ImageDigestMirrorSet [config.openshift.io/v1]

    ImageDigestMirrorSet holds cluster-wide information about how to handle registry mirror rules on using digest pull specification. When multiple policies are defined, the outcome of the behavior is defined on each field. Compatibility level 1: Stable within a major release for a minimum of 12 months or 3 minor releases (whichever is longer).

    Type

    Required

    • spec

    Description

    spec holds user settable values for configuration

    Type

    object

    PropertyTypeDescription

    imageDigestMirrors

    array

    imageDigestMirrors allows images referenced by image digests in pods to be pulled from alternative mirrored repository locations. The image pull specification provided to the pod will be compared to the source locations described in imageDigestMirrors and the image may be pulled down from any of the mirrors in the list instead of the specified repository allowing administrators to choose a potentially faster mirror. To use mirrors to pull images using tag specification, users should configure a list of mirrors using “ImageTagMirrorSet” CRD. If the image pull specification matches the repository of “source” in multiple imagedigestmirrorset objects, only the objects which define the most specific namespace match will be used. For example, if there are objects using quay.io/libpod and quay.io/libpod/busybox as the “source”, only the objects using quay.io/libpod/busybox are going to apply for pull specification quay.io/libpod/busybox. Each “source” repository is treated independently; configurations for different “source” repositories don’t interact. If the “mirrors” is not specified, the image will continue to be pulled from the specified repository in the pull spec. When multiple policies are defined for the same “source” repository, the sets of defined mirrors will be merged together, preserving the relative order of the mirrors, if possible. For example, if policy A has mirrors a, b, c and policy B has mirrors c, d, e, the mirrors will be used in the order a, b, c, d, e. If the orders of mirror entries conflict (e.g. a, b vs. b, a) the configuration is not rejected but the resulting order is unspecified. Users who want to use a specific order of mirrors, should configure them into one list of mirrors using the expected order.

    imageDigestMirrors[]

    object

    ImageDigestMirrors holds cluster-wide information about how to handle mirrors in the registries config.

    .spec.imageDigestMirrors

    Description

    imageDigestMirrors allows images referenced by image digests in pods to be pulled from alternative mirrored repository locations. The image pull specification provided to the pod will be compared to the source locations described in imageDigestMirrors and the image may be pulled down from any of the mirrors in the list instead of the specified repository allowing administrators to choose a potentially faster mirror. To use mirrors to pull images using tag specification, users should configure a list of mirrors using “ImageTagMirrorSet” CRD. If the image pull specification matches the repository of “source” in multiple imagedigestmirrorset objects, only the objects which define the most specific namespace match will be used. For example, if there are objects using quay.io/libpod and quay.io/libpod/busybox as the “source”, only the objects using quay.io/libpod/busybox are going to apply for pull specification quay.io/libpod/busybox. Each “source” repository is treated independently; configurations for different “source” repositories don’t interact. If the “mirrors” is not specified, the image will continue to be pulled from the specified repository in the pull spec. When multiple policies are defined for the same “source” repository, the sets of defined mirrors will be merged together, preserving the relative order of the mirrors, if possible. For example, if policy A has mirrors a, b, c and policy B has mirrors c, d, e, the mirrors will be used in the order a, b, c, d, e. If the orders of mirror entries conflict (e.g. a, b vs. b, a) the configuration is not rejected but the resulting order is unspecified. Users who want to use a specific order of mirrors, should configure them into one list of mirrors using the expected order.

    Type

    array

    Description

    ImageDigestMirrors holds cluster-wide information about how to handle mirrors in the registries config.

