server:
  port: 8443
  ssl:
    key-store: ./certs/server-cert.pkcs12
    key-store-type: pkcs12
    key-store-password: <pwd>
    keyAlias: 1

2023
https://spring.io/blog/2023/06/07/securing-spring-boot-applications-with-ssl
2021
https://habr.com/ru/post/593507/