Check network on start and reset db

services/chainstorage/src/main/java/tech/pegasys/teku/services/chainstorage/EphemeryDatabaseReset.java

@@ -0,0 +1,74 @@
+/*
+ * Copyright Consensys Software Inc., 2024
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
+ * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations under the License.
+ */
+
+package tech.pegasys.teku.services.chainstorage;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import tech.pegasys.teku.infrastructure.exceptions.InvalidConfigurationException;
+import tech.pegasys.teku.service.serviceutils.ServiceConfig;
+import tech.pegasys.teku.storage.server.Database;
+import tech.pegasys.teku.storage.server.VersionedDatabaseFactory;
+
+public class EphemeryDatabaseReset {
+
+  /** This method is called only on Ephemery network when reset is due. */
+  Database resetDatabaseAndCreate(
+      final ServiceConfig serviceConfig, final VersionedDatabaseFactory dbFactory) {
+    try {
+      final Path beaconDataDir = serviceConfig.getDataDirLayout().getBeaconDataDirectory();
+      final Path dbDataDir = beaconDataDir.resolve("db");
+      final Path networkFile = beaconDataDir.resolve("network.yml");
+      final Path validatorDataDir = serviceConfig.getDataDirLayout().getValidatorDataDirectory();
+      final Path slashProtectionDir;
+      if (validatorDataDir.endsWith("slashprotection")) {
+        slashProtectionDir = validatorDataDir;
+      } else {
+        slashProtectionDir = validatorDataDir.resolve("slashprotection");
+      }
+      deleteDirectoryRecursively(dbDataDir);
+      deleteDirectoryRecursively(networkFile);
+      deleteDirectoryRecursively(slashProtectionDir);
+      return dbFactory.createDatabase();
+    } catch (final Exception ex) {
+      throw new InvalidConfigurationException(
+          "The existing ephemery database was old, and was unable to reset it.", ex);
+    }
+  }
+
+  void deleteDirectoryRecursively(final Path path) throws IOException {
+    if (Files.exists(path)) {
+      if (Files.isDirectory(path)) {
+        try (var stream = Files.walk(path)) {
+          stream
+              .sorted((o1, o2) -> o2.compareTo(o1))
+              .forEach(
+                  p -> {
+                    try {
+                      Files.delete(p);
+                    } catch (IOException e) {
+                      throw new RuntimeException("Failed to delete file/directory: " + p, e);
+                    }
+                  });
+        }
+      } else {
+        try {
+          Files.delete(path);
+        } catch (IOException e) {
+          throw new RuntimeException("Failed to delete file: " + path, e);
+        }
+      }
+    }
+  }
+}

services/chainstorage/src/main/java/tech/pegasys/teku/services/chainstorage/StorageService.java

@@ -42,6 +42,7 @@
 import tech.pegasys.teku.storage.server.RetryingStorageUpdateChannel;
 import tech.pegasys.teku.storage.server.StorageConfiguration;
 import tech.pegasys.teku.storage.server.VersionedDatabaseFactory;
+import tech.pegasys.teku.storage.server.network.EphemeryException;
 import tech.pegasys.teku.storage.server.pruner.BlobSidecarPruner;
 import tech.pegasys.teku.storage.server.pruner.BlockPruner;
 import tech.pegasys.teku.storage.server.pruner.StatePruner;
@@ -85,7 +86,14 @@ protected SafeFuture<?> doStart() {
                       serviceConfig.getMetricsSystem(),
                       serviceConfig.getDataDirLayout().getBeaconDataDirectory(),
                       config);
-              database = dbFactory.createDatabase();
+              try {
+                database = dbFactory.createDatabase();
+              } catch (EphemeryException e) {
+                final EphemeryDatabaseReset ephemeryDatabaseReset = new EphemeryDatabaseReset();
+                LOG.warn(
+                    "Ephemery network deposit contract id has updated, resetting the stored database and slashing protection data.");
+                database = ephemeryDatabaseReset.resetDatabaseAndCreate(serviceConfig, dbFactory);
+              }
 
               final SettableLabelledGauge pruningTimingsLabelledGauge =
                   SettableLabelledGauge.create(

services/chainstorage/src/test/java/tech/pegasys/teku/services/chainstorage/EphemeryDatabaseResetTest.java

