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ImageStreamImage [image.openshift.io/v1] - Image <strong>api</strong>s | <strong>api</strong> reference | OpenShift Container Platform 4.17
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ImageStreamImage [image.openshift.io/v1]

Description

ImageStreamImage represents an Image that is retrieved by image name from an ImageStream. User interfaces and regular users can use this resource to access the metadata details of a tagged image in the image stream history for viewing, since Image resources are not directly accessible to end users. A not found error will be returned if no such image is referenced by a tag within the ImageStream. Images are created when spec tags are set on an image stream that represent an image in an external registry, when pushing to the integrated registry, or when tagging an existing image from one image stream to another. The name of an image stream image is in the form "<STREAM>@<DIGEST>", where the digest is the content addressible identifier for the image (sha256:xxxxx…​). You can use ImageStreamImages as the from.kind of an image stream spec tag to reference an image exactly. The only operations supported on the imagestreamimage endpoint are retrieving the image.

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

Type

object

Required

  • image

Specification

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

image

object

Image is an immutable representation of a container image and metadata at a point in time. Images are named by taking a hash of their contents (metadata and content) and any change in format, content, or metadata results in a new name. The images resource is primarily for use by cluster administrators and integrations like the cluster image registry - end users instead access images via the imagestreamtags or imagestreamimages resources. While image metadata is stored in the api, any integration that implements the container image registry api must provide its own storage for the raw manifest data, image config, and layer contents.

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

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

.image

Description

Image is an immutable representation of a container image and metadata at a point in time. Images are named by taking a hash of their contents (metadata and content) and any change in format, content, or metadata results in a new name. The images resource is primarily for use by cluster administrators and integrations like the cluster image registry - end users instead access images via the imagestreamtags or imagestreamimages resources. While image metadata is stored in the api, any integration that implements the container image registry api must provide its own storage for the raw manifest data, image config, and layer contents.

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

Type

object

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

dockerImageConfig

string

DockerImageConfig is a JSON blob that the runtime uses to set up the container. This is a part of manifest schema v2. Will not be set when the image represents a manifest list.

dockerImageLayers

array

DockerImageLayers represents the layers in the image. May not be set if the image does not define that data or if the image represents a manifest list.

dockerImageLayers[]

object

ImageLayer represents a single layer of the image. Some images may have multiple layers. Some may have none.

dockerImageManifest

string

DockerImageManifest is the raw JSON of the manifest

dockerImageManifestMediaType

string

DockerImageManifestMediaType specifies the mediaType of manifest. This is a part of manifest schema v2.

dockerImageManifests

array

DockerImageManifests holds information about sub-manifests when the image represents a manifest list. When this field is present, no DockerImageLayers should be specified.

dockerImageManifests[]

object

ImageManifest represents sub-manifests of a manifest list. The Digest field points to a regular Image object.

dockerImageMetadata

RawExtension

DockerImageMetadata contains metadata about this image

dockerImageMetadataVersion

string

DockerImageMetadataVersion conveys the version of the object, which if empty defaults to "1.0"

dockerImageReference

string

DockerImageReference is the string that can be used to pull this image.

dockerImageSignatures

array (string)

DockerImageSignatures provides the signatures as opaque blobs. This is a part of manifest schema v1.

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

signatures

array

Signatures holds all signatures of the image.

signatures[]

object

ImageSignature holds a signature of an image. It allows to verify image identity and possibly other claims as long as the signature is trusted. Based on this information it is possible to restrict runnable images to those matching cluster-wide policy. Mandatory fields should be parsed by clients doing image verification. The others are parsed from signature’s content by the server. They serve just an informative purpose.

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

.image.dockerImageLayers

Description

DockerImageLayers represents the layers in the image. May not be set if the image does not define that data or if the image represents a manifest list.

Type

array

.image.dockerImageLayers[]

Description

ImageLayer represents a single layer of the image. Some images may have multiple layers. Some may have none.

Type

object

Required

  • name

  • size

  • mediaType

Property Type Description

mediaType

string

MediaType of the referenced object.

name

string

Name of the layer as defined by the underlying store.

size

integer

Size of the layer in bytes as defined by the underlying store.