    Type

    object

    Required

    • source
    PropertyTypeDescription

    mirrorSourcePolicy

    string

    mirrorSourcePolicy defines the fallback policy if fails to pull image from the mirrors. If unset, the image will continue to be pulled from the the repository in the pull spec. sourcePolicy is valid configuration only when one or more mirrors are in the mirror list.

    mirrors

    array (string)

    mirrors is zero or more locations that may also contain the same images. No mirror will be configured if not specified. Images can be pulled from these mirrors only if they are referenced by their digests. The mirrored location is obtained by replacing the part of the input reference that matches source by the mirrors entry, e.g. for registry.redhat.io/product/repo reference, a (source, mirror) pair .redhat.io, mirror.local/redhat causes a mirror.local/redhat/product/repo repository to be used. The order of mirrors in this list is treated as the user’s desired priority, while source is by default considered lower priority than all mirrors. If no mirror is specified or all image pulls from the mirror list fail, the image will continue to be pulled from the repository in the pull spec unless explicitly prohibited by “mirrorSourcePolicy” Other cluster configuration, including (but not limited to) other imageDigestMirrors objects, may impact the exact order mirrors are contacted in, or some mirrors may be contacted in parallel, so this should be considered a preference rather than a guarantee of ordering. “mirrors” uses one of the following formats: host[:port] host[:port]/namespace[/namespace…] host[:port]/namespace[/namespace…]/repo for more information about the format, see the document about the location field: https://github.com/containers/image/blob/main/docs/containers-registries.conf.5.md#choosing-a-registry-toml-table

    source

    string

    source matches the repository that users refer to, e.g. in image pull specifications. Setting source to a registry hostname e.g. docker.io. quay.io, or registry.redhat.io, will match the image pull specification of corressponding registry. “source” uses one of the following formats: host[:port] host[:port]/namespace[/namespace…] host[:port]/namespace[/namespace…]/repo [.]host for more information about the format, see the document about the location field:

    .status

    Description

    status contains the observed state of the resource.

    Type

    object

    API endpoints

    The following API endpoints are available:

    • /apis/config.openshift.io/v1/imagedigestmirrorsets

      • DELETE: delete collection of ImageDigestMirrorSet

      • GET: list objects of kind ImageDigestMirrorSet

      • POST: create an ImageDigestMirrorSet

    • /apis/config.openshift.io/v1/imagedigestmirrorsets/{name}/status

      • GET: read status of the specified ImageDigestMirrorSet

      • PATCH: partially update status of the specified ImageDigestMirrorSet

    Table 1. Global query parameters
    ParameterTypeDescription

    pretty

    string

    If ‘true’, then the output is pretty printed.

    HTTP method

    DELETE

    Description

    delete collection of ImageDigestMirrorSet

    Table 2. Query parameters
    ParameterTypeDescription

    allowWatchBookmarks

    boolean

    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.

    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 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.

    string

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

    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

    resourceVersion sets a constraint on what resource versions a request may be served from. See for details.

    Defaults to unset

    resourceVersionMatch

    string

    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

    timeoutSeconds

    integer

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

    watch

    boolean

    Table 3. HTTP responses
    HTTP codeReponse body

    200 - OK

    schema

    401 - Unauthorized

    Empty

    HTTP method

    GET

    Description

    list objects of kind ImageDigestMirrorSet

    Table 4. Query parameters
    ParameterTypeDescription

    allowWatchBookmarks

    boolean

    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.

    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 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.

    fieldSelector

    string

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

    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

    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

    string

    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 for details.

    Defaults to unset

    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 5. HTTP responses
    HTTP codeReponse body

    200 - OK

    ImageDigestMirrorSetList schema

    401 - Unauthorized

    Empty

    HTTP method

    POST

    Description

    create an ImageDigestMirrorSet

    Table 6. Query parameters
    ParameterTypeDescription

    dryRun

    string

    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

    string

    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 .

    fieldValidation

    string

    fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields, provided that the ServerSideFieldValidation feature gate is also enabled. 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 and is the default behavior when the ServerSideFieldValidation feature gate is disabled. - 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 when the ServerSideFieldValidation feature gate is enabled. - 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.

    Table 7. Body parameters
    ParameterTypeDescription

    body

    ImageDigestMirrorSet schema

    Table 8. HTTP responses
    HTTP codeReponse body

    200 - OK

    schema

    201 - Created

    ImageDigestMirrorSet schema

    202 - Accepted

    schema

    401 - Unauthorized

    Empty

    /apis/config.openshift.io/v1/imagedigestmirrorsets/{name}

    Table 10. Global query parameters
    ParameterTypeDescription

    pretty

    string

    If ‘true’, then the output is pretty printed.

