Description

ImageStreamTag represents an Image that is retrieved by tag name from an ImageStream.

Type

object

Required
  • tag

  • generation

  • lookupPolicy

  • 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/api-conventions.md#resources

.conditions

array

conditions is an array of conditions that apply to the image stream tag.

.conditions[]

object

TagEventCondition contains condition information for a tag event.

.generation

integer

generation is the current generation of the tagged image - if tag is provided and this value is not equal to the tag generation, a user has requested an import that has not completed, or conditions will be filled out indicating any error.

.image

object

Image is an immutable representation of a Docker image and metadata at a point in time.

.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/api-conventions.md#types-kinds

.lookupPolicy

object

ImageLookupPolicy describes how an image stream can be used to override the image references used by pods, builds, and other resources in a namespace.

.metadata

ObjectMeta meta/v1

Standard object’s metadata.

.tag

object

TagReference specifies optional annotations for images using this tag and an optional reference to an ImageStreamTag, ImageStreamImage, or DockerImage this tag should track.

.conditions
Description

conditions is an array of conditions that apply to the image stream tag.

Type

array

.conditions[]
Description

TagEventCondition contains condition information for a tag event.

Type

object

Required
  • type

  • status

  • generation

Property Type Description

generation

integer

Generation is the spec tag generation that this status corresponds to

lastTransitionTime

Time meta/v1

LastTransitionTIme is the time the condition transitioned from one status to another.

message

string

Message is a human readable description of the details about last transition, complementing reason.

reason

string

Reason is a brief machine readable explanation for the condition’s last transition.

status

string

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

type

string

Type of tag event condition, currently only ImportSuccess

.image
Description

Image is an immutable representation of a Docker image and metadata at a point in time.

Type

object

Required
  • dockerImageLayers

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/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.

dockerImageLayers

array

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

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.

dockerImageMetadata

RawExtension pkg/runtime

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/api-conventions.md#types-kinds

metadata

ObjectMeta meta/v1

Standard object’s 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.

.image.dockerImageLayers
Description

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

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.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.

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/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 meta/v1

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/api-conventions.md#types-kinds

metadata

ObjectMeta meta/v1

Standard object’s 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 meta/v1

Last time the condition was checked.

lastTransitionTime

Time meta/v1

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).

.lookupPolicy
Description

ImageLookupPolicy describes how an image stream can be used to override the image references used by pods, builds, and other resources in a namespace.

Type

object

Required
  • local

Property Type Description

local

boolean

local will change the docker short image references (like "mysql" or "php:latest") on objects in this namespace to the image ID whenever they match this image stream, instead of reaching out to a remote registry. The name will be fully qualified to an image ID if found. The tag’s referencePolicy is taken into account on the replaced value. Only works within the current namespace.

.tag
Description

TagReference specifies optional annotations for images using this tag and an optional reference to an ImageStreamTag, ImageStreamImage, or DockerImage this tag should track.

Type

object

Required
  • name

Property Type Description

annotations

object (string)

Optional; if specified, annotations that are applied to images retrieved via ImageStreamTags.

from

ObjectReference core/v1

Optional; if specified, a reference to another image that this tag should point to. Valid values are ImageStreamTag, ImageStreamImage, and DockerImage. ImageStreamTag references can only reference a tag within this same ImageStream.

generation

integer

Generation is a counter that tracks mutations to the spec tag (user intent). When a tag reference is changed the generation is set to match the current stream generation (which is incremented every time spec is changed). Other processes in the system like the image importer observe that the generation of spec tag is newer than the generation recorded in the status and use that as a trigger to import the newest remote tag. To trigger a new import, clients may set this value to zero which will reset the generation to the latest stream generation. Legacy clients will send this value as nil which will be merged with the current tag generation.

importPolicy

object

TagImportPolicy controls how images related to this tag will be imported.

name

string

Name of the tag

reference

boolean

Reference states if the tag will be imported. Default value is false, which means the tag will be imported.

referencePolicy

object

TagReferencePolicy describes how pull-specs for images in this image stream tag are generated when image change triggers in deployment configs or builds are resolved. This allows the image stream author to control how images are accessed.

.tag.importPolicy
Description

TagImportPolicy controls how images related to this tag will be imported.

Type

object

Property Type Description

insecure

boolean

Insecure is true if the server may bypass certificate verification or connect directly over HTTP during image import.

scheduled

boolean

Scheduled indicates to the server that this tag should be periodically checked to ensure it is up to date, and imported

.tag.referencePolicy
Description

TagReferencePolicy describes how pull-specs for images in this image stream tag are generated when image change triggers in deployment configs or builds are resolved. This allows the image stream author to control how images are accessed.

