An instance you are not using had to be deleted, and deleting it destroys its
database. Now it can be put to sleep instead.
sudo supaspin suspend N # stops all twelve pods, keeps everything else
sudo supaspin resume N # starts them again with the same data
Suspending gives the server back, per instance: the 1.875 GiB it had reserved and
the 1.5-2.5 GiB it was actually using, its twelve pod slots out of the 110 a node
allows, and its two server ports (Postgres 544N, Studio 300N).
It keeps: the database and the uploads (the disk images stay mounted), the .env
file with its passwords and keys, the HTTPS certificate, which goes on renewing
itself while the instance sleeps, and the hostname, which answers "service
unavailable" until the instance is resumed. Disk space is not given back - that is
the data being kept.
How: every service takes its pod count from a `replicaCount` setting, so suspend
writes zero into all twelve and re-applies the chart, resume writes one. This goes
through the instance's stored settings rather than scaling the running pods by
hand, so it survives anything that re-applies the chart later.
`supaspin upgrade` now understands a sleeping instance: it stores the new memory
limits for it and leaves it asleep instead of waiting for pods that by design do
not exist. `supaspin list` reports each instance as running, suspended or partly
suspended, and prints no tunnel commands for a sleeping one, because nothing is
listening on its ports.
`suspend` and `resume` take one instance number and have no "all" form: stopping
every instance is not something to type by accident, and resuming them all at once
would start 36 pods in one go.
Reading the stored settings and handing them back to Helm is now shared by
upgrade, suspend and resume.
Verified on instance 2 (supa2.didgibot.com): suspended to zero pods, memory
reserved on the node fell from 25766 MiB to 23846 MiB (exactly the 1920 MiB it
had), ports 3002 and 5442 freed, then resumed to 12/12 pods with 0 restarts, its
55 tables and 11 MB of data intact and the gateway answering again.
Tests: 130 pass (17 new). Version 1.2.1 -> 1.3.0.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
