Add warnings for invalid realm order config (#51195) (#51515)

The changes are to help users prepare for migration to next major
release (v8.0.0) regarding to the break change of realm order config.

Warnings are added for when:
* A realm does not have an order config
* Multiple realms have the same order config

The warning messages are added to both deprecation API and loggings.
The main reasons for doing this are: 1) there is currently no automatic relay
between the two; 2) deprecation API is under basic and we need logging
for OSS.
This commit is contained in:
Yang Wang 2020-01-31 12:32:37 +11:00 committed by GitHub
parent 11e86b13b4
commit 77b00fc0c0
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8 changed files with 228 additions and 4 deletions

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@ -11,6 +11,7 @@ For information about how to upgrade your cluster, see <<setup-upgrade>>.
--
include::migrate_7_7.asciidoc[]
include::migrate_7_6.asciidoc[]
include::migrate_7_5.asciidoc[]
include::migrate_7_4.asciidoc[]

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@ -31,3 +31,22 @@ loggers in the `org.elasticsearch.action.*` hierarchy emitted log messages at
log noise. From 7.7 onwards the default log level for logger in this hierarchy
is now `INFO`, in line with most other loggers. If needed, you can recover the
pre-7.7 default behaviour by adjusting your <<logging>>.
[discrete]
[[breaking_77_settings_changes]]
=== Settings changes
[discrete]
[[deprecate-missing-realm-order]]
==== Authentication realm `order` will be a required config in version 8.0.0.
The `order` config will be required in version 8.0.0 for authentication realm
configuration of any type. If the `order` config is missing for a realm, the node
will fail to start.
[discrete]
[[deprecate-duplicated-realm-orders]]
==== Authentication realm `order` uniqueness will be enforced in version 8.0.0.
The `order` config of authentication realms must be unique in version 8.0.0.
If you configure more than one realm of any type with the same order, the node will fail to start.

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@ -29,10 +29,11 @@ import java.util.stream.Collectors;
public class RealmSettings {
public static final String PREFIX = "xpack.security.authc.realms.";
public static final String ORDER_SETTING_KEY = "order";
public static final Function<String, Setting.AffixSetting<Boolean>> ENABLED_SETTING = affixSetting("enabled",
key -> Setting.boolSetting(key, true, Setting.Property.NodeScope));
public static final Function<String, Setting.AffixSetting<Integer>> ORDER_SETTING = affixSetting("order",
public static final Function<String, Setting.AffixSetting<Integer>> ORDER_SETTING = affixSetting(ORDER_SETTING_KEY,
key -> Setting.intSetting(key, Integer.MAX_VALUE, Setting.Property.NodeScope));
public static String realmSettingPrefix(String type) {

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@ -43,7 +43,9 @@ public class DeprecationChecks {
static List<BiFunction<Settings, PluginsAndModules, DeprecationIssue>> NODE_SETTINGS_CHECKS =
Collections.unmodifiableList(Arrays.asList(
NodeDeprecationChecks::checkPidfile,
NodeDeprecationChecks::checkProcessors
NodeDeprecationChecks::checkProcessors,
NodeDeprecationChecks::checkMissingRealmOrders,
NodeDeprecationChecks::checkUniqueRealmOrders
));
static List<Function<IndexMetaData, DeprecationIssue>> INDEX_SETTINGS_CHECKS =

