How to use the certificate for Tomcat

Hi everybody!
Thanks a lot for all yours posts.
I’m new here and i’m tryin’ to figure out how to create keystore from existing certificate chain.
I already have private key and certificate for root, intermediate and server.
-ca.key.pem
-ca.cert.pem
-intermediate.key.pem
-intermediate.cert.pem
-www.mydomain.cert.pem
-www.mydomain.key.pem
I have also a file named ca-chain.cert.pem which contain ca and intermediate certificates and maintain their chain.
So i am wondering what your “full chain” contain and how i can create my keystore with the certificate chain, and then activate rtmps and https on my red5 server
thanks