com.hubspot.singularity.data.SingularityValidator Maven / Gradle / Ivy
package com.hubspot.singularity.data;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.hubspot.singularity.WebExceptions.badRequest;
import static com.hubspot.singularity.WebExceptions.checkBadRequest;
import static com.hubspot.singularity.WebExceptions.checkConflict;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.TimeZone;
import java.util.UUID;
import java.util.concurrent.TimeUnit;
import java.util.regex.Pattern;
import javax.inject.Singleton;
import org.apache.commons.lang3.ArrayUtils;
import org.apache.commons.lang3.StringUtils;
import org.dmfs.rfc5545.recur.InvalidRecurrenceRuleException;
import org.dmfs.rfc5545.recur.RecurrenceRule;
import org.quartz.CronExpression;
import com.google.common.base.Joiner;
import com.google.common.base.Optional;
import com.google.common.base.Strings;
import com.google.common.base.Predicate;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import com.google.common.collect.Sets;
import com.google.common.hash.Hashing;
import com.google.inject.Inject;
import com.hubspot.mesos.Resources;
import com.hubspot.mesos.SingularityContainerInfo;
import com.hubspot.mesos.SingularityContainerType;
import com.hubspot.mesos.SingularityDockerInfo;
import com.hubspot.mesos.SingularityDockerParameter;
import com.hubspot.mesos.SingularityDockerPortMapping;
import com.hubspot.mesos.SingularityMesosTaskLabel;
import com.hubspot.mesos.SingularityPortMappingType;
import com.hubspot.mesos.SingularityVolume;
import com.hubspot.singularity.MachineState;
import com.hubspot.singularity.ScheduleType;
import com.hubspot.singularity.SingularityDeploy;
import com.hubspot.singularity.SingularityDeployBuilder;
import com.hubspot.singularity.SingularityAction;
import com.hubspot.singularity.SingularityPriorityFreezeParent;
import com.hubspot.singularity.SingularityRequest;
import com.hubspot.singularity.SingularityRequestGroup;
import com.hubspot.singularity.SingularityShellCommand;
import com.hubspot.singularity.SingularityWebhook;
import com.hubspot.singularity.SlavePlacement;
import com.hubspot.singularity.WebExceptions;
import com.hubspot.singularity.api.SingularityMachineChangeRequest;
import com.hubspot.singularity.api.SingularityPriorityFreeze;
import com.hubspot.singularity.api.SingularityBounceRequest;
import com.hubspot.singularity.config.SingularityConfiguration;
import com.hubspot.singularity.config.UIConfiguration;
import com.hubspot.singularity.config.shell.ShellCommandDescriptor;
import com.hubspot.singularity.config.shell.ShellCommandOptionDescriptor;
import com.hubspot.singularity.data.history.DeployHistoryHelper;
import com.hubspot.singularity.expiring.SingularityExpiringMachineState;
@Singleton
public class SingularityValidator {
private static final Joiner JOINER = Joiner.on(" ");
private static final List DEPLOY_ID_ILLEGAL_CHARACTERS = Arrays.asList('@', '-', '\\', '/', '*', '?', '%', ' ', '[', ']', '#', '$'); // Characters that make Mesos or URL bars sad
private static final List REQUEST_ID_ILLEGAL_CHARACTERS = Arrays.asList('@', '\\', '/', '*', '?', '%', ' ', '[', ']', '#', '$'); // Characters that make Mesos or URL bars sad
private static final Pattern DAY_RANGE_REGEXP = Pattern.compile("[0-7]-[0-7]");
private static final Pattern COMMA_DAYS_REGEXP = Pattern.compile("([0-7],)+([0-7])?");
private static final int MAX_STARRED_REQUESTS = 5000;
private final int maxDeployIdSize;
private final int maxRequestIdSize;
private final int maxUserIdSize;
private final int maxCpusPerRequest;
private final int maxCpusPerInstance;
private final int maxInstancesPerRequest;
private final int defaultBounceExpirationMinutes;
private final int maxMemoryMbPerRequest;
private final int maxMemoryMbPerInstance;
private final boolean allowRequestsWithoutOwners;
private final boolean createDeployIds;
private final int deployIdLength;
private final UIConfiguration uiConfiguration;
private final SlavePlacement defaultSlavePlacement;
