tasks for backup server

roles/backup/tasks/main.yml

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+# Load distro-specific variables
+- include_vars: "{{ ansible_distribution }}.yml"
+  tags: always
+  ignore_errors: True
+
+- block:
+  - debug:
+      msg: Debug
+  # basics
+  - import_tasks: software/packages_utilities.yml
+
+  # Perform remaining tasks:
+  - import_tasks: system_setup/cron.yml
+  - import_tasks: system_setup/copy_backup_config.yml
+
+  - debug:
+      msg: hostvars.hosts_to_backup
+
+  rescue:
+    - set_fact: task_failed=true

roles/backup/tasks/software/packages_utilities.yml

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+- name: backup | utilities | install utility packages
+  tags: packages,system,system setup
+  package:
+    state: latest
+    name:
+      - sudo
+      - rsync
+
+- name: backup | utilities | install utilities (arch)
+  tags: packages,system,system setup
+  package:
+    state: latest
+    name:
+      - mariadb-clients
+  when: ansible_distribution == "Archlinux"
+
+- name: backup | utilities | install utilities (debian)
+  tags: packages,system,system setup
+  package:
+    state: latest
+    name:
+      - mariadb-client
+  when: ansible_distribution == "Debian"

roles/backup/tasks/system_setup/copy_backup_config.yml

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+- name: backup | system setup | create backup config directory
+  file:
+    path: "/opt/backup/"
+    state: directory
+
+- name: backup | system setup | copy backup config files
+  copy:
+    dest: "/opt/backup/config"
+    src: "config"
+
+- name: backup | system setup | add entries to ssh_config
+  template:
+    src: "ssh_config.j2"
+    dest: "{{ ansible_user }}/.ssh/config"
+    backup: true
+    mode: "0644"

roles/backup/tasks/system_setup/cron.yml

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+- name: backup | system setup | cron
+  become: true
+  become_user: root
+  cron:
+    name: "backup {{ item.sequence }}"
+    job: "/root/bin/backup.new {{ item.switch }}"
+    state: present
+    minute: "{{ item.minute }}"
+    hour: "{{ item.hour }}"
+    day: "{{ item.day }}"
+    month: "{{ item.month }}"
+  loop:
+    - { sequence: "daily", switch: "-d", minute: "0", hour: "3", day: "*", month: "*"}
+    - { sequence: "weekly", switch: "-w", minute: "0", hour: "4", day: "*", month: "*"}
+    - { sequence: "monthly", switch: "-m", minute: "30", hour: "6", day: "1", month: "*"}
+    - { sequence: "yearly", switch: "-y", minute: "59", hour: "23", day: "31", month: "12"}

roles/backup/templates/ssh_config.j2

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+{% for host in hostvars[inventory_name]['hosts_to_backup'] %}
+Host {{ host.hostname }}_backup
+    Hostname {{ host.fqdn }}
+    User root
+    IdentityFile ~/.ssh/backup_ed25519
+    IdentitiesOnly yes
+{% endfor %}