internal

package
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Published: Mar 8, 2016 License: Apache-2.0 Imports: 24 Imported by: 0

Documentation

Overview

Package internal provides functions shared by different parts of docker2aci.

Note: this package is an implementation detail and shouldn't be used outside of docker2aci.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func GenerateACI

func GenerateACI(layerNumber int, layerData types.DockerImageData, dockerURL *types.ParsedDockerURL, outputDir string, layerFile *os.File, curPwl []string, compression common.Compression) (string, *schema.ImageManifest, error)

GenerateACI takes a Docker layer and generates an ACI from it.

func GenerateManifest

func GenerateManifest(layerData types.DockerImageData, dockerURL *types.ParsedDockerURL) (*schema.ImageManifest, error)

GenerateManifest converts the docker manifest format to an appc ImageManifest.

func GetAuthInfo

func GetAuthInfo(indexServer string) (string, string, error)

GetDockercfgAuth reads a ~/.dockercfg file and returns the username and password of the given docker index server.

func ParseDockerURL

func ParseDockerURL(arg string) (*types.ParsedDockerURL, error)

ParseDockerURL takes a Docker URL and returns a ParsedDockerURL with its index URL, image name, and tag.

func SplitReposName

func SplitReposName(reposName string) (string, string)

SplitReposName breaks a reposName into an index name and remote name.

func ValidateACI

func ValidateACI(aciPath string) error

ValidateACI checks whether the ACI in aciPath is valid.

func WriteManifest

func WriteManifest(outputWriter *tar.Writer, manifest schema.ImageManifest) error

WriteManifest writes a schema.ImageManifest entry on a tar.Writer.

func WriteRootfsDir

func WriteRootfsDir(tarWriter *tar.Writer) error

WriteRootfsDir writes a "rootfs" dir entry on a tar.Writer.

Types

type Docker2ACIBackend

type Docker2ACIBackend interface {
	GetImageInfo(dockerUrl string) ([]string, *types.ParsedDockerURL, error)
	BuildACI(layerNumber int, layerID string, dockerURL *types.ParsedDockerURL, outputDir string, tmpBaseDir string, curPWl []string, compression common.Compression) (string, *schema.ImageManifest, error)
}

Docker2ACIBackend is the interface that abstracts converting Docker layers to ACI from where they're stored (remote or file).

GetImageInfo takes a Docker URL and returns a list of layers and the parsed Docker URL.

BuildACI takes a Docker layer, converts it to ACI and returns its output path and its converted ImageManifest.

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