KubeletConfig [machineconfiguration.openshift.io/v1]

    KubeletConfig describes a customized Kubelet configuration.

    Type

    Required

    • spec

    .spec

    Description

    KubeletConfigSpec defines the desired state of KubeletConfig

    Type

    object

    PropertyTypeDescription

    autoSizingReserved

    boolean

    Automatically set optimal system reserved

    kubeletConfig

    ``

    The fields of the kubelet configuration are defined in kubernetes upstream. Please refer to the types defined in the version/commit used by OpenShift of the upstream kubernetes. It’s important to note that, since the fields of the kubelet configuration are directly fetched from upstream the validation of those values is handled directly by the kubelet. Please refer to the upstream version of the relavent kubernetes for the valid values of these fields. Invalid values of the kubelet configuration fields may render cluster nodes unusable.

    logLevel

    integer

    logLevel defines the log level of the Kubelet

    machineConfigPoolSelector

    object

    A label selector is a label query over a set of resources. The result of matchLabels and matchExpressions are ANDed. An empty label selector matches all objects. A null label selector matches no objects.

    tlsSecurityProfile

    object

    tlsSecurityProfile specifies settings for TLS connections for ingresscontrollers. If unset, the default is based on the apiservers.config.openshift.io/cluster resource. Note that when using the Old, Intermediate, and Modern profile types, the effective profile configuration is subject to change between releases. For example, given a specification to use the Intermediate profile deployed on release X.Y.Z, an upgrade to release X.Y.Z+1 may cause a new profile configuration to be applied to the ingress controller, resulting in a rollout. Note that the minimum TLS version for ingress controllers is 1.1, and the maximum TLS version is 1.2. An implication of this restriction is that the Modern TLS profile type cannot be used because it requires TLS 1.3.

    .spec.machineConfigPoolSelector

    Description

    A label selector is a label query over a set of resources. The result of matchLabels and matchExpressions are ANDed. An empty label selector matches all objects. A null label selector matches no objects.

    Type

    object

    PropertyTypeDescription

    matchExpressions

    array

    matchExpressions is a list of label selector requirements. The requirements are ANDed.

    matchExpressions[]

    object

    A label selector requirement is a selector that contains values, a key, and an operator that relates the key and values.

    matchLabels

    object (string)

    matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is “key”, the operator is “In”, and the values array contains only “value”. The requirements are ANDed.

    .spec.machineConfigPoolSelector.matchExpressions

    Description

    matchExpressions is a list of label selector requirements. The requirements are ANDed.

    Type

    array

    .spec.machineConfigPoolSelector.matchExpressions[]

    Description

    A label selector requirement is a selector that contains values, a key, and an operator that relates the key and values.

    Type

    object

    Required

    • operator

    PropertyTypeDescription

    key

    string

    key is the label key that the selector applies to.

    operator

    string

    operator represents a key’s relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist.

    values

    array (string)

    values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch.

    .spec.tlsSecurityProfile

    Description

    tlsSecurityProfile specifies settings for TLS connections for ingresscontrollers. If unset, the default is based on the apiservers.config.openshift.io/cluster resource. Note that when using the Old, Intermediate, and Modern profile types, the effective profile configuration is subject to change between releases. For example, given a specification to use the Intermediate profile deployed on release X.Y.Z, an upgrade to release X.Y.Z+1 may cause a new profile configuration to be applied to the ingress controller, resulting in a rollout. Note that the minimum TLS version for ingress controllers is 1.1, and the maximum TLS version is 1.2. An implication of this restriction is that the Modern TLS profile type cannot be used because it requires TLS 1.3.

    Type

    object

    PropertyTypeDescription

    custom

    </p></td><td><p>custom is a user-defined TLS security profile. Be extremely careful using a custom profile as invalid configurations can be catastrophic. An example custom profile looks like this: ciphers: - ECDHE-ECDSA-CHACHA20-POLY1305 - ECDHE-RSA-CHACHA20-POLY1305 - ECDHE-RSA-AES128-GCM-SHA256 - ECDHE-ECDSA-AES128-GCM-SHA256 minTLSVersion: TLSv1.1</p></td></tr><tr><td><p><code>intermediate</code></p></td><td><p>

    intermediate is a TLS security profile based on: https://wiki.mozilla.org/Security/ServerSide_TLS#Intermediate_compatibility.28recommended.29 and looks like this (yaml): ciphers: - TLS_AES_128_GCM_SHA256 - TLS_AES_256_GCM_SHA384 - TLS_CHACHA20_POLY1305_SHA256 - ECDHE-ECDSA-AES128-GCM-SHA256 - ECDHE-RSA-AES128-GCM-SHA256 - ECDHE-ECDSA-AES256-GCM-SHA384 - ECDHE-RSA-AES256-GCM-SHA384 - ECDHE-ECDSA-CHACHA20-POLY1305 - ECDHE-RSA-CHACHA20-POLY1305 - DHE-RSA-AES128-GCM-SHA256 - DHE-RSA-AES256-GCM-SHA384 minTLSVersion: TLSv1.2

    modern

    </p></td><td><p>modern is a TLS security profile based on: <a href="https://wiki.mozilla.org/Security/Server_Side_TLS#Modern_compatibility" class="bare">https://wiki.mozilla.org/Security/Server_Side_TLS#Modern_compatibility</a> and looks like this (yaml): ciphers: - TLS_AES_128_GCM_SHA256 - TLS_AES_256_GCM_SHA384 - TLS_CHACHA20_POLY1305_SHA256 minTLSVersion: TLSv1.3 NOTE: Currently unsupported.</p></td></tr><tr><td><p><code>old</code></p></td><td><p>

