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plan/07-mc-backup.md

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+# mc-backup — world backups
+
+## Summary
+
+`itzg/mc-backup` alongside the server, talking via RCON. Snapshots the world every
+6h, prunes after 14 days. World-only (no mod jars — mods are reproducible from the
+packwiz pack). Unchanged from the original design; lowest-priority service.
+
+## Config (carry-over)
+
+```yaml
+mc-backup:
+  image: itzg/mc-backup
+  environment:
+    BACKUP_INTERVAL: "6h"
+    RCON_HOST: "minecraft"
+    RCON_PASSWORD: ${RCON_PASSWORD}
+    PRUNE_BACKUPS_DAYS: "14"
+    TZ: "Europe/Madrid"
+  volumes:
+    - mc_data:/data:ro
+    - ./backups:/backups
+```
+
+## Tasks
+
+- [ ] Keep `mc-backup` service on `mcnet`, `depends_on: minecraft`
+- [ ] Confirm RCON enabled on server (`ENABLE_RCON`, `RCON_PASSWORD`)
+- [ ] Verify `./backups/` is gitignored (already is)
+- [ ] Optional: shorter interval / manual `rcon save-all` before risky changes