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container crash watcher → HelperEvent::ContainerCrash

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new hive_c0re::crash_watch task polls every 10s, builds the set of
currently-running containers, and on running→stopped transitions
checks the transient snapshot: if no Stopping / Restarting /
Destroying / Rebuilding flag is set, the container exited
unexpectedly and we fire HelperEvent::ContainerCrash into the
manager's inbox so it can react (typically: start it again).

first poll is a seeding pass — no events on harness startup. dbus
subscription would be lower-latency but polling is honest and
debuggable, and a 10s delay on crash detection is fine for our
scale.

manager prompt + approvals doc updated to advertise the new
event variant. todo drops the entry (and the journald-viewer
entry that already shipped).
This commit is contained in:
müde 2026-05-15 21:02:05 +02:00
parent 6db38cf70c
commit 58c3cd853b
6 changed files with 92 additions and 7 deletions
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TODO.md
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@ -99,9 +99,3 @@ Pick anything from here when relevant. Cross-cutting design notes live in
that takes the existing notes + a "compact this" prompt and rewrites
them in place. Add when the notes start bloating.
## Lifecycle / reliability
- **Container crash events.** Watch `container@*.service` via D-Bus, push
`HelperEvent::ContainerCrash` to the manager's inbox so the manager can
react (restart, escalate, etc.).