private final DeployHistoryHelper deployHistoryHelper;
private final Resources defaultResources;
private final PriorityManager priorityManager;
private final DisasterManager disasterManager;
private final SlaveManager slaveManager;
@Inject
public SingularityValidator(SingularityConfiguration configuration, DeployHistoryHelper deployHistoryHelper, PriorityManager priorityManager, DisasterManager disasterManager, SlaveManager slaveManager, UIConfiguration uiConfiguration) {
this.maxDeployIdSize = configuration.getMaxDeployIdSize();
this.maxRequestIdSize = configuration.getMaxRequestIdSize();
this.maxUserIdSize = configuration.getMaxUserIdSize();
this.allowRequestsWithoutOwners = configuration.isAllowRequestsWithoutOwners();
this.createDeployIds = configuration.isCreateDeployIds();
this.deployIdLength = configuration.getDeployIdLength();
this.deployHistoryHelper = deployHistoryHelper;
this.priorityManager = priorityManager;
int defaultCpus = configuration.getMesosConfiguration().getDefaultCpus();
int defaultMemoryMb = configuration.getMesosConfiguration().getDefaultMemory();
int defaultDiskMb = configuration.getMesosConfiguration().getDefaultDisk();
this.defaultBounceExpirationMinutes = configuration.getDefaultBounceExpirationMinutes();
this.defaultSlavePlacement = configuration.getDefaultSlavePlacement();
defaultResources = new Resources(defaultCpus, defaultMemoryMb, 0, defaultDiskMb);
this.maxCpusPerInstance = configuration.getMesosConfiguration().getMaxNumCpusPerInstance();
this.maxCpusPerRequest = configuration.getMesosConfiguration().getMaxNumCpusPerRequest();
this.maxMemoryMbPerInstance = configuration.getMesosConfiguration().getMaxMemoryMbPerInstance();
this.maxMemoryMbPerRequest = configuration.getMesosConfiguration().getMaxMemoryMbPerRequest();
this.maxInstancesPerRequest = configuration.getMesosConfiguration().getMaxNumInstancesPerRequest();
this.uiConfiguration = uiConfiguration;
this.disasterManager = disasterManager;
this.slaveManager = slaveManager;
}
public SingularityRequest checkSingularityRequest(SingularityRequest request, Optional existingRequest, Optional activeDeploy,
Optional pendingDeploy) {
checkBadRequest(request.getId() != null && !StringUtils.containsAny(request.getId(), JOINER.join(REQUEST_ID_ILLEGAL_CHARACTERS)), "Id can not be null or contain any of the following characters: %s", REQUEST_ID_ILLEGAL_CHARACTERS);
checkBadRequest(request.getRequestType() != null, "RequestType cannot be null or missing");
if (request.getOwners().isPresent()) {
checkBadRequest(!request.getOwners().get().contains(null), "Request owners cannot contain null values");
}
if (!allowRequestsWithoutOwners) {
checkBadRequest(request.getOwners().isPresent() && !request.getOwners().get().isEmpty(), "Request must have owners defined (this can be turned off in Singularity configuration)");
}
checkBadRequest(request.getId().length() < maxRequestIdSize, "Request id must be less than %s characters, it is %s (%s)", maxRequestIdSize, request.getId().length(), request.getId());
checkBadRequest(!request.getInstances().isPresent() || request.getInstances().get() > 0, "Instances must be greater than 0");
checkBadRequest(request.getInstancesSafe() <= maxInstancesPerRequest, "Instances (%s) be greater than %s (maxInstancesPerRequest in mesos configuration)", request.getInstancesSafe(), maxInstancesPerRequest);
if (request.getTaskPriorityLevel().isPresent()) {
checkBadRequest(request.getTaskPriorityLevel().get() >= 0 && request.getTaskPriorityLevel().get() <= 1, "Request taskPriorityLevel %s is invalid, must be between 0 and 1 (inclusive).", request.getTaskPriorityLevel().get());
}
if (existingRequest.isPresent()) {
checkForIllegalChanges(request, existingRequest.get());
}
if (activeDeploy.isPresent()) {
checkForIllegalResources(request, activeDeploy.get());
}
if (pendingDeploy.isPresent()) {
checkForIllegalResources(request, pendingDeploy.get());
}
String quartzSchedule = null;
if (request.isScheduled()) {
