Maintenance and advanced
Restarts, the host clock, the server's address, and removing a server.
Settings -> Servers -> the server, on the Maintenance and Advanced tabs.
Maintenance
Prop
Type
Advanced
Prop
Type
Generated addresses
Every app gets a free address that needs no DNS, built from its server's address:
| Choice | App address | Points at |
|---|---|---|
| IPv4 | web-calm-fox-cb00710a.deplo.site | 203.0.113.10 |
| IPv6 | web-calm-fox-v6-2001-db8--10.deplo.site | 2001:db8::10 |
| Automatic | IPv4 when the server has one, IPv6 otherwise |
On the server Deplo itself runs on, Automatic follows the kind the
installer was run with (--ipv4 or --ipv6).
Pick IPv6 when visitors reach the server over IPv6 only. Changing it renames
every generated address already on the server, keeping its words, so
web-calm-fox-cb00710a.deplo.site becomes
web-calm-fox-v6-2001-db8--10.deplo.site. Each app answers on its new name
after its next deploy. Domains of your own are not touched.
A kind the server has no address for is greyed out. Only an instance admin can change it.
Removing a server
Removing is trust revocation, not an uninstall. The pinned certificate is cleared and Deplo never talks to that machine again. It does not reach in and remove containers, because by then it may not be able to.
Deplo prints a one-line uninstall command to run on the host if you want the agent, its Traefik and its state directory gone. See Remove or uninstall.
The machine running the control plane cannot remove itself.
Before using maintenance
- Health is a cache, not a gate. Past a staleness window the page shows Unknown rather than a stale green. Deploys gate on a live handshake.
- Restarting Traefik drops connections for a moment on every app on that host.
- Changing the address does not move anything. It only changes how Deplo dials.
Troubleshooting
| Symptom | What to check |
|---|---|
| The card says warning | The agent is up, Docker is not answering there. Check the Docker service on the host. |
| A restart action fails | The agent is unreachable. Health and readiness will say so. |
More in Servers and agents.
Next steps
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