.image.dockerImageManifests

Description

DockerImageManifests holds information about sub-manifests when the image represents a manifest list. When this field is present, no DockerImageLayers should be specified.

Type

array

.image.dockerImageManifests[]

Description

ImageManifest represents sub-manifests of a manifest list. The Digest field points to a regular Image object.

Type

object

Required

  • digest

  • mediaType

  • manifestSize

  • architecture

  • os

Property Type Description

architecture

string

Architecture specifies the supported CPU architecture, for example amd64 or ppc64le.

digest

string

Digest is the unique identifier for the manifest. It refers to an Image object.

manifestSize

integer

ManifestSize represents the size of the raw object contents, in bytes.

mediaType

string

MediaType defines the type of the manifest, possible values are application/vnd.oci.image.manifest.v1+json, application/vnd.docker.distribution.manifest.v2+json or application/vnd.docker.distribution.manifest.v1+json.

os

string

OS specifies the operating system, for example linux.

variant

string

Variant is an optional field repreenting a variant of the CPU, for example v6 to specify a particular CPU variant of the ARM CPU.

.image.signatures

Description

Signatures holds all signatures of the image.

Type

array

.image.signatures[]

Description

ImageSignature holds a signature of an image. It allows to verify image identity and possibly other claims as long as the signature is trusted. Based on this information it is possible to restrict runnable images to those matching cluster-wide policy. Mandatory fields should be parsed by clients doing image verification. The others are parsed from signature’s content by the server. They serve just an informative purpose.

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

Type

object

Required

  • type

  • content

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

conditions

array

Conditions represent the latest available observations of a signature’s current state.

conditions[]

object

SignatureCondition describes an image signature condition of particular kind at particular probe time.

content

string

Required: An opaque binary string which is an image’s signature.

created

Time

If specified, it is the time of signature’s creation.

imageIdentity

string

A human readable string representing image’s identity. It could be a product name and version, or an image pull spec (e.g. "registry.access.redhat.com/rhel7/rhel:7.2").

issuedBy

object

SignatureIssuer holds information about an issuer of signing certificate or key.

issuedTo

object

SignatureSubject holds information about a person or entity who created the signature.

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

signedClaims

object (string)

Contains claims from the signature.

type

string

Required: Describes a type of stored blob.

.image.signatures[].conditions

Description

Conditions represent the latest available observations of a signature’s current state.

Type

array

.image.signatures[].conditions[]

Description

SignatureCondition describes an image signature condition of particular kind at particular probe time.

Type

object

Required

  • type

  • status

Property Type Description

lastProbeTime

Time

Last time the condition was checked.

lastTransitionTime

Time

Last time the condition transit from one status to another.

message

string

Human readable message indicating details about last transition.

reason

string

(brief) reason for the condition’s last transition.

status

string

Status of the condition, one of True, False, Unknown.

type

string

Type of signature condition, Complete or Failed.

.image.signatures[].issuedBy

Description

SignatureIssuer holds information about an issuer of signing certificate or key.

Type

object

Property Type Description

commonName

string

Common name (e.g. openshift-signing-service).

organization

string

Organization name.

.image.signatures[].issuedTo

Description

SignatureSubject holds information about a person or entity who created the signature.

Type

object

Required

  • publicKeyID

Property Type Description

commonName

string

Common name (e.g. openshift-signing-service).

organization

string

Organization name.

publicKeyID

string

If present, it is a human readable key id of public key belonging to the subject used to verify image signature. It should contain at least 64 lowest bits of public key’s fingerprint (e.g. 0x685ebe62bf278440).

api endpoints

The following api endpoints are available:

  • /apis/image.openshift.io/v1/namespaces/{namespace}/imagestreamimages/{name}

    • GET: read the specified ImageStreamImage

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

Table 1. Global path parameters
Parameter Type Description

name

string

name of the ImageStreamImage
HTTP method

GET

Description

read the specified ImageStreamImage

Table 2. HTTP responses
HTTP code Reponse body

200 - OK

ImageStreamImage schema

401 - Unauthorized

Empty