# nh3-dev: /srv/nemi/inbox, the capture root Nemi walks into albok's personal/inbox wing (unit 4.4 slice C; albok-dev
# 2026-10-13 after Prime's 1530 intake ruling). People and agents drop markdown here; Nemi ingests each file once
# (capture mode never tombstones on absence, so a walked file may be moved away).
#   scripts/elway infra-ops@10.100.10.50 --playbook playbooks/nh3-dev-nemi-inbox.yaml
# Writers: group nemi-drop (lkraven, infra-ops). Nemi runs as lkraven from the user manager, whose groups were fixed
# at its start, so lkraven's access does not depend on the new group: the dir is lkraven-owned and a DEFAULT ACL gives
# lkraven and nemi-drop rw on everything created inside, whoever drops it and whatever their umask.
steps:
  - name: Group nemi-drop with lkraven and infra-ops
    sudo: true
    shell: |
      getent group nemi-drop >/dev/null || groupadd nemi-drop
      usermod -aG nemi-drop lkraven; usermod -aG nemi-drop infra-ops
      getent group nemi-drop
  - name: /srv/nemi (root:nemi-drop 0750) and /srv/nemi/inbox (lkraven:nemi-drop 2770, default ACL)
    sudo: true
    shell: |
      install -d -o root -g nemi-drop -m 0750 /srv/nemi
      setfacl -m u:lkraven:rx /srv/nemi     # traversal for lkraven's user manager, whose groups predate nemi-drop
      install -d -o lkraven -g nemi-drop -m 2770 /srv/nemi/inbox
      setfacl -m u:lkraven:rwx,g:nemi-drop:rwx /srv/nemi/inbox
      setfacl -d -m u::rwX,u:lkraven:rwX,g::rwX,g:nemi-drop:rwX,o::--- /srv/nemi/inbox
      getfacl -p /srv/nemi/inbox
verify:
  - name: Nemi's own context (lkraven's systemd user manager, groups fixed at boot) can list the inbox
    shell: runuser -u lkraven -- env XDG_RUNTIME_DIR=/run/user/1000 systemd-run --user --wait --pipe -q ls -ld /srv/nemi/inbox
    sudo: true
    changed_when: "false"
  - name: A file dropped by infra-ops is readable and removable by lkraven
    sudo: true
    shell: |
      set -e
      f=/srv/nemi/inbox/.acl-probe-$$
      runuser -u infra-ops -g nemi-drop -- sh -c "umask 077; echo probe > $f"
      runuser -u lkraven -- cat "$f" >/dev/null
      runuser -u lkraven -- rm -f "$f"
      test ! -e "$f" && echo "infra-ops drop -> lkraven read+remove: ok"
    changed_when: "false"