DBZ-8101 Ability to disable API

debezium-server-core/src/main/java/io/debezium/server/DebeziumServerConfig.java

@@ -0,0 +1,19 @@
+/*
+ * Copyright Debezium Authors.
+ *
+ * Licensed under the Apache Software License version 2.0, available at http://www.apache.org/licenses/LICENSE-2.0
+ */
+package io.debezium.server;
+
+import io.smallrye.config.ConfigMapping;
+import io.smallrye.config.WithDefault;
+
+@ConfigMapping(prefix = "debezium")
+public interface DebeziumServerConfig {
+    Api api();
+
+    interface Api {
+        @WithDefault("true")
+        boolean enabled();
+    }
+}

debezium-server-core/src/main/java/io/debezium/server/rest/signal/SignalResource.java

@@ -13,17 +13,21 @@
 
 import io.debezium.engine.DebeziumEngine;
 import io.debezium.server.DebeziumServer;
+import io.debezium.server.DebeziumServerConfig;
 
 @Path("/signals")
 public class SignalResource {
 
+    @Inject
+    DebeziumServerConfig config;
+
     @Inject
     DebeziumServer server;
 
     @POST
     public Response post(@NotNull DSSignal dsSignal) {
         var signaler = server.getSignaler();
-        if (signaler == null) {
+        if (signaler == null || !config.api().enabled()) {
             return Response.status(Response.Status.SERVICE_UNAVAILABLE).build();
         }
 

debezium-server-core/src/main/resources/application.properties

@@ -0,0 +1,2 @@
+# TODO: this should be eventually removed when entire config is mapped
+smallrye.config.mapping.validate-unknown=false