checkBadRequest(request.getQuartzSchedule().isPresent() || request.getSchedule().isPresent(), "Specify at least one of schedule or quartzSchedule");
String originalSchedule = request.getQuartzScheduleSafe();
if (request.getScheduleType().or(ScheduleType.QUARTZ) != ScheduleType.RFC5545) {
if (request.getQuartzSchedule().isPresent() && !request.getSchedule().isPresent()) {
checkBadRequest(request.getScheduleType().or(ScheduleType.QUARTZ) == ScheduleType.QUARTZ, "If using quartzSchedule specify scheduleType QUARTZ or leave it blank");
}
if (request.getQuartzSchedule().isPresent() || (request.getScheduleType().isPresent() && request.getScheduleType().get() == ScheduleType.QUARTZ)) {
quartzSchedule = originalSchedule;
} else {
checkBadRequest(request.getScheduleType().or(ScheduleType.CRON) == ScheduleType.CRON, "If not using quartzSchedule specify scheduleType CRON or leave it blank");
checkBadRequest(!request.getQuartzSchedule().isPresent(), "If using schedule type CRON do not specify quartzSchedule");
quartzSchedule = getQuartzScheduleFromCronSchedule(originalSchedule);
}
checkBadRequest(isValidCronSchedule(quartzSchedule), "Schedule %s (from: %s) is not valid", quartzSchedule, originalSchedule);
} else {
checkForValidRFC5545Schedule(request.getSchedule().get());
}
} else {
checkBadRequest(!request.getQuartzSchedule().isPresent() && !request.getSchedule().isPresent(), "Non-scheduled requests can not specify a schedule");
checkBadRequest(!request.getScheduleType().isPresent(), "ScheduleType can only be set for scheduled requests");
}
if (request.getScheduleTimeZone().isPresent()) {
if (!ArrayUtils.contains(TimeZone.getAvailableIDs(), request.getScheduleTimeZone().get())) {
badRequest("scheduleTimeZone %s does not map to a valid Java TimeZone object (e.g. 'US/Eastern' or 'GMT')", request.getScheduleTimeZone().get());
}
}
if (!request.isLongRunning()) {
checkBadRequest(!request.isLoadBalanced(), "non-longRunning (scheduled/oneoff) requests can not be load balanced");
checkBadRequest(!request.isRackSensitive(), "non-longRunning (scheduled/oneoff) requests can not be rack sensitive");
} else {
checkBadRequest(!request.getNumRetriesOnFailure().isPresent(), "longRunning requests can not define a NumRetriesOnFailure value");
checkBadRequest(!request.getKillOldNonLongRunningTasksAfterMillis().isPresent(), "longRunning requests can not define a killOldNonLongRunningTasksAfterMillis value");
checkBadRequest(!request.getTaskExecutionTimeLimitMillis().isPresent(), "longRunning requests can not define a taskExecutionTimeLimitMillis value");
}
if (request.isScheduled()) {
checkBadRequest(request.getInstances().or(1) == 1, "Scheduler requests can not be ran on more than one instance");
} else if (request.isOneOff()) {
checkBadRequest(!request.getInstances().isPresent(), "one-off requests can not define a # of instances");
}
return request.toBuilder().setQuartzSchedule(Optional.fromNullable(quartzSchedule)).build();
}
public SingularityWebhook checkSingularityWebhook(SingularityWebhook webhook) {
checkNotNull(webhook, "Webhook is null");
checkNotNull(webhook.getUri(), "URI is null");
try {
new URI(webhook.getUri());
} catch (URISyntaxException e) {
badRequest("Invalid URI provided");
}
return webhook;
}
public SingularityDeploy checkDeploy(SingularityRequest request, SingularityDeploy deploy) {
checkNotNull(request, "request is null");
checkNotNull(deploy, "deploy is null");
String deployId = deploy.getId();
if (deployId == null) {
checkBadRequest(createDeployIds, "Id must not be null");
SingularityDeployBuilder builder = deploy.toBuilder();
builder.setId(createUniqueDeployId());
deploy = builder.build();
deployId = deploy.getId();
}
checkBadRequest(deployId != null && !StringUtils.containsAny(deployId, JOINER.join(DEPLOY_ID_ILLEGAL_CHARACTERS)), "Id must not be null and can not contain any of the following characters: %s", DEPLOY_ID_ILLEGAL_CHARACTERS);
checkBadRequest(deployId.length() < maxDeployIdSize, "Deploy id must be less than %s characters, it is %s (%s)", maxDeployIdSize, deployId.length(), deployId);
