Chapter 8. ImageStream [image.openshift.io/v1]
- Description
An ImageStream stores a mapping of tags to images, metadata overrides that are applied when images are tagged in a stream, and an optional reference to a container image repository on a registry. Users typically update the spec.tags field to point to external images which are imported from container registries using credentials in your namespace with the pull secret type, or to existing image stream tags and images which are immediately accessible for tagging or pulling. The history of images applied to a tag is visible in the status.tags field and any user who can view an image stream is allowed to tag that image into their own image streams. Access to pull images from the integrated registry is granted by having the "get imagestreams/layers" permission on a given image stream. Users may remove a tag by deleting the imagestreamtag resource, which causes both spec and status for that tag to be removed. Image stream history is retained until an administrator runs the prune operation, which removes references that are no longer in use. To preserve a historical image, ensure there is a tag in spec pointing to that image by its digest.
Compatibility level 1: Stable within a major release for a minimum of 12 months or 3 minor releases (whichever is longer).
- Type
-
object
8.1. Specification
Property | Type | Description |
---|---|---|
|
| 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 |
|
| 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 is the standard object’s metadata. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata | |
|
| ImageStreamSpec represents options for ImageStreams. |
|
| ImageStreamStatus contains information about the state of this image stream. |
8.1.1. .spec
- Description
- ImageStreamSpec represents options for ImageStreams.
- Type
-
object
Property | Type | Description |
---|---|---|
|
| dockerImageRepository is optional, if specified this stream is backed by a container repository on this server Deprecated: This field is deprecated as of v3.7 and will be removed in a future release. Specify the source for the tags to be imported in each tag via the spec.tags.from reference instead. |
|
| ImageLookupPolicy describes how an image stream can be used to override the image references used by pods, builds, and other resources in a namespace. |
|
| tags map arbitrary string values to specific image locators |
|
| TagReference specifies optional annotations for images using this tag and an optional reference to an ImageStreamTag, ImageStreamImage, or DockerImage this tag should track. |
8.1.2. .spec.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 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. |
8.1.3. .spec.tags
- Description
- tags map arbitrary string values to specific image locators
- Type
-
array
8.1.4. .spec.tags[]
- 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 |
---|---|---|
|
| Optional; if specified, annotations that are applied to images retrieved via ImageStreamTags. |
| 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 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. |
|
| TagImportPolicy controls how images related to this tag will be imported. |
|
| Name of the tag |
|
| Reference states if the tag will be imported. Default value is false, which means the tag will be imported. |
|
| 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. |
8.1.5. .spec.tags[].importPolicy
- Description
- TagImportPolicy controls how images related to this tag will be imported.
- Type
-
object
Property | Type | Description |
---|---|---|
|
| ImportMode describes how to import an image manifest. |
|
| Insecure is true if the server may bypass certificate verification or connect directly over HTTP during image import. |
|
| Scheduled indicates to the server that this tag should be periodically checked to ensure it is up to date, and imported |
8.1.6. .spec.tags[].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 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 |
8.1.7. .status
- Description
- ImageStreamStatus contains information about the state of this image stream.
- Type
-
object
- Required
-
dockerImageRepository
-
Property | Type | Description |
---|---|---|
|
| DockerImageRepository represents the effective location this stream may be accessed at. May be empty until the server determines where the repository is located |
|
| PublicDockerImageRepository represents the public location from where the image can be pulled outside the cluster. This field may be empty if the administrator has not exposed the integrated registry externally. |
|
| Tags are a historical record of images associated with each tag. The first entry in the TagEvent array is the currently tagged image. |
|
| NamedTagEventList relates a tag to its image history. |
8.1.8. .status.tags
- Description
- Tags are a historical record of images associated with each tag. The first entry in the TagEvent array is the currently tagged image.
- Type
-
array
8.1.9. .status.tags[]
- Description
- NamedTagEventList relates a tag to its image history.
- Type
-
object
- Required
-
tag
-
items
-
Property | Type | Description |
---|---|---|
|
| Conditions is an array of conditions that apply to the tag event list. |
|
| TagEventCondition contains condition information for a tag event. |
|
| Standard object’s metadata. |
|
| TagEvent is used by ImageStreamStatus to keep a historical record of images associated with a tag. |
|
| Tag is the tag for which the history is recorded |
8.1.10. .status.tags[].conditions
- Description
- Conditions is an array of conditions that apply to the tag event list.
- Type
-
array
8.1.11. .status.tags[].conditions[]
- Description
- TagEventCondition contains condition information for a tag event.
- Type
-
object
- Required
-
type
-
status
-
generation
-
Property | Type | Description |
---|---|---|
|
| Generation is the spec tag generation that this status corresponds to |
| LastTransitionTIme is the time the condition transitioned from one status to another. | |
|
| Message is a human readable description of the details about last transition, complementing reason. |
|
| Reason is a brief machine readable explanation for the condition’s last transition. |
|
| Status of the condition, one of True, False, Unknown. |
|
| Type of tag event condition, currently only ImportSuccess |
8.1.12. .status.tags[].items
- Description
- Standard object’s metadata.
