I’m currently running Home Assistant OS in a virtual machine and need help installing a custom CA certificate. I’m using an internal Sonatype Nexus container image cache, and I’d like Home Assistant to trust my internal registry to avoid update failures.
In typical environments (e.g., standard Linux OS or Kubernetes clusters), I add the .crt file for my internal CA to the trusted certificate store. How can I achieve the same with Home Assistant OS? Is there a recommended way to add a custom CA certificate so that Home Assistant can validate connections during updates?
I’ve been having a similar problem. I did a lot of research too; TBH searching the Home Assistant site for “secure” is kind of useless (at least it was for me). I hope you found an answer; if not you might look at this thread Let Home Assistant trust a personal certificate authority. If you have HACS installed (https://hacs.xyz) there’s a tool for doing this; search the repository for “Additional CA” which might help in your use case.
