Job

Job represents the configuration of a single job.

apiVersion: batch/v1

import "k8s.io/api/batch/v1"

Job

Job represents the configuration of a single job.

JobSpec

JobSpec describes how the job execution will look like.

Replicas

Lifecycle

  • completions (int32)

    Specifies the desired number of successfully finished pods the job should be run with. Setting to null means that the success of any pod signals the success of all pods, and allows parallelism to have any positive value. Setting to 1 means that parallelism is limited to 1 and the success of that pod signals the success of the job. More info: https://kubernetes.io/docs/concepts/workloads/controllers/jobs-run-to-completion/

  • completionMode (string)

    completionMode specifies how Pod completions are tracked. It can be NonIndexed (default) or Indexed.

    NonIndexed means that the Job is considered complete when there have been .spec.completions successfully completed Pods. Each Pod completion is homologous to each other.

    Indexed means that the Pods of a Job get an associated completion index from 0 to (.spec.completions - 1), available in the annotation batch.kubernetes.io/job-completion-index. The Job is considered complete when there is one successfully completed Pod for each index. When value is Indexed, .spec.completions must be specified and .spec.parallelism must be less than or equal to 10^5. In addition, The Pod name takes the form $(job-name)-$(index)-$(random-string), the Pod hostname takes the form $(job-name)-$(index).

    More completion modes can be added in the future. If the Job controller observes a mode that it doesn’t recognize, which is possible during upgrades due to version skew, the controller skips updates for the Job.

  • backoffLimit (int32)

    Specifies the number of retries before marking this job failed. Defaults to 6

  • activeDeadlineSeconds (int64)

    Specifies the duration in seconds relative to the startTime that the job may be continuously active before the system tries to terminate it; value must be positive integer. If a Job is suspended (at creation or through an update), this timer will effectively be stopped and reset when the Job is resumed again.

  • ttlSecondsAfterFinished (int32)

    ttlSecondsAfterFinished limits the lifetime of a Job that has finished execution (either Complete or Failed). If this field is set, ttlSecondsAfterFinished after the Job finishes, it is eligible to be automatically deleted. When the Job is being deleted, its lifecycle guarantees (e.g. finalizers) will be honored. If this field is unset, the Job won’t be automatically deleted. If this field is set to zero, the Job becomes eligible to be deleted immediately after it finishes.

  • suspend (boolean)

    suspend specifies whether the Job controller should create Pods or not. If a Job is created with suspend set to true, no Pods are created by the Job controller. If a Job is suspended after creation (i.e. the flag goes from false to true), the Job controller will delete all active Pods associated with this Job. Users must design their workload to gracefully handle this. Suspending a Job will reset the StartTime field of the Job, effectively resetting the ActiveDeadlineSeconds timer too. Defaults to false.

Selector

Beta level

  • podFailurePolicy (PodFailurePolicy)

    Specifies the policy of handling failed pods. In particular, it allows to specify the set of actions and conditions which need to be satisfied to take the associated action. If empty, the default behaviour applies - the counter of failed pods, represented by the jobs’s .status.failed field, is incremented and it is checked against the backoffLimit. This field cannot be used in combination with restartPolicy=OnFailure.

    PodFailurePolicy describes how failed pods influence the backoffLimit.

    • podFailurePolicy.rules ([]PodFailurePolicyRule), required

      Atomic: will be replaced during a merge

      A list of pod failure policy rules. The rules are evaluated in order. Once a rule matches a Pod failure, the remaining of the rules are ignored. When no rule matches the Pod failure, the default handling applies - the counter of pod failures is incremented and it is checked against the backoffLimit. At most 20 elements are allowed.

      PodFailurePolicyRule describes how a pod failure is handled when the requirements are met. One of onExitCodes and onPodConditions, but not both, can be used in each rule.

      • podFailurePolicy.rules.action (string), required

        Specifies the action taken on a pod failure when the requirements are satisfied. Possible values are:

        • FailJob: indicates that the pod’s job is marked as Failed and all running pods are terminated.
        • FailIndex: indicates that the pod’s index is marked as Failed and will not be restarted. This value is beta-level. It can be used when the JobBackoffLimitPerIndex feature gate is enabled (enabled by default).
        • Ignore: indicates that the counter towards the .backoffLimit is not incremented and a replacement pod is created.
        • Count: indicates that the pod is handled in the default way - the counter towards the .backoffLimit is incremented. Additional values are considered to be added in the future. Clients should react to an unknown action by skipping the rule.

