Use properties:
-Dhttps.proxyHost=proxy.example.com -Dhttps.proxyPort=8080
See Service customizations on how to set.
When using container set JAVA_OPTIONS using JAVA_OPTS=-Dhttps.proxyPort=8080 -Dhttps.proxyHost=proxy.example.com in environment settings.
This will only affect Management Center not underlying service
