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These are the properties in the Maven Local Settings file which is usually stored in ~/.m2/settings.xml. This file contains user-specific configuration such as the location of the local repository and any servers, profiles, and mirrors configured by a specific user. These properties should not be redefined in CPS, unless we need to override the values. Like:
${onap.nexus.dockerregistry.release}: The default onap docker registry for releasing artifacts${docker.pull.registry}: The default docker pull registry${docker.push.registry}: The default docker push registry${onap.nexus.url}: The default onap nexus url
A full reference for the ONAP Settings file and corresponding properties is available here. https://github.com/onap/oparent/blob/master/settings.xml
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