Schedule daily Atlas Navidrome music copy

AGENTS.md

@@ -57,6 +57,8 @@ Ansible-driven personal infrastructure repo for Fedora and Void desktops, Fedora
   - Server compose render: `podman-compose -f /opt/docker/server/docker-compose.yml config` and `systemctl status podman-compose-server`
   - Atlas media stack:
     `ansible-playbook ansible/site.yml --limit atlas --tags storage,sharing,containers --check --diff`
+  - Atlas daily Navidrome music copy:
+    `ansible-playbook ansible/site.yml --limit atlas --tags music_sync --check --diff`
   - Atlas network/share hardening:
     `ansible-playbook ansible/site.yml --limit atlas --tags hardening,sharing --check --diff`
   - Atlas ZFS snapshot retention and scrub timers:
@@ -164,7 +166,9 @@ The dotfile vars follow the same split: `desktop_common_dotfiles` carries mode-i
 - `profile_backend_phase1` temporarily runs rootless Navidrome and Syncthing on Atlas until Uranus replaces
   them. It binds only to Atlas' LAN IP, never `wg0`; Navidrome and the Syncthing GUI admit only Aegis as
   the source-NAT gateway, while native Syncthing ports admit the configured LAN. It initializes fresh
-  state only and never migrates or deletes source application data.
+  state only and never migrates or deletes source application data. The enabled rootless
+  `atlas-music-sync.timer` copies `/zpool/archive/Music` to `/zpool/media/music` daily at 00:45
+  Europe/Rome without deleting destination files; it requires both datasets to be mounted.
 - `wireguard_overlay` manages `wg0` between Prometheus (`10.0.0.1`) and Aegis (`10.0.0.2`). It persists private
   keys only on their respective hosts, exchanges only derived public keys through Ansible, and verifies a real peer
   handshake. Prometheus opens `51820/udp`; Aegis is the LAN gateway. Its persistent IPv4 forwarding, narrowly scoped
@@ -264,7 +268,9 @@ successfully. The first monthly scrub remains a runtime check.
   ZFS snapshot; a checksum-based rsync dry run found no differences or extra files. Navidrome saw
   all files through its read-only mount, completed a scan, indexed 18,168 tracks, and responded
   over HTTP. Some imported playlists still reference obsolete Windows paths. The source was left
-  intact and the temporary snapshot was removed.
+  intact and the temporary snapshot was removed. A daily, non-deleting rsync timer now keeps the
+  separate Navidrome music dataset updated from `Archive/Music`. A manual idempotent service run
+  succeeded on 2026-10-01; the first scheduled run remains to be verified.
 - [ ] Design and deploy Nextcloud as another explicitly temporary Atlas service before Uranus. Give it
   separate persistent application, database, and cache storage; keep credentials in Vault; publish it only
   through NPM over the Prometheus--Aegis gateway; and define backup, upgrade, and eventual Uranus-migration

README.it.md

@@ -312,8 +312,10 @@ Atlas ospita temporaneamente Navidrome e Syncthing rootless fino alla sostituzio
 servizi sono inizializzati **ex novo**, senza migrare lo stato precedente, rispettivamente sotto
 `/zpool/services/data/navidrome` e `/zpool/services/data/syncthing`; la musica in
 `/zpool/media/music` è stata popolata separatamente da `/zpool/archive/Music` il 2026-09-30;
-Navidrome ha completato la scansione. Alcune playlist originali contengono ancora vecchi percorsi
-Windows. I servizi sono vincolati all'indirizzo LAN di Atlas
+Navidrome ha completato la scansione. Il timer rootless `atlas-music-sync.timer` copia i file nuovi
+o modificati ogni giorno alle 00:45 Europe/Rome, senza eliminare quelli presenti solo nella
+destinazione; entrambi i dataset ZFS devono essere montati. Alcune playlist originali contengono
+ancora vecchi percorsi Windows. I servizi sono vincolati all'indirizzo LAN di Atlas
 (`192.168.178.55`), mai a WireGuard. `wireguard_overlay` collega invece Prometheus (`10.0.0.1`)
 e Aegis (`10.0.0.2`): le chiavi private restano sui rispettivi host e Ansible scambia solo le pubbliche.
 Prometheus apre `51820/udp`; Aegis inoltra soltanto il traffico overlay→LAN dichiarato e applica
@@ -734,6 +736,7 @@ yamllint ansible/path/to/file.yml
 podman-compose -f /opt/docker/server/docker-compose.yml config
 ansible-playbook ansible/site.yml --limit atlas --tags storage,sharing,containers --check --diff
 ansible-playbook ansible/site.yml --limit atlas --tags backend_phase1 --check --diff
+ansible-playbook ansible/site.yml --limit atlas --tags music_sync --check --diff
 ```
 
 ## Tag supportati dal playbook

README.md

@@ -297,7 +297,9 @@ Atlas' LAN address (`192.168.178.55`); WireGuard remains exclusively between Pro
 and Aegis (`10.0.0.2`). Their state is initialized ex novo in `/zpool/services/data/navidrome` and
 `/zpool/services/data/syncthing`; no source application state is migrated. The music library at
 `/zpool/media/music` was populated separately from `/zpool/archive/Music` on 2026-09-30;
-Navidrome completed its library scan. Some source playlists still contain obsolete Windows paths.
+Navidrome completed its library scan. The rootless `atlas-music-sync.timer` copies new and changed
+files daily at 00:45 Europe/Rome, without deleting destination-only files. Both ZFS datasets must
+be mounted. Some source playlists still contain obsolete Windows paths.
 
 The separate `wireguard_overlay` role manages `wg0` between Prometheus (`10.0.0.1`) and Aegis
 (`10.0.0.2`), generating private keys once on their respective hosts and exchanging only public keys
@@ -723,6 +725,7 @@ ansible-lint ansible/roles/<role>
 yamllint ansible/path/to/file.yml
 podman-compose -f /opt/docker/server/docker-compose.yml config
 ansible-playbook ansible/site.yml --limit atlas --tags storage,sharing,containers --check --diff
+ansible-playbook ansible/site.yml --limit atlas --tags music_sync --check --diff
 ```
 
