MachineHealthCheck [machine.openshift.io/v1beta1]

Description

MachineHealthCheck is the Schema for the machinehealthchecks API

Type

object

Specification

PropertyTypeDescription

apiVersion

string

APIVersion defines the versioned schema of this representation of an object. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources

kind

string

Kind is a string value representing the REST resource this object represents. Servers may infer this from the endpoint the client submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds

metadata

ObjectMeta_v2 meta/v1

Standard object’s metadata. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata

spec

object

Specification of machine health check policy

status

object

Most recently observed status of MachineHealthCheck resource

.spec

Description

Specification of machine health check policy

Type

object

Required

  • selector

  • unhealthyConditions

PropertyTypeDescription

maxUnhealthy

integer-or-string

Any farther remediation is only allowed if at most “MaxUnhealthy” machines selected by “selector” are not healthy. Expects either a postive integer value or a percentage value. Percentage values must be positive whole numbers and are capped at 100%. Both 0 and 0% are valid and will block all remediation.

nodeStartupTimeout

string

Machines older than this duration without a node will be considered to have failed and will be remediated. Expects an unsigned duration string of decimal numbers each with optional fraction and a unit suffix, eg “300ms”, “1.5h” or “2h45m”. Valid time units are “ns”, “us” (or “µs”), “ms”, “s”, “m”, “h”.

selector

object

Label selector to match machines whose health will be exercised. Note: An empty selector will match all machines.

unhealthyConditions

array

UnhealthyConditions contains a list of the conditions that determine whether a node is considered unhealthy. The conditions are combined in a logical OR, i.e. if any of the conditions is met, the node is unhealthy.

unhealthyConditions[]

object

UnhealthyCondition represents a Node condition type and value with a timeout specified as a duration. When the named condition has been in the given status for at least the timeout value, a node is considered unhealthy.

.spec.selector

Description

Label selector to match machines whose health will be exercised. Note: An empty selector will match all machines.

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.selector.matchExpressions

Description

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

Type

array

.spec.selector.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

  • key

  • 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.unhealthyConditions

Description

UnhealthyConditions contains a list of the conditions that determine whether a node is considered unhealthy. The conditions are combined in a logical OR, i.e. if any of the conditions is met, the node is unhealthy.

Type

array

.spec.unhealthyConditions[]

Description

UnhealthyCondition represents a Node condition type and value with a timeout specified as a duration. When the named condition has been in the given status for at least the timeout value, a node is considered unhealthy.

Type

object

Required

  • status

  • timeout

  • type

PropertyTypeDescription

status

string

timeout

string

Expects an unsigned duration string of decimal numbers each with optional fraction and a unit suffix, eg “300ms”, “1.5h” or “2h45m”. Valid time units are “ns”, “us” (or “µs”), “ms”, “s”, “m”, “h”.

type

string

.status

Description

Most recently observed status of MachineHealthCheck resource

Type

object

Required

  • currentHealthy

  • expectedMachines

PropertyTypeDescription

conditions

array

Conditions defines the current state of the MachineHealthCheck

conditions[]

object

Condition defines an observation of a Machine API resource operational state.

currentHealthy

integer

total number of machines counted by this machine health check

expectedMachines

integer

total number of machines counted by this machine health check

remediationsAllowed

integer

RemediationsAllowed is the number of further remediations allowed by this machine health check before maxUnhealthy short circuiting will be applied

.status.conditions

Description

Conditions defines the current state of the MachineHealthCheck

Type

array

.status.conditions[]

Description

Condition defines an observation of a Machine API resource operational state.

Type

object

Required

  • status

  • type

PropertyTypeDescription

lastTransitionTime

string

Last time the condition transitioned from one status to another. This should be when the underlying condition changed. If that is not known, then using the time when the API field changed is acceptable.

message

string

A human readable message indicating details about the transition. This field may be empty.

reason

string

The reason for the condition’s last transition in CamelCase. The specific API may choose whether or not this field is considered a guaranteed API. This field may not be empty.

severity

string

Severity provides an explicit classification of Reason code, so the users or machines can immediately understand the current situation and act accordingly. The Severity field MUST be set only when Status=False.

status

string

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

type

string

Type of condition in CamelCase or in foo.example.com/CamelCase. Many .condition.type values are consistent across resources like Available, but because arbitrary conditions can be useful (see .node.status.conditions), the ability to deconflict is important.

API endpoints

The following API endpoints are available:

  • /apis/machine.openshift.io/v1beta1/machinehealthchecks

    • GET: list objects of kind MachineHealthCheck
  • /apis/machine.openshift.io/v1beta1/namespaces/{namespace}/machinehealthchecks

    • DELETE: delete collection of MachineHealthCheck

    • GET: list objects of kind MachineHealthCheck

    • POST: create a MachineHealthCheck

  • /apis/machine.openshift.io/v1beta1/namespaces/{namespace}/machinehealthchecks/{name}

    • DELETE: delete a MachineHealthCheck

    • GET: read the specified MachineHealthCheck

    • PATCH: partially update the specified MachineHealthCheck

    • PUT: replace the specified MachineHealthCheck

  • /apis/machine.openshift.io/v1beta1/namespaces/{namespace}/machinehealthchecks/{name}/status

    • GET: read status of the specified MachineHealthCheck

    • PATCH: partially update status of the specified MachineHealthCheck

    • PUT: replace status of the specified MachineHealthCheck

/apis/machine.openshift.io/v1beta1/machinehealthchecks

Table 1. Global guery 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.

pretty

string

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

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 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.