Type

object

Required
  • type

Property Type Description

type

string

Type determines how the image pull spec should be transformed when the image stream tag is used in deployment config triggers or new builds. The default value is Source, indicating the original location of the image should be used (if imported). The user may also specify Local, indicating that the pull spec should point to the integrated Docker registry and leverage the registry’s ability to proxy the pull to an upstream registry. Local allows the credentials used to pull this image to be managed from the image stream’s namespace, so others on the platform can access a remote image but have no access to the remote secret. It also allows the image layers to be mirrored into the local registry which the images can still be pulled even if the upstream registry is unavailable.

API endpoints

The following API endpoints are available:

  • /apis/image.openshift.io/v1/imagestreamtags

    • GET: list objects of kind ImageStreamTag

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

    • GET: list objects of kind ImageStreamTag

    • POST: create an ImageStreamTag

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

    • DELETE: delete an ImageStreamTag

    • GET: read the specified ImageStreamTag

    • PATCH: partially update the specified ImageStreamTag

    • PUT: replace the specified ImageStreamTag

/apis/image.openshift.io/v1/imagestreamtags

Table 1. Global guery parameters
Parameter Type Description

continue

string

The continue option should be set when retrieving more results from the server. Since this value is server defined, clients may only use the continue value from a previous query result with identical query parameters (except for the value of continue) and the server may reject a continue value it does not recognize. If the specified continue value is no longer valid whether due to expiration (generally five to fifteen minutes) or a configuration change on the server the server will respond with a 410 ResourceExpired error indicating the client must restart their list without the continue field. This field is not supported when watch is true. Clients may start a watch from the last resourceVersion value returned by the server and not miss any modifications.

fieldSelector

string

A selector to restrict the list of returned objects by their fields. Defaults to everything.

includeUninitialized

boolean

If true, partially initialized resources are included in the response.

labelSelector

string

A selector to restrict the list of returned objects by their labels. Defaults to everything.

limit

integer

limit is a maximum number of responses to return for a list call. If more items exist, the server will set the `continue` field on the list metadata to a value that can be used with the same initial query to retrieve the next set of results. Setting a limit may return fewer than the requested amount of items (up to zero items) in the event all requested objects are filtered out and clients should only use the presence of the continue field to determine whether more results are available. Servers may choose not to support the limit argument and will return all of the available results. If limit is specified and the continue field is empty, clients may assume that no more results are available. This field is not supported if watch is true.

The server guarantees that the objects returned when using continue will be identical to issuing a single list call without a limit - that is, no objects created, modified, or deleted after the first request is issued will be included in any subsequent continued requests. This is sometimes referred to as a consistent snapshot, and ensures that a client that is using limit to receive smaller chunks of a very large result can ensure they see all possible objects. If objects are updated during a chunked list the version of the object that was present at the time the first list result was calculated is returned.

pretty

string

If 'true', then the output is pretty printed.

resourceVersion

string

When specified with a watch call, shows changes that occur after that particular version of a resource. Defaults to changes from the beginning of history. When specified for list: - if unset, then the result is returned from remote storage based on quorum-read flag; - if it's 0, then we simply return what we currently have in cache, no guarantee; - if set to non zero, then the result is at least as fresh as given rv.

timeoutSeconds

integer

Timeout for the list/watch call. This limits the duration of the call, regardless of any activity or inactivity.

watch

boolean

Watch for changes to the described resources and return them as a stream of add, update, and remove notifications. Specify resourceVersion.

HTTP method

GET

Description

list objects of kind ImageStreamTag

Table 2. HTTP responses
HTTP code Reponse body

200 - OK

ImageStreamTagList image.openshift.io/v1

401 - Unauthorized

Empty

/apis/image.openshift.io/v1/namespaces/{namespace}/imagestreamtags

Table 3. Global path parameters
Parameter Type Description

namespace

string

object name and auth scope, such as for teams and projects

Table 4. Global guery parameters
Parameter Type Description

pretty

string

If 'true', then the output is pretty printed.

HTTP method

GET

Description

list objects of kind ImageStreamTag

Table 5. Query parameters
Parameter Type Description

continue

string

The continue option should be set when retrieving more results from the server. Since this value is server defined, clients may only use the continue value from a previous query result with identical query parameters (except for the value of continue) and the server may reject a continue value it does not recognize. If the specified continue value is no longer valid whether due to expiration (generally five to fifteen minutes) or a configuration change on the server the server will respond with a 410 ResourceExpired error indicating the client must restart their list without the continue field. This field is not supported when watch is true. Clients may start a watch from the last resourceVersion value returned by the server and not miss any modifications.

fieldSelector

string

A selector to restrict the list of returned objects by their fields. Defaults to everything.

includeUninitialized

boolean

If true, partially initialized resources are included in the response.

labelSelector

string

A selector to restrict the list of returned objects by their labels. Defaults to everything.

limit

integer

limit is a maximum number of responses to return for a list call. If more items exist, the server will set the `continue` field on the list metadata to a value that can be used with the same initial query to retrieve the next set of results. Setting a limit may return fewer than the requested amount of items (up to zero items) in the event all requested objects are filtered out and clients should only use the presence of the continue field to determine whether more results are available. Servers may choose not to support the limit argument and will return all of the available results. If limit is specified and the continue field is empty, clients may assume that no more results are available. This field is not supported if watch is true.