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@ -12,8 +12,13 @@ import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.util.concurrent.EsExecutors;
import org.elasticsearch.env.Environment;
import org.elasticsearch.xpack.core.deprecation.DeprecationIssue;
import org.elasticsearch.xpack.core.security.authc.RealmSettings;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;
class NodeDeprecationChecks {
@ -35,6 +40,62 @@ class NodeDeprecationChecks {
"https://www.elastic.co/guide/en/elasticsearch/reference/7.4/breaking-changes-7.4.html#deprecate-processors");
}
static DeprecationIssue checkMissingRealmOrders(final Settings settings, final PluginsAndModules pluginsAndModules) {
final Set<String> orderNotConfiguredRealms = RealmSettings.getRealmSettings(settings).entrySet()
.stream()
.filter(e -> false == e.getValue().hasValue(RealmSettings.ORDER_SETTING_KEY))
.map(e -> RealmSettings.realmSettingPrefix(e.getKey()) + RealmSettings.ORDER_SETTING_KEY)
.collect(Collectors.toSet());
if (orderNotConfiguredRealms.isEmpty()) {
return null;
}
final String details = String.format(
Locale.ROOT,
"Found realms without order config: [%s]. In next major release, node will fail to start with missing realm order.",
String.join("; ", orderNotConfiguredRealms));
return new DeprecationIssue(
DeprecationIssue.Level.CRITICAL,
"Realm order will be required in next major release.",
"https://www.elastic.co/guide/en/elasticsearch/reference/7.7/breaking-changes-7.7.html#deprecate-missing-realm-order",
details
);
}
static DeprecationIssue checkUniqueRealmOrders(final Settings settings, final PluginsAndModules pluginsAndModules) {
final Map<String, List<String>> orderToRealmSettings =
RealmSettings.getRealmSettings(settings).entrySet()
.stream()
.filter(e -> e.getValue().hasValue(RealmSettings.ORDER_SETTING_KEY))
.collect(Collectors.groupingBy(
e -> e.getValue().get(RealmSettings.ORDER_SETTING_KEY),
Collectors.mapping(e -> RealmSettings.realmSettingPrefix(e.getKey()) + RealmSettings.ORDER_SETTING_KEY,
Collectors.toList())));
Set<String> duplicateOrders = orderToRealmSettings.entrySet().stream()
.filter(entry -> entry.getValue().size() > 1)
.map(entry -> entry.getKey() + ": " + entry.getValue())
.collect(Collectors.toSet());
if (duplicateOrders.isEmpty()) {
return null;
}
final String details = String.format(
Locale.ROOT,
"Found multiple realms configured with the same order: [%s]. " +
"In next major release, node will fail to start with duplicated realm order.",
String.join("; ", duplicateOrders));
return new DeprecationIssue(
DeprecationIssue.Level.CRITICAL,
"Realm orders must be unique in next major release.",
"https://www.elastic.co/guide/en/elasticsearch/reference/7.7/breaking-changes-7.7.html#deprecate-duplicated-realm-orders",
details
);
}
private static DeprecationIssue checkDeprecatedSetting(
final Settings settings,
final PluginsAndModules pluginsAndModules,

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@ -13,12 +13,18 @@ import org.elasticsearch.common.util.concurrent.EsExecutors;
import org.elasticsearch.env.Environment;
import org.elasticsearch.test.ESTestCase;
import org.elasticsearch.xpack.core.deprecation.DeprecationIssue;
import org.elasticsearch.xpack.core.security.authc.RealmConfig;
import org.elasticsearch.xpack.core.security.authc.RealmSettings;
import java.util.Collections;
import java.util.List;
import java.util.Locale;
import static org.hamcrest.Matchers.contains;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.empty;
import static org.hamcrest.Matchers.not;
import static org.hamcrest.Matchers.startsWith;
public class NodeDeprecationChecksTests extends ESTestCase {
@ -60,4 +66,81 @@ public class NodeDeprecationChecksTests extends ESTestCase {
assertSettingDeprecationsAndWarnings(new Setting<?>[]{EsExecutors.PROCESSORS_SETTING});
}
public void testCheckMissingRealmOrders() {
final RealmConfig.RealmIdentifier invalidRealm =
new RealmConfig.RealmIdentifier(randomAlphaOfLengthBetween(4, 12), randomAlphaOfLengthBetween(4, 12));
final RealmConfig.RealmIdentifier validRealm =
new RealmConfig.RealmIdentifier(randomAlphaOfLengthBetween(4, 12), randomAlphaOfLengthBetween(4, 12));
final Settings settings =
Settings.builder()
.put("xpack.security.authc.realms." + invalidRealm.getType() + "." + invalidRealm.getName() + ".enabled", "true")
.put("xpack.security.authc.realms." + validRealm.getType() + "." + validRealm.getName() + ".order", randomInt())
.build();
final PluginsAndModules pluginsAndModules = new PluginsAndModules(Collections.emptyList(), Collections.emptyList());
final List<DeprecationIssue> deprecationIssues =
DeprecationChecks.filterChecks(DeprecationChecks.NODE_SETTINGS_CHECKS, c -> c.apply(settings, pluginsAndModules));
assertEquals(1, deprecationIssues.size());
assertEquals(new DeprecationIssue(
DeprecationIssue.Level.CRITICAL,
"Realm order will be required in next major release.",
"https://www.elastic.co/guide/en/elasticsearch/reference/7.7/breaking-changes-7.7.html#deprecate-missing-realm-order",
String.format(
Locale.ROOT,
"Found realms without order config: [%s]. In next major release, node will fail to start with missing realm order.",
RealmSettings.realmSettingPrefix(invalidRealm) + RealmSettings.ORDER_SETTING_KEY
)
), deprecationIssues.get(0));
}
public void testCheckUniqueRealmOrders() {
final int order = randomInt(9999);
final RealmConfig.RealmIdentifier invalidRealm1 =
new RealmConfig.RealmIdentifier(randomAlphaOfLengthBetween(4, 12), randomAlphaOfLengthBetween(4, 12));
final RealmConfig.RealmIdentifier invalidRealm2 =
new RealmConfig.RealmIdentifier(randomAlphaOfLengthBetween(4, 12), randomAlphaOfLengthBetween(4, 12));
final RealmConfig.RealmIdentifier validRealm =
new RealmConfig.RealmIdentifier(randomAlphaOfLengthBetween(4, 12), randomAlphaOfLengthBetween(4, 12));
final Settings settings = Settings.builder()
.put("xpack.security.authc.realms."
+ invalidRealm1.getType() + "." + invalidRealm1.getName() + ".order", order)
.put("xpack.security.authc.realms."
+ invalidRealm2.getType() + "." + invalidRealm2.getName() + ".order", order)
.put("xpack.security.authc.realms."
+ validRealm.getType() + "." + validRealm.getName() + ".order", order + 1)
.build();
final PluginsAndModules pluginsAndModules = new PluginsAndModules(Collections.emptyList(), Collections.emptyList());
final List<DeprecationIssue> deprecationIssues =
DeprecationChecks.filterChecks(DeprecationChecks.NODE_SETTINGS_CHECKS, c -> c.apply(settings, pluginsAndModules));
assertEquals(1, deprecationIssues.size());
assertEquals(DeprecationIssue.Level.CRITICAL, deprecationIssues.get(0).getLevel());
assertEquals(
"https://www.elastic.co/guide/en/elasticsearch/reference/7.7/breaking-changes-7.7.html#deprecate-duplicated-realm-orders",
deprecationIssues.get(0).getUrl());
assertEquals("Realm orders must be unique in next major release.", deprecationIssues.get(0).getMessage());
assertThat(deprecationIssues.get(0).getDetails(), startsWith("Found multiple realms configured with the same order:"));
assertThat(deprecationIssues.get(0).getDetails(), containsString(invalidRealm1.getType() + "." + invalidRealm1.getName()));
assertThat(deprecationIssues.get(0).getDetails(), containsString(invalidRealm2.getType() + "." + invalidRealm2.getName()));
assertThat(deprecationIssues.get(0).getDetails(), not(containsString(validRealm.getType() + "." + validRealm.getName())));
}
public void testCorrectRealmOrders() {
final int order = randomInt(9999);
final Settings settings = Settings.builder()
.put("xpack.security.authc.realms."
+ randomAlphaOfLengthBetween(4, 12) + "." + randomAlphaOfLengthBetween(4, 12) + ".order", order)
.put("xpack.security.authc.realms."
+ randomAlphaOfLengthBetween(4, 12) + "." + randomAlphaOfLengthBetween(4, 12) + ".order", order + 1)
.build();
final PluginsAndModules pluginsAndModules = new PluginsAndModules(Collections.emptyList(), Collections.emptyList());
final List<DeprecationIssue> deprecationIssues =
DeprecationChecks.filterChecks(DeprecationChecks.NODE_SETTINGS_CHECKS, c -> c.apply(settings, pluginsAndModules));
assertEquals(0, deprecationIssues.size());
}
}