      • podFailurePolicy.rules.onExitCodes (PodFailurePolicyOnExitCodesRequirement)

        Represents the requirement on the container exit codes.

        PodFailurePolicyOnExitCodesRequirement describes the requirement for handling a failed pod based on its container exit codes. In particular, it lookups the .state.terminated.exitCode for each app container and init container status, represented by the .status.containerStatuses and .status.initContainerStatuses fields in the Pod status, respectively. Containers completed with success (exit code 0) are excluded from the requirement check.

        • podFailurePolicy.rules.onExitCodes.operator (string), required

          Represents the relationship between the container exit code(s) and the specified values. Containers completed with success (exit code 0) are excluded from the requirement check. Possible values are:

          • In: the requirement is satisfied if at least one container exit code (might be multiple if there are multiple containers not restricted by the ‘containerName’ field) is in the set of specified values.
          • NotIn: the requirement is satisfied if at least one container exit code (might be multiple if there are multiple containers not restricted by the ‘containerName’ field) is not in the set of specified values. Additional values are considered to be added in the future. Clients should react to an unknown operator by assuming the requirement is not satisfied.

        • podFailurePolicy.rules.onExitCodes.values ([]int32), required

          Set: unique values will be kept during a merge

          Specifies the set of values. Each returned container exit code (might be multiple in case of multiple containers) is checked against this set of values with respect to the operator. The list of values must be ordered and must not contain duplicates. Value ‘0’ cannot be used for the In operator. At least one element is required. At most 255 elements are allowed.

        • podFailurePolicy.rules.onExitCodes.containerName (string)

          Restricts the check for exit codes to the container with the specified name. When null, the rule applies to all containers. When specified, it should match one the container or initContainer names in the pod template.

      • podFailurePolicy.rules.onPodConditions ([]PodFailurePolicyOnPodConditionsPattern)

        Atomic: will be replaced during a merge

        Represents the requirement on the pod conditions. The requirement is represented as a list of pod condition patterns. The requirement is satisfied if at least one pattern matches an actual pod condition. At most 20 elements are allowed.

        PodFailurePolicyOnPodConditionsPattern describes a pattern for matching an actual pod condition type.

        • podFailurePolicy.rules.onPodConditions.status (string), required

          Specifies the required Pod condition status. To match a pod condition it is required that the specified status equals the pod condition status. Defaults to True.

        • podFailurePolicy.rules.onPodConditions.type (string), required

          Specifies the required Pod condition type. To match a pod condition it is required that specified type equals the pod condition type.

  • successPolicy (SuccessPolicy)

    successPolicy specifies the policy when the Job can be declared as succeeded. If empty, the default behavior applies - the Job is declared as succeeded only when the number of succeeded pods equals to the completions. When the field is specified, it must be immutable and works only for the Indexed Jobs. Once the Job meets the SuccessPolicy, the lingering pods are terminated.

    This field is beta-level. To use this field, you must enable the JobSuccessPolicy feature gate (enabled by default).

    SuccessPolicy describes when a Job can be declared as succeeded based on the success of some indexes.

    • successPolicy.rules ([]SuccessPolicyRule), required

      Atomic: will be replaced during a merge

      rules represents the list of alternative rules for the declaring the Jobs as successful before .status.succeeded >= .spec.completions. Once any of the rules are met, the “SucceededCriteriaMet” condition is added, and the lingering pods are removed. The terminal state for such a Job has the “Complete” condition. Additionally, these rules are evaluated in order; Once the Job meets one of the rules, other rules are ignored. At most 20 elements are allowed.

      SuccessPolicyRule describes rule for declaring a Job as succeeded. Each rule must have at least one of the “succeededIndexes” or “succeededCount” specified.

