- MachineHealthCheck [machine.openshift.io/v1beta1]
- Specification
- API endpoints
- /apis/machine.openshift.io/v1beta1/machinehealthchecks
- /apis/machine.openshift.io/v1beta1/namespaces/{namespace}/machinehealthchecks
- /apis/machine.openshift.io/v1beta1/namespaces/{namespace}/machinehealthchecks/{name}
- /apis/machine.openshift.io/v1beta1/namespaces/{namespace}/machinehealthchecks/{name}/status
MachineHealthCheck [machine.openshift.io/v1beta1]
Description
MachineHealthCheck is the Schema for the machinehealthchecks API
Type
object
Specification
Property | Type | Description |
---|---|---|
|
| APIVersion defines the versioned schema of this representation of an object. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources |
|
| 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 |
| Standard object’s metadata. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata | |
|
| Specification of machine health check policy |
|
| Most recently observed status of MachineHealthCheck resource |
.spec
Description
Specification of machine health check policy
Type
object
Required
selector
unhealthyConditions
Property | Type | Description |
---|---|---|
|
| 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. |
|
| Machines older than this duration without a node will be considered to have failed and will be remediated. To prevent Machines without Nodes from being removed, disable startup checks by setting this value explicitly to “0”. 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”. |
|
| RemediationTemplate is a reference to a remediation template provided by an infrastructure provider. This field is completely optional, when filled, the MachineHealthCheck controller creates a new object from the template referenced and hands off remediation of the machine to a controller that lives outside of Machine API Operator. |
|
| Label selector to match machines whose health will be exercised. Note: An empty selector will match all machines. |
|
| 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. |
|
| 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.remediationTemplate
Description
RemediationTemplate is a reference to a remediation template provided by an infrastructure provider. This field is completely optional, when filled, the MachineHealthCheck controller creates a new object from the template referenced and hands off remediation of the machine to a controller that lives outside of Machine API Operator.
Type
object
Property | Type | Description |
---|---|---|
|
| API version of the referent. |
|
| 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 of the referent. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds |
|
| Name of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names |
|
| Namespace of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/namespaces/ |
|
| Specific resourceVersion to which this reference is made, if any. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#concurrency-control-and-consistency |
|
| UID of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#uids |
.spec.selector
Description
Label selector to match machines whose health will be exercised. Note: An empty selector will match all machines.
Type
object
Property | Type | Description |
---|---|---|
|
| matchExpressions is a list of label selector requirements. The requirements are ANDed. |
|
| A label selector requirement is a selector that contains values, a key, and an operator that relates the key and values. |
|
| 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
Property | Type | Description |
---|---|---|
|
| key is the label key that the selector applies to. |
|
| operator represents a key’s relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist. |
|
| 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
Property | Type | Description |
---|---|---|
|
| |
|
| 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”. |
|
|
.status
Description
Most recently observed status of MachineHealthCheck resource
Type
object
Required
currentHealthy
expectedMachines
Property | Type | Description |
---|---|---|
|
| Conditions defines the current state of the MachineHealthCheck |
|
| Condition defines an observation of a Machine API resource operational state. |
|
| total number of machines counted by this machine health check |
|
| total number of machines counted by this machine health check |
|
| 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
Property | Type | Description |
---|---|---|
|
| 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. |
|
| A human readable message indicating details about the transition. This field may be empty. |
|
| 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 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 of the condition, one of True, False, Unknown. |
|
| 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 MachineHealthCheckGET
: list objects of kind MachineHealthCheckPOST
: create a MachineHealthCheck
/apis/machine.openshift.io/v1beta1/namespaces/{namespace}/machinehealthchecks/{name}
DELETE
: delete a MachineHealthCheckGET
: read the specified MachineHealthCheckPATCH
: partially update the specified MachineHealthCheckPUT
: replace the specified MachineHealthCheck
/apis/machine.openshift.io/v1beta1/namespaces/{namespace}/machinehealthchecks/{name}/status
GET
: read status of the specified MachineHealthCheckPATCH
: partially update status of the specified MachineHealthCheckPUT
: replace status of the specified MachineHealthCheck
/apis/machine.openshift.io/v1beta1/machinehealthchecks
Parameter | Type | Description |
