core-it-suite/src/test/resources/mng-3599-mk2/settings-template.xml

<settings>
  <mirrors>
    <mirror>
      <id>central</id>
      <url>@protocol@://www.example.com/</url>
      <mirrorOf>*</mirrorOf>
    </mirror>
  </mirrors>
  <proxies>
    <proxy>
      <id>http-proxy</id>
      <protocol>http</protocol>
      <host>localhost</host>
      <port>@port@</port>
    </proxy>
  </proxies>
</settings>