      • successPolicy.rules.succeededCount (int32)

        succeededCount specifies the minimal required size of the actual set of the succeeded indexes for the Job. When succeededCount is used along with succeededIndexes, the check is constrained only to the set of indexes specified by succeededIndexes. For example, given that succeededIndexes is “1-4”, succeededCount is “3”, and completed indexes are “1”, “3”, and “5”, the Job isn’t declared as succeeded because only “1” and “3” indexes are considered in that rules. When this field is null, this doesn’t default to any value and is never evaluated at any time. When specified it needs to be a positive integer.

      • successPolicy.rules.succeededIndexes (string)

        succeededIndexes specifies the set of indexes which need to be contained in the actual set of the succeeded indexes for the Job. The list of indexes must be within 0 to “.spec.completions-1” and must not contain duplicates. At least one element is required. The indexes are represented as intervals separated by commas. The intervals can be a decimal integer or a pair of decimal integers separated by a hyphen. The number are listed in represented by the first and last element of the series, separated by a hyphen. For example, if the completed indexes are 1, 3, 4, 5 and 7, they are represented as “1,3-5,7”. When this field is null, this field doesn’t default to any value and is never evaluated at any time.

Alpha level

  • backoffLimitPerIndex (int32)

    Specifies the limit for the number of retries within an index before marking this index as failed. When enabled the number of failures per index is kept in the pod’s batch.kubernetes.io/job-index-failure-count annotation. It can only be set when Job’s completionMode=Indexed, and the Pod’s restart policy is Never. The field is immutable. This field is beta-level. It can be used when the JobBackoffLimitPerIndex feature gate is enabled (enabled by default).

  • managedBy (string)

    ManagedBy field indicates the controller that manages a Job. The k8s Job controller reconciles jobs which don’t have this field at all or the field value is the reserved string kubernetes.io/job-controller, but skips reconciling Jobs with a custom value for this field. The value must be a valid domain-prefixed path (e.g. acme.io/foo) - all characters before the first “/“ must be a valid subdomain as defined by RFC 1123. All characters trailing the first “/“ must be valid HTTP Path characters as defined by RFC 3986. The value cannot exceed 63 characters. This field is immutable.

    This field is alpha-level. The job controller accepts setting the field when the feature gate JobManagedBy is enabled (disabled by default).

  • maxFailedIndexes (int32)

    Specifies the maximal number of failed indexes before marking the Job as failed, when backoffLimitPerIndex is set. Once the number of failed indexes exceeds this number the entire Job is marked as Failed and its execution is terminated. When left as null the job continues execution of all of its indexes and is marked with the Complete Job condition. It can only be specified when backoffLimitPerIndex is set. It can be null or up to completions. It is required and must be less than or equal to 10^4 when is completions greater than 10^5. This field is beta-level. It can be used when the JobBackoffLimitPerIndex feature gate is enabled (enabled by default).

  • podReplacementPolicy (string)

    podReplacementPolicy specifies when to create replacement Pods. Possible values are: - TerminatingOrFailed means that we recreate pods when they are terminating (has a metadata.deletionTimestamp) or failed.

    • Failed means to wait until a previously created Pod is fully terminated (has phase Failed or Succeeded) before creating a replacement Pod.

    When using podFailurePolicy, Failed is the the only allowed value. TerminatingOrFailed and Failed are allowed values when podFailurePolicy is not in use. This is an beta field. To use this, enable the JobPodReplacementPolicy feature toggle. This is on by default.

JobStatus

JobStatus represents the current state of a Job.

  • startTime (Time)

    Represents time when the job controller started processing a job. When a Job is created in the suspended state, this field is not set until the first time it is resumed. This field is reset every time a Job is resumed from suspension. It is represented in RFC3339 form and is in UTC.

    Once set, the field can only be removed when the job is suspended. The field cannot be modified while the job is unsuspended or finished.

    Time is a wrapper around time.Time which supports correct marshaling to YAML and JSON. Wrappers are provided for many of the factory methods that the time package offers.

  • completionTime (Time)

    Represents time when the job was completed. It is not guaranteed to be set in happens-before order across separate operations. It is represented in RFC3339 form and is in UTC. The completion time is set when the job finishes successfully, and only then. The value cannot be updated or removed. The value indicates the same or later point in time as the startTime field.