---|---|---|
|
| allowWatchBookmarks requests watch events with type “BOOKMARK”. Servers that do not implement bookmarks may ignore this flag and bookmarks are sent at the server’s discretion. Clients should not assume bookmarks are returned at any specific interval, nor may they assume the server will send any BOOKMARK event during a session. If this is not a watch, this field is ignored. |
|
| The continue option should be set when retrieving more results from the server. Since this value is server defined, clients may only use the continue value from a previous query result with identical query parameters (except for the value of continue) and the server may reject a continue value it does not recognize. If the specified continue value is no longer valid whether due to expiration (generally five to fifteen minutes) or a configuration change on the server, the server will respond with a 410 ResourceExpired error together with a continue token. If the client needs a consistent list, it must restart their list without the continue field. Otherwise, the client may send another list request with the token received with the 410 error, the server will respond with a list starting from the next key, but from the latest snapshot, which is inconsistent from the previous list results - objects that are created, modified, or deleted after the first list request will be included in the response, as long as their keys are after the “next key”. This field is not supported when watch is true. Clients may start a watch from the last resourceVersion value returned by the server and not miss any modifications. |
|
| A selector to restrict the list of returned objects by their fields. Defaults to everything. |
|
| A selector to restrict the list of returned objects by their labels. Defaults to everything. |
|
| limit is a maximum number of responses to return for a list call. If more items exist, the server will set the The server guarantees that the objects returned when using continue will be identical to issuing a single list call without a limit - that is, no objects created, modified, or deleted after the first request is issued will be included in any subsequent continued requests. This is sometimes referred to as a consistent snapshot, and ensures that a client that is using limit to receive smaller chunks of a very large result can ensure they see all possible objects. If objects are updated during a chunked list the version of the object that was present at the time the first list result was calculated is returned. |
|
| If ‘true’, then the output is pretty printed. |
|
| resourceVersion sets a constraint on what resource versions a request may be served from. See https://kubernetes.io/docs/reference/using-api/api-concepts/#resource-versions for details. Defaults to unset |
|
| resourceVersionMatch determines how resourceVersion is applied to list calls. It is highly recommended that resourceVersionMatch be set for list calls where resourceVersion is set See https://kubernetes.io/docs/reference/using-api/api-concepts/#resource-versions for details. Defaults to unset |
|
| Timeout for the list/watch call. This limits the duration of the call, regardless of any activity or inactivity. |
|
| Watch for changes to the described resources and return them as a stream of add, update, and remove notifications. Specify resourceVersion. |
HTTP method
GET
Description
list objects of kind MachineHealthCheck
HTTP code | Reponse body |
---|---|
200 - OK | MachineHealthCheckList schema |
401 - Unauthorized | Empty |
/apis/machine.openshift.io/v1beta1/namespaces/{namespace}/machinehealthchecks
Parameter | Type | Description |
---|---|---|
|
| object name and auth scope, such as for teams and projects |
Parameter | Type | Description |
---|---|---|
|
| If ‘true’, then the output is pretty printed. |
HTTP method
DELETE
Description
delete collection of MachineHealthCheck
Parameter | Type | Description |
---|---|---|
|
| allowWatchBookmarks requests watch events with type “BOOKMARK”. Servers that do not implement bookmarks may ignore this flag and bookmarks are sent at the server’s discretion. Clients should not assume bookmarks are returned at any specific interval, nor may they assume the server will send any BOOKMARK event during a session. If this is not a watch, this field is ignored. |
|
| The continue option should be set when retrieving more results from the server. Since this value is server defined, clients may only use the continue value from a previous query result with identical query parameters (except for the value of continue) and the server may reject a continue value it does not recognize. If the specified continue value is no longer valid whether due to expiration (generally five to fifteen minutes) or a configuration change on the server, the server will respond with a 410 ResourceExpired error together with a continue token. If the client needs a consistent list, it must restart their list without the continue field. Otherwise, the client may send another list request with the token received with the 410 error, the server will respond with a list starting from the next key, but from the latest snapshot, which is inconsistent from the previous list results - objects that are created, modified, or deleted after the first list request will be included in the response, as long as their keys are after the “next key”. This field is not supported when watch is true. Clients may start a watch from the last resourceVersion value returned by the server and not miss any modifications. |
|
