Follow the steps in Section 5.3, “Creating Suitable Certificates” to create JGroups and TLS certificates.
Update your configuration to specify these certificates and the keystore password:
shell> tools/tpm configure SERVICE
\
--java-tls-keystore-path=/etc/tungsten/secure/tungsten_tls_keystore.jks \
--java-jgroups-keystore-path=/etc/tungsten/secure/tungsten_jgroups_keystore.jceks \
--java-keystore-password=mykeystorepass