    Time is a wrapper around time.Time which supports correct marshaling to YAML and JSON. Wrappers are provided for many of the factory methods that the time package offers.

  • active (int32)

    The number of pending and running pods which are not terminating (without a deletionTimestamp). The value is zero for finished jobs.

  • failed (int32)

    The number of pods which reached phase Failed. The value increases monotonically.

  • succeeded (int32)

    The number of pods which reached phase Succeeded. The value increases monotonically for a given spec. However, it may decrease in reaction to scale down of elastic indexed jobs.

  • completedIndexes (string)

    completedIndexes holds the completed indexes when .spec.completionMode = “Indexed” in a text format. The indexes are represented as decimal integers separated by commas. The numbers are listed in increasing order. Three or more consecutive numbers are compressed and represented by the first and last element of the series, separated by a hyphen. For example, if the completed indexes are 1, 3, 4, 5 and 7, they are represented as “1,3-5,7”.

  • conditions ([]JobCondition)

    Patch strategy: merge on key type

    Atomic: will be replaced during a merge

    The latest available observations of an object’s current state. When a Job fails, one of the conditions will have type “Failed” and status true. When a Job is suspended, one of the conditions will have type “Suspended” and status true; when the Job is resumed, the status of this condition will become false. When a Job is completed, one of the conditions will have type “Complete” and status true.

    A job is considered finished when it is in a terminal condition, either “Complete” or “Failed”. A Job cannot have both the “Complete” and “Failed” conditions. Additionally, it cannot be in the “Complete” and “FailureTarget” conditions. The “Complete”, “Failed” and “FailureTarget” conditions cannot be disabled.

    More info: https://kubernetes.io/docs/concepts/workloads/controllers/jobs-run-to-completion/

    JobCondition describes current state of a job.

    • conditions.status (string), required

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

    • conditions.type (string), required

      Type of job condition, Complete or Failed.

    • conditions.lastProbeTime (Time)

      Last time the condition was checked.

      Time is a wrapper around time.Time which supports correct marshaling to YAML and JSON. Wrappers are provided for many of the factory methods that the time package offers.

    • conditions.lastTransitionTime (Time)

      Last time the condition transit from one status to another.

      Time is a wrapper around time.Time which supports correct marshaling to YAML and JSON. Wrappers are provided for many of the factory methods that the time package offers.

    • conditions.message (string)

      Human readable message indicating details about last transition.

    • conditions.reason (string)

      (brief) reason for the condition’s last transition.

  • uncountedTerminatedPods (UncountedTerminatedPods)

    uncountedTerminatedPods holds the UIDs of Pods that have terminated but the job controller hasn’t yet accounted for in the status counters.

    The job controller creates pods with a finalizer. When a pod terminates (succeeded or failed), the controller does three steps to account for it in the job status:

    1. Add the pod UID to the arrays in this field. 2. Remove the pod finalizer. 3. Remove the pod UID from the arrays while increasing the corresponding counter.

    Old jobs might not be tracked using this field, in which case the field remains null. The structure is empty for finished jobs.

    UncountedTerminatedPods holds UIDs of Pods that have terminated but haven’t been accounted in Job status counters.

    • uncountedTerminatedPods.failed ([]string)

      Set: unique values will be kept during a merge

      failed holds UIDs of failed Pods.

    • uncountedTerminatedPods.succeeded ([]string)

      Set: unique values will be kept during a merge

      succeeded holds UIDs of succeeded Pods.

Beta level

  • ready (int32)

    The number of active pods which have a Ready condition and are not terminating (without a deletionTimestamp).

Alpha level

  • failedIndexes (string)

    FailedIndexes holds the failed indexes when spec.backoffLimitPerIndex is set. The indexes are represented in the text format analogous as for the completedIndexes field, ie. they are kept as decimal integers separated by commas. The numbers are listed in increasing order. Three or more consecutive numbers are compressed and represented by the first and last element of the series, separated by a hyphen. For example, if the failed indexes are 1, 3, 4, 5 and 7, they are represented as “1,3-5,7”. The set of failed indexes cannot overlap with the set of completed indexes.

