chore: add config file for standalone mode in examples

example/apisix_conf/config-standalone.yaml

@@ -0,0 +1,25 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You 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.
+#
+
+apisix:
+  node_listen: 9080              # APISIX listening port
+  enable_ipv6: false
+
+deployment:
+  role: data_plane
+  role_data_plane:
+    config_provider: yaml

example/docker-compose-standalone.yml

@@ -23,6 +23,7 @@ services:
     restart: always
     volumes:
       - ./apisix_conf/apisix-standalone.yaml:/usr/local/apisix/conf/apisix.yaml:ro
+      - ./apisix_conf/config-standalone.yaml:/usr/local/apisix/conf/config.yaml:ro
     environment:
       - APISIX_STAND_ALONE=true
     ports: