Chapter 2. Image [image.openshift.io/v1]
- 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
2.1. 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 |
|
| 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 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. |
|
| ImageLayer represents a single layer of the image. Some images may have multiple layers. Some may have none. |
|
| DockerImageManifest is the raw JSON of the manifest |
|
| DockerImageManifestMediaType specifies the mediaType of manifest. This is a part of manifest schema v2. |
|
| DockerImageManifests holds information about sub-manifests when the image represents a manifest list. When this field is present, no DockerImageLayers should be specified. |
|
| ImageManifest represents sub-manifests of a manifest list. The Digest field points to a regular Image object. |
| DockerImageMetadata contains metadata about this image | |
|
| DockerImageMetadataVersion conveys the version of the object, which if empty defaults to "1.0" |
|
| DockerImageReference is the string that can be used to pull this image. |
|
| DockerImageSignatures provides the signatures as opaque blobs. This is a part of manifest schema v1. |
|
| 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 |
| ||
|
| Signatures holds all signatures of the image. |
|
| 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). |
2.1.1. .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
2.1.2. .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 of the referenced object. |
|
| Name of the layer as defined by the underlying store. |
|
| Size of the layer in bytes as defined by the underlying store. |
2.1.3. .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
2.1.4. .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 specifies the supported CPU architecture, for example |
|
| Digest is the unique identifier for the manifest. It refers to an Image object. |
|
| ManifestSize represents the size of the raw object contents, in bytes. |
|
| 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 specifies the operating system, for example |
|
| Variant is an optional field repreenting a variant of the CPU, for example v6 to specify a particular CPU variant of the ARM CPU. |
2.1.5. .signatures
- Description
- Signatures holds all signatures of the image.
- Type
-
array
2.1.6. .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 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 represent the latest available observations of a signature’s current state. |
|
| SignatureCondition describes an image signature condition of particular kind at particular probe time. |
|
| Required: An opaque binary string which is an image’s signature. |
| If specified, it is the time of signature’s creation. | |
|
| 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"). |
|
| SignatureIssuer holds information about an issuer of signing certificate or key. |
|
| SignatureSubject holds information about a person or entity who created the signature. |
|
| 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 |
| ||
|
| Contains claims from the signature. |
|
| Required: Describes a type of stored blob. |
2.1.7. .signatures[].conditions
- Description
- Conditions represent the latest available observations of a signature’s current state.
- Type
-
array
2.1.8. .signatures[].conditions[]
- Description
- SignatureCondition describes an image signature condition of particular kind at particular probe time.
- Type
-
object
- Required
-
type
-
status
-
Property | Type | Description |
---|---|---|
| Last time the condition was checked. | |
| Last time the condition transit from one status to another. | |
|
| Human readable message indicating details about last transition. |
|
| (brief) reason for the condition’s last transition. |
|
| Status of the condition, one of True, False, Unknown. |
|
| Type of signature condition, Complete or Failed. |
2.1.9. .signatures[].issuedBy
- Description
- SignatureIssuer holds information about an issuer of signing certificate or key.
- Type
-
object
Property | Type | Description |
---|---|---|
|
| Common name (e.g. openshift-signing-service). |
|
| Organization name. |
2.1.10. .signatures[].issuedTo
- Description
- SignatureSubject holds information about a person or entity who created the signature.
- Type
-
object
- Required
-
publicKeyID
-
Property | Type | Description |
---|---|---|
|
| Common name (e.g. openshift-signing-service). |
|
| Organization name. |
|
| 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). |
2.2. API endpoints
The following API endpoints are available:
/apis/image.openshift.io/v1/images
-
DELETE
: delete collection of Image -
GET
: list or watch objects of kind Image -
POST
: create an Image
-
/apis/image.openshift.io/v1/watch/images
-
GET
: watch individual changes to a list of Image. deprecated: use the 'watch' parameter with a list operation instead.
-
/apis/image.openshift.io/v1/images/{name}
-
DELETE
: delete an Image -
GET
: read the specified Image -
PATCH
: partially update the specified Image -
PUT
: replace the specified Image
-
/apis/image.openshift.io/v1/watch/images/{name}
-
GET
: watch changes to an object of kind Image. deprecated: use the 'watch' parameter with a list operation instead, filtered to a single item with the 'fieldSelector' parameter.
