images

Documentation

Index

• func AssertDeletedStorageFiles(deleted, expected *RegistryStorageFiles) error
• func BuildAndPushChildImage(oc *exutil.CLI, dClient *dockerclient.Client, parent string, name, tag string, ...) (string, string, error)
• func BuildAndPushImageOfSizeWithBuilder(oc *exutil.CLI, dClient *dockerclient.Client, namespace, name, tag string, ...) error
• func BuildAndPushImageOfSizeWithDocker(oc *exutil.CLI, dClient *dockerclient.Client, name, tag string, size uint64, ...) (string, string, error)
• func GetImageLabels(c client.ImageStreamImageInterface, imageRepoName, imageRef string) (map[string]string, error)
• func IsBlobStoredInRegistry(oc *exutil.CLI, dgst digest.Digest, repository string) (bool, bool, error)
• func IsEmptyDigest(dgst digest.Digest) bool
• func MirrorBlobInRegistry(oc *exutil.CLI, dgst digest.Digest, repository string, timeout time.Duration) error
• type CleanUpContainer
  • func NewCleanUpContainer(oc *exutil.CLI) *CleanUpContainer
  • func (c *CleanUpContainer) AddImage(name, id, isTag string)
  • func (c *CleanUpContainer) AddImageStream(isName string)
  • func (c *CleanUpContainer) Run()
• type RegistryStorageFiles
  • func RunHardPrune(oc *exutil.CLI, dryRun bool) (*RegistryStorageFiles, error)
  • func (sfs *RegistryStorageFiles) Len() int
  • func (sfs *RegistryStorageFiles) ToPaths(root string) []string
• type RepoLinks
  • func (rl RepoLinks) Add(repo string, links ...string)

Functions

func AssertDeletedStorageFiles

func AssertDeletedStorageFiles(deleted, expected *RegistryStorageFiles) error

AssertDeletedStorageFiles compares lists of deleted files against expected. An error will be generated for each entry present in just one of these sets.

func BuildAndPushChildImage

func BuildAndPushChildImage(
	oc *exutil.CLI,
	dClient *dockerclient.Client,
	parent string,
	name, tag string,
	numberOfNewLayers int,
	outSink io.Writer,
	removeBuiltImage bool,
) (string, string, error)

BuildAndPushChildImage tries to build and push an image of given name and number of layers. It instructs Docker daemon directly. Built image is stored as an image stream tag <name>:<tag>. Returned is an image digest, its ID (docker daemon's internal representation) and an error if any.

func BuildAndPushImageOfSizeWithBuilder

func BuildAndPushImageOfSizeWithBuilder(
	oc *exutil.CLI,
	dClient *dockerclient.Client,
	namespace, name, tag string,
	size uint64,
	numberOfLayers int,
	shouldSucceed bool,
) error

BuildAndPushImageOfSizeWithBuilder tries to build an image of wanted size and number of layers. Built image is stored as an image stream tag <name>:<tag>. If shouldSucceed is false, a build is expected to fail with a denied error. Note the size is only approximate. Resulting image size will be different depending on used compression algorithm and metadata overhead.

func BuildAndPushImageOfSizeWithDocker

func BuildAndPushImageOfSizeWithDocker(
	oc *exutil.CLI,
	dClient *dockerclient.Client,
	name, tag string,
	size uint64,
	numberOfLayers int,
	outSink io.Writer,
	shouldSucceed bool,
	removeBuiltImage bool,
) (string, string, error)

BuildAndPushImageOfSizeWithDocker tries to build an image of wanted size and number of layers. It instructs Docker daemon directly. Built image is stored as an image stream tag <name>:<tag>. If shouldSucceed is false, a push is expected to fail with a denied error. Note the size is only approximate. Resulting image size will be different depending on used compression algorithm and metadata overhead. Returned is an image digest, its ID (docker daemon's internal representation) and an error if any.

func GetImageLabels

func GetImageLabels(c client.ImageStreamImageInterface, imageRepoName, imageRef string) (map[string]string, error)

GetImageLabels retrieves Docker labels from image from image repository name and image reference

func IsBlobStoredInRegistry

func IsBlobStoredInRegistry(
	oc *exutil.CLI,
	dgst digest.Digest,
	repository string,
) (bool, bool, error)

IsBlobStoredInRegistry verifies a presence of the given blob on registry's storage. The registry must be deployed with a filesystem storage driver. If repository is given, the presence will be verified also for layer link inside the ${repository}/_layers directory. First returned bool says whether the blob is present globally in the registry's storage. The second says whether the blob is linked in the given repository.

func IsEmptyDigest

func IsEmptyDigest(dgst digest.Digest) bool

IsEmptyDigest returns true if the given digest matches one of empty blobs.

func MirrorBlobInRegistry

func MirrorBlobInRegistry(oc *exutil.CLI, dgst digest.Digest, repository string, timeout time.Duration) error

MirrorBlobInRegistry forces a blob of external image to be mirrored in the registry. The function expects the blob not to exist before a GET request is issued. The function blocks until the blob is mirrored or the given timeout passes.

Types

type CleanUpContainer

type CleanUpContainer struct {
	OC *exutil.CLI
	// contains filtered or unexported fields
}

CleanUpContainer holds names of image names, docker image IDs, imagestreamtags and imagestreams that shall be deleted at the end of the test.

func NewCleanUpContainer

func NewCleanUpContainer(oc *exutil.CLI) *CleanUpContainer

NewCleanUpContainer creates a new instance of CleanUpContainer.

func (*CleanUpContainer) AddImage

func (c *CleanUpContainer) AddImage(name, id, isTag string)

AddImage marks given image name, docker image id and imagestreamtag as candidates for deletion.

func (*CleanUpContainer) AddImageStream

func (c *CleanUpContainer) AddImageStream(isName string)

AddImageStream marks the given image stream name for removal.

func (*CleanUpContainer) Run

func (c *CleanUpContainer) Run()

Run deletes all the marked objects.

type RegistryStorageFiles

type RegistryStorageFiles struct {
	Repos         []string
	ManifestLinks RepoLinks
	LayerLinks    RepoLinks
	Blobs         []string
}

func RunHardPrune

func RunHardPrune(oc *exutil.CLI, dryRun bool) (*RegistryStorageFiles, error)

RunHardPrune executes into a docker-registry pod and runs a garbage collector. The docker-registry is assumed to be in a read-only mode and using filesystem as a storage driver. It returns lists of deleted files.

func (*RegistryStorageFiles) Len

func (sfs *RegistryStorageFiles) Len() int

Len returns a number of files contained in the sfs container.

func (*RegistryStorageFiles) ToPaths

func (sfs *RegistryStorageFiles) ToPaths(root string) []string

ToPaths returns a list of paths of files contained in _sfs_ corresponding to their location in registry pod's storage under _root_ directory.

type RepoLinks

type RepoLinks map[string][]string

RepoLinks maps digests of layer links to a repository

func (RepoLinks) Add

func (rl RepoLinks) Add(repo string, links ...string)