- Type
-
array
8.1.13. .status.tags[].items[]
- Description
- TagEvent is used by ImageStreamStatus to keep a historical record of images associated with a tag.
- Type
-
object
- Required
-
created
-
dockerImageReference
-
image
-
generation
-
Property | Type | Description |
---|---|---|
| Created holds the time the TagEvent was created | |
|
| DockerImageReference is the string that can be used to pull this image |
|
| Generation is the spec tag generation that resulted in this tag being updated |
|
| Image is the image |
8.2. API endpoints
The following API endpoints are available:
/apis/image.openshift.io/v1/imagestreams
-
GET
: list or watch objects of kind ImageStream
-
/apis/image.openshift.io/v1/watch/imagestreams
-
GET
: watch individual changes to a list of ImageStream. deprecated: use the 'watch' parameter with a list operation instead.
-
/apis/image.openshift.io/v1/namespaces/{namespace}/imagestreams
-
DELETE
: delete collection of ImageStream -
GET
: list or watch objects of kind ImageStream -
POST
: create an ImageStream
-
/apis/image.openshift.io/v1/watch/namespaces/{namespace}/imagestreams
-
GET
: watch individual changes to a list of ImageStream. deprecated: use the 'watch' parameter with a list operation instead.
-
/apis/image.openshift.io/v1/namespaces/{namespace}/imagestreams/{name}
-
DELETE
: delete an ImageStream -
GET
: read the specified ImageStream -
PATCH
: partially update the specified ImageStream -
PUT
: replace the specified ImageStream
-
/apis/image.openshift.io/v1/watch/namespaces/{namespace}/imagestreams/{name}
-
GET
: watch changes to an object of kind ImageStream. deprecated: use the 'watch' parameter with a list operation instead, filtered to a single item with the 'fieldSelector' parameter.
-
/apis/image.openshift.io/v1/namespaces/{namespace}/imagestreams/{name}/status
-
GET
: read status of the specified ImageStream -
PATCH
: partially update status of the specified ImageStream -
PUT
: replace status of the specified ImageStream
-
8.2.1. /apis/image.openshift.io/v1/imagestreams
- HTTP method
-
GET
- Description
- list or watch objects of kind ImageStream
HTTP code | Reponse body |
---|---|
200 - OK |
|
401 - Unauthorized | Empty |
8.2.2. /apis/image.openshift.io/v1/watch/imagestreams
- HTTP method
-
GET
- Description
- watch individual changes to a list of ImageStream. deprecated: use the 'watch' parameter with a list operation instead.
HTTP code | Reponse body |
---|---|
200 - OK |
|
401 - Unauthorized | Empty |
8.2.3. /apis/image.openshift.io/v1/namespaces/{namespace}/imagestreams
- HTTP method
-
DELETE
- Description
- delete collection of ImageStream
Parameter | Type | Description |
---|---|---|
|
| When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed |
HTTP code | Reponse body |
---|---|
200 - OK |
|
401 - Unauthorized | Empty |
- HTTP method
-
GET
- Description
- list or watch objects of kind ImageStream
HTTP code | Reponse body |
---|---|
200 - OK |
|
401 - Unauthorized | Empty |
- HTTP method
-
POST
- Description
- create an ImageStream
Parameter | Type | Description |
---|---|---|
|
| When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed |
|
| fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields. Valid values are: - Ignore: This will ignore any unknown fields that are silently dropped from the object, and will ignore all but the last duplicate field that the decoder encounters. This is the default behavior prior to v1.23. - Warn: This will send a warning via the standard warning response header for each unknown field that is dropped from the object, and for each duplicate field that is encountered. The request will still succeed if there are no other errors, and will only persist the last of any duplicate fields. This is the default in v1.23+ - Strict: This will fail the request with a BadRequest error if any unknown fields would be dropped from the object, or if any duplicate fields are present. The error returned from the server will contain all unknown and duplicate fields encountered. |
Parameter | Type | Description |
---|---|---|
|
|
HTTP code | Reponse body |
---|---|
200 - OK |
|
201 - Created |
|
202 - Accepted |
|
401 - Unauthorized | Empty |
8.2.4. /apis/image.openshift.io/v1/watch/namespaces/{namespace}/imagestreams
- HTTP method
-
GET
- Description
- watch individual changes to a list of ImageStream. deprecated: use the 'watch' parameter with a list operation instead.
