]byte, error)
|
|
OperatingSystem() string
|
|
}
|
|
|
|
// ReleaseableLayer is an image layer that can be mounted and released
|
|
type ReleaseableLayer interface {
|
|
Release() error
|
|
Mount() (containerfs.ContainerFS, error)
|
|
Commit() (ReleaseableLayer, error)
|
|
DiffID() layer.DiffID
|
|
}
|