checkBadRequest(deploy.getRequestId() != null && deploy.getRequestId().equals(request.getId()), "Deploy id must match request id");
if (request.isLoadBalanced()) {
checkBadRequest(deploy.getServiceBasePath().isPresent(), "Deploy for loadBalanced request must include serviceBasePath");
checkBadRequest(deploy.getLoadBalancerGroups().isPresent() && !deploy.getLoadBalancerGroups().get().isEmpty(), "Deploy for a loadBalanced request must include at least one load balacner group");
}
checkForIllegalResources(request, deploy);
if (deploy.getResources().isPresent()) {
if (deploy.getHealthcheckPortIndex().isPresent()) {
checkBadRequest(deploy.getHealthcheckPortIndex().get() >= 0, "healthcheckPortIndex must be greater than 0");
checkBadRequest(deploy.getResources().get().getNumPorts() > deploy.getHealthcheckPortIndex().get(), String
.format("Must request %s ports for healthcheckPortIndex %s, only requested %s", deploy.getHealthcheckPortIndex().get() + 1, deploy.getHealthcheckPortIndex().get(),
deploy.getResources().get().getNumPorts()));
}
if (deploy.getLoadBalancerPortIndex().isPresent()) {
checkBadRequest(deploy.getLoadBalancerPortIndex().get() >= 0, "loadBalancerPortIndex must be greater than 0");
checkBadRequest(deploy.getResources().get().getNumPorts() > deploy.getLoadBalancerPortIndex().get(), String
.format("Must request %s ports for loadBalancerPortIndex %s, only requested %s", deploy.getLoadBalancerPortIndex().get() + 1, deploy.getLoadBalancerPortIndex().get(),
deploy.getResources().get().getNumPorts()));
}
}
checkBadRequest(deploy.getCommand().isPresent() && !deploy.getExecutorData().isPresent() ||
deploy.getExecutorData().isPresent() && deploy.getCustomExecutorCmd().isPresent() && !deploy.getCommand().isPresent() ||
deploy.getContainerInfo().isPresent(),
"If not using custom executor, specify a command or containerInfo. If using custom executor, specify executorData and customExecutorCmd and no command.");
checkBadRequest(!deploy.getContainerInfo().isPresent() || deploy.getContainerInfo().get().getType() != null, "Container type must not be null");
if (deploy.getLabels().isPresent() && deploy.getMesosTaskLabels().isPresent()) {
List deprecatedLabels = SingularityMesosTaskLabel.labelsFromMap(deploy.getLabels().get());
checkBadRequest(deprecatedLabels.containsAll(deploy.getMesosLabels().get()) && deploy.getMesosLabels().get().containsAll(deprecatedLabels), "Can only specify one of 'labels' or 'mesosLabels");
}
if (deploy.getTaskLabels().isPresent() && deploy.getMesosTaskLabels().isPresent()) {
for (Map.Entry> entry : deploy.getTaskLabels().get().entrySet()) {
List deprecatedLabels = SingularityMesosTaskLabel.labelsFromMap(entry.getValue());
checkBadRequest(deploy.getMesosTaskLabels().get().containsKey(entry.getKey())
&& deprecatedLabels.containsAll(deploy.getMesosTaskLabels().get().get(entry.getKey()))
&& deploy.getMesosTaskLabels().get().get(entry.getKey()).containsAll(deprecatedLabels),
"Can only specify one of 'taskLabels' or 'mesosTaskLabels");
}
}
if (deploy.getContainerInfo().isPresent()) {
SingularityContainerInfo containerInfo = deploy.getContainerInfo().get();
checkBadRequest(containerInfo.getType() != null, "container type may not be null");
if (containerInfo.getVolumes().isPresent() && !containerInfo.getVolumes().get().isEmpty()) {
for (SingularityVolume volume : containerInfo.getVolumes().get()) {
checkBadRequest(volume.getContainerPath() != null, "volume containerPath may not be null");
}
}
if (deploy.getContainerInfo().get().getType() == SingularityContainerType.DOCKER) {
checkDocker(deploy);
}
}
checkBadRequest(deployHistoryHelper.isDeployIdAvailable(request.getId(), deployId), "Can not deploy a deploy that has already been deployed");
if (request.isDeployable()) {
checkRequestForPriorityFreeze(request);
}
return deploy;
}
/**
*
* Transforms unix cron into quartz compatible cron;
*
* - adds seconds if not included
* - switches either day of month or day of week to ?