    old is a TLS security profile based on: and looks like this (yaml): ciphers: - TLS_AES_128_GCM_SHA256 - TLS_AES_256_GCM_SHA384 - TLS_CHACHA20_POLY1305_SHA256 - ECDHE-ECDSA-AES128-GCM-SHA256 - ECDHE-RSA-AES128-GCM-SHA256 - ECDHE-ECDSA-AES256-GCM-SHA384 - ECDHE-RSA-AES256-GCM-SHA384 - ECDHE-ECDSA-CHACHA20-POLY1305 - ECDHE-RSA-CHACHA20-POLY1305 - DHE-RSA-AES128-GCM-SHA256 - DHE-RSA-AES256-GCM-SHA384 - DHE-RSA-CHACHA20-POLY1305 - ECDHE-ECDSA-AES128-SHA256 - ECDHE-RSA-AES128-SHA256 - ECDHE-ECDSA-AES128-SHA - ECDHE-RSA-AES128-SHA - ECDHE-ECDSA-AES256-SHA384 - ECDHE-RSA-AES256-SHA384 - ECDHE-ECDSA-AES256-SHA - ECDHE-RSA-AES256-SHA - DHE-RSA-AES128-SHA256 - DHE-RSA-AES256-SHA256 - AES128-GCM-SHA256 - AES256-GCM-SHA384 - AES128-SHA256 - AES256-SHA256 - AES128-SHA - AES256-SHA - DES-CBC3-SHA minTLSVersion: TLSv1.0

    type

    string

    type is one of Old, Intermediate, Modern or Custom. Custom provides the ability to specify individual TLS security profile parameters. Old, Intermediate and Modern are TLS security profiles based on: https://wiki.mozilla.org/Security/Server_Side_TLS#Recommended_configurations The profiles are intent based, so they may change over time as new ciphers are developed and existing ciphers are found to be insecure. Depending on precisely which ciphers are available to a process, the list may be reduced. Note that the Modern profile is currently not supported because it is not yet well adopted by common software libraries.

    .status

    Description

    KubeletConfigStatus defines the observed state of a KubeletConfig

    Type

    object

    PropertyTypeDescription

    conditions

    array

    conditions represents the latest available observations of current state.

    conditions[]

    object

    KubeletConfigCondition defines the state of the KubeletConfig

    observedGeneration

    integer

    observedGeneration represents the generation observed by the controller.

    .status.conditions

    Description

    conditions represents the latest available observations of current state.

    Type

    array

    .status.conditions[]

    Description

    KubeletConfigCondition defines the state of the KubeletConfig

    Type

    object

    PropertyTypeDescription

    ``

    lastTransitionTime is the time of the last update to the current status object.

    message

    string

    message provides additional information about the current condition. This is only to be consumed by humans.

    reason

    string

    reason is the reason for the condition’s last transition. Reasons are PascalCase

    status

    string

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

    type

    type specifies the state of the operator’s reconciliation functionality.

    API endpoints

    The following API endpoints are available:

    • /apis/machineconfiguration.openshift.io/v1/kubeletconfigs

      • DELETE: delete collection of KubeletConfig

      • GET: list objects of kind KubeletConfig

      • POST: create a KubeletConfig

    • /apis/machineconfiguration.openshift.io/v1/kubeletconfigs/{name}

      • GET: read the specified KubeletConfig

      • PATCH: partially update the specified KubeletConfig

      • PUT: replace the specified KubeletConfig

    • /apis/machineconfiguration.openshift.io/v1/kubeletconfigs/{name}/status

      • GET: read status of the specified KubeletConfig

      • PATCH: partially update status of the specified KubeletConfig

    Table 1. Global query parameters
    ParameterTypeDescription

    pretty

    string

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

    HTTP method

    DELETE

    Description

    delete collection of KubeletConfig

    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 KubeletConfig

    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 KubeletConfig

    Table 7. Body parameters
    ParameterTypeDescription

    KubeletConfig machineconfiguration.openshift.io/v1

    Table 8. HTTP responses
    HTTP codeReponse body

    200 - OK

    Table 9. Global path parameters
    ParameterTypeDescription

    name

    string

    name of the KubeletConfig

    Table 10. Global query parameters
    ParameterTypeDescription

    pretty

    string

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

    HTTP method

    DELETE

    Description

    delete a KubeletConfig

    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 KubeletConfig

    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 KubeletConfig

    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

    HTTP method

    PUT

    Description

    replace the specified KubeletConfig

    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.

    Table 20. Body parameters
    ParameterTypeDescription

    body

    Table 21. HTTP responses
    HTTP codeReponse body

    200 - OK

    KubeletConfig machineconfiguration.openshift.io/v1

    Table 22. Global path parameters
    ParameterTypeDescription

    name

    string

    name of the KubeletConfig

    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 KubeletConfig

    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

    KubeletConfig machineconfiguration.openshift.io/v1

    HTTP method

    PATCH

    Description

    partially update status of the specified KubeletConfig

    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 KubeletConfig

    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 31. HTTP responses
    HTTP codeReponse body

    200 - OK