DOM Cloud Container

Set up your own DOM Cloud server instance inside a virtualized platform and control it with our platform.

Built Images

The most recent one built on 2024-09-26:

• domcloud-x86_64.qcow2 4.41 GB
• domcloud-x86_64.vmdx 2.84 GB
• checksum

Select based on Virtualization platform e.g. Proxmox and QEMU uses QCOW2 while VMWare and VirtualBox uses VMDK. aarch64 builds is not available yet.

About the image

We use Hashicorp Packer to build images. We ran it inside privilenged docker. Simply run make build-image. With KVM acceleration the build should be done around one hour.

The image consist of Rocky Linux Minimal CD + Some scripts that installs Virtualmin and additional services to make it exactly like how a DOM Cloud server works. See install.sh and preset.sh to see the install scripts.

To run the final image using QEMU:

qemu-system-x86_64 -hda domcloud-x86_64.qcow2 -smp 2 -m 2048 -net nic -net user,hostfwd=tcp::22-:22,hostfwd=tcp::80-:80,hostfwd=tcp::443-:443,hostfwd=tcp::2443-:2443 -cpu max -accel tcg

This VM expose these ports:

• 22 for SSH
• 53 for DNS
• 80 and 443 for HTTP/HTTPS
• 2443 for Webmin

There's http://localhost Handled by NGINX to that runs our bridge software. This sorftware orchestrates your VM based on (To be undocumented) REST APIs.

Go to https://localhost:2443 in your browser to open webmin. Additionally, go to http://localhost/status/check and http://localhost/status/test To see if all services running and configured correctly.

The root password includes the root webmin access is rocky. The bridge HTTP secret and webmin login is also set to rocky.

Things to do after your VM online:

Change your VM passwords

Important

Change your VM password to very strong one before exposing it to the public.

You have 4 passwords to change:

1. Root password, change it with passwd
2. Webmin root password, change it with /usr/libexec/webmin/changepass.pl /etc/webmin root "<password>"
3. User bridge password, change it with passwd bridge
4. bridge HTTP Secret key, change it in /home/bridge/public_html/.env and restart it sudo systemctl restart bridge.

Additionally:

1. Disable root password auth via SSH by setting PermitRootLogin prohibit-password in /etc/ssh/sshd_config

Check Virtualmin Configuration

Go to https://localhost:2443 and log in with user root.

1. Finish the post installation wizard
2. Go to Virtualmin -> System Settings -> Re-Check Configuration

Install the correct IPv4 and IPv6 addresses

The VM is built with QEMU. The networking IP addresses definitely changed and you need to adjust it.

1. Identify your IP addresses, run nmcli dev show ens3 or ip addr show scope global in terminal.
2. Go to Virtualmin -> Addresses and Networking -> Change IP Addresses
3. Enter old IP 10.0.2.15 and new IP. Click Change Now.

Update Packages

Run yum update.

Connect to DOM Cloud

Contact us to connect your instance to DOM Cloud.