*
* Field Name Allowed Values Allowed Special Characters
* Seconds 0-59 - * /
* Minutes 0-59 - * /
* Hours 0-23 - * /
* Day-of-month 1-31 - * ? / L W
* Month 1-12 or JAN-DEC - * /
* Day-of-Week 1-7 or SUN-SAT - * ? / L #
* Year (Optional), 1970-2199 - * /
*/
public String getQuartzScheduleFromCronSchedule(String schedule) {
if (schedule == null) {
return null;
}
String[] split = schedule.split(" ");
checkBadRequest(split.length >= 4, "Schedule %s is invalid because it contained only %s splits (looking for at least 4)", schedule, split.length);
List newSchedule = Lists.newArrayListWithCapacity(6);
boolean hasSeconds = split.length > 5;
if (!hasSeconds) {
newSchedule.add("0");
} else {
newSchedule.add(split[0]);
}
int indexMod = hasSeconds ? 1 : 0;
newSchedule.add(split[indexMod]);
newSchedule.add(split[indexMod + 1]);
String dayOfMonth = split[indexMod + 2];
String dayOfWeek = split[indexMod + 4];
if (dayOfWeek.equals("*")) {
dayOfWeek = "?";
} else if (!dayOfWeek.equals("?")) {
dayOfMonth = "?";
}
if (isValidInteger(dayOfWeek)) {
dayOfWeek = getNewDayOfWeekValue(schedule, Integer.parseInt(dayOfWeek));
} else if (DAY_RANGE_REGEXP.matcher(dayOfWeek).matches() || COMMA_DAYS_REGEXP.matcher(dayOfWeek).matches()) {
String separator = ",";
if (DAY_RANGE_REGEXP.matcher(dayOfWeek).matches()) {
separator = "-";
}
final String[] dayOfWeekSplit = dayOfWeek.split(separator);
final List dayOfWeekValues = new ArrayList<>(dayOfWeekSplit.length);
for (String dayOfWeekValue : dayOfWeekSplit) {
dayOfWeekValues.add(getNewDayOfWeekValue(schedule, Integer.parseInt(dayOfWeekValue)));
}
dayOfWeek = Joiner.on(separator).join(dayOfWeekValues);
}
newSchedule.add(dayOfMonth);
newSchedule.add(split[indexMod + 3]);
newSchedule.add(dayOfWeek);
return JOINER.join(newSchedule);
}
private void checkForIllegalChanges(SingularityRequest request, SingularityRequest existingRequest) {
checkBadRequest(request.getRequestType() == existingRequest.getRequestType(), String.format("Request can not change requestType from %s to %s", existingRequest.getRequestType(), request.getRequestType()));
checkBadRequest(request.isLoadBalanced() == existingRequest.isLoadBalanced(), "Request can not change whether it is load balanced");
}
private void checkForIllegalResources(SingularityRequest request, SingularityDeploy deploy) {
int instances = request.getInstancesSafe();
double cpusPerInstance = deploy.getResources().or(defaultResources).getCpus();
double memoryMbPerInstance = deploy.getResources().or(defaultResources).getMemoryMb();
checkBadRequest(cpusPerInstance > 0, "Request must have more than 0 cpus");
checkBadRequest(memoryMbPerInstance > 0, "Request must have more than 0 memoryMb");
checkBadRequest(cpusPerInstance <= maxCpusPerInstance, "Deploy %s uses too many cpus %s (maxCpusPerInstance %s in mesos configuration)", deploy.getId(), cpusPerInstance, maxCpusPerInstance);
checkBadRequest(cpusPerInstance * instances <= maxCpusPerRequest,
"Deploy %s uses too many cpus %s (%s*%s) (cpusPerRequest %s in mesos configuration)", deploy.getId(), cpusPerInstance * instances, cpusPerInstance, instances, maxCpusPerRequest);
checkBadRequest(memoryMbPerInstance <= maxMemoryMbPerInstance,
"Deploy %s uses too much memoryMb %s (maxMemoryMbPerInstance %s in mesos configuration)", deploy.getId(), memoryMbPerInstance, maxMemoryMbPerInstance);