-
2.2.1. /apis/image.openshift.io/v1/images
Parameter | Type | Description |
---|---|---|
|
| If 'true', then the output is pretty printed. |
- HTTP method
-
DELETE
- Description
- delete collection of Image
Parameter | Type | Description |
---|---|---|
|
| 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 together with a continue token. If the client needs a consistent list, it must restart their list without the continue field. Otherwise, the client may send another list request with the token received with the 410 error, the server will respond with a list starting from the next key, but from the latest snapshot, which is inconsistent from the previous list results - objects that are created, modified, or deleted after the first list request will be included in the response, as long as their keys are after the "next key". 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. |
|
| 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 |
|
| A selector to restrict the list of returned objects by their fields. Defaults to everything. |
|
| 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. |
|
| A selector to restrict the list of returned objects by their labels. Defaults to everything. |
|
|
limit is a maximum number of responses to return for a list call. If more items exist, the server will set the 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. |
|
| 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. |
|
| 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. |
|
| resourceVersion sets a constraint on what resource versions a request may be served from. See https://kubernetes.io/docs/reference/using-api/api-concepts/#resource-versions for details. Defaults to unset |
|
| resourceVersionMatch determines how resourceVersion is applied to list calls. It is highly recommended that resourceVersionMatch be set for list calls where resourceVersion is set See https://kubernetes.io/docs/reference/using-api/api-concepts/#resource-versions for details. Defaults to unset |
|
| Timeout for the list/watch call. This limits the duration of the call, regardless of any activity or inactivity. |
Parameter | Type | Description |
---|---|---|
|
|
HTTP code | Reponse body |
---|---|
200 - OK |
|
401 - Unauthorized | Empty |
- HTTP method
-
GET
- Description
- list or watch objects of kind Image
Parameter | Type | Description |
---|---|---|
|
| allowWatchBookmarks requests watch events with type "BOOKMARK". Servers that do not implement bookmarks may ignore this flag and bookmarks are sent at the server’s discretion. Clients should not assume bookmarks are returned at any specific interval, nor may they assume the server will send any BOOKMARK event during a session. If this is not a watch, this field is ignored. |
|
| 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 together with a continue token. If the client needs a consistent list, it must restart their list without the continue field. Otherwise, the client may send another list request with the token received with the 410 error, the server will respond with a list starting from the next key, but from the latest snapshot, which is inconsistent from the previous list results - objects that are created, modified, or deleted after the first list request will be included in the response, as long as their keys are after the "next key". 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. |
|
| A selector to restrict the list of returned objects by their fields. Defaults to everything. |
|
| A selector to restrict the list of returned objects by their labels. Defaults to everything. |
|
|
limit is a maximum number of responses to return for a list call. If more items exist, the server will set the 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 sets a constraint on what resource versions a request may be served from. See https://kubernetes.io/docs/reference/using-api/api-concepts/#resource-versions for details. Defaults to unset |
|
| resourceVersionMatch determines how resourceVersion is applied to list calls. It is highly recommended that resourceVersionMatch be set for list calls where resourceVersion is set See https://kubernetes.io/docs/reference/using-api/api-concepts/#resource-versions for details. Defaults to unset |
|
| Timeout for the list/watch call. This limits the duration of the call, regardless of any activity or inactivity. |
|
| Watch for changes to the described resources and return them as a stream of add, update, and remove notifications. Specify resourceVersion. |
HTTP code | Reponse body |
---|---|
200 - OK |
|
401 - Unauthorized | Empty |
- HTTP method
-
POST
- Description
- create an Image
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 |
|
| fieldManager is a name associated with the actor or entity that is making these changes. The value must be less than or 128 characters long, and only contain printable characters, as defined by https://golang.org/pkg/unicode/#IsPrint. |
|
|
fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields, provided that the |
Parameter | Type | Description |
---|---|---|
|
|
HTTP code | Reponse body |
---|---|
200 - OK |
|
201 - Created |
|
202 - Accepted |
|
401 - Unauthorized | Empty |
2.2.2. /apis/image.openshift.io/v1/watch/images
Parameter | Type | Description |
---|---|---|
|
| allowWatchBookmarks requests watch events with type "BOOKMARK". Servers that do not implement bookmarks may ignore this flag and bookmarks are sent at the server’s discretion. Clients should not assume bookmarks are returned at any specific interval, nor may they assume the server will send any BOOKMARK event during a session. If this is not a watch, this field is ignored. |
|
| 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 together with a continue token. If the client needs a consistent list, it must restart their list without the continue field. Otherwise, the client may send another list request with the token received with the 410 error, the server will respond with a list starting from the next key, but from the latest snapshot, which is inconsistent from the previous list results - objects that are created, modified, or deleted after the first list request will be included in the response, as long as their keys are after the "next key". 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. |
|
| A selector to restrict the list of returned objects by their fields. Defaults to everything. |
|
| A selector to restrict the list of returned objects by their labels. Defaults to everything. |
|
|
limit is a maximum number of responses to return for a list call. If more items exist, the server will set the 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. |
|
| If 'true', then the output is pretty printed. |
|
| resourceVersion sets a constraint on what resource versions a request may be served from. See https://kubernetes.io/docs/reference/using-api/api-concepts/#resource-versions for details. Defaults to unset |
|
| resourceVersionMatch determines how resourceVersion is applied to list calls. It is highly recommended that resourceVersionMatch be set for list calls where resourceVersion is set See https://kubernetes.io/docs/reference/using-api/api-concepts/#resource-versions for details. Defaults to unset |
|
| Timeout for the list/watch call. This limits the duration of the call, regardless of any activity or inactivity. |
|
| 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
- watch individual changes to a list of Image. deprecated: use the 'watch' parameter with a list operation instead.
