Mortdecai
c1558d2630
scripts/tank-automount.sh (run on the Mac, password on stdin) adds a /- direct map and root-owned /etc/auto_smb pointing at //Administrator@ 192.168.0.173/tank with soft. Mounts on first access, unmounts idle, so the laptop can leave the LAN without hung Finder or login dialogs. Findings baked in: - macOS automount does not create direct-map trigger dirs -> mkdir -p - automounted fs are always nobrowse (man auto_master): shows as a folder, not a Locations drive -> Finder Favorite (manual-checklist) - no-tty sudo ticket is per parent pid: sudo inside $(...) fails, so the idempotency check is a pipeline (sudo cmp -s -) - SMB over NFS: Mac seth is uid 501; SMB force user=root matches /mnt/Z Also: checklist Gitea key -> id_ed25519_homelab; the smb://.../tank 'user seth' step was wrong (no such Samba user) and is now the automount. Wired into run.sh. Verified: mount, root-owned write, two all-[skip] reruns. Not yet verified across a reboot (FileVault). Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
35 lines
5.4 KiB
Markdown
35 lines
5.4 KiB
Markdown
# DECISIONS.md — mac Decision Log
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Project-specific decisions. For global/cross-cutting decisions, see `~/bin/DECISIONS.md`.
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Format: `YYYY-MM-DD: <decision> — <why>`
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## Architecture
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- 2026-09-15: Hostname `mac` — matches the short-lowercase machine naming (`bebop`, `yoga`); `ssh mac` alias already points at 192.168.0.94.
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- 2026-09-15: Managed as `Brewfile` + idempotent `scripts/setup.sh` run over SSH from steel141 — seth is the console user so `defaults write` + `killall Dock` apply from SSH; GUI-only Tahoe toggles go in `docs/manual-checklist.md`.
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- 2026-09-15: Backup = nightly launchd rsync (`-a --delete`) of `~/Music/Ableton` + `~/Documents` -> `pve173:/tank/backups/mac/`, with a ZFS snapshot cron on pve173 for history — rsync is transparent and Linux-familiar; the snapshot covers the `--delete`-mirrors-a-mistake weakness.
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## Implementation
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- 2026-09-15: Login shell = Homebrew bash 5 (`/opt/homebrew/bin/bash`) — Seth's steel141 shell is bash; Apple ships bash 3.2. zsh stays installed.
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- 2026-09-15: GNU coreutils/findutils/sed/grep/tar on PATH via gnubin (unprefixed) — Linux muscle memory beats BSD-compat; if a Homebrew script trips on GNU sed, fix PATH order in `~/.bash_profile`, don't prefix.
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- 2026-09-15: Window snapping = Rectangle — zero config; AeroSpace is the upgrade if tiling turns out to matter.
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- 2026-09-15: Spotlight indexing stays on, Siri/web suggestions off — Finder search is useful; Live's browser has its own index.
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- 2026-09-15: iCloud account stays, iCloud Drive Desktop&Documents sync OFF — cloud sync mid-save is a DAW project killer.
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- 2026-09-15: **Unattended sudo = temporary `/etc/sudoers.d/mac-setup` (NOPASSWD), not pty password injection.** Piping the password into `ssh -tt` raced and hung 14 min on the real run (passed a fast test). The drop-in is validated before activation, removed on every run.sh exit path, and self-destructs on the Mac after 40 min. See run.sh / _install_sudoers.sh.
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- 2026-09-15: Mac's backup key on pve173 is **rrsync-restricted** (`command="/usr/bin/rrsync /tank/backups/mac"`) — a travelling laptop's key must never be unrestricted root on the tank host. Proven: an interactive command over that key is refused.
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- 2026-09-15: **Optional/cosmetic steps must be non-fatal under `set -e`.** The SparkFun removal (macOS refuses) and the GUI-domain `launchctl bootstrap` (flaky over SSH) both aborted the run until guarded with `|| warn`. Rule for this repo: anything that can legitimately fail without breaking the goal gets a best-effort guard.
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- 2026-09-15: **Two ssh keys on the Mac: `id_ed25519` (backup, rrsync-jailed) + `id_ed25519_homelab` (interactive, `Host *` default).** sshd honours the first matching authorized_keys line per key, so one key can't be both jailed and a shell on pve173. `backup.sh` pins the jailed key with `-i` + `IdentitiesOnly`; verify with `id`, not `true` (rrsync whitelists `true` as a ping). Key push = `scripts/authorize-mac-key.sh` from steel141 (uses claude's aliases; pve nodes share `/etc/pve/priv/authorized_keys`, so one write covers all four).
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- 2026-09-15: Mac ssh aliases mirror the curated set in `~/bin/CLAUDE.md` (not claude's full `~/.ssh/config`) — stale/undocumented entries (nixos, thinkpad-nano, mortdec-auth, vast) left out. `bedroom` = root, matching steel141's alias (was `seth`, undocumented).
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- 2026-09-15: **tank on the Mac = autofs + SMB (`Administrator`, = root on tank) at `/Volumes/tank`, via `scripts/tank-automount.sh`** — mounts on access, unmounts idle, `soft`: a laptop that leaves the LAN gets no hung Finder and no login-time "server unavailable" dialogs (same idea as vdj-rig's `x-systemd.automount`). SMB over NFS because the Mac's seth is uid 501: NFS would write as an unknown uid and only into the 777 dirs; SMB `force user = root` matches steel141's `/mnt/Z`. Cost: the password sits in root-owned `/etc/auto_smb` (0600) — same class as steel141's `~/.smbcredentials`. `automount` does not create direct-map trigger dirs, so the script `mkdir -p`s it. sudo inside `$(...)` loses the no-tty ticket — keep sudo in pipelines/direct calls.
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- 2026-09-15: `defaults displaysleep` on AC = 30 min, not 0 — display sleep doesn't stop Live's audio; only system `sleep` does.
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## Deferred / Rejected
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<!-- Decisions NOT to do something are just as valuable -- prevents re-proposing rejected ideas -->
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- 2026-09-15: Cmd<->Ctrl global swap REJECTED — Live 12 and every Mac tutorial are Cmd-native; kitty already handles Ctrl+Shift+C/V. Karabiner per-app remaps are the fallback, not a global swap.
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- 2026-09-15: yabai REJECTED — useful features need partial SIP disable. SIP/Gatekeeper/FileVault all stay on.
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- 2026-09-15: Time Machine REJECTED — over SMB it's fragile and whole-disk; rsync + tank-side ZFS snapshot covers the actual need.
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- 2026-09-15: Removing `/System/Applications` apps REJECTED — sealed system volume; hide from Dock instead.
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- 2026-09-15: Finder "Connect to Server" + Login Item for tank REJECTED (for now) — it's the only way to get a real drive icon under Locations, but it hard-mounts: off-LAN logins throw a server dialog and a dropped network beachballs Finder for ~60 s. autofs mounts are always `nobrowse` (`man auto_master`), so the trade is drive-icon vs roaming-safe; roaming-safe won. Revisit if Seth wants the icon.
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- 2026-09-15: Samples/projects on the SMB share REJECTED — local disk only; SMB is a copy source. External SSD is the capacity upgrade path.
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