checkBadRequest(memoryMbPerInstance * instances <= maxMemoryMbPerRequest, "Deploy %s uses too much memoryMb %s (%s*%s) (maxMemoryMbPerRequest %s in mesos configuration)", deploy.getId(),
memoryMbPerInstance * instances, memoryMbPerInstance, instances, maxMemoryMbPerRequest);
}
private void checkForValidRFC5545Schedule(String schedule) {
try {
new RecurrenceRule(schedule);
} catch (InvalidRecurrenceRuleException ex) {
badRequest("Schedule %s is not a valid RFC5545 schedule, error is: %s", schedule, ex);
}
}
private String createUniqueDeployId() {
UUID id = UUID.randomUUID();
String result = Hashing.sha256().newHasher().putLong(id.getLeastSignificantBits()).putLong(id.getMostSignificantBits()).hash().toString();
return result.substring(0, deployIdLength);
}
private void checkDocker(SingularityDeploy deploy) {
if (deploy.getResources().isPresent() && deploy.getContainerInfo().get().getDocker().isPresent()) {
final SingularityDockerInfo dockerInfo = deploy.getContainerInfo().get().getDocker().get();
final int numPorts = deploy.getResources().get().getNumPorts();
checkBadRequest(dockerInfo.getImage() != null, "docker image may not be null");
for (SingularityDockerPortMapping portMapping : dockerInfo.getPortMappings()) {
if (portMapping.getContainerPortType() == SingularityPortMappingType.FROM_OFFER) {
checkBadRequest(portMapping.getContainerPort() >= 0 && portMapping.getContainerPort() < numPorts,
"Index of port resource for containerPort must be between 0 and %d (inclusive)", numPorts - 1);
}
if (portMapping.getHostPortType() == SingularityPortMappingType.FROM_OFFER) {
checkBadRequest(portMapping.getHostPort() >= 0 && portMapping.getHostPort() < numPorts,
"Index of port resource for hostPort must be between 0 and %d (inclusive)", numPorts - 1);
}
}
}
}
private boolean isValidCronSchedule(String schedule) {
return CronExpression.isValidExpression(schedule);
}
/**
* Standard cron: day of week (0 - 6) (0 to 6 are Sunday to Saturday, or use names; 7 is Sunday, the same as 0)
* Quartz: 1-7 or SUN-SAT
*/
private String getNewDayOfWeekValue(String schedule, int dayOfWeekValue) {
String newDayOfWeekValue = null;
checkBadRequest(dayOfWeekValue >= 0 && dayOfWeekValue <= 7, "Schedule %s is invalid, day of week (%s) is not 0-7", schedule, dayOfWeekValue);
switch (dayOfWeekValue) {
case 7:
case 0:
newDayOfWeekValue = "SUN";
break;
case 1:
newDayOfWeekValue = "MON";
break;
case 2:
newDayOfWeekValue = "TUE";
break;
case 3:
newDayOfWeekValue = "WED";
break;
case 4:
newDayOfWeekValue = "THU";
break;
case 5:
newDayOfWeekValue = "FRI";
break;
case 6:
newDayOfWeekValue = "SAT";
break;
default:
badRequest("Schedule %s is invalid, day of week (%s) is not 0-7", schedule, dayOfWeekValue);
break;
}
return newDayOfWeekValue;
}
public void checkResourcesForBounce(SingularityRequest request, boolean isIncremental) {
SlavePlacement placement = request.getSlavePlacement().or(defaultSlavePlacement);
if (placement != SlavePlacement.GREEDY && placement != SlavePlacement.OPTIMISTIC) {
int currentActiveSlaveCount = slaveManager.getNumObjectsAtState(MachineState.ACTIVE);
int requiredSlaveCount = isIncremental ? request.getInstancesSafe() + 1 : request.getInstancesSafe() * 2;
checkBadRequest(currentActiveSlaveCount >= requiredSlaveCount, "Not enough active slaves to successfully scale request %s to %s instances (minimum required: %s, current: %s).", request.getId(), request.getInstancesSafe(), requiredSlaveCount, currentActiveSlaveCount);
