Backups: Add backup host config

ansible/plays/backup.yaml

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+- name: Setup Infra Meta Host
+  hosts: backup.unruhig.eu
+  gather_facts: false
+  tasks:
+    - name: Create user [backup]
+      become: true
+      ansible.builtin.user:
+        name: backup
+        comment: Used for receiving borg backups
+        shell: /bin/bash
+        create_home: true
+        state: present
+        generate_ssh_key: true
+        ssh_key_type: "ed25519"
+        ssh_key_file: ".ssh/storagebox"
+    - name: Create mount directory
+      become: true
+      become_user: backup
+      ansible.builtin.file:
+        path: "/home/backup/storagebox"
+        state: directory
+    - name: Create systemd user config directory
+      become: true
+      become_user: backup
+      ansible.builtin.file:
+        path: "/home/backup/.config/systemd/user"
+        state: directory
+    - name: Check if user is lingering
+      become: true
+      stat:
+        path: "/var/lib/systemd/linger/backup"
+      register: user_lingering
+    - name: Enable lingering for user if needed
+      become: true
+      command: "loginctl enable-linger backup"
+      when:
+        - not user_lingering.stat.exists
+    - name: Create mount unit
+      become: true
+      become_user: backup
+      ansible.builtin.template:
+        src: mount-storagebox.mount.j2
+        dest: /home/backup/.config/systemd/user/var-home-backup-storagebox.mount
+    - name: Create automount unit
+      become: true
+      become_user: backup
+      ansible.builtin.template:
+        src: mount-storagebox.automount.j2
+        dest: /home/backup/.config/systemd/user/var-home-backup-storagebox.automount
+    - name: Start storagebox Mount Service
+      become: true
+      become_user: backup
+      ansible.builtin.systemd:
+        name: var-home-backup-storagebox.mount
+        state: started
+        enabled: true
+        daemon_reload: true
+        scope: user
+    - name: enable storagebox automount Mount Unit
+      become: true
+      become_user: backup
+      ansible.builtin.systemd:
+        name: var-home-backup-storagebox.automount
+        enabled: true
+        scope: user
+
+
+# vim: ft=yaml.ansible

ansible/plays/templates/mount-storagebox.automount.j2

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+[Unit]
+Description=storagebox automount
+
+[Automount]
+Where=/var/home/backup/storagebox
+
+[Install]
+WantedBy=multi-user.target

ansible/plays/templates/mount-storagebox.mount.j2

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+[Unit]
+Description=Mount storagebox with sshfs
+After=network-online.target
+Wants=network-online.target
+
+[Install]
+WantedBy=default.target
+
+[Mount]
+What=u309229-sub6@u309229.your-storagebox.de:
+Where=/var/home/backup/storagebox
+Type=fuse.sshfs
+Options=_netdev,reconnect,delay_connect,ServerAliveInterval=30,ServerAliveCountMax=5,x-systemd.automount,Port=23,IdentityFile=/var/home/backup/.ssh/storagebox
+TimeoutSec=60