feat: add systemd timer for zomboid container stats

Deploy systemd timer that writes zomboid container stats to
zomboid-stats.json every 30 seconds for gregtime to read.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

ansible/roles/podman/tasks/containers/home/zomboid.yml

@@ -12,6 +12,84 @@
     - "{{ zomboid_path }}/server"
     - "{{ zomboid_path }}/data"
     - "{{ zomboid_path }}/scripts"
+    - "{{ zomboid_path }}/logs"
+
+- name: create podman bin directory
+  become: true
+  ansible.builtin.file:
+    path: "{{ podman_home }}/bin"
+    state: directory
+    owner: "{{ podman_user }}"
+    group: "{{ podman_user }}"
+    mode: '0755'
+
+- name: deploy zomboid world reset script
+  become: true
+  ansible.builtin.template:
+    src: zomboid/world-reset.sh.j2
+    dest: "{{ podman_home }}/bin/zomboid-world-reset.sh"
+    owner: "{{ podman_user }}"
+    group: "{{ podman_user }}"
+    mode: '0755'
+
+- name: deploy zomboid world reset path unit
+  become: true
+  ansible.builtin.template:
+    src: zomboid/zomboid-world-reset.path.j2
+    dest: "{{ podman_home }}/.config/systemd/user/zomboid-world-reset.path"
+    owner: "{{ podman_user }}"
+    group: "{{ podman_user }}"
+    mode: '0644'
+  notify: reload zomboid systemd
+
+- name: deploy zomboid world reset service unit
+  become: true
+  ansible.builtin.template:
+    src: zomboid/zomboid-world-reset.service.j2
+    dest: "{{ podman_home }}/.config/systemd/user/zomboid-world-reset.service"
+    owner: "{{ podman_user }}"
+    group: "{{ podman_user }}"
+    mode: '0644'
+  notify: reload zomboid systemd
+
+- name: deploy zomboid stats script
+  become: true
+  ansible.builtin.template:
+    src: zomboid/zomboid-stats.sh.j2
+    dest: "{{ podman_home }}/bin/zomboid-stats.sh"
+    owner: "{{ podman_user }}"
+    group: "{{ podman_user }}"
+    mode: '0755'
+
+- name: deploy zomboid stats service unit
+  become: true
+  ansible.builtin.template:
+    src: zomboid/zomboid-stats.service.j2
+    dest: "{{ podman_home }}/.config/systemd/user/zomboid-stats.service"
+    owner: "{{ podman_user }}"
+    group: "{{ podman_user }}"
+    mode: '0644'
+  notify: reload zomboid systemd
+
+- name: deploy zomboid stats timer unit
+  become: true
+  ansible.builtin.template:
+    src: zomboid/zomboid-stats.timer.j2
+    dest: "{{ podman_home }}/.config/systemd/user/zomboid-stats.timer"
+    owner: "{{ podman_user }}"
+    group: "{{ podman_user }}"
+    mode: '0644'
+  notify: reload zomboid systemd
+
+- name: enable zomboid stats timer
+  become: true
+  become_user: "{{ podman_user }}"
+  ansible.builtin.systemd:
+    name: zomboid-stats.timer
+    scope: user
+    enabled: true
+    state: started
+    daemon_reload: true
 
 - name: copy zomboid entrypoint script
   become: true
@@ -190,9 +268,14 @@
     - zomboid_ini_stat.stat.exists
   tags: zomboid-conf
 
-# World reset tasks REMOVED - too dangerous to have in automation
-# To reset the world manually:
-#   1. Stop the server: systemctl --user stop zomboid.service
-#   2. Delete saves: rm -rf /home/podman/.local/share/volumes/zomboid/data/Saves
-#   3. Delete db: rm -rf /home/podman/.local/share/volumes/zomboid/data/db
-#   4. Start the server: systemctl --user start zomboid.service
+# World reset is now triggered via Discord bot -> systemd path unit
+# See zomboid-world-reset.path and zomboid-world-reset.service
+- name: enable zomboid world reset path unit
+  become: true
+  become_user: "{{ podman_user }}"
+  ansible.builtin.systemd:
+    name: zomboid-world-reset.path
+    scope: user
+    enabled: true
+    state: started
+    daemon_reload: true

ansible/roles/podman/templates/zomboid/zomboid-stats.service.j2

@@ -0,0 +1,6 @@
+[Unit]
+Description=Write Zomboid container stats to file
+
+[Service]
+Type=oneshot
+ExecStart={{ podman_home }}/bin/zomboid-stats.sh

ansible/roles/podman/templates/zomboid/zomboid-stats.sh.j2

@@ -0,0 +1,3 @@
+#!/bin/bash
+# Write zomboid container stats to file for gregtime to read
+podman stats --no-stream --format json zomboid 2>/dev/null > {{ gregtime_path }}/data/zomboid-stats.json || true

ansible/roles/podman/templates/zomboid/zomboid-stats.timer.j2

@@ -0,0 +1,9 @@
+[Unit]
+Description=Update Zomboid container stats every 30 seconds
+
+[Timer]
+OnBootSec=30s
+OnUnitActiveSec=30s
+
+[Install]
+WantedBy=timers.target