I had a K8s setup running on Google cloud, using their managed database service. This was kind of nice, but expensive, cost ~$100 a month, and I was using very low specs.

I have multiple projects, none of them making money currently, so $100/month for each basic app is not good.

I switched to using Dokku on Vultr, $12 a month. You can easily create Postgres databases and link them to Docker apps. I haven't bothered to setup CD yet but it looks like it should be simple, for now I just push to it when I want to deploy. Liking this setup so far.

For frontend I use Netlify, I use their redirects to proxy the backend.