I have the same problem in HA supervised installation (Debian) with addon Duckdns ( HA fails to load with http integration).
The internet accesss is based on 4G router with public dynamic IP
The CONFIGURATION/SERVER CONTROLS/CONFIGURATION VALIDATION shows :
validate your configuration if you recently made some changes to your configuration and want to make sure that it is all valid
Configuration invalid
Component error: ssl_key - Integration 'ssl_key' not found.
Component error: ssl_certificate - Integration 'ssl_certificate' not found.
yes i had the same issue, maybe you are lucky and your internet provider has thought about this and you can go on their website and try to find a public ip request form, otherwise you can email them and ask about it. They will ask for your MAC number and a ip numper, both you can find in your router settings.
I had this issue and they got me a public ip in a couple days and after that duckdns worked like a charm.
but when I click on the link …nothing because i’m connect to my wifi router.
if I go to this adress on my phone on LTE it’s ok , maybe the redirection not working ?
I do not use “base_url” has been depreciated in HA 0.110 .
HTTP - base_url is deprecated and replaced by an internal_url and external_url core configuration setting "in the UI ". - (@frenck - #35224) (basic config docs) (http docs)
Concerning the guides , for the moment I use the HA doc for Duckdns addon as it should be sufficient for DDNS and LetsEncrypt certificate
About
Duck DNS is a free service that points a DNS (sub-domains of duckdns.org) to an IP of your choice. This add-on includes support for Let’s Encrypt and automatically creates and renews your certificates. You need to sign up for a Duck DNS account before using this add-on.
Remote access is working using http + 2FA for the moment with Duckdns but I do not want to switch to Duckdns+LetEnscrypt + NGINX before basic configuration with Duckdns works (https)