| A selector to restrict the list of returned objects by their fields. Defaults to everything. |
|
| A selector to restrict the list of returned objects by their labels. Defaults to everything. |
|
| limit is a maximum number of responses to return for a list call. If more items exist, the server will set the The server guarantees that the objects returned when using continue will be identical to issuing a single list call without a limit - that is, no objects created, modified, or deleted after the first request is issued will be included in any subsequent continued requests. This is sometimes referred to as a consistent snapshot, and ensures that a client that is using limit to receive smaller chunks of a very large result can ensure they see all possible objects. If objects are updated during a chunked list the version of the object that was present at the time the first list result was calculated is returned. |
|
| resourceVersion sets a constraint on what resource versions a request may be served from. See https://kubernetes.io/docs/reference/using-api/api-concepts/#resource-versions for details. Defaults to unset |
|
| resourceVersionMatch determines how resourceVersion is applied to list calls. It is highly recommended that resourceVersionMatch be set for list calls where resourceVersion is set See https://kubernetes.io/docs/reference/using-api/api-concepts/#resource-versions for details. Defaults to unset |
|
| Timeout for the list/watch call. This limits the duration of the call, regardless of any activity or inactivity. |
|
| Watch for changes to the described resources and return them as a stream of add, update, and remove notifications. Specify resourceVersion. |
HTTP code | Reponse body |
---|---|
200 - OK | Status_v2 schema |
401 - Unauthorized | Empty |
HTTP method
GET
Description
list objects of kind MachineHealthCheck
Parameter | Type | Description |
---|---|---|
|
| allowWatchBookmarks requests watch events with type “BOOKMARK”. Servers that do not implement bookmarks may ignore this flag and bookmarks are sent at the server’s discretion. Clients should not assume bookmarks are returned at any specific interval, nor may they assume the server will send any BOOKMARK event during a session. If this is not a watch, this field is ignored. |
|
| The continue option should be set when retrieving more results from the server. Since this value is server defined, clients may only use the continue value from a previous query result with identical query parameters (except for the value of continue) and the server may reject a continue value it does not recognize. If the specified continue value is no longer valid whether due to expiration (generally five to fifteen minutes) or a configuration change on the server, the server will respond with a 410 ResourceExpired error together with a continue token. If the client needs a consistent list, it must restart their list without the continue field. Otherwise, the client may send another list request with the token received with the 410 error, the server will respond with a list starting from the next key, but from the latest snapshot, which is inconsistent from the previous list results - objects that are created, modified, or deleted after the first list request will be included in the response, as long as their keys are after the “next key”. This field is not supported when watch is true. Clients may start a watch from the last resourceVersion value returned by the server and not miss any modifications. |
|
| A selector to restrict the list of returned objects by their fields. Defaults to everything. |
|
| A selector to restrict the list of returned objects by their labels. Defaults to everything. |
|
| limit is a maximum number of responses to return for a list call. If more items exist, the server will set the The server guarantees that the objects returned when using continue will be identical to issuing a single list call without a limit - that is, no objects created, modified, or deleted after the first request is issued will be included in any subsequent continued requests. This is sometimes referred to as a consistent snapshot, and ensures that a client that is using limit to receive smaller chunks of a very large result can ensure they see all possible objects. If objects are updated during a chunked list the version of the object that was present at the time the first list result was calculated is returned. |
|
| resourceVersion sets a constraint on what resource versions a request may be served from. See https://kubernetes.io/docs/reference/using-api/api-concepts/#resource-versions for details. Defaults to unset |
|
| resourceVersionMatch determines how resourceVersion is applied to list calls. It is highly recommended that resourceVersionMatch be set for list calls where resourceVersion is set See https://kubernetes.io/docs/reference/using-api/api-concepts/#resource-versions for details. Defaults to unset |
|
| Timeout for the list/watch call. This limits the duration of the call, regardless of any activity or inactivity. |
|
| Watch for changes to the described resources and return them as a stream of add, update, and remove notifications. Specify resourceVersion. |
HTTP code | Reponse body |
---|---|
200 - OK | MachineHealthCheckList schema |
401 - Unauthorized | Empty |
HTTP method
POST
Description
create a MachineHealthCheck
Parameter | Type | Description |
---|---|---|
|
| When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed |
|