HTTP method

GET

Description

list objects of kind MachineHealthCheck

Table 2. HTTP responses
HTTP codeReponse body

200 - OK

MachineHealthCheckList machine.openshift.io/v1beta1

401 - Unauthorized

Empty

/apis/machine.openshift.io/v1beta1/namespaces/{namespace}/machinehealthchecks

Table 3. Global path parameters
ParameterTypeDescription

namespace

string

object name and auth scope, such as for teams and projects

Table 4. Global guery parameters
ParameterTypeDescription

pretty

string

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

HTTP method

DELETE

Description

delete collection of MachineHealthCheck

Table 5. 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 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 6. HTTP responses
HTTP codeReponse body

200 - OK

Status_v2 meta/v1

401 - Unauthorized

Empty

HTTP method

GET

Description

list objects of kind MachineHealthCheck

Table 7. 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 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 8. HTTP responses
HTTP codeReponse body

200 - OK

MachineHealthCheckList machine.openshift.io/v1beta1

401 - Unauthorized

Empty

HTTP method

POST

Description

create a MachineHealthCheck

Table 9. 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 10. Body parameters
ParameterTypeDescription

body

MachineHealthCheck machine.openshift.io/v1beta1

Table 11. HTTP responses
HTTP codeReponse body

200 - OK

MachineHealthCheck machine.openshift.io/v1beta1

201 - Created

MachineHealthCheck machine.openshift.io/v1beta1

202 - Accepted

MachineHealthCheck machine.openshift.io/v1beta1

401 - Unauthorized

Empty

/apis/machine.openshift.io/v1beta1/namespaces/{namespace}/machinehealthchecks/{name}

Table 12. Global path parameters
ParameterTypeDescription

name

string

name of the MachineHealthCheck

namespace

string

object name and auth scope, such as for teams and projects

Table 13. Global guery parameters
ParameterTypeDescription

pretty

string

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

HTTP method

DELETE

Description

delete a MachineHealthCheck

Table 14. 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 15. Body parameters
ParameterTypeDescription

body

DeleteOptions_v2 meta/v1

Table 16. HTTP responses
HTTP codeReponse body

200 - OK

Status_v2 meta/v1

202 - Accepted

Status_v2 meta/v1

401 - Unauthorized

Empty

HTTP method

GET

Description

read the specified MachineHealthCheck

Table 17. 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 18. HTTP responses
HTTP codeReponse body

200 - OK

MachineHealthCheck machine.openshift.io/v1beta1

401 - Unauthorized

Empty

HTTP method

PATCH

Description

partially update the specified MachineHealthCheck

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

Patch meta/v1

Table 21. HTTP responses
HTTP codeReponse body

200 - OK

MachineHealthCheck machine.openshift.io/v1beta1

401 - Unauthorized

Empty

HTTP method

PUT

Description

replace the specified MachineHealthCheck

Table 22. 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 23. Body parameters
ParameterTypeDescription

body

MachineHealthCheck machine.openshift.io/v1beta1

Table 24. HTTP responses
HTTP codeReponse body

200 - OK

MachineHealthCheck machine.openshift.io/v1beta1

201 - Created

MachineHealthCheck machine.openshift.io/v1beta1

401 - Unauthorized

Empty

/apis/machine.openshift.io/v1beta1/namespaces/{namespace}/machinehealthchecks/{name}/status

Table 25. Global path parameters
ParameterTypeDescription

name

string

name of the MachineHealthCheck

namespace

string

object name and auth scope, such as for teams and projects

Table 26. Global guery parameters
ParameterTypeDescription

pretty

string

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

HTTP method

GET

Description

read status of the specified MachineHealthCheck

Table 27. 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 28. HTTP responses
HTTP codeReponse body

200 - OK

MachineHealthCheck machine.openshift.io/v1beta1

401 - Unauthorized

Empty

HTTP method

PATCH

Description

partially update status of the specified MachineHealthCheck

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

Patch meta/v1

Table 31. HTTP responses
HTTP codeReponse body

200 - OK

MachineHealthCheck machine.openshift.io/v1beta1

401 - Unauthorized

Empty

HTTP method

PUT

Description

replace status of the specified MachineHealthCheck

Table 32. 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 33. Body parameters
ParameterTypeDescription

body

MachineHealthCheck machine.openshift.io/v1beta1

Table 34. HTTP responses
HTTP codeReponse body

200 - OK

MachineHealthCheck machine.openshift.io/v1beta1

201 - Created

MachineHealthCheck machine.openshift.io/v1beta1

401 - Unauthorized

Empty