.settings.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
  ~ Copyright 2015-2019 the original author or authors.
  ~
  ~ 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.
  -->

<settings>
  <servers>
	<server>
	  <id>snapshots</id>
	  <username>${env.CI_DEPLOY_USERNAME}</username>
	  <password>${env.CI_DEPLOY_PASSWORD}</password>
	</server>
  </servers>
</settings>