Design 42: the zfs module owns a node's ZFS and changes nothing that is not set (ADR 0679, issue 1979) #596

Merged

mesh-tools merged 4 commits from design/42-zfs-owns-zfs into main 2026-11-12 22:34:20 +00:00

Conversation 1 Commits 4 Files Changed 3

+433 -1

4 Commits

Author	SHA1	Message	Date
jschoubben	224348ff4d	Design 42 zfs-owns-zfs: answer review round 1 against ADR 0679 version 11 ... Cites the record's final clauses, drops the catalog check and every write of the package's files, and writes the lead's answers as design lines: a run that never waits on a scrub, waits ended by events, ZFS snapshots kept in the ledger before any removal, hand acts as unit instances, subjects per kind, the follower's findings, the readers of the new manifest words and one node-engine integration test.	2026-11-12 23:20:51 +01:00
jschoubben	f26c8afc20	Design 42 zfs-owns-zfs: schedule the run in list form, so nothing waits on the calendar fix ... Today's node-engine writes a cron step as an invalid calendar but a minute list as a valid one, so the scheduled run declares 0,15,30,45 and the milestone no longer waits on another session's fix.	2026-11-12 23:02:13 +01:00
jschoubben	0ea81e0e96	Design 42 zfs-owns-zfs: answer the open question in the node-engine, name issue 1979 ... The lead answered that a resource following a set value and one line per list entry are built in the node-engine in this milestone, so the module's files, units and handlers are placed only once their value is set, as ADR 0679 holds. The cron-to-calendar fix leaves the milestone and stays an ordering edge the scheduled run waits on.	2026-11-12 22:57:56 +01:00
jschoubben	6772904668	Design 42: the zfs module owns a machine's ZFS and changes nothing unset (ADR 0679) ... Adds row 12 and a section to the main file, and the milestone part zfs-owns-zfs with numbered lines and its three prerequisites, so a builder takes ownership of ZFS's packages, files, units and one pool's devices, properties and scheduled ZFS snapshots without a choice of its own. Leaves one design question open (a resource that follows a value only once it is set). Adds ZFS snapshot to the glossary beside the two snapshots it already names.	2026-11-12 22:32:54 +01:00