}
}
public void checkScale(SingularityRequest request, Optional previousScale) {
SlavePlacement placement = request.getSlavePlacement().or(defaultSlavePlacement);
if (placement != SlavePlacement.GREEDY && placement != SlavePlacement.OPTIMISTIC) {
int currentActiveSlaveCount = slaveManager.getNumObjectsAtState(MachineState.ACTIVE);
int requiredSlaveCount = request.getInstancesSafe();
if (previousScale.isPresent() && placement == SlavePlacement.SEPARATE_BY_REQUEST) {
requiredSlaveCount += previousScale.get();
}
checkBadRequest(currentActiveSlaveCount >= requiredSlaveCount, "Not enough active slaves to successfully complete a bounce of request %s (minimum required: %s, current: %s). Consider deploying, or changing the slave placement strategy instead.", request.getId(), requiredSlaveCount, currentActiveSlaveCount);
}
}
public void validateExpiringMachineStateChange(Optional maybeChangeRequest, MachineState currentState, Optional currentExpiringObject) {
if (!maybeChangeRequest.isPresent() || !maybeChangeRequest.get().getDurationMillis().isPresent()) {
return;
}
SingularityMachineChangeRequest changeRequest = maybeChangeRequest.get();
checkBadRequest(changeRequest.getRevertToState().isPresent(), "Must include a machine state to revert to for an expiring machine state change");
MachineState newState = changeRequest.getRevertToState().get();
checkConflict(!currentExpiringObject.isPresent(), "A current expiring object already exists, delete it first");
checkBadRequest(!(newState == MachineState.STARTING_DECOMMISSION && currentState.isDecommissioning()), "Cannot start decommission when it has already been started");
checkBadRequest(!(((newState == MachineState.DECOMMISSIONING) || (newState == MachineState.DECOMMISSIONED)) && (currentState == MachineState.FROZEN)), "Cannot transition from FROZEN to DECOMMISSIONING or DECOMMISSIONED");
checkBadRequest(!(((newState == MachineState.DECOMMISSIONING) || (newState == MachineState.DECOMMISSIONED)) && (currentState == MachineState.ACTIVE)), "Cannot transition from ACTIVE to DECOMMISSIONING or DECOMMISSIONED");
checkBadRequest(!(newState == MachineState.FROZEN && currentState.isDecommissioning()), "Cannot transition from a decommissioning state to FROZEN");
List systemOnlyStateTransitions = ImmutableList.of(MachineState.DEAD, MachineState.MISSING_ON_STARTUP, MachineState.DECOMMISSIONING);
checkBadRequest(!systemOnlyStateTransitions.contains(newState), "States {} are reserved for system usage, you cannot manually transition to {}", systemOnlyStateTransitions, newState);
checkBadRequest(!(newState == MachineState.DECOMMISSIONED && !changeRequest.isKillTasksOnDecommissionTimeout()), "Must specify that all tasks on slave get killed if transitioning to DECOMMISSIONED state");
}
public void checkActionEnabled(SingularityAction action) {
checkConflict(!disasterManager.isDisabled(action), disasterManager.getDisabledAction(action).getMessage());
}
private boolean isValidInteger(String strValue) {
try {
Integer.parseInt(strValue);
return true;
} catch (NumberFormatException nfe) {
return false;
}
}
public void checkUserId(String userId) {
checkBadRequest(!Strings.isNullOrEmpty(userId), "User ID must be present and non-null");
checkBadRequest(!(userId.length() > maxUserIdSize), "User ID cannot be more than %s characters, it was %s", maxUserIdSize, userId.length());
}