 ## Tags

ansible/inventory/host_vars/atlas.yml

@@ -148,6 +148,7 @@ backend_phase1_bind_address: "{{ ansible_host }}"
 backend_phase1_firewalld_zone: "{{ atlas_firewalld_zone }}"
 backend_phase1_npm_source_ip: "{{ atlas_aegis_ip }}"
 backend_phase1_syncthing_native_subnet: "{{ atlas_lan_subnet }}"
+backend_phase1_music_sync_enabled: true
 
 rocky_manage_openzfs_repo: true
 rocky_manage_syncthing_binary: false

ansible/roles/profile_backend_phase1/defaults/main.yml

@@ -30,3 +30,7 @@ backend_phase1_timezone: Europe/Rome
 backend_phase1_services:
   - atlas-navidrome.service
   - atlas-syncthing.service
+backend_phase1_music_sync_enabled: false
+backend_phase1_music_source_dir: "{{ backend_phase1_archive_dir }}/Music"
+backend_phase1_music_sync_calendar: "*-*-* 00:45:00 Europe/Rome"
+backend_phase1_user_systemd_dir: "{{ backend_phase1_user_home }}/.config/systemd/user"

ansible/roles/profile_backend_phase1/tasks/main.yml

@@ -18,21 +18,28 @@
           - backend_phase1_app_data_root.startswith('/')
           - backend_phase1_navidrome_data_dir.startswith(backend_phase1_app_data_root + '/')
           - backend_phase1_syncthing_root.startswith(backend_phase1_app_data_root + '/')
+          - >-
+            not (backend_phase1_music_sync_enabled | bool) or
+            (backend_phase1_music_source_dir.startswith(backend_phase1_archive_dir + '/')
+            and backend_phase1_music_sync_calendar | length > 0)
         fail_msg: >-
           Disable the rootful media-stack gate and provide the Atlas LAN bind
           address, firewall sources, and absolute ZFS-backed paths before
           enabling phase one. This role does not manage Prometheus or migrate
           application data.
+      tags: [music_sync]
 
     - name: Read the rootless service account
       ansible.builtin.getent:
         database: passwd
         key: "{{ backend_phase1_username }}"
+      tags: [music_sync]
 
     - name: Record rootless service account IDs
       ansible.builtin.set_fact:
         backend_phase1_uid: "{{ ansible_facts['getent_passwd'][backend_phase1_username][1] }}"
         backend_phase1_gid: "{{ ansible_facts['getent_passwd'][backend_phase1_username][2] }}"
+      tags: [music_sync]
 
     - name: Read system service state before starting rootless Syncthing
       ansible.builtin.service_facts:
@@ -65,6 +72,7 @@
       loop_control:
         label: "{{ item.dataset }}"
       register: backend_phase1_zfs_facts
+      tags: [music_sync]
 
     - name: Require mounted datasets at the declared paths
       ansible.builtin.assert:
@@ -79,6 +87,23 @@
       loop: "{{ backend_phase1_zfs_facts.results }}"
       loop_control:
         label: "{{ item.item.dataset }}"
+      tags: [music_sync]
+
+    - name: Inspect the music copy source
+      ansible.builtin.stat:
+        path: "{{ backend_phase1_music_source_dir }}"
+      register: backend_phase1_music_source_stat
+      when: backend_phase1_music_sync_enabled | bool
+      tags: [music_sync]
+
+    - name: Require an existing music source directory
+      ansible.builtin.assert:
+        that:
+          - backend_phase1_music_source_stat.stat.isdir | default(false)
+        fail_msg: >-
+          {{ backend_phase1_music_source_dir }} must exist before enabling the daily music copy.
+      when: backend_phase1_music_sync_enabled | bool
+      tags: [music_sync]
 
