Granted I use Kubernetes, but here you go:
Been an OVH customer for 10+ years. Always been a solid choice.
Ahh, good old IRC. Look into something like InspIRCd. It should already allow you to restrict channel creation to registered accounts. Then combine that with something like Atheme or Anope IRC Services. I couldn’t find any PAM modules, but Atheme should at least support an external database (back in the day we used a mysql backend).
Look at K3s. Since a while it has built-in support for Tailscale (can also use Headscale).
Alternatively, it doesn’t really matter how or where your nodes are located, if you add a VPN to allow them to talk to each other.
Your main issue would be storage. But that’s easily fixed with a topology aware CSI and then keeping your stateful workloads either wherever they got their volumes provisioned, or forcing them to be provisioned on your home servers.
I’d argue it’s up there :) In the end you’re quite limited with what you can do as an unprivileged user.
Granted it’s not for Docker, but Kubernetes, but userns is userns. This Kubernetes blog post even has a short demo :) https://kubernetes.io/blog/2023/09/13/userns-alpha/
run the container as a non root user (some containers won’t work so they need to be run as root user)
To avoid issues with containers, could also make use of user namespaces: https://docs.docker.com/engine/security/userns-remap/
Allows a process to have root privileges within the container, but be unprivileged on the host.
What is your worst case, if someone gains access to your stuff? We can’t answer that. That doesn’t necessarily depend on your applications, but more in the data behind them.
Can be everything. From nothing to financial ruin through identity theft.
I host it to have my own data under my own roof.
I’ve worked in the hosting industry. I’ve witnessed an internal breach, where an employee abused access over a few corners and fetched files matching a certain pattern from all customer VPSes (Virtuozzo container based VPSes have their root filesystem accessible from the host)
Normal background noise. You expose stuff to the public and in return you make friends with a bunch of bots.