VolumeSnapshotContent [snapshot.storage.k8s.io/v1]

    VolumeSnapshotContent represents the actual “on-disk” snapshot object in the underlying storage system

    Type

    Required

    • spec

    .spec

    Description

    spec defines properties of a VolumeSnapshotContent created by the underlying storage system. Required.

    Type

    object

    Required

    • deletionPolicy

    • source

    • volumeSnapshotRef

    PropertyTypeDescription

    deletionPolicy

    string

    deletionPolicy determines whether this VolumeSnapshotContent and its physical snapshot on the underlying storage system should be deleted when its bound VolumeSnapshot is deleted. Supported values are “Retain” and “Delete”. “Retain” means that the VolumeSnapshotContent and its physical snapshot on underlying storage system are kept. “Delete” means that the VolumeSnapshotContent and its physical snapshot on underlying storage system are deleted. For dynamically provisioned snapshots, this field will automatically be filled in by the CSI snapshotter sidecar with the “DeletionPolicy” field defined in the corresponding VolumeSnapshotClass. For pre-existing snapshots, users MUST specify this field when creating the VolumeSnapshotContent object. Required.

    driver

    string

    driver is the name of the CSI driver used to create the physical snapshot on the underlying storage system. This MUST be the same as the name returned by the CSI GetPluginName() call for that driver. Required.

    source

    object

    source specifies whether the snapshot is (or should be) dynamically provisioned or already exists, and just requires a Kubernetes object representation. This field is immutable after creation. Required.

    volumeSnapshotClassName

    string

    name of the VolumeSnapshotClass from which this snapshot was (or will be) created. Note that after provisioning, the VolumeSnapshotClass may be deleted or recreated with different set of values, and as such, should not be referenced post-snapshot creation.

    volumeSnapshotRef

    object

    volumeSnapshotRef specifies the VolumeSnapshot object to which this VolumeSnapshotContent object is bound. VolumeSnapshot.Spec.VolumeSnapshotContentName field must reference to this VolumeSnapshotContent’s name for the bidirectional binding to be valid. For a pre-existing VolumeSnapshotContent object, name and namespace of the VolumeSnapshot object MUST be provided for binding to happen. This field is immutable after creation. Required.

    .spec.source

    Description

    source specifies whether the snapshot is (or should be) dynamically provisioned or already exists, and just requires a Kubernetes object representation. This field is immutable after creation. Required.

    Type

    object

    PropertyTypeDescription

    snapshotHandle

    string

    snapshotHandle specifies the CSI “snapshot_id” of a pre-existing snapshot on the underlying storage system for which a Kubernetes object representation was (or should be) created. This field is immutable.

    volumeHandle

    string

    volumeHandle specifies the CSI “volume_id” of the volume from which a snapshot should be dynamically taken from. This field is immutable.

    .spec.volumeSnapshotRef

    Description

    volumeSnapshotRef specifies the VolumeSnapshot object to which this VolumeSnapshotContent object is bound. VolumeSnapshot.Spec.VolumeSnapshotContentName field must reference to this VolumeSnapshotContent’s name for the bidirectional binding to be valid. For a pre-existing VolumeSnapshotContent object, name and namespace of the VolumeSnapshot object MUST be provided for binding to happen. This field is immutable after creation. Required.

    Type

    object

    PropertyTypeDescription

    apiVersion

    string

    API version of the referent.

    fieldPath

    string

    If referring to a piece of an object instead of an entire object, this string should contain a valid JSON/Go field access statement, such as desiredState.manifest.containers[2]. For example, if the object reference is to a container within a pod, this would take on a value like: “spec.containers{name}” (where “name” refers to the name of the container that triggered the event) or if no container name is specified “spec.containers[2]” (container with index 2 in this pod). This syntax is chosen only to have some well-defined way of referencing a part of an object. TODO: this design is not final and this field is subject to change in the future.

    kind

    string

    Kind of the referent. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds

    name

    string

    Name of the referent. More info:

    namespace

    string

    Namespace of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/namespaces/

    resourceVersion

    string

    Specific resourceVersion to which this reference is made, if any. More info:

    uid

    string

    UID of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#uids

    .status

    Description

    status represents the current information of a snapshot.

    Type

    object

    PropertyTypeDescription

    creationTime

    integer

    creationTime is the timestamp when the point-in-time snapshot is taken by the underlying storage system. In dynamic snapshot creation case, this field will be filled in by the CSI snapshotter sidecar with the “creation_time” value returned from CSI “CreateSnapshot” gRPC call. For a pre-existing snapshot, this field will be filled with the “creation_time” value returned from the CSI “ListSnapshots” gRPC call if the driver supports it. If not specified, it indicates the creation time is unknown. The format of this field is a Unix nanoseconds time encoded as an int64. On Unix, the command date +%s%N returns the current time in nanoseconds since 1970-01-01 00:00:00 UTC.

    error

    object

    error is the last observed error during snapshot creation, if any. Upon success after retry, this error field will be cleared.

