return IJobUpdate.build(new JobUpdate()
.setSummary(new JobUpdateSummary()
.setJobKey(JOB_KEY.newBuilder())
.setUpdateId(UPDATE_ID)
.setUser(ROLE_IDENTITY.getUser()))
.setInstructions(new JobUpdateInstructions()
.setSettings(buildJobUpdateSettings())
.setDesiredState(new InstanceTaskConfig()
.setTask(newConfig.newBuilder())
.setInstances(ImmutableSet.of(new Range(0, instanceCount - 1))))
.setInitialState(builder.build())));