    This field is beta-level. It can be used when the JobBackoffLimitPerIndex feature gate is enabled (enabled by default).

  • terminating (int32)

    The number of pods which are terminating (in phase Pending or Running and have a deletionTimestamp).

    This field is beta-level. The job controller populates the field when the feature gate JobPodReplacementPolicy is enabled (enabled by default).

JobList

JobList is a collection of jobs.

Operations

get read the specified Job

HTTP Request

GET /apis/batch/v1/namespaces/{namespace}/jobs/{name}

Parameters

  • name (in path): string, required

    name of the Job

  • namespace (in path): string, required

    namespace

  • pretty (in query): string

    pretty

Response

200 (Job): OK

401: Unauthorized

get read status of the specified Job

HTTP Request

GET /apis/batch/v1/namespaces/{namespace}/jobs/{name}/status

Parameters

  • name (in path): string, required

    name of the Job

  • namespace (in path): string, required

    namespace

  • pretty (in query): string

    pretty

Response

200 (Job): OK

401: Unauthorized

list list or watch objects of kind Job

HTTP Request

GET /apis/batch/v1/namespaces/{namespace}/jobs

Parameters

Response

200 (JobList): OK

401: Unauthorized

list list or watch objects of kind Job

HTTP Request

GET /apis/batch/v1/jobs

Parameters

Response

200 (JobList): OK

401: Unauthorized

create create a Job

HTTP Request

POST /apis/batch/v1/namespaces/{namespace}/jobs

Parameters

Response

200 (Job): OK

201 (Job): Created

202 (Job): Accepted

401: Unauthorized

update replace the specified Job

HTTP Request

PUT /apis/batch/v1/namespaces/{namespace}/jobs/{name}

Parameters

  • name (in path): string, required

    name of the Job

  • namespace (in path): string, required

    namespace

  • body: Job, required

  • dryRun (in query): string

    dryRun

  • fieldManager (in query): string

    fieldManager

  • fieldValidation (in query): string

    fieldValidation

  • pretty (in query): string

    pretty

Response

200 (Job): OK

201 (Job): Created

401: Unauthorized

update replace status of the specified Job

HTTP Request

PUT /apis/batch/v1/namespaces/{namespace}/jobs/{name}/status

Parameters

  • name (in path): string, required

    name of the Job

  • namespace (in path): string, required

    namespace

  • body: Job, required

  • dryRun (in query): string

    dryRun

  • fieldManager (in query): string

    fieldManager

  • fieldValidation (in query): string

    fieldValidation

  • pretty (in query): string

    pretty

Response

200 (Job): OK

201 (Job): Created

401: Unauthorized

patch partially update the specified Job

HTTP Request

PATCH /apis/batch/v1/namespaces/{namespace}/jobs/{name}

Parameters

  • name (in path): string, required

    name of the Job

  • namespace (in path): string, required

    namespace

  • body: Patch, required

  • dryRun (in query): string

    dryRun

  • fieldManager (in query): string

    fieldManager

  • fieldValidation (in query): string

    fieldValidation

  • force (in query): boolean

    force

  • pretty (in query): string

    pretty

Response

200 (Job): OK

201 (Job): Created

401: Unauthorized

patch partially update status of the specified Job

HTTP Request

PATCH /apis/batch/v1/namespaces/{namespace}/jobs/{name}/status

Parameters

  • name (in path): string, required

    name of the Job

  • namespace (in path): string, required

    namespace

  • body: Patch, required

  • dryRun (in query): string

    dryRun

  • fieldManager (in query): string

    fieldManager

  • fieldValidation (in query): string

    fieldValidation

  • force (in query): boolean

    force

  • pretty (in query): string

    pretty

Response

200 (Job): OK

201 (Job): Created

401: Unauthorized

delete delete a Job

HTTP Request

DELETE /apis/batch/v1/namespaces/{namespace}/jobs/{name}

Parameters

Response

200 (Status): OK

202 (Status): Accepted

401: Unauthorized

deletecollection delete collection of Job

HTTP Request

DELETE /apis/batch/v1/namespaces/{namespace}/jobs

Parameters

Response

200 (Status): OK

401: Unauthorized