    HTTP method

    DELETE

    Description

    delete an ImageDigestMirrorSet

    Table 11. Query parameters
    ParameterTypeDescription

    dryRun

    string

    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

    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

    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
    ParameterTypeDescription

    body

    schema

    Table 13. HTTP responses
    HTTP codeReponse body

    200 - OK

    Status schema

    202 - Accepted

    schema

    401 - Unauthorized

    Empty

    HTTP method

    GET

    Description

    read the specified ImageDigestMirrorSet

    Table 14. Query parameters
    ParameterTypeDescription

    resourceVersion

    string

    Defaults to unset

    Table 15. HTTP responses
    HTTP codeReponse body

    200 - OK

    ImageDigestMirrorSet schema

    401 - Unauthorized

    Empty

    HTTP method

    PATCH

    Description

    partially update the specified ImageDigestMirrorSet

    Table 16. Query parameters
    ParameterTypeDescription

    dryRun

    string

    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

    string

    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 .

    fieldValidation

    string

    fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields, provided that the ServerSideFieldValidation feature gate is also enabled. 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 and is the default behavior when the ServerSideFieldValidation feature gate is disabled. - 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 when the ServerSideFieldValidation feature gate is enabled. - 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.

    Table 17. Body parameters
    ParameterTypeDescription

    body

    Patch schema

    Table 18. HTTP responses
    HTTP codeReponse body

    200 - OK

    schema

    401 - Unauthorized

    Empty

    HTTP method

    PUT

    Description

    replace the specified ImageDigestMirrorSet

    Table 19. Query parameters
    ParameterTypeDescription

    dryRun

    string

    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

    string

    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

    string

    fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields, provided that the ServerSideFieldValidation feature gate is also enabled. 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 and is the default behavior when the ServerSideFieldValidation feature gate is disabled. - 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 when the ServerSideFieldValidation feature gate is enabled. - 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.

    Table 21. HTTP responses
    HTTP codeReponse body

    200 - OK

    schema

    201 - Created

    ImageDigestMirrorSet schema

    401 - Unauthorized

    Empty

    Table 22. Global path parameters
    ParameterTypeDescription

    name

    string

    name of the ImageDigestMirrorSet

    Table 23. Global query parameters
    ParameterTypeDescription

    pretty

    string

    If ‘true’, then the output is pretty printed.

    HTTP method

    GET

    Description

    read status of the specified ImageDigestMirrorSet

    Table 24. Query parameters
    ParameterTypeDescription

    resourceVersion

    string

    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

    Table 25. HTTP responses
    HTTP codeReponse body

    200 - OK

    schema

    401 - Unauthorized

    Empty

    HTTP method

    PATCH

    Description

    partially update status of the specified ImageDigestMirrorSet

    Table 26. Query parameters
    ParameterTypeDescription

    dryRun

    string

    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

    string

    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

    string

    fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields, provided that the ServerSideFieldValidation feature gate is also enabled. 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 and is the default behavior when the ServerSideFieldValidation feature gate is disabled. - 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 when the ServerSideFieldValidation feature gate is enabled. - 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.

    Table 27. Body parameters
    ParameterTypeDescription

    body

    schema

    Table 28. HTTP responses
    HTTP codeReponse body

    200 - OK

    ImageDigestMirrorSet schema

    401 - Unauthorized

    Empty

    HTTP method

    PUT

    Description

    replace status of the specified ImageDigestMirrorSet

    Table 29. Query parameters
    ParameterTypeDescription

    dryRun

    string

    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

    string

    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 .

    fieldValidation

    string

    fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields, provided that the ServerSideFieldValidation feature gate is also enabled. 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 and is the default behavior when the ServerSideFieldValidation feature gate is disabled. - 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 when the feature gate is enabled. - 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.

    Table 30. Body parameters
    ParameterTypeDescription

    body

    ImageDigestMirrorSet schema