     - name: Enable lingering for the rootless service account
       ansible.builtin.command:
@@ -87,12 +112,14 @@
           - enable-linger
           - "{{ backend_phase1_username }}"
         creates: "/var/lib/systemd/linger/{{ backend_phase1_username }}"
+      tags: [music_sync]
 
     - name: Start the rootless user systemd manager
       ansible.builtin.systemd:
         name: "user@{{ backend_phase1_uid }}.service"
         state: started
       when: not ansible_check_mode
+      tags: [music_sync]
 
     - name: Create rootless Quadlet and application directories
       ansible.builtin.file:
@@ -113,6 +140,43 @@
       loop_control:
         label: "{{ item.path }}"
 
+    - name: Install rsync for the daily music copy
+      ansible.builtin.dnf:
+        name: rsync
+        state: present
+      when: backend_phase1_music_sync_enabled | bool
+      tags: [music_sync]
+
+    - name: Create the rootless user systemd directory
+      ansible.builtin.file:
+        path: "{{ backend_phase1_user_systemd_dir }}"
+        state: directory
+        owner: "{{ backend_phase1_username }}"
+        group: "{{ backend_phase1_user_group }}"
+        mode: "0700"
+      when: backend_phase1_music_sync_enabled | bool
+      tags: [music_sync]
+
+    - name: Install the daily music copy service
+      ansible.builtin.template:
+        src: atlas-music-sync.service.j2
+        dest: "{{ backend_phase1_user_systemd_dir }}/atlas-music-sync.service"
+        owner: "{{ backend_phase1_username }}"
+        group: "{{ backend_phase1_user_group }}"
+        mode: "0644"
+      when: backend_phase1_music_sync_enabled | bool
+      tags: [music_sync]
+
+    - name: Install the daily music copy timer
+      ansible.builtin.template:
+        src: atlas-music-sync.timer.j2
+        dest: "{{ backend_phase1_user_systemd_dir }}/atlas-music-sync.timer"
+        owner: "{{ backend_phase1_username }}"
+        group: "{{ backend_phase1_user_group }}"
+        mode: "0644"
+      when: backend_phase1_music_sync_enabled | bool
+      tags: [music_sync]
+
     - name: Render the rootless Navidrome Quadlet
       ansible.builtin.template:
         src: atlas-navidrome.container.j2
@@ -140,6 +204,7 @@
         XDG_RUNTIME_DIR: "/run/user/{{ backend_phase1_uid }}"
         DBUS_SESSION_BUS_ADDRESS: "unix:path=/run/user/{{ backend_phase1_uid }}/bus"
       when: not ansible_check_mode
+      tags: [music_sync]
 
     - name: Permit NPM access to phase-one web interfaces through Aegis
       ansible.posix.firewalld:
@@ -186,3 +251,19 @@
       when:
         - backend_phase1_start_services | bool
         - not ansible_check_mode
+
+    - name: Enable the daily music copy timer
+      become_user: "{{ backend_phase1_username }}"
+      ansible.builtin.systemd:
+        name: atlas-music-sync.timer
+        scope: user
+        state: started
+        enabled: true
+        daemon_reload: true
+      environment:
+        XDG_RUNTIME_DIR: "/run/user/{{ backend_phase1_uid }}"
+        DBUS_SESSION_BUS_ADDRESS: "unix:path=/run/user/{{ backend_phase1_uid }}/bus"
+      when:
+        - backend_phase1_music_sync_enabled | bool
+        - not ansible_check_mode
+      tags: [music_sync]

ansible/roles/profile_backend_phase1/templates/atlas-music-sync.service.j2

@@ -0,0 +1,10 @@
+# Managed by Ansible. Do not edit manually.
+[Unit]
+Description=Copy Atlas Archive music to the Navidrome library
+
+[Service]
+Type=oneshot
+ExecStartPre=/usr/bin/mountpoint -q {{ backend_phase1_archive_dir }}
+ExecStartPre=/usr/bin/mountpoint -q {{ backend_phase1_music_dir }}
+ExecStartPre=/usr/bin/test -d {{ backend_phase1_music_source_dir }}
+ExecStart=/usr/bin/rsync -aH --no-perms --no-owner --no-group --delay-updates --stats -- {{ backend_phase1_music_source_dir }}/ {{ backend_phase1_music_dir }}/

ansible/roles/profile_backend_phase1/templates/atlas-music-sync.timer.j2

@@ -0,0 +1,11 @@
+# Managed by Ansible. Do not edit manually.
+[Unit]
+Description=Schedule the daily Atlas Navidrome music copy
+
+[Timer]
+OnCalendar={{ backend_phase1_music_sync_calendar }}
+Persistent=true
+Unit=atlas-music-sync.service
+
+[Install]
+WantedBy=timers.target