Setup apache-archiva-2.2.4

create apache-tomcat-7.0.42/bin/setenv.sh
or
a softlink apache-tomcat-7.0.42/bin/setenv.sh to existing apache-tomcat-7.0.42/bin/env.sh file

for system properties below:

CATALINA_OPTS="-Dappserver.home=$CATALINA_HOME -Dappserver.base=$CATALINA_HOME"
export CATALINA_OPTS

Best Practice - Using a Repository Manager

https://maven.apache.org/repository-management.html