Issue setting up Vikunja on aws ec2 which already has Caddy on Host

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1

I wanted to understand how to setup VIkunja on my ec2 machine which

  1. Already has Caddy installed on Host.
  2. Which has port 80 and 443 being used by other service → this, i know i can remap in compose file.
  3. PublicURL would be? dns name or which one, should it have / at end or something
  4. I have elastic IP attached to my ec2, where do i need to utilize this
  5. I have a Route53 domain > where to setup this thing? in Caddy which is at host or at docker caddy container level?

Couldn’t find all the answers related to this, can someone quickly help me on this.