Out of box experience as a total beginner

Hello,

today I wanted to try Icinga2. Since I like hosting services using containers I didn’t bother installing Icinga using packages but headed straight here. I executed the commands from the README and tried to access the published port 5665 using my web browser. This is what I was greeted with after following the steps outlined in the README:

The "master" container logged this every time I tried to access http://localhost:5665:

[2024-03-26 08:19:50 +0000] critical/ApiListener: Client TLS handshake failed (from [::ffff:192.168.65.1]:59360): http request

After 30 minutes of wondering what was wrong, I had the idea that the container would do TLS termination itself by default. This is rather unusual as a default since most images expect you to place a reverse proxy in front of them. So I tried https://localhost:5665 and was greeted with a login dialog.

The login dialog did not accept default credentials I tried - like admin/admin. A Google search brought up the auth docs but this page does not list the default login. The https://default-password.info/icinga/icinga-web-2 page suggests to use icingaadmin/icinga - which didn't work either.

This is where I'm currently stuck.

I hope this feedback helps to improve the onboarding process for new users. I can see how as developers or long-term users of Icinga the initial setup must be obvious to you. As a new user who doesn't know the ins and outs of the system it might feel very differently.

Start by reading the README setup steps and the linked authentication documentation, then reproduce the published-port flow with the container. Done means a first-time user can determine the correct protocol and initial credentials from the repository's onboarding material and complete login without relying on external search.