@@ -0,0 +1,135 @@
+/*
+ * Copyright Consensys Software Inc., 2024
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
+ * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations under the License.
+ */
+
+package tech.pegasys.teku.services.chainstorage;
+
+import static java.nio.file.Files.createTempDirectory;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.Mockito.doNothing;
+import static org.mockito.Mockito.doThrow;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.verifyNoMoreInteractions;
+import static org.mockito.Mockito.when;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import tech.pegasys.teku.infrastructure.exceptions.InvalidConfigurationException;
+import tech.pegasys.teku.service.serviceutils.ServiceConfig;
+import tech.pegasys.teku.service.serviceutils.layout.DataDirLayout;
+import tech.pegasys.teku.storage.server.Database;
+import tech.pegasys.teku.storage.server.VersionedDatabaseFactory;
+
+class EphemeryDatabaseResetTest {
+
+  @Mock private ServiceConfig serviceConfig;
+
+  @Mock private VersionedDatabaseFactory dbFactory;
+
+  @Mock private DataDirLayout dataDirLayout;
+  private Path beaconDataDir;
+  private Path dbDataDir;
+  private Path resolvedSlashProtectionDir;
+  private Path networkFilePath;
+  @Mock private Database database;
+
+  @Mock private EphemeryDatabaseReset ephemeryDatabaseReset;
+
+  @BeforeEach
+  void setUp() throws IOException {
+    MockitoAnnotations.openMocks(this);
+    ephemeryDatabaseReset = spy(new EphemeryDatabaseReset());
+    beaconDataDir = createTempDirectory("beacon");
+    dbDataDir = beaconDataDir.resolve("db");
+    Files.createDirectory(dbDataDir);
+    Path networkFile = beaconDataDir.resolve("network.yml");
+    Files.createFile(networkFile);
+    networkFilePath = networkFile;
+
+    final Path validatorDataDir = createTempDirectory("validator");
+    resolvedSlashProtectionDir = validatorDataDir.resolve("slashprotection");
+
+    when(serviceConfig.getDataDirLayout()).thenReturn(dataDirLayout);
+    when(dataDirLayout.getBeaconDataDirectory()).thenReturn(beaconDataDir);
+    when(dataDirLayout.getValidatorDataDirectory()).thenReturn(validatorDataDir);
+    when(dataDirLayout.getValidatorDataDirectory().resolve("slashprotection"))
+        .thenReturn(resolvedSlashProtectionDir);
+  }
+
+  @Test
+  void shouldResetSpecificDirectoriesAndCreateDatabase() throws IOException {
+    final Path kvStoreDir = beaconDataDir.resolve("kvstore");
+    Files.createDirectory(kvStoreDir);
+    final Path dbVersion = beaconDataDir.resolve("db.version");
+    Files.createFile(dbVersion);
+
+    when(dbFactory.createDatabase()).thenReturn(database);
+
+    final Database result = ephemeryDatabaseReset.resetDatabaseAndCreate(serviceConfig, dbFactory);
+    verify(ephemeryDatabaseReset).deleteDirectoryRecursively(dbDataDir);
+    verify(ephemeryDatabaseReset).deleteDirectoryRecursively(networkFilePath);
+    verify(ephemeryDatabaseReset).deleteDirectoryRecursively(resolvedSlashProtectionDir);
+
+    verify(dbFactory).createDatabase();
+    verifyNoMoreInteractions(dbFactory);
+
+    assertTrue(Files.exists(kvStoreDir));
+    assertTrue(Files.exists(dbVersion));
+    assertEquals(database, result);
+  }
+
+  @Test
+  void shouldThrowInvalidConfigurationExceptionWhenDirectoryDeletionFails() throws IOException {
+    doThrow(new IOException("Failed to delete directory"))
+        .when(ephemeryDatabaseReset)
+        .deleteDirectoryRecursively(dbDataDir);
+    final InvalidConfigurationException exception =
+        assertThrows(
+            InvalidConfigurationException.class,
+            () -> {
+              ephemeryDatabaseReset.resetDatabaseAndCreate(serviceConfig, dbFactory);
+            });
+    assertEquals(
+        "The existing ephemery database was old, and was unable to reset it.",
+        exception.getMessage());
+    verify(dbFactory, never()).createDatabase();
+    verify(ephemeryDatabaseReset, never()).deleteDirectoryRecursively(resolvedSlashProtectionDir);
+  }
+
+  @Test
+  void shouldThrowInvalidConfigurationExceptionWhenDatabaseCreationFails() throws IOException {
+    doNothing().when(ephemeryDatabaseReset).deleteDirectoryRecursively(dbDataDir);
+    doNothing().when(ephemeryDatabaseReset).deleteDirectoryRecursively(resolvedSlashProtectionDir);
+    when(dbFactory.createDatabase()).thenThrow(new RuntimeException("Database creation failed"));
+    final InvalidConfigurationException exception =
+        assertThrows(
+            InvalidConfigurationException.class,
+            () -> {
+              ephemeryDatabaseReset.resetDatabaseAndCreate(serviceConfig, dbFactory);
+            });
+    assertEquals(
+        "The existing ephemery database was old, and was unable to reset it.",
+        exception.getMessage());
+    verify(ephemeryDatabaseReset).deleteDirectoryRecursively(dbDataDir);
+    verify(ephemeryDatabaseReset).deleteDirectoryRecursively(resolvedSlashProtectionDir);
+    verify(dbFactory).createDatabase();
+  }
+}

