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ansible/roles/timeshift/README.md
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Fix: Resolve linting errors and improve firewall configuration 
- Fix UFW firewall to allow outbound traffic (was blocking all outbound)
- Add HOST parameter support to shell Makefile target
- Fix all ansible-lint errors (trailing spaces, missing newlines, document starts)
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- Update .ansible-lint config to exclude .gitea/ and allow strategy: free
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- Add missing document starts to host_vars files
- Clean up empty lines in datascience role files
2025-12-17 22:51:04 -05:00

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Timeshift Role

Manages Timeshift system snapshots for backup and rollback capabilities.

Purpose

This role installs and configures Timeshift, a system restore utility for Linux. It can automatically create snapshots before playbook execution to enable easy rollback if something goes wrong.

Features

  • Installs Timeshift package
  • Creates automatic snapshots before playbook runs
  • Configurable snapshot retention
  • Easy rollback capability

Variables

Installation

  • timeshift_install (default: true) - Install Timeshift package

Snapshot Settings

  • timeshift_auto_snapshot (default: true) - Automatically create snapshot before playbook execution
  • timeshift_snapshot_description (default: "Ansible playbook snapshot") - Description for snapshots
  • timeshift_snapshot_tags (default: ["ansible", "pre-playbook"]) - Tags for snapshots
  • timeshift_snapshot_type (default: "RSYNC") - Snapshot type: RSYNC or BTRFS

Retention

  • timeshift_keep_daily (default: 7) - Keep daily snapshots for N days
  • timeshift_keep_weekly (default: 4) - Keep weekly snapshots for N weeks
  • timeshift_keep_monthly (default: 6) - Keep monthly snapshots for N months

Location

  • timeshift_snapshot_location (default: "/timeshift") - Where to store snapshots

Usage

Basic Usage

Add to your playbook:

roles:
  - { role: timeshift, tags: ['timeshift', 'snapshot'] }

Disable Auto-Snapshot

roles:
  - { role: timeshift, tags: ['timeshift'] }

In host_vars or group_vars:

timeshift_auto_snapshot: false

Manual Snapshot

# On the target host
sudo timeshift --create --comments "Manual snapshot before changes"

Rollback

# List snapshots
sudo timeshift --list

# Restore from snapshot
sudo timeshift --restore --snapshot 'YYYY-MM-DD_HH-MM-SS'

# Or use the Makefile target
make timeshift-restore HOST=dev02 SNAPSHOT=2025-12-17_21-30-00

Integration with Playbooks

The role is designed to be run early in playbooks to create snapshots before making changes:

roles:
  - { role: timeshift, tags: ['timeshift', 'snapshot'] }  # Create snapshot first
  - { role: base }
  - { role: development }
  # ... other roles

Dependencies

  • Debian/Ubuntu-based system
  • Root/sudo access

Notes

  • Snapshots require significant disk space
  • RSYNC snapshots are larger but work on any filesystem
  • BTRFS snapshots are smaller but require BTRFS filesystem
  • Snapshots exclude /home by default (configurable)