status convention: print one line, exit 0 OK / 1 DRIFT / 2 unknown (e.g.
needs root). sysmig status now shows [applied ✓/✗/?] per migration and
exits 1 on drift. DB checks fall back to peer auth when non-root.
Per https://www.postgresql.org/download/linux/debian/ (manual configuration):
GPG key + deb822 sources (codename-pgdg) + postgresql-18. Skip-check now
requires an 18 cluster. Down also removes the PGDG repo.
- up/down/status interface, history in /var/lib/sysmig/applied
- 001 swap 2GB + swappiness=10, 002-004 trim unneeded daemons (~56MB)
- google-osconfig-agent intentionally kept
- all messages/comments in ASCII English (console font safety)
wan