During the creation of the server.p12 file it is necessary to define a password that will be required later when using the certificate in Micronaut.

    Now modify your configuration:

    1The file created. It can also be referenced as file:/path/to/the/file
    2The password defined during the export

    With this configuration if we start Micronaut and connect to [https://localhost:8443](https://localhost:8443) we still see the warning on the browser but if we inspect the certificate we can check that it’s the one generated by Let’s Encrypt.

    Now we can connect to [https://my-domain.org:8443](https://my-domain.org:8443):

    https valid certificate