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Simple TLS certificates in WildFly 18

It's just 2 weeks when WildFly 18 was released. It includes nice improvements in TLS certificates handling through ACME protocol (Automatic Certificate Management Environment), it greatly simplifies obtaining valid HTTPS certificates.

There was already a support for the Let's Encrypt CA in WildFly 14 as Farah Juma described in her blog post last year.

New WildFly version allows using other CA-s with ACME protocol support.
It also adds new switch --lets-encrypt to interactive mode of security enable-ssl-http-server JBoss CLI commands. Let's try it.

Before we jump on WildFly configuration, let's just mention the HTTPs can be used even in the default configuration and a self-signed certificate is generated on the fly. Nevertheless, it's not secure and you should not use it for any other purpose than testing.

Use Let's Encrypt signed certificate for HTTPs application interfaceStart WildFly on a machine with the public IP address. Run it on the default HTTP(80) and…