Peter van Arkel
b1789d8621
Teach the systemd installer to install required Debian/Ubuntu packages by default, with an opt-out for users who manage system dependencies themselves. Add explicit MariaDB install-extra handling so native installs can pull in both the Python extra and required client build packages. Slim down the README to production setup and operations, and move development, Docker, migration helper, and architecture notes into docs/development.md.
186 lines
4.9 KiB
Markdown
186 lines
4.9 KiB
Markdown
# Development Notes
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This document contains development and optional Docker workflows. The recommended production path is the native
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systemd installer documented in the README.
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## Local Development
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```
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python3 -m venv .venv
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. .venv/bin/activate
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python3 -m pip install -e .
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mkdir -p var
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python3 manage.py migrate
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python3 manage.py createsuperuser
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python3 manage.py runserver
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```
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The admin is available at:
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- http://127.0.0.1:8000/
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- http://127.0.0.1:8000/admin/
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Staff-only JSON endpoints are available at:
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- http://127.0.0.1:8000/api/
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- http://127.0.0.1:8000/api/status/
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## Running Tests
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The project test suite is currently run through the Docker image so the runtime dependencies match deployment:
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```
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docker compose build web scheduler worker
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docker compose run --rm web python manage.py test pobsync_backend --verbosity 2
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```
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## SQL-First Commands
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The Django UI is the normal operating surface, but the `pobsync` entrypoint remains useful for setup and inspection.
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Create global config:
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```
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pobsync configure-global --backup-root /mnt/backups/pobsync
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```
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Create a host config:
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```
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pobsync configure-host <host> --address <host-or-ip>
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```
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Run a backup:
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```
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pobsync backup <host> --prune
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```
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Create or update a schedule:
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```
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pobsync schedule <host> --cron "15 2 * * *" --prune
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```
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Run the scheduler:
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```
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pobsync scheduler --loop --interval 60
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```
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Plan or apply retention manually:
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```
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pobsync retention <host>
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pobsync retention <host> --apply --yes --max-delete 10
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```
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Discover snapshots already present on disk:
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```
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pobsync discover-snapshots --host <host>
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```
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The `pobsync` executable is a thin wrapper around Django management commands. Direct Django access is also available:
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```
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pobsync django check
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python3 manage.py run_pobsync_backup <host> --prune
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```
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## Migration Helpers
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Import existing legacy YAML configs:
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```
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python3 manage.py import_pobsync_configs --prefix /opt/pobsync
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```
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Export SQL config to legacy runtime YAML for inspection or one-off compatibility:
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```
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python3 manage.py export_pobsync_configs --prefix /opt/pobsync
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```
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These commands are migration helpers, not the normal operating model.
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## Docker With SQLite
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Docker Compose is useful for local development and disposable test installs. Native systemd is preferred for production
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backup servers.
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```
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docker compose up --build web
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```
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This starts Django on:
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- http://127.0.0.1:8010/
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- http://127.0.0.1:8010/admin/
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- http://127.0.0.1:8010/api/
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- http://127.0.0.1:8010/api/status/
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Run the scheduler alongside the web admin:
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```
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docker compose up --build web scheduler worker
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```
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The web service runs Django through Gunicorn and serves static files with WhiteNoise. The container persists
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`/opt/pobsync` and the SQLite database in Docker volumes.
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Backup data is always available at `/backups` inside the containers. By default this uses `./backups` on the host.
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Override the host-side mount with `POBSYNC_BACKUP_ROOT`:
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```
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POBSYNC_BACKUP_ROOT=/mnt/backups/pobsync docker compose up --build web scheduler worker
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```
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## Docker With MariaDB
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```
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docker compose --profile mariadb up --build web-mariadb
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```
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With the scheduler:
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```
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docker compose --profile mariadb up --build web-mariadb scheduler-mariadb worker-mariadb
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```
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SQLite remains the default because it is enough for a single backup server and keeps deployment simple.
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For native systemd installs with MariaDB client support, run the installer with:
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```
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sudo scripts/install-systemd --install-extras mariadb
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```
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## Current Architecture
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The public command surface is Django-first. The old YAML/cron CLI has been retired from the `pobsync` entrypoint.
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Discovered snapshots are stored in `SnapshotRecord`, including the base snapshot metadata and a nullable SQL link to the
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base record when it is known.
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The Django retention command plans from `SnapshotRecord` instead of rediscovering snapshots from the filesystem.
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Post-backup pruning from Django also uses the SQL retention service after the completed snapshot is recorded.
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Staff-only JSON endpoints expose service status, hosts, snapshots, and backup runs for lightweight inspection.
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Staff-only dashboard views expose the same operational state through Django templates.
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Host pages include a safe snapshot discovery action that records existing snapshots into SQL.
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Host pages also include a read-only SQL retention plan view before any destructive pruning action.
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Schedules can be created or updated from host pages using the same SQL-backed scheduler model.
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Host config can be edited from host pages while keeping host identity stable.
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The remaining internal engine code still contains reusable backup primitives:
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- snapshot naming and metadata
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- rsync command construction and execution
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- retention planning and pruning
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- host locking
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Next refactor targets:
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- Move more snapshot lifecycle details into typed domain objects.
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- Replace remaining dictionary-shaped config at engine boundaries.
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- Remove legacy YAML import/export once production migration no longer needs it.
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