Please clarify SSL without duckdns

Dear friends,
my RPi4 running HA pre-existed running an NGINX web server for other applications and has a working valid let’s encrypt SSL certificate and therefore I can connect to in with https from the internet. I also have a “real” DNS domain pointing to it.

Today as I tried to install the Google Cloud backup addon it failed since my HA installation does not use SSL.

I am only fiinding Let’sEncrypt+DuckDNS tutorials but don’t understand how to modify my HA configuration to use the host RPi certs. any help please?

Just to clatify here are the cert.pem files I see on my system. thank you

bob@rpibuster:~/rtorrent $ sudo find / -name cert.pem
/etc/letsencrypt/live/rpi4.ralexander.it/cert.pem
/var/lib/docker/overlay2/80c38a4561fdbece22e33756b3e4255a57bd99d95fe71fa4bbf52abbdd0229f0/diff/etc/ssl/cert.pem
/var/lib/docker/overlay2/342b09d4e123e63656b5d641f4ec8362e83001a310f3f2843a20c58358545882/diff/usr/local/lib/python3.7/site-packages/acme/testdata/cert.pem
/var/lib/docker/overlay2/342b09d4e123e63656b5d641f4ec8362e83001a310f3f2843a20c58358545882/diff/usr/local/lib/python3.7/site-packages/josepy/testdata/cert.pem
/var/lib/docker/overlay2/05ccedec209b329187a1f445b251e5089b96a8ca2b4efdba6fd15f6125407b75/merged/etc/ssl/cert.pem
/var/lib/docker/overlay2/05ccedec209b329187a1f445b251e5089b96a8ca2b4efdba6fd15f6125407b75/merged/usr/local/lib/python3.7/site-packages/acme/testdata/cert.pem
/var/lib/docker/overlay2/05ccedec209b329187a1f445b251e5089b96a8ca2b4efdba6fd15f6125407b75/merged/usr/local/lib/python3.7/site-packages/josepy/testdata/cert.pem
/var/lib/docker/overlay2/ca9613ff9f1b13c201155eebc0db85de8ccacb35b6299f3c236d139d5d66763b/merged/etc/ssl/cert.pem
/var/lib/docker/overlay2/7b69a155d2ce2d91a1983d0c7f7afbb70af58be19a9b8a0bc731c9ca13881882/diff/etc/ssl/cert.pem
/var/lib/docker/overlay2/82fbfa6ac570c11e20243140eb0114376fbb28a29cebd949fb10a4237036fe93/merged/etc/ssl/cert.pem
/var/lib/docker/overlay2/9f9f5864d3e26172199a2ab4d1e7772b7f1760e42f334fd40da899f0bdd3843b/diff/etc/ssl/cert.pem
/var/lib/docker/overlay2/9b6279272df879ad9404073c50fccc0fd0e299ec9b6e76d26aee6023fc08d507/merged/etc/ssl/cert.pem
/var/lib/docker/overlay2/4ec5357c08fee811787d1cf4bab06c37714f6f99d5516669c8a1c5bafbf67179/diff/etc/ssl/cert.pem
/var/lib/docker/overlay2/8b38305363e13f6b45da0a5a74c564e68ad34b7319103d803f81a8cfc7c9c246/diff/usr/local/lib/python3.7/site-packages/acme/testdata/cert.pem
/var/lib/docker/overlay2/8b38305363e13f6b45da0a5a74c564e68ad34b7319103d803f81a8cfc7c9c246/diff/usr/local/lib/python3.7/site-packages/josepy/testdata/cert.pem
/var/lib/docker/overlay2/d3faeff738f7a455cb31aec2def47e1897da3a9c9c9b64bfa21e619545939628/merged/etc/ssl/cert.pem
1 Like

I have the same, I have my own sourced DDNS and want to do it without Donald Duck.
Also because I have the Home Assistant Core version and cannot use add-ons.