4.5. Setting Maven mirror using environmental variables or system properties

Maven uses a set of remote repositories to access the artifacts, which are currently not available in local repository. The list of repositories almost always contains Maven Central repository, but for Red Hat Fuse, it also contains Maven Red Hat repositories. In some cases where it is not possible or allowed to access different remote repositories, you can use a mechanism of Maven mirrors. A mirror replaces a particular repository URL with a different one, so all HTTP traffic when remote artifacts are being searched for can be directed to a single URL.

To set the Maven mirror, add the following section to Maven’s settings.xml:

<mirror>
      <id>all</id>
      <mirrorOf>*</mirrorOf>
      <url>http://host:port/path</url>
</mirror>

No mirror is used if the above section is not found in the settings.xml file. To specify a global mirror without providing the XML configuration, you can use either system property or environmental variables.

To set the Maven mirror using either environmental variable or system property, you can add:

To use an alternate Maven mirror url, other than the one specified by environmental variables or system property, use the following maven options when running the application: