ScheduledJob validation & defaults

pkg/apis/batch/validation/validation.go

@@ -17,6 +17,8 @@ limitations under the License.
 package validation
 
 import (
+	"github.com/robfig/cron"
+
 	"k8s.io/kubernetes/pkg/api"
 	"k8s.io/kubernetes/pkg/api/unversioned"
 	unversionedvalidation "k8s.io/kubernetes/pkg/api/unversioned/validation"
@@ -155,3 +157,65 @@ func ValidateJobStatusUpdate(status, oldStatus batch.JobStatus) field.ErrorList
 	allErrs = append(allErrs, ValidateJobStatus(&status, field.NewPath("status"))...)
 	return allErrs
 }
+
+func ValidateScheduledJob(scheduledJob *batch.ScheduledJob) field.ErrorList {
+	// ScheduledJobs and rcs have the same name validation
+	allErrs := apivalidation.ValidateObjectMeta(&scheduledJob.ObjectMeta, true, apivalidation.ValidateReplicationControllerName, field.NewPath("metadata"))
+	allErrs = append(allErrs, ValidateScheduledJobSpec(&scheduledJob.Spec, field.NewPath("spec"))...)
+	return allErrs
+}
+
+func ValidateScheduledJobSpec(spec *batch.ScheduledJobSpec, fldPath *field.Path) field.ErrorList {
+	allErrs := field.ErrorList{}
+
+	if len(spec.Schedule) == 0 {
+		allErrs = append(allErrs, field.Required(fldPath.Child("schedule"), ""))
+	} else {
+		allErrs = append(allErrs, validateScheduleFormat(spec.Schedule, fldPath.Child("schedule"))...)
+	}
+	if spec.StartingDeadlineSeconds != nil {
+		allErrs = append(allErrs, apivalidation.ValidateNonnegativeField(int64(*spec.StartingDeadlineSeconds), fldPath.Child("startingDeadlineSeconds"))...)
+	}
+	allErrs = append(allErrs, validateConcurrencyPolicy(&spec.ConcurrencyPolicy, fldPath.Child("concurrencyPolicy"))...)
+	allErrs = append(allErrs, ValidateJobTemplateSpec(&spec.JobTemplate, fldPath.Child("jobTemplate"))...)
+
+	return allErrs
+}
+
+func validateConcurrencyPolicy(concurrencyPolicy *batch.ConcurrencyPolicy, fldPath *field.Path) field.ErrorList {
+	allErrs := field.ErrorList{}
+	switch *concurrencyPolicy {
+	case batch.AllowConcurrent, batch.ForbidConcurrent, batch.ReplaceConcurrent:
+		break
+	case "":
+		allErrs = append(allErrs, field.Required(fldPath, ""))
+	default:
+		validValues := []string{string(batch.AllowConcurrent), string(batch.ForbidConcurrent), string(batch.ReplaceConcurrent)}
+		allErrs = append(allErrs, field.NotSupported(fldPath, *concurrencyPolicy, validValues))
+	}
+
+	return allErrs
+}
+
+func validateScheduleFormat(schedule string, fldPath *field.Path) field.ErrorList {
+	allErrs := field.ErrorList{}
+	_, err := cron.Parse(schedule)
+	if err != nil {
+		allErrs = append(allErrs, field.Invalid(fldPath, schedule, err.Error()))
+	}
+
+	return allErrs
+}
+
+func ValidateJobTemplate(job *batch.JobTemplate) field.ErrorList {
+	// this method should be identical to ValidateJob
+	allErrs := apivalidation.ValidateObjectMeta(&job.ObjectMeta, true, apivalidation.ValidateReplicationControllerName, field.NewPath("metadata"))
+	allErrs = append(allErrs, ValidateJobTemplateSpec(&job.Template, field.NewPath("template"))...)
+	return allErrs
+}
+
+func ValidateJobTemplateSpec(spec *batch.JobTemplateSpec, fldPath *field.Path) field.ErrorList {
+	// this method should be identical to ValidateJob
+	allErrs := ValidateJobSpec(&spec.Spec, fldPath.Child("spec"))
+	return allErrs
+}