ImageStreamLayers [image.openshift.io/v1] - Image <strong>api</strong>s | <strong>api</strong> reference

Specification
- .blobs
- .blobs{}
- .images
- .images{}
api endpoints
- /apis/image.openshift.io/v1/namespaces/{namespace}/imagestreams/{name}/layers

Description

ImageStreamLayers describes information about the layers referenced by images in this image stream.

Compatibility level 1: Stable within a major release for a minimum of 12 months or 3 minor releases (whichever is longer).

Type

object

Required

blobs
images

Specification

Property Type Description

Property	Type	Description
`apiVersion`	`string`	apiVersion defines the versioned schema of this representation of an object. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources
`blobs`	`object`	blobs is a map of blob name to metadata about the blob.
`blobs{}`	`object`	ImageLayerData contains metadata about an image layer.
`images`	`object`	images is a map between an image name and the names of the blobs and config that comprise the image.
`images{}`	`object`	ImageBlobReferences describes the blob references within an image.
`kind`	`string`	Kind is a string value representing the REST resource this object represents. Servers may infer this from the endpoint the client submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
`metadata`	`ObjectMeta_v2`	metadata is the standard object’s metadata. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata

apiVersion

string

apiVersion defines the versioned schema of this representation of an object. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources

blobs

object

blobs is a map of blob name to metadata about the blob.

blobs{}

object

ImageLayerData contains metadata about an image layer.

images

object

images is a map between an image name and the names of the blobs and config that comprise the image.

images{}

object

ImageBlobReferences describes the blob references within an image.

kind

string

Kind is a string value representing the REST resource this object represents. Servers may infer this from the endpoint the client submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds

metadata

ObjectMeta_v2

metadata is the standard object’s metadata. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata

.blobs

Description: blobs is a map of blob name to metadata about the blob.
Type: object

.blobs{}

Description

ImageLayerData contains metadata about an image layer.

Type

object

Required

size
mediaType

Property Type Description

Property	Type	Description
`mediaType`	`string`	MediaType of the referenced object.
`size`	`integer`	Size of the layer in bytes as defined by the underlying store. This field is optional if the necessary information about size is not available.

mediaType

string

MediaType of the referenced object.

size

integer

Size of the layer in bytes as defined by the underlying store. This field is optional if the necessary information about size is not available.

.images

Description: images is a map between an image name and the names of the blobs and config that comprise the image.
Type: object

.images{}

Description: ImageBlobReferences describes the blob references within an image.
Type: object

Property Type Description

Property	Type	Description
`config`	`string`	config, if set, is the blob that contains the image config. Some images do not have separate config blobs and this field will be set to nil if so.
`imageMissing`	`boolean`	imageMissing is true if the image is referenced by the image stream but the image object has been deleted from the api by an administrator. When this field is set, layers and config fields may be empty and callers that depend on the image metadata should consider the image to be unavailable for download or viewing.
`layers`	`array (string)`	layers is the list of blobs that compose this image, from base layer to top layer. All layers referenced by this array will be defined in the blobs map. Some images may have zero layers.
`manifests`	`array (string)`	manifests is the list of other image names that this image points to. For a single architecture image, it is empty. For a multi-arch image, it consists of the digests of single architecture images, such images shouldn’t have layers nor config.

config

string

config, if set, is the blob that contains the image config. Some images do not have separate config blobs and this field will be set to nil if so.

imageMissing

boolean

imageMissing is true if the image is referenced by the image stream but the image object has been deleted from the api by an administrator. When this field is set, layers and config fields may be empty and callers that depend on the image metadata should consider the image to be unavailable for download or viewing.

layers

array (string)

layers is the list of blobs that compose this image, from base layer to top layer. All layers referenced by this array will be defined in the blobs map. Some images may have zero layers.

manifests

array (string)

manifests is the list of other image names that this image points to. For a single architecture image, it is empty. For a multi-arch image, it consists of the digests of single architecture images, such images shouldn’t have layers nor config.

api endpoints

The following api endpoints are available:

/apis/image.openshift.io/v1/namespaces/{namespace}/imagestreams/{name}/layers
- GET: read layers of the specified ImageStream

/apis/image.openshift.io/v1/namespaces/{namespace}/imagestreams/{name}/layers

Table 1. Global path parameters
Parameter	Type	Description
`name`	`string`	name of the ImageStreamLayers

HTTP method: GET
Description: read layers of the specified ImageStream

Table 2. HTTP responses
HTTP code	Reponse body
200 - OK	`ImageStreamLayers` schema
401 - Unauthorized	Empty