in flink-kubernetes-operator/src/main/java/org/apache/flink/kubernetes/operator/config/FlinkConfigBuilder.java [454:488]
protected static Pod applyResourceToPodTemplate(Pod podTemplate, Resource resource) {
if (resource == null
|| StringUtils.isNullOrWhitespaceOnly(resource.getEphemeralStorage())) {
return podTemplate;
}
if (podTemplate == null) {
Pod newPodTemplate = new Pod();
newPodTemplate.setSpec(createPodSpecWithResource(resource));
return newPodTemplate;
} else if (podTemplate.getSpec() == null) {
podTemplate.setSpec(createPodSpecWithResource(resource));
return podTemplate;
} else {
boolean hasMainContainer = false;
for (Container container : podTemplate.getSpec().getContainers()) {
if (container.getName().equals(Constants.MAIN_CONTAINER_NAME)) {
decorateContainerWithEphemeralStorage(
container, resource.getEphemeralStorage());
hasMainContainer = true;
}
}
if (!hasMainContainer) {
podTemplate
.getSpec()
.getContainers()
.add(
decorateContainerWithEphemeralStorage(
new Container(), resource.getEphemeralStorage()));
}
}
return podTemplate;
}