So building on previous reply, to fix:
1. in your AIO share-docker/src/main/docker add this file context.xml
<?xml version="1.0" encoding="UTF-8"?>
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
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.
<!-- The contents of this file will be loaded for each web application -->
<Resources cacheMaxSize="51200" cachingAllowed="true"/>
<!-- Default set of monitored resources. If one of these changes, the -->
<!-- web application will be reloaded. -->
<!-- Uncomment this to disable session persistence across Tomcat restarts -->
<Manager pathname="" />
2. add this line to your Dockerfile: (at the end is fine)
COPY context.xml $TOMCAT_DIR/conf
run a build_start and those warnings go away.