storage/src/main/java/tech/pegasys/teku/storage/server/VersionedDatabaseFactory.java

@@ -46,7 +46,6 @@ public class VersionedDatabaseFactory implements DatabaseFactory {
   @VisibleForTesting static final String STORAGE_MODE_PATH = "data-storage-mode.txt";
   @VisibleForTesting static final String METADATA_FILENAME = "metadata.yml";
   @VisibleForTesting static final String NETWORK_FILENAME = "network.yml";
-
   private final MetricsSystem metricsSystem;
   private final File dataDirectory;
   private final int maxKnownNodeCacheSize;

storage/src/main/java/tech/pegasys/teku/storage/server/network/DatabaseNetwork.java

@@ -45,6 +45,9 @@ public class DatabaseNetwork {
   @VisibleForTesting
   final Long depositChainId;
 
+  private static final String EPHEMERY_DEPOSIT_CONTRACT_ADDRESS =
+      "0x4242424242424242424242424242424242424242";
+
   @JsonCreator
   DatabaseNetwork(
       @JsonProperty(value = "fork_version") final String forkVersion,
@@ -84,6 +87,20 @@ public static DatabaseNetwork init(
             formatMessage(
                 "deposit contract", depositContractString, databaseNetwork.depositContract));
       }
+      if (databaseNetwork.depositChainId != null
+          && !depositContractString.equals(EPHEMERY_DEPOSIT_CONTRACT_ADDRESS)
+          && !databaseNetwork.depositChainId.equals(depositChainId)) {
+        throw DatabaseStorageException.unrecoverable(
+            formatMessage(
+                "deposit chain id",
+                String.valueOf(depositChainId),
+                String.valueOf(databaseNetwork.depositChainId)));
+      }
+      if (databaseNetwork.depositChainId != null
+          && depositContractString.equals(EPHEMERY_DEPOSIT_CONTRACT_ADDRESS)
+          && !databaseNetwork.depositChainId.equals(depositChainId)) {
+        throw new EphemeryException();
+      }
       return databaseNetwork;
     } else {
       DatabaseNetwork databaseNetwork =
@@ -93,6 +110,10 @@ public static DatabaseNetwork init(
     }
   }
 
+  public Long getDepositChainId() {
+    return depositChainId;
+  }
+
   private static String formatMessage(
       final String fieldName, final String expected, final String actual) {
     return String.format(

storage/src/main/java/tech/pegasys/teku/storage/server/network/EphemeryException.java

@@ -0,0 +1,16 @@
+/*
+ * Copyright Consensys Software Inc., 2024
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
+ * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations under the License.
+ */
+
+package tech.pegasys.teku.storage.server.network;
+
+public class EphemeryException extends RuntimeException {}