[rurban]

I also fell into this new trap:

    flyctl ips list

    flyctl ips release 168.220.XXX.XXX

    flyctl ips allocate-v4 --shared

Error: Your account has overdue invoices. Please update your payment information: https://fly.io/dashboard/myname/billing

Ok, so now they got my credit card info, because I had to pay 2$.

    flyctl ips allocate-v4 --shared

Error: cannot use a shared ipv4 with wildcard hostnames, please remove those before allocating a shared IP: .XXX

    flyctl certs list
    flyctl certs remove *.XXX
    flyctl ips allocate-v4 --shared

Now it works. Just have to fix my DNS records now. ipv6 or CNAME to the app.fly.dev domain preferred.

I don't like fly too much, because this is the first free hoster, which I have to constantly check for downtimes and restart the app then. Need a 10m cronjob now.

    cd ~/MyAppPath
    if timeout 5 flyctl logs -a myapp | grep -e "Health check on port 8080 has failed|connection error:"
    then
       flyctl apps restart myapp
    fi