Mirth Connect
Creating keystore.jks from Let's Encrypt Certificate
$ openssl pkcs12 -export -in fullchain.pem -inkey privkey.pem -out pkcs.p12 -name mirthconnect
$ keytool -importkeystore -deststorepass 81uWxplDtB -destkeypass 81uWxplDtB -destkeystore keystore.jks -srckeystore pkcs.p12 -srcstoretype PKCS12 -srcstorepass 81uWxplDtB -alias mirthconnect