| fieldManager is a name associated with the actor or entity that is making these changes. The value must be less than or 128 characters long, and only contain printable characters, as defined by https://golang.org/pkg/unicode/#IsPrint. |
Parameter | Type | Description |
---|---|---|
| MachineHealthCheck schema |
HTTP code | Reponse body |
---|---|
200 - OK | MachineHealthCheck schema |
201 - Created | MachineHealthCheck schema |
202 - Accepted | MachineHealthCheck schema |
401 - Unauthorized | Empty |
/apis/machine.openshift.io/v1beta1/namespaces/{namespace}/machinehealthchecks/{name}
Parameter | Type | Description |
---|---|---|
|
| name of the MachineHealthCheck |
|
| object name and auth scope, such as for teams and projects |
Parameter | Type | Description |
---|---|---|
|
| If ‘true’, then the output is pretty printed. |
HTTP method
DELETE
Description
delete a MachineHealthCheck
Parameter | Type | Description |
---|---|---|
|
| When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed |
|
| The duration in seconds before the object should be deleted. Value must be non-negative integer. The value zero indicates delete immediately. If this value is nil, the default grace period for the specified type will be used. Defaults to a per object value if not specified. zero means delete immediately. |
|
| Deprecated: please use the PropagationPolicy, this field will be deprecated in 1.7. Should the dependent objects be orphaned. If true/false, the “orphan” finalizer will be added to/removed from the object’s finalizers list. Either this field or PropagationPolicy may be set, but not both. |
|
| Whether and how garbage collection will be performed. Either this field or OrphanDependents may be set, but not both. The default policy is decided by the existing finalizer set in the metadata.finalizers and the resource-specific default policy. Acceptable values are: ‘Orphan’ - orphan the dependents; ‘Background’ - allow the garbage collector to delete the dependents in the background; ‘Foreground’ - a cascading policy that deletes all dependents in the foreground. |
Parameter | Type | Description |
---|---|---|
| DeleteOptions_v2 schema |
HTTP code | Reponse body |
---|---|
200 - OK | Status_v2 schema |
202 - Accepted | Status_v2 schema |
401 - Unauthorized | Empty |
HTTP method
GET
Description
read the specified MachineHealthCheck
Parameter | Type | Description |
---|---|---|
|
| 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 |
HTTP code | Reponse body |
---|---|
200 - OK | MachineHealthCheck schema |
401 - Unauthorized | Empty |
HTTP method
PATCH
Description
partially update the specified MachineHealthCheck
Parameter | Type | Description |
---|---|---|
|
| When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed |
|
| fieldManager is a name associated with the actor or entity that is making these changes. The value must be less than or 128 characters long, and only contain printable characters, as defined by https://golang.org/pkg/unicode/#IsPrint. |
Parameter | Type | Description |
---|---|---|
| Patch schema |
HTTP code | Reponse body |
---|---|
200 - OK | MachineHealthCheck schema |
401 - Unauthorized | Empty |
HTTP method
PUT
Description
replace the specified MachineHealthCheck
Parameter | Type | Description |
---|---|---|
|
| When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed |
|
| fieldManager is a name associated with the actor or entity that is making these changes. The value must be less than or 128 characters long, and only contain printable characters, as defined by https://golang.org/pkg/unicode/#IsPrint. |
Parameter | Type | Description |
---|---|---|
| MachineHealthCheck schema |
HTTP code | Reponse body |
---|---|
200 - OK | MachineHealthCheck schema |
201 - Created | MachineHealthCheck schema |
401 - Unauthorized | Empty |
/apis/machine.openshift.io/v1beta1/namespaces/{namespace}/machinehealthchecks/{name}/status
Parameter | Type | Description |
---|---|---|
|
| name of the MachineHealthCheck |
|
| object name and auth scope, such as for teams and projects |
Parameter | Type | Description |
---|---|---|
|
| If ‘true’, then the output is pretty printed. |
HTTP method
GET
Description
read status of the specified MachineHealthCheck
Parameter | Type | Description |
---|---|---|
|
| 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 |
HTTP code | Reponse body |
---|---|
200 - OK | MachineHealthCheck schema |
401 - Unauthorized | Empty |
HTTP method
PATCH
Description
partially update status of the specified MachineHealthCheck
Parameter | Type | Description |
---|---|---|
|
| When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed |
|
| fieldManager is a name associated with the actor or entity that is making these changes. The value must be less than or 128 characters long, and only contain printable characters, as defined by https://golang.org/pkg/unicode/#IsPrint. |
Parameter | Type | Description |
---|---|---|
| Patch schema |
HTTP code | Reponse body |
---|---|
200 - OK | MachineHealthCheck schema |
401 - Unauthorized | Empty |
HTTP method
PUT
Description
replace status of the specified MachineHealthCheck
Parameter | Type | Description |
---|---|---|
|
| When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed |
|
| fieldManager is a name associated with the actor or entity that is making these changes. The value must be less than or 128 characters long, and only contain printable characters, as defined by https://golang.org/pkg/unicode/#IsPrint. |
Parameter | Type | Description |
---|---|---|
| MachineHealthCheck schema |
HTTP code | Reponse body |
---|---|
200 - OK | MachineHealthCheck schema |
201 - Created | MachineHealthCheck schema |
401 - Unauthorized | Empty |