0.10.7: readiness redis probe works with sentinel/cluster (use bucket.isExists, not getRedisNodes)

Author: doctorpangloss

build.gradle

@@ -24,7 +24,7 @@ dependencies {
 }
 
 allprojects {
-  project.version = '0.10.6'
+  project.version = '0.10.7'
 }
 
 subprojects {

spellsource-server/src/main/java/com/hiddenswitch/framework/Diagnostics.java

@@ -15,12 +15,9 @@
 import io.vertx.pgclient.PgBuilder;
 import io.vertx.sqlclient.Pool;
 import io.vertx.sqlclient.PoolOptions;
-import org.redisson.api.redisnode.RedisNodes;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.util.concurrent.TimeUnit;
-
 public class Diagnostics {
 	private final static Logger LOGGER = LoggerFactory.getLogger(Diagnostics.class);
 	private final static Multiset<String> MESSAGES = ConcurrentHashMultiset.create();
@@ -50,7 +47,10 @@ public static Future<Void> routes(Vertx vertx) {
 					var client = new Client(vertx);
 
 					var protos = client.unauthenticated().getConfiguration(Empty.getDefaultInstance()).eventually(client::closeFut);
-					var redis = Future.fromCompletionStage(Environment.redisson().getRedisNodes(RedisNodes.SINGLE).getInstance().pingAsync(200, TimeUnit.MILLISECONDS));
+					// Works for single-server, sentinel, cluster, and replication — issues a lightweight
+					// EXISTS against an arbitrary key. Avoids Redisson.getRedisNodes() which is typed per
+					// topology and throws on the wrong configuration.
+					var redis = Future.fromCompletionStage(Environment.redisson().getBucket("_healthz").isExistsAsync().toCompletableFuture());
 					var pgConnectOptions = Environment.pgArgs().connectionOptions();
 					var pgClient = PgBuilder.pool().using(vertx).connectingTo(pgConnectOptions).with(new PoolOptions()).build();
 					var postgres = pgClient.query("""