Servers
Add servers and see how they are doing.
Unbind starts on one server. Add more when you need more room. Services are spread across all of them, and you change nothing in your projects.
See your servers
System > Servers lists every server with its status, and its vCPU, memory and replica counts. Open one for details: IP addresses, operating system, health and resource use.
| Status | What it means |
|---|---|
| Ready | Working normally |
| Not ready | Unbind cannot reach it, or it is still starting |
| Unschedulable | Marked to receive no new work |
| Low disk space | Free some space or grow the disk |
| Low memory | Too much is running on it |
| Too many processes | The process limit is nearly reached |
| No network | Its network is not set up correctly |
The System pages are for people who can manage the instance.
Add a server
The new server needs a supported operating system and has to reach the first server on port 6443.
Get the instructions
On your first server, run:
sudo unbind add-nodeIt prints a few blocks of commands, made for your instance, with the join token already filled in.
Run them on the new server
Connect to the new server as root and run the printed blocks in order. They configure access to your registry, prepare storage, write the settings and join the server to your instance.
Check
After a minute the server shows up under System > Servers as Ready. New deployments start landing on it right away.
The join token is a secret
Anyone who has it can add a machine to your instance. Do not paste the output anywhere public.
Good to know
- Traffic still enters through the first server. Your DNS records keep pointing at it. If it goes down, the instance is unreachable even when other servers are fine.
- Volumes live on one server. A service with a volume runs where its volume is.
- Keep servers close. Put them in the same data center or region. High latency between servers causes odd problems.
Apply new settings to a server
After an Unbind update that changes server settings, run this on each server:
sudo unbind update-nodeIt restarts the server's agent once. Your services keep running.
Remove a server
There is no command for this yet. If you need to remove one, ask in the community first, because removing a server that holds volumes loses their data.