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Support generation of Job/CronJob resources
Fix quarkusio#27024
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121 changes: 121 additions & 0 deletions
121
...eployment/src/main/java/io/quarkus/kubernetes/deployment/AddCronJobResourceDecorator.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,121 @@ | ||
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| package io.quarkus.kubernetes.deployment; | ||
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| import static io.quarkus.kubernetes.deployment.Constants.CRONJOB; | ||
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| import java.util.HashMap; | ||
| import java.util.List; | ||
| import java.util.function.Function; | ||
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| import io.dekorate.kubernetes.decorator.ResourceProvidingDecorator; | ||
| import io.dekorate.utils.Strings; | ||
| import io.fabric8.kubernetes.api.model.Container; | ||
| import io.fabric8.kubernetes.api.model.HasMetadata; | ||
| import io.fabric8.kubernetes.api.model.KubernetesListFluent; | ||
| import io.fabric8.kubernetes.api.model.batch.v1.CronJob; | ||
| import io.fabric8.kubernetes.api.model.batch.v1.CronJobBuilder; | ||
| import io.fabric8.kubernetes.api.model.batch.v1.CronJobFluent; | ||
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| public class AddCronJobResourceDecorator extends ResourceProvidingDecorator<KubernetesListFluent<?>> { | ||
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| private final String name; | ||
| private final CronJobConfig config; | ||
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| public AddCronJobResourceDecorator(String name, CronJobConfig config) { | ||
| this.name = name; | ||
| this.config = config; | ||
| } | ||
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| @SuppressWarnings("deprecation") | ||
| @Override | ||
| public void visit(KubernetesListFluent<?> list) { | ||
| CronJobBuilder builder = list.getItems().stream() | ||
| .filter(this::containsCronJobResource) | ||
| .map(replaceExistingCronJobResource(list)) | ||
| .findAny() | ||
| .orElseGet(this::createCronJobResource) | ||
| .accept(CronJobBuilder.class, this::initCronJobResourceWithDefaults); | ||
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| if (Strings.isNullOrEmpty(builder.getSpec().getSchedule())) { | ||
| throw new IllegalArgumentException( | ||
| "When generating a CronJob resource, you need to specify a schedule CRON expression."); | ||
| } | ||
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| list.addToItems(builder.build()); | ||
| } | ||
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| private boolean containsCronJobResource(HasMetadata metadata) { | ||
| return CRONJOB.equalsIgnoreCase(metadata.getKind()) && name.equals(metadata.getMetadata().getName()); | ||
| } | ||
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| private void initCronJobResourceWithDefaults(CronJobBuilder builder) { | ||
| CronJobFluent.SpecNested<CronJobBuilder> spec = builder.editOrNewSpec(); | ||
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| var jobTemplateSpec = spec | ||
| .editOrNewJobTemplate() | ||
| .editOrNewSpec(); | ||
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| jobTemplateSpec.editOrNewSelector() | ||
| .endSelector() | ||
| .editOrNewTemplate() | ||
| .editOrNewSpec() | ||
| .endSpec() | ||
| .endTemplate(); | ||
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| // defaults for: | ||
| // - match labels | ||
| if (jobTemplateSpec.getSelector().getMatchLabels() == null) { | ||
| jobTemplateSpec.editSelector().withMatchLabels(new HashMap<>()).endSelector(); | ||
| } | ||
| // - termination grace period seconds | ||
| if (jobTemplateSpec.getTemplate().getSpec().getTerminationGracePeriodSeconds() == null) { | ||
| jobTemplateSpec.editTemplate().editSpec().withTerminationGracePeriodSeconds(10L).endSpec().endTemplate(); | ||
| } | ||
| // - container | ||
| if (!containsContainerWithName(spec)) { | ||
| jobTemplateSpec.editTemplate().editSpec().addNewContainer().withName(name).endContainer().endSpec().endTemplate(); | ||
| } | ||
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| spec.withSuspend(config.suspend); | ||
| spec.withConcurrencyPolicy(config.concurrencyPolicy.name()); | ||
| config.schedule.ifPresent(spec::withSchedule); | ||
| config.successfulJobsHistoryLimit.ifPresent(spec::withSuccessfulJobsHistoryLimit); | ||
| config.failedJobsHistoryLimit.ifPresent(spec::withFailedJobsHistoryLimit); | ||
| config.startingDeadlineSeconds.ifPresent(spec::withStartingDeadlineSeconds); | ||
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| jobTemplateSpec.withCompletionMode(config.completionMode.name()); | ||
| jobTemplateSpec.editTemplate().editSpec().withRestartPolicy(config.restartPolicy.name()).endSpec().endTemplate(); | ||
| config.parallelism.ifPresent(jobTemplateSpec::withParallelism); | ||
| config.completions.ifPresent(jobTemplateSpec::withCompletions); | ||
| config.backoffLimit.ifPresent(jobTemplateSpec::withBackoffLimit); | ||
| config.activeDeadlineSeconds.ifPresent(jobTemplateSpec::withActiveDeadlineSeconds); | ||
| config.ttlSecondsAfterFinished.ifPresent(jobTemplateSpec::withTtlSecondsAfterFinished); | ||
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| jobTemplateSpec.endSpec().endJobTemplate(); | ||
| spec.endSpec(); | ||
| } | ||
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| private CronJobBuilder createCronJobResource() { | ||
| return new CronJobBuilder().withNewMetadata().withName(name).endMetadata(); | ||
| } | ||
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| private Function<HasMetadata, CronJobBuilder> replaceExistingCronJobResource(KubernetesListFluent<?> list) { | ||
| return metadata -> { | ||
| list.removeFromItems(metadata); | ||
| return new CronJobBuilder((CronJob) metadata); | ||
| }; | ||
| } | ||
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| private boolean containsContainerWithName(CronJobFluent.SpecNested<CronJobBuilder> spec) { | ||
| var jobTemplate = spec.getJobTemplate(); | ||
| if (jobTemplate == null | ||
| || jobTemplate.getSpec() == null | ||
| || jobTemplate.getSpec().getTemplate() == null | ||
| || jobTemplate.getSpec().getTemplate().getSpec() == null) { | ||
| return false; | ||
| } | ||
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| List<Container> containers = jobTemplate.getSpec().getTemplate().getSpec().getContainers(); | ||
| return containers == null || containers.stream().anyMatch(c -> name.equals(c.getName())); | ||
| } | ||
| } |
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