HTTP code | Reponse body |
---|---|
200 - OK |
|
401 - Unauthorized | Empty |
8.2.5. /apis/image.openshift.io/v1/namespaces/{namespace}/imagestreams/{name}
Parameter | Type | Description |
---|---|---|
|
| name of the ImageStream |
- HTTP method
-
DELETE
- Description
- delete an ImageStream
Parameter | Type | Description |
---|---|---|
|
| When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed |
HTTP code | Reponse body |
---|---|
200 - OK |
|
202 - Accepted |
|
401 - Unauthorized | Empty |
- HTTP method
-
GET
- Description
- read the specified ImageStream
HTTP code | Reponse body |
---|---|
200 - OK |
|
401 - Unauthorized | Empty |
- HTTP method
-
PATCH
- Description
- partially update the specified ImageStream
Parameter | Type | Description |
---|---|---|
|
| When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed |
|
| fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields. Valid values are: - Ignore: This will ignore any unknown fields that are silently dropped from the object, and will ignore all but the last duplicate field that the decoder encounters. This is the default behavior prior to v1.23. - Warn: This will send a warning via the standard warning response header for each unknown field that is dropped from the object, and for each duplicate field that is encountered. The request will still succeed if there are no other errors, and will only persist the last of any duplicate fields. This is the default in v1.23+ - Strict: This will fail the request with a BadRequest error if any unknown fields would be dropped from the object, or if any duplicate fields are present. The error returned from the server will contain all unknown and duplicate fields encountered. |
HTTP code | Reponse body |
---|---|
200 - OK |
|
201 - Created |
|
401 - Unauthorized | Empty |
- HTTP method
-
PUT
- Description
- replace the specified ImageStream
Parameter | Type | Description |
---|---|---|
|
| When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed |
|
| fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields. Valid values are: - Ignore: This will ignore any unknown fields that are silently dropped from the object, and will ignore all but the last duplicate field that the decoder encounters. This is the default behavior prior to v1.23. - Warn: This will send a warning via the standard warning response header for each unknown field that is dropped from the object, and for each duplicate field that is encountered. The request will still succeed if there are no other errors, and will only persist the last of any duplicate fields. This is the default in v1.23+ - Strict: This will fail the request with a BadRequest error if any unknown fields would be dropped from the object, or if any duplicate fields are present. The error returned from the server will contain all unknown and duplicate fields encountered. |
Parameter | Type | Description |
---|---|---|
|
|
HTTP code | Reponse body |
---|---|
200 - OK |
|
201 - Created |
|
401 - Unauthorized | Empty |
8.2.6. /apis/image.openshift.io/v1/watch/namespaces/{namespace}/imagestreams/{name}
Parameter | Type | Description |
---|---|---|
|
| name of the ImageStream |
- HTTP method
-
GET
- Description
- watch changes to an object of kind ImageStream. deprecated: use the 'watch' parameter with a list operation instead, filtered to a single item with the 'fieldSelector' parameter.
HTTP code | Reponse body |
---|---|
200 - OK |
|
401 - Unauthorized | Empty |
8.2.7. /apis/image.openshift.io/v1/namespaces/{namespace}/imagestreams/{name}/status
Parameter | Type | Description |
---|---|---|
|
| name of the ImageStream |
- HTTP method
-
GET
- Description
- read status of the specified ImageStream
HTTP code | Reponse body |
---|---|
200 - OK |
|
401 - Unauthorized | Empty |
- HTTP method
-
PATCH
- Description
- partially update status of the specified ImageStream
Parameter | Type | Description |
---|---|---|
|
| When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed |
|
| fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields. Valid values are: - Ignore: This will ignore any unknown fields that are silently dropped from the object, and will ignore all but the last duplicate field that the decoder encounters. This is the default behavior prior to v1.23. - Warn: This will send a warning via the standard warning response header for each unknown field that is dropped from the object, and for each duplicate field that is encountered. The request will still succeed if there are no other errors, and will only persist the last of any duplicate fields. This is the default in v1.23+ - Strict: This will fail the request with a BadRequest error if any unknown fields would be dropped from the object, or if any duplicate fields are present. The error returned from the server will contain all unknown and duplicate fields encountered. |
HTTP code | Reponse body |
---|---|
200 - OK |
|
201 - Created |
|
401 - Unauthorized | Empty |
- HTTP method
-
PUT
- Description
- replace status of the specified ImageStream
Parameter | Type | Description |
---|---|---|
|
| When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed |
|
| fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields. Valid values are: - Ignore: This will ignore any unknown fields that are silently dropped from the object, and will ignore all but the last duplicate field that the decoder encounters. This is the default behavior prior to v1.23. - Warn: This will send a warning via the standard warning response header for each unknown field that is dropped from the object, and for each duplicate field that is encountered. The request will still succeed if there are no other errors, and will only persist the last of any duplicate fields. This is the default in v1.23+ - Strict: This will fail the request with a BadRequest error if any unknown fields would be dropped from the object, or if any duplicate fields are present. The error returned from the server will contain all unknown and duplicate fields encountered. |
Parameter | Type | Description |
---|---|---|
|
|
HTTP code | Reponse body |
---|---|
200 - OK |
|
201 - Created |
|
401 - Unauthorized | Empty |