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update validation logic so completions is mutable iff completions is modified in tandem with parallelsim so completions == parallelism

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This commit is contained in:
Daniel Vega-Myhre
2023-01-20 23:55:54 +00:00
parent b86f94f438
commit d41302312e
5 changed files with 354 additions and 4 deletions
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31
pkg/apis/batch/validation/validation.go
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@@ -31,9 +31,11 @@ import (
"k8s.io/apimachinery/pkg/util/sets"
apimachineryvalidation "k8s.io/apimachinery/pkg/util/validation"
"k8s.io/apimachinery/pkg/util/validation/field"
"k8s.io/apiserver/pkg/util/feature"
"k8s.io/kubernetes/pkg/apis/batch"
api "k8s.io/kubernetes/pkg/apis/core"
apivalidation "k8s.io/kubernetes/pkg/apis/core/validation"
"k8s.io/kubernetes/pkg/features"
"k8s.io/utils/pointer"
)
@@ -375,7 +377,7 @@ func ValidateJobUpdateStatus(job, oldJob *batch.Job) field.ErrorList {
func ValidateJobSpecUpdate(spec, oldSpec batch.JobSpec, fldPath *field.Path, opts JobValidationOptions) field.ErrorList {
allErrs := field.ErrorList{}
allErrs = append(allErrs, ValidateJobSpec(&spec, fldPath, opts.PodValidationOptions)...)
allErrs = append(allErrs, apivalidation.ValidateImmutableField(spec.Completions, oldSpec.Completions, fldPath.Child("completions"))...)
allErrs = append(allErrs, validateCompletions(spec, oldSpec, fldPath.Child("completions"))...)
allErrs = append(allErrs, apivalidation.ValidateImmutableField(spec.Selector, oldSpec.Selector, fldPath.Child("selector"))...)
allErrs = append(allErrs, validatePodTemplateUpdate(spec, oldSpec, fldPath, opts)...)
allErrs = append(allErrs, apivalidation.ValidateImmutableField(spec.CompletionMode, oldSpec.CompletionMode, fldPath.Child("completionMode"))...)
@@ -565,6 +567,33 @@ func ValidateJobTemplateSpec(spec *batch.JobTemplateSpec, fldPath *field.Path, o
return allErrs
}
func validateCompletions(spec, oldSpec batch.JobSpec, fldPath *field.Path) field.ErrorList {
var allErrs field.ErrorList
// Completions is immutable for non-indexed jobs.
// For Indexed Jobs, if ElasticIndexedJob feature gate is not enabled,
// fall back to validating that spec.Completions is always immutable.
isIndexedJob := spec.CompletionMode != nil && *spec.CompletionMode == batch.IndexedCompletion
if !isIndexedJob || !feature.DefaultFeatureGate.Enabled(features.ElasticIndexedJob) {
return apivalidation.ValidateImmutableField(spec.Completions, oldSpec.Completions, fldPath)
}
// Indexed Jobs cannot set completions to nil. The nil check
// is already performed in validateJobSpec, no need to add another error.
if spec.Completions == nil || oldSpec.Completions == nil {
return allErrs
}
// For Indexed Jobs, spec.Completions can only be mutated in tandem
// with spec.Parallelism such that spec.Completions == spec.Parallelism
if *spec.Completions != *oldSpec.Completions {
if *spec.Completions != *spec.Parallelism || *oldSpec.Completions != *oldSpec.Parallelism {
allErrs = append(allErrs, field.Invalid(fldPath, spec.Completions, fmt.Sprintf("can only be modified in tandem with %s", fldPath.Root().Child("parallelism").String())))
}
}
return allErrs
}
type JobValidationOptions struct {
apivalidation.PodValidationOptions
// Allow Job to have the annotation batch.kubernetes.io/job-tracking