Headscale with Headscale Admin UI

What is it?

Headscale is an admin management server for tailscale services. Headscale-Admin is the UI interface for Headscale.

This Docker compose sets up the above two things for you.

Create a DNS entry on your cloudflare (or whatever DNS you use). For example https://tailscale.YOURDOMAIN.com

Copy the compose.yml into portainer or dockge or whatever compose manager you use, and run.
Enter the following command to make an API key within headscale: docker exec headscale headscale apikeys create --expiration 90d You can change the expiration limit if you want. Copy the resulting API key.
Now go to https://tailscale.YOURDOMAIN.com/admin This will open the UI page of Headscale Admin.
Leave the API URL blank, and fill in the API KEY you copied earlier and proceed.
Refresh the page or go to https://tailscale.YOURDOMAIN.com/admin again to see all the settings now.
Create your first user in the Users page.
You can now add nodes and stuff.

Go to https://tailscale.com and download and install the client for your device.
Then follow the instructions provided in this link to connect the client node to your custom headscale server: https://tailscale.com/kb/1507/custom-control-server
You can use the UI at https://tailscale.YOURDOMAIN.com/admin to create a node, in the Nodes page where you can add the device key directly, to authorize your client device.
If you want to be able to use the network of a certain node like a VPN, make sure you setup that client as an exit node. Then any other nodes can connect to the network of this node. More info here: https://tailscale.com/kb/1103/exit-nodes