HTTP code | Reponse body |
---|---|
200 - OK |
|
401 - Unauthorized | Empty |
2.2.3. /apis/image.openshift.io/v1/images/{name}
Parameter | Type | Description |
---|---|---|
|
| name of the Image |
Parameter | Type | Description |
---|---|---|
|
| If 'true', then the output is pretty printed. |
- HTTP method
-
DELETE
- Description
- delete an Image
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 |
|
| 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. |
|
| 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. |
|
| 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. |
Parameter | Type | Description |
---|---|---|
|
|
HTTP code | Reponse body |
---|---|
200 - OK |
|
202 - Accepted |
|
401 - Unauthorized | Empty |
- HTTP method
-
GET
- Description
- read the specified Image
HTTP code | Reponse body |
---|---|
200 - OK |
|
401 - Unauthorized | Empty |
- HTTP method
-
PATCH
- Description
- partially update the specified Image
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 |
|
| fieldManager is a name associated with the actor or entity that is making these changes. The value must be less than or 128 characters long, and only contain printable characters, as defined by https://golang.org/pkg/unicode/#IsPrint. This field is required for apply requests (application/apply-patch) but optional for non-apply patch types (JsonPatch, MergePatch, StrategicMergePatch). |
|
|
fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields, provided that the |
|
| Force is going to "force" Apply requests. It means user will re-acquire conflicting fields owned by other people. Force flag must be unset for non-apply patch requests. |
Parameter | Type | Description |
---|---|---|
|
|
HTTP code | Reponse body |
---|---|
200 - OK |
|
201 - Created |
|
401 - Unauthorized | Empty |
- HTTP method
-
PUT
- Description
- replace the specified Image
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 |
|
| fieldManager is a name associated with the actor or entity that is making these changes. The value must be less than or 128 characters long, and only contain printable characters, as defined by https://golang.org/pkg/unicode/#IsPrint. |
|
|
fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields, provided that the |
Parameter | Type | Description |
---|---|---|
|
|
HTTP code | Reponse body |
---|---|
200 - OK |
|
201 - Created |
|
401 - Unauthorized | Empty |
2.2.4. /apis/image.openshift.io/v1/watch/images/{name}
Parameter | Type | Description |
---|---|---|
|
| name of the Image |
Parameter | Type | Description |
---|---|---|
|
| allowWatchBookmarks requests watch events with type "BOOKMARK". Servers that do not implement bookmarks may ignore this flag and bookmarks are sent at the server’s discretion. Clients should not assume bookmarks are returned at any specific interval, nor may they assume the server will send any BOOKMARK event during a session. If this is not a watch, this field is ignored. |
|
| 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 together with a continue token. If the client needs a consistent list, it must restart their list without the continue field. Otherwise, the client may send another list request with the token received with the 410 error, the server will respond with a list starting from the next key, but from the latest snapshot, which is inconsistent from the previous list results - objects that are created, modified, or deleted after the first list request will be included in the response, as long as their keys are after the "next key". 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. |
|
| A selector to restrict the list of returned objects by their fields. Defaults to everything. |
|
| A selector to restrict the list of returned objects by their labels. Defaults to everything. |
|
|
limit is a maximum number of responses to return for a list call. If more items exist, the server will set the 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. |
|
| If 'true', then the output is pretty printed. |
|
| resourceVersion sets a constraint on what resource versions a request may be served from. See https://kubernetes.io/docs/reference/using-api/api-concepts/#resource-versions for details. Defaults to unset |
|
| resourceVersionMatch determines how resourceVersion is applied to list calls. It is highly recommended that resourceVersionMatch be set for list calls where resourceVersion is set See https://kubernetes.io/docs/reference/using-api/api-concepts/#resource-versions for details. Defaults to unset |
|
| Timeout for the list/watch call. This limits the duration of the call, regardless of any activity or inactivity. |
|
| 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
- watch changes to an object of kind Image. 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 |