    readyToUse

    boolean

    readyToUse indicates if a snapshot is ready to be used to restore a volume. In dynamic snapshot creation case, this field will be filled in by the CSI snapshotter sidecar with the “ready_to_use” value returned from CSI “CreateSnapshot” gRPC call. For a pre-existing snapshot, this field will be filled with the “ready_to_use” value returned from the CSI “ListSnapshots” gRPC call if the driver supports it, otherwise, this field will be set to “True”. If not specified, it means the readiness of a snapshot is unknown.

    restoreSize

    integer

    restoreSize represents the complete size of the snapshot in bytes. In dynamic snapshot creation case, this field will be filled in by the CSI snapshotter sidecar with the “size_bytes” value returned from CSI “CreateSnapshot” gRPC call. For a pre-existing snapshot, this field will be filled with the “size_bytes” value returned from the CSI “ListSnapshots” gRPC call if the driver supports it. When restoring a volume from this snapshot, the size of the volume MUST NOT be smaller than the restoreSize if it is specified, otherwise the restoration will fail. If not specified, it indicates that the size is unknown.

    snapshotHandle

    string

    snapshotHandle is the CSI “snapshot_id” of a snapshot on the underlying storage system. If not specified, it indicates that dynamic snapshot creation has either failed or it is still in progress.

    .status.error

    Description

    error is the last observed error during snapshot creation, if any. Upon success after retry, this error field will be cleared.

    Type

    object

    PropertyTypeDescription

    message

    message is a string detailing the encountered error during snapshot creation if specified. NOTE: message may be logged, and it should not contain sensitive information.

    time

    time is the timestamp when the error was encountered.

    API endpoints

    The following API endpoints are available:

    • /apis/snapshot.storage.k8s.io/v1/volumesnapshotcontents

      • DELETE: delete collection of VolumeSnapshotContent

      • GET: list objects of kind VolumeSnapshotContent

      • POST: create a VolumeSnapshotContent

    • /apis/snapshot.storage.k8s.io/v1/volumesnapshotcontents/{name}

      • GET: read the specified VolumeSnapshotContent

      • PATCH: partially update the specified VolumeSnapshotContent

      • PUT: replace the specified VolumeSnapshotContent

    • /apis/snapshot.storage.k8s.io/v1/volumesnapshotcontents/{name}/status

      • GET: read status of the specified VolumeSnapshotContent

      • PATCH: partially update status of the specified VolumeSnapshotContent

      • PUT: replace status of the specified VolumeSnapshotContent

    Table 1. Global query parameters
    ParameterTypeDescription

    pretty

    string

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

    HTTP method

    DELETE

    Description

    delete collection of VolumeSnapshotContent

    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. If the feature gate WatchBookmarks is not enabled in apiserver, 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 3. HTTP responses
    HTTP codeReponse body

    200 - OK

    Status_v2 meta/v1

    HTTP method

    GET

    Description

    list objects of kind VolumeSnapshotContent

    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. If the feature gate WatchBookmarks is not enabled in apiserver, 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 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

    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

    HTTP method

    POST

    Description

    create a VolumeSnapshotContent

    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 https://golang.org/pkg/unicode/#IsPrint.

    Table 8. HTTP responses
    HTTP codeReponse body

    Table 9. Global path parameters
    ParameterTypeDescription

    name

    string

    name of the VolumeSnapshotContent

    Table 10. Global query parameters
    ParameterTypeDescription

    pretty

    string

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

    HTTP method

    DELETE

    Description

    delete a VolumeSnapshotContent

    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

    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
    ParameterTypeDescription

    body

    DeleteOptions_v2 meta/v1

    Table 13. HTTP responses
    HTTP codeReponse body

    200 - OK

    HTTP method

    GET

    Description

    read the specified VolumeSnapshotContent

    Table 14. 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 15. HTTP responses
    HTTP codeReponse body

    200 - OK

    HTTP method

    PATCH

    Description

    partially update the specified VolumeSnapshotContent

    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 https://golang.org/pkg/unicode/#IsPrint.

    Table 17. Body parameters
    ParameterTypeDescription

    body

    Table 18. HTTP responses
    HTTP codeReponse body

    200 - OK

    VolumeSnapshotContent snapshot.storage.k8s.io/v1

    HTTP method

    PUT

    Description

    replace the specified VolumeSnapshotContent

    Table 20. Body parameters
    ParameterTypeDescription

    body

    Table 21. HTTP responses
    HTTP codeReponse body

    200 - OK

    VolumeSnapshotContent snapshot.storage.k8s.io/v1

    Table 22. Global path parameters
    ParameterTypeDescription

    name

    string

    name of the VolumeSnapshotContent

    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 VolumeSnapshotContent

    Table 24. Query parameters
    ParameterTypeDescription

    resourceVersion

    string

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

    Defaults to unset

    Table 25. HTTP responses
    HTTP codeReponse body

    200 - OK

    VolumeSnapshotContent snapshot.storage.k8s.io/v1

    HTTP method

    PATCH

    Description

    partially update status of the specified VolumeSnapshotContent

    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 .

    Table 27. Body parameters
    ParameterTypeDescription

    body

    Patch meta/v1

    Table 28. HTTP responses
    HTTP codeReponse body

    200 - OK

    HTTP method

    PUT

    Description

    replace status of the specified VolumeSnapshotContent

    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 https://golang.org/pkg/unicode/#IsPrint.

    Table 30. Body parameters
    ParameterTypeDescription

    body