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@ -10,6 +10,7 @@ import org.apache.logging.log4j.Logger;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.collect.MapBuilder;
import org.elasticsearch.common.logging.DeprecationLogger;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.util.concurrent.CountDown;
import org.elasticsearch.common.util.concurrent.ThreadContext;
@ -34,6 +35,7 @@ import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.TreeSet;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.stream.Collectors;
import java.util.stream.Stream;
@ -45,6 +47,7 @@ import java.util.stream.StreamSupport;
public class Realms implements Iterable<Realm> {
private static final Logger logger = LogManager.getLogger(Realms.class);
private static final DeprecationLogger deprecationLogger = new DeprecationLogger(logger);
private final Settings settings;
private final Environment env;
@ -186,7 +189,16 @@ public class Realms implements Iterable<Realm> {
List<Realm> realms = new ArrayList<>();
List<String> kerberosRealmNames = new ArrayList<>();
Map<String, Set<String>> nameToRealmIdentifier = new HashMap<>();
for (RealmConfig.RealmIdentifier identifier: realmsSettings.keySet()) {
Set<String> missingOrderRealmSettingKeys = new TreeSet<>();
Map<String, Set<String>> orderToRealmOrderSettingKeys = new HashMap<>();
for (final Map.Entry<RealmConfig.RealmIdentifier, Settings> entry: realmsSettings.entrySet()) {
final RealmConfig.RealmIdentifier identifier = entry.getKey();
if (false == entry.getValue().hasValue(RealmSettings.ORDER_SETTING_KEY)) {
missingOrderRealmSettingKeys.add(RealmSettings.getFullSettingKey(identifier, RealmSettings.ORDER_SETTING));
} else {
orderToRealmOrderSettingKeys.computeIfAbsent(entry.getValue().get(RealmSettings.ORDER_SETTING_KEY), k -> new TreeSet<>())
.add(RealmSettings.getFullSettingKey(identifier, RealmSettings.ORDER_SETTING));
}
Realm.Factory factory = factories.get(identifier.getType());
if (factory == null) {
throw new IllegalArgumentException("unknown realm type [" + identifier.getType() + "] for realm [" + identifier + "]");
@ -236,6 +248,9 @@ public class Realms implements Iterable<Realm> {
if (Strings.hasText(duplicateRealms)) {
throw new IllegalArgumentException("Found multiple realms configured with the same name: " + duplicateRealms + "");
}
logDeprecationIfFound(missingOrderRealmSettingKeys, orderToRealmOrderSettingKeys);
return realms;
}
@ -354,4 +369,24 @@ public class Realms implements Iterable<Realm> {
}
}
private void logDeprecationIfFound(Set<String> missingOrderRealmSettingKeys, Map<String, Set<String>> orderToRealmOrderSettingKeys) {
if (missingOrderRealmSettingKeys.size() > 0) {
deprecationLogger.deprecated("Found realms without order config: [{}]. " +
"In next major release, node will fail to start with missing realm order.",
String.join("; ", missingOrderRealmSettingKeys)
);
}
final List<String> duplicatedRealmOrderSettingKeys = orderToRealmOrderSettingKeys.entrySet()
.stream()
.filter(e -> e.getValue().size() > 1)
.map(e -> e.getKey() + ": " + String.join(",", e.getValue()))
.sorted()
.collect(Collectors.toList());
if (false == duplicatedRealmOrderSettingKeys.isEmpty()) {
deprecationLogger.deprecated("Found multiple realms configured with the same order: [{}]. " +
"In next major release, node will fail to start with duplicated realm order.",
String.join("; ", duplicatedRealmOrderSettingKeys));
}
}
}

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@ -37,6 +37,7 @@ import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.TreeMap;
import java.util.stream.Collectors;
import static org.hamcrest.Matchers.contains;
import static org.hamcrest.Matchers.containsString;
@ -65,7 +66,7 @@ public class RealmsTests extends ESTestCase {
factories.put(FileRealmSettings.TYPE, config -> new DummyRealm(FileRealmSettings.TYPE, config));
factories.put(NativeRealmSettings.TYPE, config -> new DummyRealm(NativeRealmSettings.TYPE, config));
factories.put(KerberosRealmSettings.TYPE, config -> new DummyRealm(KerberosRealmSettings.TYPE, config));
randomRealmTypesCount = randomIntBetween(1, 5);
randomRealmTypesCount = randomIntBetween(2, 5);
for (int i = 0; i < randomRealmTypesCount; i++) {
String name = "type_" + i;
factories.put(name, config -> new DummyRealm(name, config));
@ -154,6 +155,13 @@ public class RealmsTests extends ESTestCase {
assertThat(realms.getUnlicensedRealms(), empty());
assertThat(realms.getUnlicensedRealms(), sameInstance(realms.getUnlicensedRealms()));
assertWarnings("Found multiple realms configured with the same order: [1: "
+ nameToRealmId.entrySet().stream()
.map(e -> "xpack.security.authc.realms.type_" + e.getValue() + "." + e.getKey() + ".order")
.sorted().collect(Collectors.joining(","))
+ "]. "
+ "In next major release, node will fail to start with duplicated realm order.");
}
public void testWithSettingsWithMultipleInternalRealmsOfSameType() throws Exception {
@ -614,6 +622,20 @@ public class RealmsTests extends ESTestCase {
"multiple realms [realm_1, realm_2] configured of type [kerberos], [kerberos] can only have one such realm configured")));
}
public void testWarningForMissingRealmOrder() throws Exception {
final int realmTypeId = randomIntBetween(0, randomRealmTypesCount - 1);
final String realmName = randomAlphaOfLengthBetween(4, 12);
final Settings settings = Settings.builder()
.put("path.home", createTempDir())
.put("xpack.security.authc.realms.type_" + realmTypeId + ".realm_" + realmName + ".enabled", true)
.build();
new Realms(settings, TestEnvironment.newEnvironment(settings), factories, licenseState, threadContext, reservedRealm);
assertWarnings("Found realms without order config: [xpack.security.authc.realms.type_"
+ realmTypeId + ".realm_" + realmName + ".order]. "
+ "In next major release, node will fail to start with missing realm order.");
}
static class DummyRealm extends Realm {
DummyRealm(String type, RealmConfig config) {