Commit Graph

2 Commits (6f2b24c51a6ec8cf9d9409fe580160e0ef3640ca)

Author SHA1 Message Date
Amir Alexander Abdelbaki 5d56984e38 feat(ansipa): store LUKS backup keys on SMB share with KeyAdmin access control
ansipa-smb-setup.sh:
- Adds KeyAdmin Linux group and luks-upload service account (member of
  KeyAdmin) on the IPA container, both persisted across restarts.
- LUKS base dir /data/luks-keys owned root:KeyAdmin, mode 2750 (setgid
  so new files inherit the group).
- New [ansipa-luks-keys] SMB share: valid users = @KeyAdmin, read only,
  write list = luks-upload. Human admins gain read access by being added
  to KeyAdmin: useradd -r -G KeyAdmin <user> && smbpasswd -a <user>.
- LUKS_KEY_UPLOAD_PASSWORD sourced from env / /data/samba/ansipa-smb.env
  alongside the existing SMB_SCAN_PASSWORD.

collect-luks-keys.yml:
- After fetching /_LUKS_BACKUP_KEY from each client, uploads it to the
  ansipa-luks-keys share via smbclient using a temp credentials file
  (no_log, deleted in post_tasks).
- Local staging copy is removed after a successful upload.
- SMB credentials file uses an epoch-stamped path to avoid collisions.

.env.example: documents LUKS_KEY_UPLOAD_PASSWORD.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-20 15:33:17 +02:00
Amir Alexander Abdelbaki f1ea6dcb54 ansible: add collect-luks-keys playbook for LUKS backup key archival
New playbook collect-luks-keys.yml connects to all enrolled FreeIPA
clients, checks for /_LUKS_BACKUP_KEY (placed there by the installer
when encryption is enabled), and fetches each key to the Ansible
controller as luks-keys/<HOSTNAME>_LUKS_BACKUP_KEY (mode 0400).

Hosts without the file are reported but not treated as errors.
The luks-keys/ store directory is created with mode 0700.

Usage:
  ansible-playbook -i inventory collect-luks-keys.yml

Can be scheduled via cron on the controller for automatic collection.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-18 15:25:05 +02:00