The server guarantees that the objects returned when using continue will be identical to issuing a single list call without a limit - that is, no objects created, modified, or deleted after the first request is issued will be included in any subsequent continued requests. This is sometimes referred to as a consistent snapshot, and ensures that a client that is using limit to receive smaller chunks of a very large result can ensure they see all possible objects. If objects are updated during a chunked list the version of the object that was present at the time the first list result was calculated is returned.

resourceVersion

string

When specified with a watch call, shows changes that occur after that particular version of a resource. Defaults to changes from the beginning of history. When specified for list: - if unset, then the result is returned from remote storage based on quorum-read flag; - if it's 0, then we simply return what we currently have in cache, no guarantee; - if set to non zero, then the result is at least as fresh as given rv.

timeoutSeconds

integer

Timeout for the list/watch call. This limits the duration of the call, regardless of any activity or inactivity.

watch

boolean

Watch for changes to the described resources and return them as a stream of add, update, and remove notifications. Specify resourceVersion.

Table 6. HTTP responses
HTTP code Reponse body

200 - OK

ImageStreamTagList image.openshift.io/v1

401 - Unauthorized

Empty

HTTP method

POST

Description

create an ImageStreamTag

Table 7. Body parameters
Parameter Type Description

body

ImageStreamTag image.openshift.io/v1

Table 8. HTTP responses
HTTP code Reponse body

200 - OK

ImageStreamTag image.openshift.io/v1

201 - Created

ImageStreamTag image.openshift.io/v1

202 - Accepted

ImageStreamTag image.openshift.io/v1

401 - Unauthorized

Empty

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

Table 9. Global path parameters
Parameter Type Description

name

string

name of the ImageStreamTag

namespace

string

object name and auth scope, such as for teams and projects

Table 10. Global guery parameters
Parameter Type Description

pretty

string

If 'true', then the output is pretty printed.

HTTP method

DELETE

Description

delete an ImageStreamTag

Table 11. Query parameters
Parameter Type Description

gracePeriodSeconds

integer

The duration in seconds before the object should be deleted. Value must be non-negative integer. The value zero indicates delete immediately. If this value is nil, the default grace period for the specified type will be used. Defaults to a per object value if not specified. zero means delete immediately.

orphanDependents

boolean

Deprecated: please use the PropagationPolicy, this field will be deprecated in 1.7. Should the dependent objects be orphaned. If true/false, the "orphan" finalizer will be added to/removed from the object's finalizers list. Either this field or PropagationPolicy may be set, but not both.

propagationPolicy

string

Whether and how garbage collection will be performed. Either this field or OrphanDependents may be set, but not both. The default policy is decided by the existing finalizer set in the metadata.finalizers and the resource-specific default policy. Acceptable values are: 'Orphan' - orphan the dependents; 'Background' - allow the garbage collector to delete the dependents in the background; 'Foreground' - a cascading policy that deletes all dependents in the foreground.

Table 12. Body parameters
Parameter Type Description

body

DeleteOptions meta/v1

Table 13. HTTP responses
HTTP code Reponse body

200 - OK

Status meta/v1

401 - Unauthorized

Empty

HTTP method

GET

Description

read the specified ImageStreamTag

Table 14. HTTP responses
HTTP code Reponse body

200 - OK

ImageStreamTag image.openshift.io/v1

401 - Unauthorized

Empty

HTTP method

PATCH

Description

partially update the specified ImageStreamTag

Table 15. Body parameters
Parameter Type Description

body

Patch meta/v1

Table 16. HTTP responses
HTTP code Reponse body

200 - OK

ImageStreamTag image.openshift.io/v1

401 - Unauthorized

Empty

HTTP method

PUT

Description

replace the specified ImageStreamTag

Table 17. Body parameters
Parameter Type Description

body

ImageStreamTag image.openshift.io/v1

Table 18. HTTP responses
HTTP code Reponse body

200 - OK

ImageStreamTag image.openshift.io/v1

201 - Created

ImageStreamTag image.openshift.io/v1

401 - Unauthorized

Empty