Cloudron installation script: select alternative Ubuntu Repository mirror

[p44]

Ubuntu Repository is often slow and unstable.

In last months I had several time same problem: unreachable, overloaded...

In Cloudron installation script it could be interesting to select (or auto shift based on ping) a different mirror as an alternative.

This is a real time video record of the speed today:

Err:75 http://security.ubuntu.com/ubuntu noble-updates/main amd64 linux-firmware amd64 20240318.git3b128b60-0ubuntu2.26
  429  Too Many Requests [IP: 185.125.190.82 80]
Fetched 291 MB in 14min 1s (346 kB/s)
E: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/l/linux-firmware/linux-firmware_20240318.git3b128b60-0ubuntu2.26_amd64.deb  429  Too Many Requests [IP: 185.125.190.82 80]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

And then result is:

=> Installing base dependencies (this takes some time) ...Init script failed. See /var/log/cloudron-setup.log for details

[james]

Hello @p44
Cloudron does not set up the repos, that is configured by the provider.
Some providers like Hetzner use their own mirror to save bandwidth and increase speed.
Also, if someone is setting up their own repos for security or what ever reason, before setting up Cloudron, I think we should not interfere with that.

[robi]

@james might be a useful pre-install checklist for setting up a speedy mirror