From Observer GigaFlow Support | VIAVI Solutions Inc.
Generating a new keystore and self signed cert in /opt/ros/resources/prepos/roskeystore_new.jks
cd /opt/ros/resources/prepos/
keytool -genkey -keyalg RSA -alias selfsigned -keystore roskeystore_new.jks -storepass password -validity 360 -keysize 2048
Importing a new key into the keystore