public void checkStarredRequests(Set starredRequests) {
checkBadRequest(!(starredRequests.size() > MAX_STARRED_REQUESTS), "Cannot have more than %s starred requests", MAX_STARRED_REQUESTS);
}
public SingularityPriorityFreeze checkSingularityPriorityFreeze(SingularityPriorityFreeze priorityFreeze) {
checkBadRequest(priorityFreeze.getMinimumPriorityLevel() > 0 && priorityFreeze.getMinimumPriorityLevel() <= 1, "minimumPriorityLevel %s is invalid, must be greater than 0 and less than or equal to 1.", priorityFreeze.getMinimumPriorityLevel());
// auto-generate actionId if not set
if (!priorityFreeze.getActionId().isPresent()) {
priorityFreeze = new SingularityPriorityFreeze(priorityFreeze.getMinimumPriorityLevel(), priorityFreeze.isKillTasks(), priorityFreeze.getMessage(), Optional.of(UUID.randomUUID().toString()));
}
return priorityFreeze;
}
public void checkRequestForPriorityFreeze(SingularityRequest request) {
final Optional maybePriorityFreeze = priorityManager.getActivePriorityFreeze();
if (!maybePriorityFreeze.isPresent()) {
return;
}
final double taskPriorityLevel = priorityManager.getTaskPriorityLevelForRequest(request);
checkBadRequest(taskPriorityLevel >= maybePriorityFreeze.get().getPriorityFreeze().getMinimumPriorityLevel(), "Priority level of request %s (%s) is lower than active priority freeze (%s)",
request.getId(), taskPriorityLevel, maybePriorityFreeze.get().getPriorityFreeze().getMinimumPriorityLevel());
}
public SingularityBounceRequest checkBounceRequest(SingularityBounceRequest defaultBounceRequest) {
if (defaultBounceRequest.getDurationMillis().isPresent()) {
return defaultBounceRequest;
}
final long durationMillis = TimeUnit.MINUTES.toMillis(defaultBounceExpirationMinutes);
return defaultBounceRequest
.toBuilder()
.setDurationMillis(Optional.of(durationMillis))
.build();
}
public void checkRequestGroup(SingularityRequestGroup requestGroup) {
checkBadRequest(requestGroup.getId() != null && !StringUtils.containsAny(requestGroup.getId(), JOINER.join(REQUEST_ID_ILLEGAL_CHARACTERS)), "Id can not be null or contain any of the following characters: %s", REQUEST_ID_ILLEGAL_CHARACTERS);
checkBadRequest(requestGroup.getId().length() < maxRequestIdSize, "Id must be less than %s characters, it is %s (%s)", maxRequestIdSize, requestGroup.getId().length(), requestGroup.getId());
checkBadRequest(requestGroup.getRequestIds() != null, "requestIds cannot be null");
}
public void checkValidShellCommand(final SingularityShellCommand shellCommand) {
Optional commandDescriptor = Iterables.tryFind(uiConfiguration.getShellCommands(), new Predicate() {
@Override
public boolean apply(ShellCommandDescriptor input) {
return input.getName().equals(shellCommand.getName());
}
});
if (!commandDescriptor.isPresent()) {
throw WebExceptions.badRequest("Shell command %s not in %s", shellCommand.getName(), uiConfiguration.getShellCommands());
}
Set options = Sets.newHashSetWithExpectedSize(commandDescriptor.get().getOptions().size());
for (ShellCommandOptionDescriptor option : commandDescriptor.get().getOptions()) {
options.add(option.getName());
}
if (shellCommand.getOptions().isPresent()) {
for (String option : shellCommand.getOptions().get()) {
if (!options.contains(option)) {
throw WebExceptions.badRequest("Shell command %s does not have option %s (%s)", shellCommand.getName(), option, options);
}
}
}
}
}
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